Brad, great review! I just finished a 131" build on my Low Rider S in my garage. This video and the three part one of the M8 Breakout build was important to me for reference, Thanks!
Your stock HD pistons are cast, the SE pistons are forged, forged pistons expand less, hense the tighter tolerances, both pistons seal at temperature to same dimention. Warm that stock HD up before romping on it to avoid "slap"
I agree with your statement. I just talk about whats on my mind and sometimes it comes out not as intended. I noticed it wasn't clear during editing but left it anyways. I wasn't trying to say stock piston clearance causes piston slap or that "Myself" in anyway determines piston clearance. Or that either of the OEM or SE pistons have any piston slap. I completely believe in the engineers that make these things to set the clearances appropriately. While I said it in the video I was thinking of a past experience where I found the piston to cylinder fit to be double the service ware limit and it was piston slapping like a mofo. I do like tight piston fits tho, and was also astonished with how tight the new SE pistons are. Thanks for the question and the view!
I see the ceramic coating on the original piston crowns is completely gone! How many miles did it last? cast vs forged (mahle) have different expansion rates. Forty years ago forged pistons required more clearance and so rattled more than oem cast. Don't know about current designs.
Great videos!! A suggestion for your next video... with riding seasons just around the corner how about a video inspecting the bike and torqued to specs prior to jumping on the bike prior to the riding season.
Thanks for the video! Just dropped mine off to do the 131. From what I could tell the128/131 kit is exactly the same except for badging as the crank/stroke is what is different between 107/114. How was the power with the VH power duals?
Thanks for taking the time to go over details that others dont Touch on👍👍 or have no clue about. Have you seen starpower/starracing pistons on there trasher kit.
I haven't seen that kit in person nor do I have any direct experience with star-racing. Ive seen some cool pics of stuff they've done, and when I hear people talk about them I've only heard good things. Thanks for the comment and view!
Now that Harley has opened up the Softail lines to get the 131, I plan to get one on a Heritage. Correct me if I'm wrong, but the 131 crate is already installed as a stage 4, correct?
Yes. So you would buy the stage 4 131 Kit and put it on the 114 heritage. Or you can buy the stage 4 131 crate motor pre-assembled, and then have it dropped into your heritage at the dealership.
@@HarleyDavidsonWizard Oh....the fun I'm going to have with that. My wife is gonna love me. My neighbors are gonna hate me. Especially when I put the TAB Zombie baffles on it.
I brought it up to my wife. Her response was "How much?" After I told her, she grinned and ok'd it. I was like, "You have no idea what you just unleashed." But she loves to ride too so it'll be a blast.
I didn't do dynos on these kits in there "as pictured" configuration but here is links to the kits on the Harley Davidson website and they have listed performance numbers 131 Kit www.harley-davidson.com/store/milwaukee-eight-engine-stage-iv-kit-114ci-or-117ci-to-131ci-pa-18-92500082-1 128 Kit www.harley-davidson.com/store/milwaukee-eight-engine-stage-iv-kit-107ci-to-128ci-pa-18-92500078-1
Thank You for the Excellent, informative video Brad! I bought a 128 Kit for my 2020 FXLR, and your comprehensive examination of each individual part in the kit confirmed my decision to do so. One observation though, regarding reliability is it wise to put such a powerful top-end on a Stock lower-end? I personally doubt it, and that is why I'm having Darkhorse Crankworks Strengthen and Blueprint my lower-end as well. Thanks Again, Greg in Boise, Idaho
awesome video BRad, thank you for doing all the videos , editing and talking and explaining, super a lot of effort! thank u! you mentioned that the SE blocks comes hatched already do the pistons come matched each cylinder? or do they come either or cylinder?
@@HarleyDavidsonWizard thanks for the reply buddy, probably isn't easy managing a full time job, editing videos and narrating and filming... reason i asked the question about piston and cylinder matched is because i am wanting to go with this stage iv upgrade in the near future, but on my previous build, quite a few many years ago, i remember that i had to send my new ceramic coated pistons along with my cylinders to the machinist to re-bore and hatch for them to match each piston to each cylinder, when they came back i remember having 1 and 2 written on the piston head indicating the cylinder it was matched to. tia
Mahle makes great stuff, Germans usually design and build good stuff. I’ve been riding Harley’s since I was 17 and I’m not bashing but in my experience, Zippers is where my $$$ are going if I’m gonna invest in H-D Performance. Thanks for the breakdown Wizard you do great work! Great job showing the weakness in the factory design of the induction hardened lobes only on the cams and showing the rocking coupling of the pistons in the bores. Old Harley’s needed really big clearances in the fit because of old time material and newer metallurgy has enabled us to have tighter fits and less noise. Once again Wizard you are doing fantastic explanations for guys who haven’t been able to get the mechanical education you have and it’s greatly appreciated! Subscribed!
It depends on the situation. The crate 131 is exactly the same components as a stock 114/117 with the addition of the 131 kit. Same engine cases/bearings/cylinders/pistons/heads ect. They both can be covered by your factory warranty if installed in the first 60 days of bike purchase. On the flip side if the bike is older than 60 days the complete engine carries a 1yr warranty where the 131 kit is "over the counter warranty, 60 days I believe). Complete engines have always in past, have been supplied with a MSO so the vin numbers didn't match. I would expect that to be the same. Just two options of the exact same thing. Thanks for the question and view!
@@HarleyDavidsonWizard Considering that we Harley owners often change bikes, owning the whole engine makes sense to me, as the original engine can be put back in when you go to sell your bike. Or, conversely, you could sell the original motor to recoup some of the cost of the crate motor.
I would think that the piton head is grooved so that when the piston keeps from doing a coin effect. Meaning it will not stick like glue with a mating part. If I understood what you were showing. Just an idea.
How does this kit effect fuel mileage? I have a stock 107 that gets great fuel milage.... i was told maybe 1 or 2 mpg less on the same bike as mine with a 128 kit stage 4. A mpg or 2 wouldn't bother me but 5 and I wouldn't do this for my purposes. I don't do short rides and 220-240 between fuel stops is pretty normal for me.
I dont have any direct experience in regard to fuel mileage so I can neither confirm or deny. But my feedback from customers is theres no detectable difference in fuel mileage.
The bigger the cubes the hotter it runs? In summer around town 100 + temps, can it handle the heat? My 103 runs hot as F all summer, so a 131ci doesn't? Just asking.
We'll just have to wait and see. In my opinion, it seams like the twin cooling on the twin cam was an afterthought of the originally deigned twin cam. Where as the Milwaukee 8 definitely seams like it was deigned around twin and oil cooled. The oil cooling on the Milwaukee 8, I find to be really impressive. The twin cams were hot AF but the Milwaukee 8 is a lot different. With this 131 kit the oil cooled models do come with a cooling fan so the added performance must equate to some extra heat. But we'll have to wait till riding season to see. Thanks for the question and the view!
@@HarleyDavidsonWizard Thanks for the reply. My problem with harley as of late, if I blow my wallet on a 131 build they'll come out with a 151 build as soon as I do it.
@@harleycrasher8396 As far as a "bolt on, big bore kit goes" 131 is the biggest without changing the flywheel. The screaming eagle cylinder sleaves are made out of tool steel because the spigot that fits into the engine case is super thin. There is no way a bigger bore kit will ever fit in a stock "un machined" case guaranteed. Just FYI. There are 150+ kits out there now, but obviously there aftermarket.
Mr Brad, I see that Harley justifies the fan assisted oil cooler for the 131 vs no fan assist for the 128. Unless you left it off of the 128 table due to redundancy. My question is do you feel that the fan assisted oil cooler is warranted, and if so, what size motor would you personally add to the build? 117, 124...? As always, thanks for the great vids and info!
The 128 was liquid cooled so it didn't get the the fan. The fan only comes on oil cooled kits. But personally I'd put the fan assisted oil cooler any bike with upgraded heads and bigger cylinders.
You know for years everyone kept polishing intake ports, and although you do end up with a greater volume if you remove metal from an opening, I still think that a smooth surface causes droplets to form, which then shoot into the combustion chamber and cause a "false" rich condition. When in reality you are actually leaning out your engine as engine managment compensates. And nevermind the cool drops of fuel that sprinkle some of the hottest engine components such as valves, that are thrown off that smooth polished surface. But... these are just my thoughts on the subject, so its a personal opinion that may or may not be 100% the case, but I still prefer a rough or dimpled surface on intake ports. And also there is the golf ball proven theory, that suggests dimples on a golf ball, cause it to be more aerodynamic, and thereby it flies further than a smooth golf ball would. Like I said its my opinion, you like your intake polished... by all means, its your engine.
Big question is. The 131 crate or kit. You have a 64mm throttle body. So what air cleaners work on this 131 64mm throttle body HPi has 62mm 68mm or 70mm M8
The touring 131 kits I've done come with a oil cooler fan to help with the heat. I havent done any specific testing but I would say the 131 kits run hotter that normal 114/117 bikes. But that's to be expected. More power creates more heat. I havent seen any over 128 or 131 bikes come in for "overheating" problems or concerns tho. So only time will tell.
mahle pistons are maaa-leee. Also notice 117 piston has ceramic coated top land. I think the piston crown was also ceramic coated originally? Looks like its burned off. I wonder why?
Would the 128 or 131 kit be able to go into my Tri Glide without shredding drive belts all the time? I had a 120 kit in my 91 fxr and couldn't keep belts on that thing.
No I'm not an old timer, I ride a trike because I'm missing both legs. Everyone asks why a trike? Who wants to do everything I'm doing.... Cause I'm only 35 hahaha
The 128 and 131 kits do physically fit on the Triglide, but they are not listed in the catalog as compatible. So yes, you could do the 128 or 131 kit but you wouldn’t be able to have any warranty support and you wouldn’t be able to use the screaming Eagle Street tuner because there wouldn’t be a tune that Harley Davidson offers for a trike combination, at this time currently. That being said, if you wanted to do a big bore kit for example, if you came into our dealership I would be thinking the T-man big bore cylinders and then he would be able to size a cam that’s better suited to the weight of the trike and then you could ported heads and throttle body and all that as well along with having a custom tune. I’ve done just the t-man big bore cylinders (at the time he offered 124 and 128 kits) and a t-man cam, Stock heads and stock throttle body and it’s a freight train of torque, and that’s just what a trike needs. But also aftermarket parts aren’t 50state legal and do technically void the factory powertrain warranty. Thanks for the question!
Also belts are very strong and capable of holding power but the weak point of the belt is shock loading, The weak point of the Harley Davison drive belts are always the teeth. When we do a build that is really high performance in a vehicle thats keeping the stock drive belt the best way to get longevity out of the drive belt is to run it and at its tightest recommended setting and avoiding dumping the clutch or wheelies etc. So it depends a lot on your riding style, you can have a lot of power and have a lot of fun with it, rolling on the throttle. Also I was just talking to the girlfriend last night about how much I’d like to have a milwaukee 8 trike and set it up with a fat nasty engine. I’ve seen some pretty sweet custom built trikes and if the opportunity comes around to pick up a salvage or mechanically damaged trike, I’m getting one!! There just in my budget at this time. Thanks for the view and the comment. BTY if you wanted a performance increase on your trike and you still wanted to keep it under warranty and still wanted it to be covered under extended service protection the Harley Davidson torque cam is a good option.
Can you email me by chance to talk about a few things? armygreen82nd@gmail.com if you've got a chance. I'd like to pick your brain about this a little more.
Larry Ford if only H.D can build engine like my new 2020 KTM 1290 Super Duke R. Forged pistons, Titanium valves, pankyl transmission, showerhead injectors for high rpm power. This is a choke out bike from new regulations worse than California, Euro 5. Screaming eagle engine should be available on the FAT BOB at $25K+
Harley Davidson Wizard would be interesting to see, everyone is whining about the “low” numbers but they forget to realize that’s EPA spec power. If a stock m8 114 can make 110ish hp/120ish tq with a cam, pipes and intake just imagine what a non compliant 131 would make...
I have a custom 124ci, put down 148hp-143ftlbs. Mahle flat tops, knight prowler cam and springs. These motors are nasty AF if you just build your own via a reputable shop. I can’t imagine a 131 now.
Not bashing, just telling you that at 3000rpm the piston moves up and down 100 times a second. It's a 4 stroke engine so for 1 revolution of the engine you have 4 strokes in that event. So yes quality parts are a great idea for durability.
I guess my math was 3000 revolutions of the crankshaft (Revolutions Per Minute) and divided that by 60 (because 60 seconds in a minute) and one crankshaft revolution = the piston going up and down once. So that's how I got 3000/60=50. Thanks for the comment and view!
You need check out star racing! George is a nhra pro stock engine builder and a racer! The same with Zipper performance these guys have forgot more than most people know!
What’s the difference in the 131 kit vs the 131 Crate engine compared to what your showing? I’m going for a 107 to 131 so far the crate seems best bang for the buck
Exactly nothing. But as a side note you need a 114 or 117 flywheel to do the harley 131 kit. If your plan on using your 107 flywheel, you'll need the 128 harley kit. But in the end its the exact same as the crate engine.
Sad that H.D can't even make engine like KTM 1290 Super Duke R at 103 ft/lbs and 180 hp. 3 oil coolers, shower head injectors, Titanium valves, shower head injectors. This is a bike with Euro 5 and 3 cats in exhaust,that's just preventing lots of untapped power. H.D got step up there game we boomers are not going be around forever. Excellent video just a shame this engine doesn't come stock on the FAT BOB.
It is a nice set up from Harley unfortunately the aftermarket parts that you can get are cheaper and give you more torque and more horsepower. The 128 or 131 should be on a CVO not a 117 in my opinion, hopefully Harley will catch up to the aftermarket world one day.
gemini232003 There is only one state in the 50 that Harley has to worry about with the EPA and that is California. I believe the other 49 are pretty much equal across the board. As for the other countries they are handled by the overseas Harley department for those countries. But as for this country the 131 is nice but again the aftermarket parts which I have put in my Harley are less expensive, are as good if not better than the quality of Harley, and it gives me more torque and horsepower. Harley still needs to catch up to the aftermarket manufacturers.
Hard to believe somebody would spend a small fortune on a motorcycle to begin with and then shell out At least $5000.00 parts and labor to run heads up with a 300 cc. Honda !
I’m doing the 131 crate from 107, having them put on oil cooler with fan, 11 plate screamin Eagle clutch, and 1275N heavy duty clutch springs, plus I’ll have D&D Billet Cat with a big Bore Baffles 2-1, HPi 62mm A/C, Screamin Eagle pro tuner, put 500 miles on it and they will check it out and then do a dyno tune.
Cams are 512 or 517? Wish they did 6.2 or 6.4 or 7.1 for injectors, be it doing the 131 for 131 or doing the 131 kit on the 107 for 128 6.2-7.1 injectors would make that 64mm TB throttle body work the kit combo to its potential. Then do either an S&S 475 or 550 Cams
Brad, great review! I just finished a 131" build on my Low Rider S in my garage. This video and the three part one of the M8 Breakout build was important to me for reference, Thanks!
You're welcome. The 131 in the softails are awesome!!
Your stock HD pistons are cast, the SE pistons are forged, forged pistons expand less, hense the tighter tolerances, both pistons seal at temperature to same dimention. Warm that stock HD up before romping on it to avoid "slap"
I agree with your statement. I just talk about whats on my mind and sometimes it comes out not as intended. I noticed it wasn't clear during editing but left it anyways. I wasn't trying to say stock piston clearance causes piston slap or that "Myself" in anyway determines piston clearance. Or that either of the OEM or SE pistons have any piston slap. I completely believe in the engineers that make these things to set the clearances appropriately. While I said it in the video I was thinking of a past experience where I found the piston to cylinder fit to be double the service ware limit and it was piston slapping like a mofo. I do like tight piston fits tho, and was also astonished with how tight the new SE pistons are. Thanks for the question and the view!
Love this, was really concerned about doing the upgrade on my new Street Glide. Now I feel it was a good decision.
I see the ceramic coating on the original piston crowns is completely gone! How many miles did it last?
cast vs forged (mahle) have different expansion rates. Forty years ago forged pistons required more clearance and so rattled more than oem cast. Don't know about current designs.
Great videos!! A suggestion for your next video... with riding seasons just around the corner how about a video inspecting the bike and torqued to specs prior to jumping on the bike prior to the riding season.
That's a great idea. I'll probably do that! Thanks for the comment and view!
Great video, with great info. Thanks for sharing. Cheers
Thanks for the complement and the view!
What is the combustion chamber cc for the new M8 Extream CNC heads?
not sure
Thanks for the video! Just dropped mine off to do the 131. From what I could tell the128/131 kit is exactly the same except for badging as the crank/stroke is what is different between 107/114. How was the power with the VH power duals?
Great video Brad!!!
Thanks for the comment and view!!
Thanks for taking the time to go over details that others dont Touch on👍👍 or have no clue about. Have you seen starpower/starracing pistons on there trasher kit.
I haven't seen that kit in person nor do I have any direct experience with star-racing. Ive seen some cool pics of stuff they've done, and when I hear people talk about them I've only heard good things. Thanks for the comment and view!
@@HarleyDavidsonWizard look him up on IG . He says his piston create - pressure in the crankcase .
Now that Harley has opened up the Softail lines to get the 131, I plan to get one on a Heritage. Correct me if I'm wrong, but the 131 crate is already installed as a stage 4, correct?
Yes. So you would buy the stage 4 131 Kit and put it on the 114 heritage. Or you can buy the stage 4 131 crate motor pre-assembled, and then have it dropped into your heritage at the dealership.
@@HarleyDavidsonWizard Oh....the fun I'm going to have with that. My wife is gonna love me. My neighbors are gonna hate me. Especially when I put the TAB Zombie baffles on it.
The 131 is alot of fun. I'd love to have one myself.
I brought it up to my wife. Her response was "How much?"
After I told her, she grinned and ok'd it. I was like, "You have no idea what you just unleashed." But she loves to ride too so it'll be a blast.
Mad 🤘
I hat sort of power do these put out. Be keen to see the Dyno tune graphs when done if ya get them. Cheers
I didn't do dynos on these kits in there "as pictured" configuration but here is links to the kits on the Harley Davidson website and they have listed performance numbers
131 Kit www.harley-davidson.com/store/milwaukee-eight-engine-stage-iv-kit-114ci-or-117ci-to-131ci-pa-18-92500082-1
128 Kit www.harley-davidson.com/store/milwaukee-eight-engine-stage-iv-kit-107ci-to-128ci-pa-18-92500078-1
Harley Davidson Wizard Kool. Much appreciated 😎👍
Piston slap is a byproduct of short skirted piston design
Thank You for the Excellent, informative video Brad! I bought a 128 Kit for my 2020 FXLR, and your comprehensive examination of each individual part in the kit confirmed my decision to do so. One observation though, regarding reliability is it wise to put such a powerful top-end on a Stock lower-end? I personally doubt it, and that is why I'm having Darkhorse Crankworks Strengthen and Blueprint my lower-end as well. Thanks Again, Greg in Boise, Idaho
Very welcome!
what type of fuel millage does this kit get on 2020 street glide?
awesome video BRad, thank you for doing all the videos , editing and talking and explaining, super a lot of effort! thank u! you mentioned that the SE blocks comes hatched already do the pistons come matched each cylinder? or do they come either or cylinder?
The cylinders come ready to install, just clean and assemble. The cylinders arnt set to the "specific piston size" Is a mass manfacturing thing.
@@HarleyDavidsonWizard thanks for the reply buddy, probably isn't easy managing a full time job, editing videos and narrating and filming... reason i asked the question about piston and cylinder matched is because i am wanting to go with this stage iv upgrade in the near future, but on my previous build, quite a few many years ago, i remember that i had to send my new ceramic coated pistons along with my cylinders to the machinist to re-bore and hatch for them to match each piston to each cylinder, when they came back i remember having 1 and 2 written on the piston head indicating the cylinder it was matched to. tia
Mahle makes great stuff, Germans usually design and build good stuff. I’ve been riding Harley’s since I was 17 and I’m not bashing but in my experience, Zippers is where my $$$ are going if I’m gonna invest in H-D Performance. Thanks for the breakdown Wizard you do great work! Great job showing the weakness in the factory design of the induction hardened lobes only on the cams and showing the rocking coupling of the pistons in the bores. Old Harley’s needed really big clearances in the fit because of old time material and newer metallurgy has enabled us to have tighter fits and less noise. Once again Wizard you are doing fantastic explanations for guys who haven’t been able to get the mechanical education you have and it’s greatly appreciated! Subscribed!
Thanks for the complement!! I'll keep it up!!!
Would it be better to buy the crate 131?
It depends on the situation. The crate 131 is exactly the same components as a stock 114/117 with the addition of the 131 kit. Same engine cases/bearings/cylinders/pistons/heads ect. They both can be covered by your factory warranty if installed in the first 60 days of bike purchase. On the flip side if the bike is older than 60 days the complete engine carries a 1yr warranty where the 131 kit is "over the counter warranty, 60 days I believe). Complete engines have always in past, have been supplied with a MSO so the vin numbers didn't match. I would expect that to be the same. Just two options of the exact same thing. Thanks for the question and view!
@@HarleyDavidsonWizard Considering that we Harley owners often change bikes, owning the whole engine makes sense to me, as the original engine can be put back in when you go to sell your bike. Or, conversely, you could sell the original motor to recoup some of the cost of the crate motor.
Very nice explanations.
Thanks. I appreciate the comment. Thanks for the view!
The ports that feel smooth to the touch don’t promote flow via the surface but TURBULENCE.🙂
👍 Thanks for the information!
I wonder were the cams are made, because of the quality looking aspect
Throw on the SE CNC Ported Extreme 64mm manifold. Get a handful of extra ponies. That’s a great add-on!
James Crean they have a larger chamber than the other SE heads, so can’t be used on a smaller bore
I would think that the piton head is grooved so that when the piston keeps from doing a coin effect. Meaning it will not stick like glue with a mating part.
If I understood what you were showing.
Just an idea.
How does this kit effect fuel mileage? I have a stock 107 that gets great fuel milage.... i was told maybe 1 or 2 mpg less on the same bike as mine with a 128 kit stage 4. A mpg or 2 wouldn't bother me but 5 and I wouldn't do this for my purposes. I don't do short rides and 220-240 between fuel stops is pretty normal for me.
I dont have any direct experience in regard to fuel mileage so I can neither confirm or deny. But my feedback from customers is theres no detectable difference in fuel mileage.
@@HarleyDavidsonWizard thanks for responding. Im sure fuel milage depends on the operator as well. But you confirm that there's not a huge difference.
Ya if you run the street tuner map. Fuel mileage wont change much. Or if you have someone good tune it, it also wont affect mileage much.
Its a shame its not available in the in the UK would order one today,great video.
Maybe in the future, who knows! Thanks for the complement and the view!
Definitely gotta throw this out there . A change dies not mean better . Looking bad ass does not mean more performance .
Lee Price true story!
Just ordered my 131 ci for my lowrider s can wait in October in Europe ✌️
That's awesome! You'll enjoy it!!
The bigger the cubes the hotter it runs? In summer around town 100 + temps, can it handle the heat? My 103 runs hot as F all summer, so a 131ci doesn't? Just asking.
harley crasher - M8 doesn’t seem to run near as hot as TC’s did.
We'll just have to wait and see. In my opinion, it seams like the twin cooling on the twin cam was an afterthought of the originally deigned twin cam. Where as the Milwaukee 8 definitely seams like it was deigned around twin and oil cooled. The oil cooling on the Milwaukee 8, I find to be really impressive. The twin cams were hot AF but the Milwaukee 8 is a lot different. With this 131 kit the oil cooled models do come with a cooling fan so the added performance must equate to some extra heat. But we'll have to wait till riding season to see. Thanks for the question and the view!
@@HarleyDavidsonWizard Thanks for the reply. My problem with harley as of late, if I blow my wallet on a 131 build they'll come out with a 151 build as soon as I do it.
@@harleycrasher8396 As far as a "bolt on, big bore kit goes" 131 is the biggest without changing the flywheel. The screaming eagle cylinder sleaves are made out of tool steel because the spigot that fits into the engine case is super thin. There is no way a bigger bore kit will ever fit in a stock "un machined" case guaranteed. Just FYI. There are 150+ kits out there now, but obviously there aftermarket.
@@HarleyDavidsonWizard What kind of 'Tool steel? If it was HSS, interesting, but carbon tool steel is no great fix.
Mr Brad, I see that Harley justifies the fan assisted oil cooler for the 131 vs no fan assist for the 128. Unless you left it off of the 128 table due to redundancy. My question is do you feel that the fan assisted oil cooler is warranted, and if so, what size motor would you personally add to the build? 117, 124...? As always, thanks for the great vids and info!
The 128 was liquid cooled so it didn't get the the fan. The fan only comes on oil cooled kits. But personally I'd put the fan assisted oil cooler any bike with upgraded heads and bigger cylinders.
@@HarleyDavidsonWizard the fan operated coolers are nice
So technical with the piston clearance.....
hey brad, what would it take for these to go into a softail?
It would fit in a softail no problem. It would just need an aftermarket tune and exhaust.
😂Joe Blow with his Ball Hone😂
You know for years everyone kept polishing intake ports, and although you do end up with a greater volume if you remove metal from an opening, I still think that a smooth surface causes droplets to form, which then shoot into the combustion chamber and cause a "false" rich condition. When in reality you are actually leaning out your engine as engine managment compensates. And nevermind the cool drops of fuel that sprinkle some of the hottest engine components such as valves, that are thrown off that smooth polished surface.
But... these are just my thoughts on the subject, so its a personal opinion that may or may not be 100% the case, but I still prefer a rough or dimpled surface on intake ports. And also there is the golf ball proven theory, that suggests dimples on a golf ball, cause it to be more aerodynamic, and thereby it flies further than a smooth golf ball would. Like I said its my opinion, you like your intake polished... by all means, its your engine.
Big question is. The 131 crate or kit. You have a 64mm throttle body. So what air cleaners work on this 131 64mm throttle body HPi has 62mm 68mm or 70mm M8
The harley induction module uses a normal air filter kit. Nothing special is needed.
@@HarleyDavidsonWizard I talked to HPi I was told 62mm one use for 64mm even the 55mm one will work with the V02 since it produces over 428cfm.
Can you put a 131 on a liquid cooled heads?
Yes. The harley davidson 131 kits are also sold for liquid cooled models.
Thanks Brad, is it true that they run hot? Could be a good idea to have them on the liquid cooled one!
The touring 131 kits I've done come with a oil cooler fan to help with the heat. I havent done any specific testing but I would say the 131 kits run hotter that normal 114/117 bikes. But that's to be expected. More power creates more heat. I havent seen any over 128 or 131 bikes come in for "overheating" problems or concerns tho. So only time will tell.
Ah ok , Thanks Wizard! 😁👍
Where are you located
I work out of motor city harley davidson in farmington Hills MI
@@HarleyDavidsonWizard I want to build my motor but looking for someone in texas smh all the cool guys are far lol
When is new stuff going out.. where u been☹️☹️☹️
Mahle is pronounced - Mah-lee not Ma-hawl, at least that's the way I've always heard it. What is the bore size on the 128 cylinders? Nice vid!
I'll have to get that pronunciation figured out. I hate sounding like like a noob. the 128 kit is 4.31". Thanks for the comment and the view!
@@HarleyDavidsonWizard my s&s 128 cylinders are 4.250
Slightly rough intake ports help with fuel atomization .. I don't knew where the fuel gets injected at..
mahle pistons are maaa-leee. Also notice 117 piston has ceramic coated top land. I think the piston crown was also ceramic coated originally? Looks like its burned off. I wonder why?
Will S&S 475 cam work better with 131 kit than SE cam
The 475 is more of a "stock engine upgrade" the 131 kit would do better with a bigger cam.
@@HarleyDavidsonWizard do you have any suggestion, driving is aggressive and 2 up for long trips on highways
what about 590 from S&S
I'd call s&s and ask them for a recommendation. That's what I normally do with T-man suff and it always comes out great.
I can't figure out how to mount these to my Sporster. Any ideas?
You gotta stop by Home Depot they have the hole saws to bore your cases out. Don’t go to harbor freight, they only have metric ones! Lol
GET A BIGGER SPORTSTER
Would the 128 or 131 kit be able to go into my Tri Glide without shredding drive belts all the time? I had a 120 kit in my 91 fxr and couldn't keep belts on that thing.
No I'm not an old timer, I ride a trike because I'm missing both legs. Everyone asks why a trike? Who wants to do everything I'm doing.... Cause I'm only 35 hahaha
The 128 and 131 kits do physically fit on the Triglide, but they are not listed in the catalog as compatible. So yes, you could do the 128 or 131 kit but you wouldn’t be able to have any warranty support and you wouldn’t be able to use the screaming Eagle Street tuner because there wouldn’t be a tune that Harley Davidson offers for a trike combination, at this time currently. That being said, if you wanted to do a big bore kit for example, if you came into our dealership I would be thinking the T-man big bore cylinders and then he would be able to size a cam that’s better suited to the weight of the trike and then you could ported heads and throttle body and all that as well along with having a custom tune. I’ve done just the t-man big bore cylinders (at the time he offered 124 and 128 kits) and a t-man cam, Stock heads and stock throttle body and it’s a freight train of torque, and that’s just what a trike needs. But also aftermarket parts aren’t 50state legal and do technically void the factory powertrain warranty. Thanks for the question!
Also belts are very strong and capable of holding power but the weak point of the belt is shock loading, The weak point of the Harley Davison drive belts are always the teeth. When we do a build that is really high performance in a vehicle thats keeping the stock drive belt the best way to get longevity out of the drive belt is to run it and at its tightest recommended setting and avoiding dumping the clutch or wheelies etc. So it depends a lot on your riding style, you can have a lot of power and have a lot of fun with it, rolling on the throttle. Also I was just talking to the girlfriend last night about how much I’d like to have a milwaukee 8 trike and set it up with a fat nasty engine. I’ve seen some pretty sweet custom built trikes and if the opportunity comes around to pick up a salvage or mechanically damaged trike, I’m getting one!! There just in my budget at this time. Thanks for the view and the comment. BTY if you wanted a performance increase on your trike and you still wanted to keep it under warranty and still wanted it to be covered under extended service protection the Harley Davidson torque cam is a good option.
Can you email me by chance to talk about a few things? armygreen82nd@gmail.com if you've got a chance. I'd like to pick your brain about this a little more.
Heads maybe exhaust valves done 2mm over and intake 1mm over.
Your thoughts on that?
What is the cost of each kit ?
The Kits cost $3500. Depending on year and model you'll also need a high flow air cleaner kit, screaming eagle street tuner and 10 plate clutch pack.
When your spending $30k on a motorcycle there should not be any corners cut on the quality of parts.
When you're spending $30K on a motorcycle the performance should already be equal to what the 131 & 128 SE Stage 4 are.
I can't help but notice that I've never heard Gold Wing or K1600GTL owners complain about quality, cut corners, mo $ for performance...🤔
Larry Ford if only H.D can build engine like my new 2020 KTM 1290 Super Duke R. Forged pistons, Titanium valves, pankyl transmission, showerhead injectors for high rpm power. This is a choke out bike from new regulations worse than California, Euro 5. Screaming eagle engine should be available on the FAT BOB at $25K+
Makes me wonder what kind of power it’d make with a real tune, cam and no cat... 👀
I know! I'm hoping someone comes in and does a setup like that so we can find out!! Thanks for the question and the view!
Harley Davidson Wizard would be interesting to see, everyone is whining about the “low” numbers but they forget to realize that’s EPA spec power. If a stock m8 114 can make 110ish hp/120ish tq with a cam, pipes and intake just imagine what a non compliant 131 would make...
I have a custom 124ci, put down 148hp-143ftlbs. Mahle flat tops, knight prowler cam and springs. These motors are nasty AF if you just build your own via a reputable shop. I can’t imagine a 131 now.
@@richardheusted ya. We've done tman 128 kits with great results. The Milwaukee platform deffentally can bet alot of fun. These 131's have potential.
Not bashing, just telling you that at 3000rpm the piston moves up and down 100 times a second. It's a 4 stroke engine so for 1 revolution of the engine you have 4 strokes in that event. So yes quality parts are a great idea for durability.
I guess my math was 3000 revolutions of the crankshaft (Revolutions Per Minute) and divided that by 60 (because 60 seconds in a minute) and one crankshaft revolution = the piston going up and down once. So that's how I got 3000/60=50. Thanks for the comment and view!
Puts all the power on the Piston ? Uh what ?
Thats what happens when you don't read from a script. Lol. Sometimes I say dumb things. Lol
Harley Davidson Wizard happens to all of us lol. I like your videos ! Good content. Keep it up.
You need check out star racing! George is a nhra pro stock engine builder and a racer! The same with Zipper performance these guys have forgot more than most people know!
I completely agree!!
What’s the difference in the 131 kit vs the 131 Crate engine compared to what your showing?
I’m going for a 107 to 131 so far the crate seems best bang for the buck
Exactly nothing. But as a side note you need a 114 or 117 flywheel to do the harley 131 kit. If your plan on using your 107 flywheel, you'll need the 128 harley kit. But in the end its the exact same as the crate engine.
@@HarleyDavidsonWizard guess I’m going crate
There alot of fun. You'll enjoy it! 👍
@@HarleyDavidsonWizard thanks 👍🏻
Sad that H.D can't even make engine like KTM 1290 Super Duke R at 103 ft/lbs and 180 hp. 3 oil coolers, shower head injectors, Titanium valves, shower head injectors. This is a bike with Euro 5 and 3 cats in exhaust,that's just preventing lots of untapped power. H.D got step up there game we boomers are not going be around forever. Excellent video just a shame this engine doesn't come stock on the FAT BOB.
titanium is light but wont last like steel
It is a nice set up from Harley unfortunately the aftermarket parts that you can get are cheaper and give you more torque and more horsepower. The 128 or 131 should be on a CVO not a 117 in my opinion, hopefully Harley will catch up to the aftermarket world one day.
gemini232003 There is only one state in the 50 that Harley has to worry about with the EPA and that is California. I believe the other 49 are pretty much equal across the board. As for the other countries they are handled by the overseas Harley department for those countries. But as for this country the 131 is nice but again the aftermarket parts which I have put in my Harley are less expensive, are as good if not better than the quality of Harley, and it gives me more torque and horsepower. Harley still needs to catch up to the aftermarket manufacturers.
Looks Ghetto, great description, Harley on the cheap...Learning a lot.
👍
China lifters
There mexico lifters.
Hard to believe somebody would spend a small fortune on a motorcycle to begin with and then shell out At least $5000.00 parts and labor to run heads up with a 300 cc. Honda !
I’m doing the 131 crate from 107, having them put on oil cooler with fan, 11 plate screamin Eagle clutch, and 1275N heavy duty clutch springs, plus I’ll have D&D Billet Cat with a big Bore Baffles 2-1, HPi 62mm A/C, Screamin Eagle pro tuner, put 500 miles on it and they will check it out and then do a dyno tune.
Cams are 512 or 517?
Wish they did 6.2 or 6.4 or 7.1 for injectors, be it doing the 131 for 131 or doing the 131 kit on the 107 for 128 6.2-7.1 injectors would make that 64mm TB throttle body work the kit combo to its potential.
Then do either an S&S 475 or 550 Cams