Technotoytuning lightweight pulleys vs. stock pulleys - bike carb conversion (itbs) part 4
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- เผยแพร่เมื่อ 3 ธ.ค. 2017
- Technotyotuning water pump pulley: technotoytuning.com/toyota/16...
Technotyotuning alternator pulley: technotoytuning.com/toyota/16...
Technotyotuning trigger wheel: technotoytuning.com/toyota/16...
Technotyotuning crankshaft pulley: technotoytuning.com/toyota/16...
Technotyotuning trigger wheel front mount adapter: technotoytuning.com/toyota/16...
After I saw the technotoytuning firsthand crankshaft pulley I could not resist getting the other two 4age lightweight aluminum pulleys that t3 makes, and those are the lightweight water pump pulley and the lightweight alternator pulley.
As you can see in the video they are also in a very fancy anodized blue and look awesome. In this video I also do a detailed weight comparison of lightweight pulley vs. stock, where, together with the crankshaft pulley my new technotoytuning water pump and alternator pulleys will make it possible for me to shave almost a kilo (973) grams from my engine's rotational mass, which is definitely a significant amount. Almost as much weight reduction as with a blacktop 20v 4age lightweight flywheel. If you opt not to go with bike carbs then you do not need a trigger wheel and you can save just under 1.4 kg which is just as much as with a 4age 20v blacktop flywheel. Which is amazing when you take into account that we are just talking about a bunch of pulleys here.
In this video I also talk about the possibility of lightweight aluminum crankshaft pulleys to damage your engine. As you can hear in more details in the video, the 4age crankshaft pulley is not a harmonics balancer, but a harmonics damper. It dampens harmonics with a 30 year old piece of rubber. The dampening effect is of course pretty much gone after 30 years, so a high quality balanced lightweight pulley is a much better bet, which is why many people claim their engines run smoother after installing a high quality lightweight crankshaft pulley.
Check out my blog for more: www.driving4answers.com/
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#d4a #technotoytuning #lightweightpulleys #crankshaftpulley #billet - ยานยนต์และพาหนะ
Great topic, exlpanation,and presentation. Thanks for sharing!
I have commented before on how informative and professionally presented your youtube videos are, so it is unfortunate but necessary that I respectful disagree with your opinion on eliminating the 4AG's crank dampened. In the USA we have been racing a single seat tube frame sports racer that uses the 86/87 AW11 16V engine (balanced stock crank) and stock trans in professional and vintage racing since the mid 1990's. The engine with either dual Webers or ITB FI produces only about 170 Hp at the flywheel, so it is nearly stock with the exception of cams. When fields of 40 plus cars ran in the professional single mark spec series many drivers got it in their head that running with out a dampener would give them some incremental performance advantage. Engine after engine suffered bearing failure (often requiring crank replacement). The engines running a dampener would go a season or two without refreshing the bottom end. And even then it was only done as good practice- not because it really needed it. These are not high reving engines. They use the stock shim over bucket valve train and run out of torque and hp by 7500 rpm. Even stock clutches were used. There is a reason so many companies produce after market crank dampeners for the 4AGE and its variants! They absolutely need it. I have first hand knowledge of the folly associated with removing the dampener. All I can say is - it's been tried...
Cool story bro.
I did not expect to find a video from you lost to time. More people need to see this!
Thanks for the clear and concise information. Your always an interesting channel to watch and you have helped me with this decision.
I cant wait to see the motor running! It will sound and feel amazing I bet :)
rezz4prez I hope so. I plan to start engine assembly this month :)
I know it is kinda randomly asking but does anybody know of a good website to stream newly released movies online ?
@Drake Kason Ehh I would suggest flixportal. just google after it:P -thatcher
@Thatcher Keaton thanks, I signed up and it seems to work :D Appreciate it !
@Drake Kason No problem =)
Oh my, i stumbled on this while im watching your recent videos. And oh my i would know you are a bosnian from the first second :D
I have a question on the aftermarket waterpump pulley. If it spins the water pump slower, won't it cause the car to overheat in long stand still traffic?
Thanks for clearing that up. I used to build Megasquirt ECUs and install them into mainly Hondas which have HORRIBLE distributors and VR sensor pickups. Mitsubishi CAS sensor assemblies can be machined to fit these in place , however they often fail and cost a lot to repair and are now hard to find parts, In this case the crank mounted trigger wheel is absolutely the best solution, using only one sensor it is a very clean way to set up wasted spark and removes the bulky distributor, leaving room to fit larger intake pipes or a water to air intercooler. Plus, it does not alter the sensor position when cam gear settings are changed.
I'd love to build my 1.6 mazda engine to rival your 4age. Subbed awesome content
Nice Video! Im running an aftermarket XTD chrome-moly flywheel, Technotoytuning crank pulley . I need to get the water-pump and alternator pulleys for my 88 MR2. Its limited too 7000 rpm it spins up quick and no waiting for the rpms to drop to shift.
Sounds like a really cool setup. That's exactly the kind of engine feel I'm after. How much does the XTD flywheel weigh when compared to stock?
The Stock one it about 15.3lbs (7.93kg) and the new XTD is 9.3 lbs(4.2kg). Upgrading flywheel will make the biggest difference in rpms. Note: Lighter flywheels have less harmonic damping effects this means you will feel the clutch a lot more "its more raw" because of that some people say that Aftermarket Flywheel should NOT be used on a "Daily Driver" but I like how it feels.
Do you still agree with your thoughts here? What are your opinions on ATI super damper or other dampers like fluid damper... Dampur? (I think Fluid Dampur is a brand)
Hey man whats your opinion on light weight pulley on subaru ej25 engine?
Higher speed would actually create cavitation problem. But it will pump more coolant at low rpm.
Now do you run your engine at high or low rpm.
What about the balance of the crankshaft?
Just to let you know on my silvertop with these set of wheels you need to remove the belt to see the timing marks with a timing light because the larger water pulley lefts the belt higher at the top of the crank pulley so you cant see the marks.
This is true! I just realized this the other day. Fortunately the AW11 uses a different timing mark to the corolla for example. It has a big spike on top of the idler pulley bolt so the problem is resolved. But I would definitely make new timing marks somewhere more visible for the corolla.
Where I can order pulleys from
Nice video, but as much as I understand, it is not just the mass but also distribution of that mass is what makes rotational inertia to be more or less significant. For each of these pulleys, stock and "toy one", you could calculate energy required to rotate it to some RPM so people could see what they are really getting. Then you could present that energy as engine power, and show clearly how much power your engine will send to your wheels instead to rotate some small pulleys. Usually it is not all that much if we look on just one pulley, but if you have many of them things tend to add up and you can end up with bit more responsive car. All in all it will not be breath taking, depends a lot on the car. On a light weight toy/race car it will be more noticeable then on a standard heavy street vehicle.
hi there, do you may have the link to torque specification for 4AGE engine?? it would be great if i can get a video or a page.
Google aw11 bgb
I agree with you on the engine being rev happy with the lw flywheel. My air cooled beetle rev's up faster and comes down faster. I'm in the States
Another question " why didn't the company you purchase the lightweight pulleys from offer a dampener / balancer ?
I don't know, that's a question for techno toy tuning, not me :)
Alternator pump?
Did these work with the stock oem v-belt? or did you need a larger one?
Curtis Williams Needed a slightly larger one.
Can the VW 1.4 twincharge engines use lightweight pulleys? Also what do you think of the fluidampr pulley? They are heavier but is said to give better power delivery across a wide rpm range
A pulley cannot give better power that's ridiculous. I don't know about vw 1.4 stuff, look at how much rubber dampening the stock pulley has and it will be a potential clue.
@@d4a I think you misread the comment. I didn't say it gives more power, I said better power delivery. Check out fluidampr pulleys, read up on their claims and tell us what you think.
So your saying your MR2 didn't come factory with a balancer pulley ?
No. A dampner and a balancer are two different things.
I have heard that for every pound you reduce in rotating mass you do not gain horsepower but you do free up a round 7 horsepower. So an additional 7 ponies is always welcome to me
I wish hahaha. Then you could get an extra 70hp just switching to an ultra lightweight flywheel. This stuff does improve the dynamics of the engine but it doesn't uncover extra power. The exact same amount of force coming out of the engine just takes a more direct route to the rest of the drivetrain.
GFB actually list the reason for not selling non-damped lightened pulleys for RB engines as longevity reasons during testing, i.e. harmonics, they sell them for VG and SR afaik without problems.
The inline six is subject to different harmonics compared to v6 or i4. There's a lot of torsion in the inline 6, so that might be part of the reason.
I have wedding in plans and engine rebuild in my peugeot, and you sir makes my desire to buy ae86 even stronger !
God dammit :p
Cancel the wedding and buy an ae86 or an aw11 :) Joking of course. But you could cheap out on the ring maybe. lol. I bought my AW11 just a few months before I get married and we started furnishing our home. I knew it had to be done then and there, otherwise it would be difficult to do it later with all the expenses coming in. One of the best decisions I ever made, and I am fortunate enough to have a better half that understands all of this car lunacy :)
Maybe a stupid question.. did you noticed any possitiv after u installet it? Better milage maybe???
Things like this can't measurably affect mileage
This must be from before your channel got huge
Any reason for going with carb?
Sound, throttle response, looks awesome, will get me like 3 hp. Maybe. Downsides? Not easy to tune, kinda fiddly, can't install and forget about it like fuel injection, mpg will decrease. But I don't care about the downsides, this is not my daily driver, I am willing to learn, and simply want to try out some bike carbs :) Google car engines on bike carbs, once you hear them you will know what I mean.
I just ordered mine! lets see if it makes a difference over the stock one!
Nick Pahls Congrats! I think they will look cool on your turbo beast :) let me know what you think about them once you get and install them. You will probably have them running before I do. :)
Thanks! ill keep you up to date. I'm going to install my LS2 coils tomorrow and get it running again hopefully before I get the T3 pulley lol
Do you need the adapter plate for a silvertop 20V?
Cody Mccarty I believe you do. But check with t3 to be 100% sure.
Ok thank you I'm planning on using it with a XDI electronic unit
I'm no engineer but the flywheel diameter is about double the crank pulley diameter so the angular momentum given equal weight would also be about double. By my calculations your performance gain would be about half of what your model predicts.
ps- I've considered this for my fb rx7 :)
dachanist You have an fb? Cool!
80 Japanese baby!
I would use a fluidampr personally but also on a 4age it would be better to get a lightweight one vs an oem one but also T3 is the only option for the ae86 anymore for the most parts atleast easily in the states, and some of what they sell specifically suspension related in literal trash. But in the specific case of a 4age where an alumin pulley might be the only option it's the correct on.
huh.. few pulleys and alot of $ imo. Still cant wait to see all runing :)
xDarhalx Good things rarely come cheap :). But the prices are fair imo. I imagine this engine running every day. Soon it will be reality :)
driving 4 answers respect for buying some quality man!
Boosted Fool Thanks man!
when you do under drive pulleys like that, you also are supposed to remove the thermostat, and run a restriction plate in its place which you tune by orifice size under full load or race conditions.
Some say it will fucup the end bearing...
You should look at Nst pulleys
I know about them. They make good products. Haven't owned or tested them, but I believe it's a similar approach as technotoytuning. Anodized, balanced, timing marks on the crank pulley, etc. It's the little details that differentiate a high quality product vs. junk that can harm your engine. I went with technotoytuning because their crank pulley offers a high quality and easy to install trigger wheel solution, which saved me a lot of time and headaches.
Their pulleys are awesome!!
@@Jruppertthgencivic you have one on your 10th gen? I ordered one for my Veloster. Hope it works lol
I cant wait to get t3 pulleys for my 4age
Hachi-Roku Performance Group Which ones are you getting? Got AC? Which color? Just curious lol :)
Im thinking gold or polished and i want alternator, water pump and single row crank as i dont have ac or power steering
Hachi-Roku Performance Group Ooh gold looks amazing on a clean engine. So basically same as mine just a different color. Share a few pics when you get and install them, I would love to see.
driving 4 answers i will. Should be very noticeable as the 8.5 lbs flywheel is a big difference from the stock. Looking forward to your next upload
"Kitchen scale"🤣 put a nickel on it it should read .5.🤙
biggest prob of cavitation is how destructive it is when the bubble collapses.
my big concern would be the balancing of the crank pulley and dampening
Nice, but your comparison to the benefits of your pulleys relative to the two different flywheels is flawed. A flywheel has much greater angular momentum and moments of inertia than the sum of all of your pulleys combined; you cannot just compare the sum of the weights and infer ithe lighter weight pulleys provide similar benefits to a lighter weight flywheel (which is still likely marginal on a street driven car). Look it up; the rotational speed and, the distance of the mass from the center of the pulley makes a large difference. Think of an ice skater spinning; angular momemtum is conserved, so as a skater pulls their body closer to the axis of rotation, they speed up considerably.
Enjoy the pulleys, but the benefits on engine performance are negligible, And yes, you are correct that the 4AGE carankshaft pulley is a harmonic dampener, not a balancer.
Looking at the photos of the two flywheels you can see the starter ring gear on the lighter flywheel, you can't see it on the heavier wheel as it's hidden by the extra mass on the outside of the flywheel therefore it seems most weight was removed from the outside therefore diameter is much more than crank etc pulleys as mentioned above.
+Rene Neron I get what you're saying. It's easier to roll a 100kg small diameter cylinder than a 100kg large diameter cylinder. But that doesn't make the weight factor negligible. I drove the engine with all stock pulleys and I will drive it with the lightweight ones. I will be sure to give some honest feedback.
@@d4a but you have done other mods to the engine so you won't be able to attribute the lightweight pulleys to the increased performance
@@thaton3guy100 there are other videos attributing some "hp" to these mods. Its less actual hp and more reducing stress on the crank and reducing the amount of time needed to start its next revolution. Thats also true in reverse, allowing the crank to slow down more quickly. When it comes to driving circumstance, daily driving would benefit more from these changes seeing as you are accelerating and decelerating constantly. When racing you are either wot, or slamming the brakes. In those moments the %10-%20 increased rev response isnt noticeable. But i dont have science to back this up, just that its been a mod people have been doing for a long time and it has withought a doubt produced results in most cases.
@@popanda3652 sure but we are talking ounces here. He could take a shit and then go for a drive and he would get more "hp" from weight reduction
Large pully means less air in the coolant = less heat at high constant rpm how ever it also means less cooling efficacy at lower rpm like sitting in traffic spending on how far you take this cars can start to get heat soak and over heat on the street
This is the second video explaining the install of crankshaft pulley but both mentioned Toyota only.
Hi,
Lovely engine!
I rarely comment on TH-cam but about all you said about crank pulley , you need some enlightment and as a car/engine enthousiast, I can not leave you in the dark, with all my friendlyness :)
1st
You absolutly CAN NOT compare weight gain made on a flywheel to the one gained on a crank pulley, for the simple reason that the weight or part of the weight gain are not at the same distance from the center of rotation.
It's not a small detail as the inertial effet of a mass is the distance from the rotation center at the 4th power (4th power!!!)
2nd
about crankshaft balancer/damper
You always makes reference to engine component balancing and yes it's important to have a well balanced engine but it's completly not the subject of crank damper pulley ;)
The reason why there is absorbing device or balancing device in the nose of crankshaft, for 4 cylinders , 6 , 8 etc.. is to dissipate part of or most of TORSIONAL VIBRATION with the ultimate aim to absolutly avoid TORSIONAL RESONANCE which result in crankshaft failure.
The torsional behaviour of a crankshaft is function of the crank design (stroke, Main end & rod end overlapping, etc....) the metalurgy of the crankshaft (cast, forged, alloys used etc....) and the amplitude and frequency of the exitation which will induce vibration.
The exitation come from combustion, the amplitude is the "power" of the combustion, the frequency the revs by the number of cylinder and the type of the cycle the engine use.
Short stroke crank with light weight rods and pistons are less prone to problematic crank torsional vibration (less lever to work the crank) but you will be surprised by how much engine absolutly need torsional absorbing device (Mazda BP engine, all V6, All V8, All L6 even with their perfect mechanical balancing, yes! ;) etc ...)
Why almost all modern engines? simple, weight reduction and packaging
To withstand the always higher combustion pressure, wide power band and respect package constrain and engine "good manner" (to make short) Crankshaft are made lighter, it's not a bad thing but you need to make thing smarter so consider every inputs ;)
If all I said bother you, take few minutes to figure out how a toffee/caramel made crankshaft would behave, the rod end will rotate back and forth around the main bearing, imagine that psh on the rod end a thousant time per minute or more, the crank will vibrate around it's axis that's what crank absorbing device are made to minimse (nothing related to balancing ,internal or external ...)
Keep the good work, pay attention to too easy solutions ....
For your Crank and bearings take a look at ATI or BHJ pulley ;)
Light weight crank pulley causes bearing failure
@@ariclawrence364 harmonics and vibrations are rough on the bearings
Externally balanced engines are balanced at the flywheel not the harmonic balancer. Harmonic balancers are for torsional and harmonic vibrations not balancing. And a harmonic balancer is also just another name for harmonic damper. On an internally balanced race motor no harmonic balancer is no big deal because you're not running sustained RPM's, but on a street driven motor you just have to pray your cruising RPM isn't the RPM your crank resonates at or it will drastically reduce the life of your crank. A harmonic damper/balancer needs to coincide with the power level so a stock harmonic balancer isn't very useful on a motor thats had cams installed or some other power adder. No you do not need a harmonic balancer/damper but your crank will be under a lot less stress if you did run one.
Harmonic balancer is not the same as a damper. Google it, takes less time than writing that comment.
Larger diameter water pump pulley is problematic unless you plan to always drive at high RPMs. You’ll overheat.
1) flat 4 or flat 6 or inline 4 DO NOT have harmonic balancer, harmonic balancer only exist on cross plane v8
2) the reason boxer engine was developed is because it doe not inherit vibrations like other type of engine
3) harmonic balancer was a “band aid” vibration fix for cross plane v8 in the early days because the crank’s too long and the engine balance Tolerance is just not there compare to Japanese cars..
4) don’t install light weight pulley on v6, in-line 6, flat plane v8, cross plane. V8.
5) you can run pulley on inline 4, flat 4, flat 6
3:05 nope. Some engines (sr20de for example) have problems with cavitation on high rpm, they have to change pulley to smaller to solve this problem.
wouldn’t a smaller diameter pulley make the water pump spin faster and cause more cavitation?
@@expertbv i mean "they have to change pulley"
Nissan stanza wp pulley
Aluminum crank pulleys are not good always go with a fluid damper.... reliability>looks your crank is constantly being put under alot of stress not smart to get rid of the part dampening the torsional vibrations
I just purchased a light weight crank pulley from NonStopTuning and the keyway was machined incorrectly (too narrow/ not enough depth). That was my sign not to use one.
6:30 useless calculation. 1kg wheel with 1m diameter at 1000rpm is much much more inertia than 1kg wheel with 10cm diameter at 1000rpm. Mass without another dimensions says nothing about total inertia.
What’s the deal with his eyebrow I can’t stop looking
Woah where’s your hair
he look like ellen degeneres
hahahhahaha
I love your videos, but this time I think you are ignoring the science and just plain wrong. Harmonic balancing of the crank is critical. Ignoring it is a fools errand.