I just gained several IQ points watching this. One very interesting detail is need to hold back on unshrouding the exhaust valve on the short side radius to not overwhelm the poorly flowing side of the port. This is where DV's extensive expertise shows. More is not always better.
😮 I had no idea! First with the 2.3 Lima, then suddenly (and FINALLY) I can actually visualize what de-shrouding does and looks like effectively. Thank you for helping me to finally see it in my head what is going on when folks talk about de-shrouding. Maybe I should have said "ViZualize" ha! Thanks again Mr. Vizard, another great video. Edit - my god those are gorgeous looking chambers after you polished them. You can literally see the time, effort, & expertise
I currently own 3 turbo Lima engines. I’m currently throwing a stock one into my Merkur but I may have to port out another one as I’m going to be doing all the machine work on one of those engines myself! Love the video
I ran the 2300 engine naturally aspirated in a pinto back in 1979 it was a good running car , i went to atco raceway with it and came home with the trophy just two of the cars i beat that day had big blocks in them a 440 roadrunner and a 55 chevy with open headers against my little 4 cylinder street car everyone thought I had a v8 in this car , they are a great little motor you just have to know what to do with them, I still keep all my tricks to myself with this one to this day
Brings back memory of DV's ford 2.0 engine tuning book❤!! They both have heads with that charm of having inclined (as opposed to pushrod heads) and shifted valves (as opposed to hemi chamber overhead cam heads). Love them
Thank you so much for this slew of knowledge and expert advice. These are very capable engines with the right “attention to detail”. It really would have been something special had ford actually spent the money on the R&D that others such as cosworth did. I believe that the SVOs and Thunderbirds were “held back” a ton. These little 4 bangers were already out performing the bigger sellers (ie mustang gt). Let’s also not forget that by achieving high horsepower figures and keeping the overall weight down due to less moving parts = all around track weapon. Especially when things like turbo lag are addressed simultaneously. Thank you again and please keep producing this great ford content!
I also wanted to add… I have seen a few individuals who have mated the 16v DOHC Volvo heads as well. How do these compare as far as flow characteristics? Obviously the twin cam design allows for both, better flow over all, and high RPM yields. But, is it the best route? Or is a meticulously well thought out LIMA single cam just as good? What I have yet to see is a Volvo head swapped LIMA that has had extensive valve and cam work done? Just curious as to how these stack up. I am going to be building my 88 TBird and have made the choice to attempt to build the wildest (streetable) 2.3 because of its originality and its simplicity.
Oh No!!! MY motor!! edit: I have an Esslinger aluminum D-port lima head if you ever wanted to "experiment" with it out of curiosity... I just need it back when done (and it needs to work still) 😁 Been a fan for a while! Thanks for this video especially!
Hey Mr.Vizard! I'd like a tee with that logo on it!! Very nice and thanks for the 4 cylinder tech!! That shrouding in those Lima heads were pretty bad!
Have you ever considered having one of your Lima heads with all your proprietary combustion chamber and intake/exhaust port work…fully scanned by a computer ?and be able to CNC the same shape to every head sent to you…save you some work and will provide the next generation of Lima tuners …a legacy of your Art
Wonderfull episode. Special because i still have this engine 2850CC one from Esslinger with all the go fast parts, also with SVO aluminium head Maybe another episode of headwork on a N/A driven engine
David I can only imagine what would happen if you tuned a brand new 2024 Harley-Davidson Low Rider S or ST. That new M8 engine would benefit from your experience and skills.
David on the transition of the semi plateau on exhaust i kinow you said the depth was going to be an issue is it because the plain leading up to the valve must be done within your scribed area i have your books and should do my home work and usually dont see much more than chinia v8 knockoffs which make an easy transition i will appreciate your or adams input ty
The Lima is interesting. It's built very, how should I say, agriculturally. It's more or less too dumb to die under most circumstances, and getting 1000hp out of one represents more than 10x what it would've ever made from factory. I think the later 2.5L variants eventually cracked the 100hp barrier /just/.
These engines have been used for decades already in 4 cyl dirt track cars. It's a stalwart that has been modified for race use since the day it was introduced for goodness sakes.
Always felt Ford US hated small cars. Start with the Cortina GT 1600cc Kent take it to 2000cc SOHC and ... less horsepower. Then with an example of a fair rally and autocross car deliver the Pinto. Seemed like the low performance and bad weight distribution with extra understeer built in was on the showroom to test drive and sell you a Mustang. What they considered their small starter car since you really should be driving off the lot in a LTD or a Lincoln Town Car. Always wondered... if the front axle was a bit more forward, the engine back just an inch, closer to corect geometry on suspension, and at least a portion of what the increased displacement should have delivered in horsepower. There would have been fewer Toyotas and Datsuns imported. Yes, probably fewer Mustangs sold, but many people wanted a smaller starter car so they either bought the Pinto anyway or just walked off the lot without buying the Mustang.
I thought the 2.3L Lima had 2 spark plugs per cylinder. I had a 2.3L in a 1993 Ranger and it had 2 plugs per cylinder and I always thought that was Lima motor.
As the other reply says, it was the earlier 2.0/2.3 heads called the Lima and ran points ignition on distributor. Until about the mid 80's when they developed the twin plug iron head, the "Duraspark" head. The Duraspark II head which runs a fully electronic distributorless ignition came to the (Ranger) 2.3 in (I beleive) 1988-89 and carried on through the 1993 body change until the 2.5 came along.
that quote 16, 4 Hp per Cubic Inch... One Cubic Inch would be 16,387 CC. And then 16,4 HP out of it? I either cannot calculate, or this is a mistake. 🤔
I just gained several IQ points watching this. One very interesting detail is need to hold back on unshrouding the exhaust valve on the short side radius to not overwhelm the poorly flowing side of the port. This is where DV's extensive expertise shows. More is not always better.
😮 I had no idea! First with the 2.3 Lima, then suddenly (and FINALLY) I can actually visualize what de-shrouding does and looks like effectively. Thank you for helping me to finally see it in my head what is going on when folks talk about de-shrouding. Maybe I should have said "ViZualize" ha! Thanks again Mr. Vizard, another great video.
Edit - my god those are gorgeous looking chambers after you polished them. You can literally see the time, effort, & expertise
Bo-port is in Carson City, NV. Bo has ported a bunch of these heads, has a stellar reputation in the Lima community, and stands by his work.
I’m in sparks man sweet🤙🏼
I currently own 3 turbo Lima engines. I’m currently throwing a stock one into my Merkur but I may have to port out another one as I’m going to be doing all the machine work on one of those engines myself! Love the video
I ran the 2300 engine naturally aspirated in a pinto back in 1979 it was a good running car , i went to atco raceway with it and came home with the trophy just two of the cars i beat that day had big blocks in them a 440 roadrunner and a 55 chevy with open headers against my little 4 cylinder street car everyone thought I had a v8 in this car , they are a great little motor you just have to know what to do with them, I still keep all my tricks to myself with this one to this day
hots off to the editor to keep David’s thoughts uninterrupted
Love your content DV thank you for all your hard work🎉
Excellent video David I liked seeing more of the roughing and process of porting. Eagerly awaiting a poly quad video on your eco boost mustang
Added to a patinaed 72 pinto ultimate sleeper. That car weighs like 1900 lb. Fun!!!!!!!
Brings back memory of DV's ford 2.0 engine tuning book❤!! They both have heads with that charm of having inclined (as opposed to pushrod heads) and shifted valves (as opposed to hemi chamber overhead cam heads). Love them
Thank you so much for this slew of knowledge and expert advice. These are very capable engines with the right “attention to detail”. It really would have been something special had ford actually spent the money on the R&D that others such as cosworth did. I believe that the SVOs and Thunderbirds were “held back” a ton. These little 4 bangers were already out performing the bigger sellers (ie mustang gt). Let’s also not forget that by achieving high horsepower figures and keeping the overall weight down due to less moving parts = all around track weapon. Especially when things like turbo lag are addressed simultaneously.
Thank you again and please keep producing this great ford content!
I also wanted to add…
I have seen a few individuals who have mated the 16v DOHC Volvo heads as well. How do these compare as far as flow characteristics? Obviously the twin cam design allows for both, better flow over all, and high RPM yields. But, is it the best route? Or is a meticulously well thought out LIMA single cam just as good? What I have yet to see is a Volvo head swapped LIMA that has had extensive valve and cam work done? Just curious as to how these stack up. I am going to be building my 88 TBird and have made the choice to attempt to build the wildest (streetable) 2.3 because of its originality and its simplicity.
Awesome to see all the chamber work and to here the whys. I mainly do diesel heads so no chambers to deal with.
I understand the majority of Ford Rangers came with the 2.3. I am expecting to turbo my Ranger for loads O fun... Thanks David
Oh No!!! MY motor!!
edit: I have an Esslinger aluminum D-port lima head if you ever wanted to "experiment" with it out of curiosity... I just need it back when done (and it needs to work still) 😁
Been a fan for a while! Thanks for this video especially!
Another excellent article
Hey Mr.Vizard! I'd like a tee with that logo on it!! Very nice and thanks for the 4 cylinder tech!! That shrouding in those Lima heads were pretty bad!
Yes, I see the advantage, thank you sir
Thank you so much for all your time putting these videos together!
David could get massive power out of a lawn mower !!! Thank you for all the voodoo that no one else will show you
Looks like a re-upload? Here's a like and a comment to help with the algorithm.
Thanks for sharing, all the best to you and your loved ones
Have you ever considered having one of your Lima heads with all your proprietary combustion chamber and intake/exhaust port work…fully scanned by a computer ?and be able to CNC the same shape to every head sent to you…save you some work and will provide the next generation of Lima tuners …a legacy of your Art
Thank you David very interesting and informal
Wonderfull episode. Special because i still have this engine 2850CC one from Esslinger with all the go fast parts, also with SVO aluminium head
Maybe another episode of headwork on a N/A driven engine
David I can only imagine what would happen if you tuned a brand new 2024 Harley-Davidson Low Rider S or ST. That new M8 engine would benefit from your experience and skills.
George Bryce is a wealth of knowledge on bikes.
Excellent!
Good job DV!
3:54 My nephew put a 67mm turbo on a 2.3 it made quite a bit of power. He was going to use the Volvo head
David on the transition of the semi plateau on exhaust i kinow you said the depth was going to be an issue is it because the plain leading up to the valve must be done within your scribed area i have your books and should do my home work and usually dont see much more than chinia v8 knockoffs which make an easy transition i will appreciate your or adams input ty
The Lima is interesting. It's built very, how should I say, agriculturally. It's more or less too dumb to die under most circumstances, and getting 1000hp out of one represents more than 10x what it would've ever made from factory. I think the later 2.5L variants eventually cracked the 100hp barrier /just/.
best
These engines have been used for decades already in 4 cyl dirt track cars. It's a stalwart that has been modified for race use since the day it was introduced for goodness sakes.
Matthew, I am fully aware of the point you make. If I gave you the impression things were otherwise my apologies.
Howdy Mr. Vizard! Please correct the link in the video description. The link is missing "Day" as in 14_Day_Trial. 🙂
Always felt Ford US hated small cars. Start with the Cortina GT 1600cc Kent take it to 2000cc SOHC and ... less horsepower. Then with an example of a fair rally and autocross car deliver the Pinto. Seemed like the low performance and bad weight distribution with extra understeer built in was on the showroom to test drive and sell you a Mustang. What they considered their small starter car since you really should be driving off the lot in a LTD or a Lincoln Town Car.
Always wondered... if the front axle was a bit more forward, the engine back just an inch, closer to corect geometry on suspension, and at least a portion of what the increased displacement should have delivered in horsepower. There would have been fewer Toyotas and Datsuns imported. Yes, probably fewer Mustangs sold, but many people wanted a smaller starter car so they either bought the Pinto anyway or just walked off the lot without buying the Mustang.
Would you do the inner ports first to get the flow and swirl numbers and only improve the outer to match?
Thanks DV! v/r wh
🔔😎🇺🇸
YeeeeHaaaaw!!!!
Stupid use of emojis
Would theae techniques work with a iron head?
HAve you worked with EFI.
David, have you ever seen Jim Fueling's BBC heads? Tiny valves and figure 8 chamber. What are your impressions? Are they real or a scam?
I thought the 2.3L Lima had 2 spark plugs per cylinder. I had a 2.3L in a 1993 Ranger and it had 2 plugs per cylinder and I always thought that was Lima motor.
The earlier ones had 1 per
As the other reply says, it was the earlier 2.0/2.3 heads called the Lima and ran points ignition on distributor. Until about the mid 80's when they developed the twin plug iron head, the "Duraspark" head. The Duraspark II head which runs a fully electronic distributorless ignition came to the (Ranger) 2.3 in (I beleive) 1988-89 and carried on through the 1993 body change until the 2.5 came along.
Cortina power
One question David, does the software also work for a cylinder head with 4 valves per cylinder?
Regards
Gregorio
Yes, it does. I believe it will also do 5 valve heads.
for 4 valves, he recomends, polyquad. good flow, and a lot better turbulent air makes better combustion and power
Still a 404 error, the correct link needs to have "Day_" added after the "14_" It needs to be "Flow_IOP_14_Day_Trial" 👈🏿
I tried your link, doesn't seem to work.
that quote 16, 4 Hp per Cubic Inch... One Cubic Inch would be 16,387 CC. And then 16,4 HP out of it? I either cannot calculate, or this is a mistake. 🤔
the motor (stock anyway) is 140 cubic inches / 2300cc
edit: oh I see what you mean... I don't quite know what he was talking about with that... lol
26:36 650HP per liter on what fuel?
i dont know but, he said will have water inyection
VP race fuel.
🥝✔️
To bad I wrecked my old Pinto . Had to put her down.😢
RIP my Merkur XR4Ti
😢😢
@@hotrodray6802 Way Cooler than Pintoad 😎😲
What about the porting on the 318? Have you forgotten about your daughter??
Them's fighting' words!!!!
Seriously, that should've been filtered out of your brain before you hit send.
Unreal!
You really should delete that comment.