Hey Subaru owners, here is a Video where the Poster breaks down a
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@americanworkmule posted:Hey Subaru owners, here is a Video where the Poster breaks down a EJ253 giving an amazing amount of information, quickly delivered, with excellent editing.
No waste of time , no Mickey Mouse!
https://youtu.be/bJSYDBjkJNQ
Another interesting thing about Soob engines is the interchangeability of parts between different engine types. Note that a 2.5 litre Soob engine will not fit between the rear frame rails of an older pan based IM or Vintage. A 2.2 litre Soob will just fit with about 1/2" to spare on each side. For that reason when I converted to my final Soob install on my older IM, I built a "Frankenmotor" , which is a 2.5 litre block with 2.2 litre heads attached. Special head gaskets are made for that combination. Not wanting to go thru the learning curve of electronic FI, I simply installed a Weber 2bbl carb on the center of the intake manifold and again to keep things within my abilities I used a Ford Escort electronic ignition system. Certainly I was not gaining all the power possible but it was within my current level of knowledge. I finally had Geno Boyd build me up a heavier duty transmission with a 3:44 final ratio and put quite a few miles on that rig.
@David Stroud IM Roadster D posted:Another interesting thing about Soob engines is the interchangeability of parts between different engine types. Note that a 2.5 litre Soob engine will not fit between the rear frame rails of an older pan based IM or Vintage. A 2.2 litre Soob will just fit with about 1/2" to spare on each side. For that reason when I converted to my final Soob install on my older IM, I built a "Frankenmotor" , which is a 2.5 litre block with 2.2 litre heads attached. Special head gaskets are made for that combination. Not wanting to go thru the learning curve of electronic FI, I simply installed a Weber 2bbl carb on the center of the intake manifold and again to keep things within my abilities I used a Ford Escort electronic ignition system. Certainly I was not gaining all the power possible but it was within my current level of knowledge. I finally had Geno Boyd build me up a heavier duty transmission with a 3:44 final ratio and put quite a few miles on that rig.
I admire your ingenuity!
Is that a Subaru or VW transmission?
Thx
Dave
I didn't know Vince was helping you with the engine...
What is a good “bulletproof”. 120hp range motor using stock parts ?
and what quiet exhaust are you using to keep it in the engine bay and not hanging out the back.
the buzz I hear is the 2110 is the sweet spot for these engines (Type 1) wrt performance vs. sturdy/reliable. The issue is there is a lot to choose from aside from just displacement. It gets complicated real fast. Cams, lifters, carbs, ignition. And there are many well informed opinions on this topic expressed here. Or . . . you could have a Subie ...
@imperial posted:What is a good “bulletproof”. 120hp range motor using stock parts ?
and what quiet exhaust are you using to keep it in the engine bay and not hanging out the back.
You'll NEVER see 120 hp using stock parts. EVER.
A 2110(82 stroke by 90.5 cylinders) is a good compromise.
I really like the 2165(78 x 94) that I have, but it isn't cheap.
The cheapest way to get power is to bore the case for 94mm(or thick-wall 92) cylinders.
Stock stroke of 69 x 94 will net you 1915cc. Up the stroke to 76(no internal case clearancing) with 94mm cylinders and you get 2109cc. Of course you'll want a counterweighted crank(stock is NOT counterweighted).
Now, that's just displacement. Now you have to make that extra displacement breathe and flow to make power. Suck, squeeze, bang, blow, and repeat.
We haven't really even started: rods, bearings, cam, lifters, rockers, heads, compression ratio, exhaust, distributor/ignition, intake, and carbs. This stuff ALL matters, and should be chosen together to make a package that works well together. It isn't easy, or cheap.
Once you get it all working the way it should, then you need to keep it cool with good airflow and oil cooling.
Scroll down this page a little and there is a neat little engine size chart for you.
@americanworkmule posted:I admire your ingenuity!
Is that a Subaru or VW transmission?
Thx
David's Soob Speedster had a VW 4 speed trans.
@imperial posted:What is a good “bulletproof”. 120hp range motor using stock parts ?
and what quiet exhaust are you using to keep it in the engine bay and not hanging out the back.
Any stock Subaru engine in the EJ family will get you 120 or more HP. In a Speedster or Spyder you'll need to make an exhaust to fit, which isn't that hard. I have a stock EJ22 in an MGTD kit and it makes about 135 HP.
As Danny said, "stock" Type 1 VW engines don't develop 120 horsepower, though any well-made 1776-2110 cc variant could get there—or better—depending on cam, heads (Panchitos) and intake.
CB Performance advertises a 1915 engine package with that power. Balanced as suggested it's $5200 plus shipping, assembly required.
I have something similar in my Spyder. It works good.