Well im still cant make up my mind,But in the meantime i still need a core.instead of paying the core charge that some of them shops are asking. Did i mention i've never even ridden in an evo!!! So when im done, it should be surprising!!! thanks guys

 

Yep, Buschur motor.

 

If you change your driving style, a Buschur 2.0L won't be hard to drive with a big turbo... even at 5k full spool, its still easy to drive before that. Consider like a stock civic at vacuum. =]

Buschur recently reduced their core charge on their built motors and have become even more affordable now... not to mention Shepherd also uses the Buschur shortblock.

Also, there's a good reason why most performance shops and all the fastest Evo's in the US use a 2.0L instead of the 2.3L. =]

 

+1 that's basically what I said in the beginning

 

between the 2.0 and 2.3 built motor which one is more reliable?

 

One thing I think nobody has mentioned is with a stroker it has a lot to do with matching the turbo to the displacement. Somebody mentioned how with a larger turbo , lets say its a gt40 or even 42r yes a 2.0 would be a much better match because of the higher rpm ability, however on a turbo like a 30R or a 35R, where they spool much quicker, the top end of the rev range remanins the same 8500 rpm or so, but the spool is more like 33-4200rpms, with a lot more torque all the way over, which is a LOT quicker on certain types of road, however a bigger turbo that has an engine that can rev higher will almost always win in a straight line. Imagine a cosworth head on a stroker engine, or a slightly destroked 2.4 liter with a built head, where you can have your 300 or so rpm quicker spool and rev to about 9500rpms(Im assuming thats what you would gain with only a slighty larger than stock displacement stroker), that will be the day....

Scorke

 

Just so everybody knows: the 2.0 uses a 88mm crank and and 4g64 uses a 100mm crank. The 4g63 stroker uses the 4g64 crank (100mm) and a stock bore piston. If you really wanted you can bore a 4g63 out to make it a 2.4 by using the 100mm crank you can do it. The 4g63 and 4g64 blocks are the same, the only difference is the 6mm deck height. The 4g64 uses a longer rod b/c of the increased deck height whereas a 4g63 that is using the 100mm crank the piston has a lower compression height to make up for the 6mm shorter deck height.

 

If you build your motor, IMHO at least do the turbo kit and clutch too. Clutch and turbo are removed/reinstalled anyway so you should save a lot of money on separate installation costs you'd pay later.

 

wats the highest rpm u can go if u got the 2.3L stroker motor and Cosworth Head.

 

The cosworth head is rated to 9500 rpm. it is advisible on the 2.3 to keep the rpm shift point at 7500 or below due to piston speed.

 

I'm leaning towards the 2.0L built block with headwork, AMS's intake manifold and a GT37R

 

I wouldn't recommend a piston speed greater than 25 m/sec for any engine where longevity is a concern. I especially wouldn't even recommend that figure with the EVO's stock cast pistons.

That works out to ~8500rpm for a 2.0L, and ~7500 for a 2.3L stroker.

 

I have all the parts now to build out the new stroker but now I am thinking of going with the 2.0 again. I am going to use the BR GT35r kit for sure. I have Dave's head so if I just go with his shortblock I know I will have a 9000+ rpm redline and so far everything I have been able to figure a 2.0 at high rpm will make more power for longer then a stroker.

 

do you have pics of the BR head?

 

Personally for me i like torque and i like it fast i don't want to have to wait all day for it or rev the motor to eleventybillion. If i liked that, i would have kept my S2000. The 2.3 is going to give you the power sooner which is important to me. Personally id go w/ the 37R turbo setup, but again, i am a power *****.