Say what you want but i'm just looking for advice... I pulled the 4g63 out of my murdered Evo the other day and i intend on breaking it down and completely rebuilding it with the dual intention of learning as much as i possibly can about the infamous 4g63 and building an extremely powerful, solid, reliable engine.

My intentions are to build low 11/ high 10 second car that car still be autoxed. And i will eventually do suspension upgrades but for now i am concentrating on the engine. I still have about $10k from suing the drunk that killed my evo and almost killed me, so i thought what better way to honor her than by throwing the money back at the engine. Irresponsible, yes but i am young and you only live once. I bought the wrecked car from the insurance company and i am in the process of parting it out so i will have extra $$$ on top of the $10K.

Any way i plan i selling my STi (hold your applause) and buying the IX MR to throw the engine in. I'm swapping engines rather than just upgrading the MR's engine because the MIVEC is new to the 4g63 so i'd rather go with the tried and true non variable valve timing. And more for piece of mind, i'll still have a stock engine if i blow the built engine (i have no intention of doing this obviously).

Any way back to the subject and title of this thread: I have been looking into 2.2L and 2.3L stroker kits. I am seeing respectable tuners using either output. I can't seem to find any reason why one is better than the other, other than the obvious reason that the 2.3L is higher displacement and therefore a potential for more torque and better spool up. But there must be a reason why so many other tuners are using the 2.2L set up. Higher rev limit or better torque curve perhaps? I havent seen any good threads on this subject or the like. Any way really why i made this thread is to get some thoughts, ideas, and opinions on stroker kits and high performance parts.

Any experience and opinions would be greatly appreciated. I'd like to make this an on going thread as i build my engine through the long winter. I have a decent amount of automotive knowledge and experience plus i am armed with the factory manual but i am not afraid to ask questions or recieve some constructive criticism. So flame away or just give me your $0.02. Thanks in advance!

Sorry for not spacing before i got on a roll and just kept typing.

 

Most of the stroker kits you see on the market (2.3's) are using the crank out of a 4G64 motor. The stroke is 100mm compared to the stroke on a 4G63 which is 88mm. IMO, the best opition would be to have Crower custom make you a crank with the stroke you want, but this get's expensive and isn't for everybody as the crank alone costs as much by itself as a complete stroker kit from a shop would cost (parts alone).

 

I think a 2.2L would be ideal in terms of spool/torque along with a high redline. If I had the money and opprotunity, I would do a fully built 2.2L with GT35R!

 

Please space out your paragraphs like I did above. Trying to read that huge paragraph just gave me a headache.

You can't go wrong with either stroker kit. You will see very close to the same results with both. With the higher displacement 2.3 the problem with going bigger and bigger is you need to keep the rpms down to protect from damaging the engine and further extending the life of the engine. Revving a stroked engine too high will severly deteriorate the life of the engine.

Just remember when you stroke the engine to keep the rpms at a respectable redline. Don't go overboard with it. You're making more power and torque than if you would've stayed with the smaller displacement.

 

The 4g64 is the es lancer motor correct? I could probably get it knife edged, cryo treated, and shot peened for cheap. Thanks man. Who has connecting rod experience? I am reading different things from different manufacturers, just a bunch of mud slinging about whose is better. anyone have any personal experience? i'm thinking toda cam gears and cams. Anyone say otherwise or recommend a good lift and valve/spring combo. i just bought arp head studs and new gaskets all around. but i just thought after i bought them don't most stroker kits come with them?? yeah i have a lot of questions...

 

Why not just buy a Buschur Racing stroker short block - that is what I did - he already did all the research over the past 15 years.

 

Most of the answers to the questions you have can be found by doing a search. There is a search button towards the top of the screen in yellow. It sounds like you have a little time on your hands until the IX comes out so do your research. Hope the search button helps.

 

That is definatley an option and a good one at that, but his question is what is the difference between them. Some people might want something a little different than the 4G64's 100mm crank.

 

I have done a ton of research on this myself.

If you are going to keep this as a daily driver and Auto X car, I would recommend the 2.3 stroker. My reasons for this recommendation is that you can run a larger than stock turbo & use the extra displacement for faster spool up and gain the extra torque in the lower rpms.

The 2.2 from Jun is significantly more expensive than the 2.3 kit and you aren't really gaining as much other than a higher rpm limit. The thing is you don't build strokers to rev the past 7,500rpms anyways, so you might as well get a much displacement as possible to get as much torque as possible. This will help you power through the corners in the lower rpms on a Auto X track

I would also recommend getting the head work done as well. All this extra air, won't help if you can't get it to flow better.

 

+1

 

Thanks guys i'm looking at it right now.

 

It's not quite going to be a daily driver. The only place i definitely won't drive it to is work. chicago rush hour traffic sucks!

I'd rather keep the rev limits on the low side to keep the engine from grenading. I guess i just need to decide which i want to do more, autox or drag. thats a tough one!

 

Such as 3 angle valve job and port polish?! Anything else?

 

Eagle makes an off the shelf rod for the 4g64 crank for use in the 4g63 motor. we use them in our kit. and CP has pistons that are off the shelf for the crank and rods. no need to have someone make you a stroker crank just use the 64 with the two off the shelf part numbers and you too can have the same kit Butcher, AMS and a few others sell.

 

If you do a 2.3, go with the mitsu 4G64 crank, manley or crower rods, and wiesco pistons. That bottomend can take alot.