2.3 Questions

[Halon]

OK well I thought I'd start a thread on this instead of stealing the other thread on 2.4's to ask this stuff. Anyway I gotta 91 tsi awd. Once I get back from Japan, I plan on rebuilding the engine on the talon. I was going to just do a 95 piston/1g rod rebuild. But I thought hey maybe while its out, maybe i could just do a stroker, maybe help spool up a little bit. So I researched this stuff for about a week now and am interested in the 2.3L setup. I know what all I'll need. But I still have a couple questions. I've heard from people that a 2.3L has worse rod angles. And yes it seems it has worse angles then a normal 4g63 would, but I've read many posts saying it has the exact same rod angles as a 4g64. So wouldn't that kinda negate that whole thing as a reason to not do it? If they run that rod angle stock on the 4g64, then I would think that it'd be a safe rod angle to run personally. Also I've heard you have to grind away a little bit in the block so that you don't have your rods hitting the block. Could anyone explain to me, or maybe show a picture of what exactly one would have to grind off, and how much. Or is this possibly something I could just have the machine shop that bores out my block do? Also some say that you might have the shave a little off the ends of the crank. Could someone expand on exactly why this is, and again, what exactly is needed to be shaven. And also, could this again be something I could just have the machine shop do or maybe even have a shop like QPR or Elite or someone do since they are more in touch with DSM specific stuff then a machine shop would be. Last quick question is if anyone has any experience with SCAT rods. I've been lookin at rods and was going to get Eagles. But I ran across SCAT rods for sale by Slowboy. Says they are pretty much the same as Eagles, capable of 600+ HP. Anyother input is appreciated, but if you don't know what you're talking about, please don't just post some hate reply saying 2.3's blow ass. If you do say 2.3's suck, please explain your reasoning because I wanna know as much as possible before I decide on something. It'll either be this stroker method, or just rebuilding it as a 2.0 with 1g rods and 2g pistons. Those are my options i think. Thanks

[Jakey]

In no way do I have experience with Scat rods but have seen them for sale on Slowboy's site and also noticed this thread which mentions them a few times: http://www.dsmtuners.com/forums/showthread...&highlight=Scat

[Halon]

Thanx, i'd still like to know more about em. But after reading that, I might be tempted to use em.

[Super Bleeder!!]

well i can tell you what i do know. domestic guys love SCAT rods, i have no idea how well their mitsu models perform but i imagine they would suffice.

4g64s and stroked 4g63s do not have the same rod ratio (or angle as you call it) and that is due to the fact that the 4g64 has a taller deck than the 4g63 (6-7mm i believe) such a rod ratio should allow increased revs and decreased side loads, but i'm sure you read all about that

i think 2.3s are fine, people complain about the rod ratios and such but there are 383 V8s and the like out there that have much worse ratios and still run forever. the engine is not a revver, and for a street motor i think that is totally fine as i'd rather have a semi-usuable powerband in the first place.

notching the block is definetly something i would not attempt on my own, leave that to the machine shop.

also, someplace online sells an entire 2.3 kit including crank, rods, pistons, etc. for like $990. the crank is remanufactured though, and a lot of people have found them to be out of usable spec so if you do go that route check it out with a micrometer or just buy a new crank.

[Halon]

yes i have found that place. They now sell the kit for 1099 though. Its http://www.carshopinc.com/product_info.php...de4f3f87328b6d7 if anyone else wanted to know. I've also pieced together my own kit for around 950 bux by looking around other sites. And for that 950 you'd get new crank thrust bearings which you wouldn't get in the 1099 kit. But I have read that the 4g64 rods are the same as the 4g63 rods. Please tell me if im wrong here. But they said since you are using the same crank, and the same rods, you're rod ratio will be the same as a 4g64. The difference is the pistons. And yes its a 6mm higher deck on the 4g64 which is why the custom pistons you need have a pin hole 6mm higher then the normal dsm piston would. But i read that since its the same rods and the same crank as used in a 4g64, that the rod ratio is the same for the both of them. I really don't feel like bringing up the links, but I basically have gone to dsmtuners, dsmtalk, rmdsm, and sddsm and searched "2.3 stroker" and this is where I'm getting all my info from. So I'm still stuck on whether to believe the rod ratios are the same or different. Also I don't know if anyone knows Scot Gray from San Diego. But he is currently running the 2.3 setup and he used the kit from that site and supposidly is very happy with it. One of my good Diego friends Sean knows him and told me this. And I guess it's kinda comforting in a way knowing that another well known dsmer went this route and is happy with his results. Also I believe Buschur has been building 2.3's for quite some time with good results. Matter of fact, I think I'll hit up his site and ask him about the whole rod ratio thing. Anyway thank you guys so far for the responces.

[IndiEP]

2.3's blow ass. :stick:

Heres notching;

[x1genx]

seriously austin, when you gonna have that thing runnin?

[Halon]

When I get home cuz he don't know how to do jack sh!t. j/k man. thanx for the picture

[IndiEP]

Originally posted by x1genx@Jul 15 2004, 02:34 AM
seriously austin, when you gonna have that thing runnin?

Eric?

It should be done in two weeks tops...or possibly 10 months, two weeks...when Brandon comes back. :whipped:

[Halon]

haha, ya, once you're car is up, then your turn to help me with my project. Whatcha say? Also, i went on Buschur's site and there wasn't jack about 2.3's in his forums so oh well. If anyone has anything to add, then please do so, otherwise I think for the most part I'm pretty schooled up on what I gotta do.

one question... WHY?? it is so much more work to setup a 2.3L and more room for error. Maybe a destroked 2.4L (4g64 with 2.0L crank) or how bout you just throw a 6bolt bored over with some good fuel tuning and a HUGE turbo. Simple = Reliable

-Tim