ek_si808

I see..... Any other suggestions?

ek_si808

Any besides cams?

MiraiZ

Mid compression is like 9.5-10. 11.3 is REALLY high especially for a turbo. You're really asking for trouble at that kind of compression. One tank of bad gas, accidental boost spike caused by a leaky vacuum line, or a untuned cell on the fuel/ign map etc, and you're done.

The only way I would run that set up if I knew I had access to quality 100+ octane fuel regularly and if my car was track only. There is no way I would DD that setup.

ek_si808

I thought this would have been mid compression since you can go all the way up to 13s.

These kinds of set-ups have been done before. It's all over, so why can't mines be done when there's set-ups at 11.5 or 12.5? Some and most on pump...

ek_si808

Ive taken the extra precautions and upgraded fuel systems.... What else do I need besides E85 and race? I'm not trying to up the boost that crazy.

Oh, and those wanting to know which kit and turbo, here's te links!!

Kit:
http://www.go-autoworks-store.com/gostkitx.html

Turbo specs:
http://www.bullseyepower.com/S200.asp

civickiller

ive saw stock type r turbo before here on BI

ek_si808

Yeah get couple here too. Get choke k20 and s2ks here boosted to on stock internals... But ah, I'm just gonna do it. No doubt in my mind that it can't be done.

I'll post back in 2 weeks since my kit should arrive here this coming Friday!

MiraiZ

Um...you really need to do some more research on this...do a google search on "pre-ignition" or "detonation". 11-13:1 cr on pump gas is really unrealistic and impractical for DD. Like I said earlier, I would only do that type of setup if I had regular access to 100-105+ octane fuel and only if I could rebuild and tune my own engine. Otherwise, I would almost bet money that you or your tuner will blow that engine on the dyno. It only takes one small error or one bad fill up to cause enough detonation to blow the head gasket or rings.

BTW 11-13:1 is usually done on NA engines where high compression = high power. On FI cars, high compression is really not necessary because the compressor compresses the AF mixture.

MiraiZ

Are you on stock sleeves too?

ek_si808

Like I've said, I've done my research.. I'm here for suggestion. There's a bunch of stock k20s, s2k, and itrs boosting.

Sleeves are only if your going 500+
Just like fuel rails and allergy other crap..

MiraiZ

Ok...its your car...I have experience in this area and I've been there and done it....good luck with your setup, but I think you'll be back with a blown engine...you have been served!

ek_si808

I'll pay the price if it does blow. But from what I read it will work! Even the tuners on the island said theyve done high comp gsr turbos...

ek_si808

Probably shitty tuners.... Just saying.. Or shitty builds... IMO.

MiraiZ

Like I said, it takes VERY little blow that setup...it could have been anything for me...same applies to you...especially if you're using pump gas...

ek_si808

True.. I'll take everything into consideration.. But I'm pretty sure this set up will work.. But thanks for the warning!

Then why havent s2ks, itrs, and k20s blown yet? Just curious? Is it because it's more suited stock?

MiraiZ

Are you kidding me?? There have been PLENTY of blow engines on this forum (b-series, k-series, f-series, and d-series). I really do think you need to search again a find out why they blew.

Turbo RSX blowing up at the track
http://www.youtube.com/watch?v=rh6m36ClZIs

Turbo K20 civic blows up on dyno
http://www.youtube.com/watch?v=U9jiy0SNVug

A guy who blew his s2000; decided to rebuild with lower comp. pistons
http://www.s2ki.com/s2000/topic/8708...nsight-please/

just examples....again its all up to you....

h22apwrd95

iTrader: (1)

Pretty sure that K20 in a Civic was on purpose. And if he has access to E85 and tunes on that, that would be the way I would go with a higher compression bottom end and some decent boost. Plenty of safety there, as E85 has some great detonation resistance properties, as well as being very nice to stock sleeves.

ek_si808

We have a k20 on the island with stock internals pushing 500+... Wait actually we got 2 on stock internals running gt35.. Using a mix of race and pump gas. So how are you gonna tell me it can't be done? It is all in the tune.

Oh and one of the k20s is looking to push 700..

I wish Hawaii had access to e85:/

ek_si808

Maybe those blew because of poor builds. There's a lot of factors but shot blows with poor installation and knowledge. Just throwing **** at their motor.. IMO!

ek_si808

Oh and that civic on the dyno blew on purpose! Did you even watch it or your just posting abunch of waste?

civickiller

as oahu doesnt have a track, did you plan on racing it or more DD? isnt there one gas station in oahu that pumps 100 or something above 92?

meth injection sounds like a good option to prevent detenation
might be harder to find an e85 importer as no race track in oahu ask around. BI does have someone that brings in e85 here, if your interested lmk i can ask him if he can or if he knows someone

meth sounds like the cheapest option

ek_si808

I plan I daily driving the car and going out once in a while on the cruises. Not to sure if there is station that pumps 100+.. I can check.

Yeah lmk if you can find out!

Yeah was reading and watching videos of meth injection. It does spoons easy especially that you can just buy some at Walmart, and thy it only kicks in t a certain psi... But I'll talk to my tuner if I should or shouldn't.. Thanks man!

racebum

this is probably going to bring back bad memories for you

http://youtu.be/820SrMonVo0

MiraiZ

@Racebum

Sorry for making an example out of you, but seeing that we've both experienced a blown engine because we used high comp. pistons, I think its only fair to tag your thread as a "this could happen to you" thread:


@ek_si808

Just some food for thought:
https://honda-tech.com/forums/forced-induction-16/racebums-build-thread-300whp-itr-3023670/

"good" tuners make mistakes too, and all I am saying is that these pistons won't give you too much of a margin for error.

racebum

oh i totally agree, that's why i posted that blowing up dyno of mine. have to LOL about it a little, just a mistake made and lesson learned. probably going to buy 81.25mm usdm itr OE honda pistons only because i'm staying NA and won't have a mandatory retune, bore and rebuild this summer. till then i just drive it to the grocery store here and there. trying to keep the miles down so i don't coat the exhaust valves in oil and burn one