imported_crx__4u2nv

OK i have a 88 crx and in it i have a 88 ZC. This engine runs pretty good considering i have nothing done to it. Now that i have most of my exterior and interior done to where I want it i have decided to build a ZC from bottom to top. I know your looking at this and going WTF or laughing but this is what i want to do for right now. Iam going to go with a turbo (i have a 14b right now) so teh big question is it better to bore your block or sleeve your block and also any input on my install will help me along.
Thanks Robbie

imported_weiRtech

what is your goal/purpose for the engine/car? don't do all the work if you aren't looking to make a substantial amount of power.

imported_crx__4u2nv

I want to get alot of power out of this engine i would like to say somewhere in the 220-250 hp. It is a summer daily driver plus show car

imported_weiRtech

i don't know a whole lot about zc engines, but i'm thinking you won't need to sleeve or bore to make those kinds of numbers- someone please correct me if i'm wrong.

if you need any help with any fab work (charge piping, downpipe, turbo manifold...) let me know.

LEITNER

you should be fine without sleeving the block if you keep the boost under 10psi and have a good tuner tune it. the biggest reason the sleeves crack is detonation, if you have a good tune it wont detonate.

imported_crx__4u2nv

I want to runhigher psi then 10 i would like to run 12 psi all the time and i want to be able to adjust it to like 20 psi when i want to take it to the track

zeeman

iTrader: (1)

if u wanna run that kind of psi i would at least get forged internals, sleeving wouldn't be a bad idea, but its very pricey.
Just so you know, the only way you can really bore these engines (more than like .5mm over safely) is to sleeve it. I mean some people go .040" over (which is 1mm) but for boost that would be a bad idea IMO.
Like steve said...tuning is KEY!!!

Mr. Death

LEITNER

12 and 20. sleeving is a must. i recommend GE. they wont overheat or sink but you will be sending it to california. but if you gonna use that much boost why use an old crapper ZC? your gonna spend alot of cash on an obsolete engine.

zeeman

iTrader: (1)

^^^^^hahahaha...thats exactly what i was thinking.

1sykcoupe

whats an 'obsolete' engine?

zeeman

iTrader: (1)

a ZC....lol
meaning, why put so much money into such an old engine?There's better engines to build...like a b-series or k-series...or even a d16y8.
But to each his own.

Mr. Death

You should be okay with stock sleeves even at 20psi again "with a good tune". Take for example the d16 tuned by Jeff Evans used on Pinks. Here's a quote, "It took 30lbs of boost to make 460whp on a stock sleeved d-series. I guess the rumor that stock sleeved d-series blocks not being able to take high horsepower is false. " -- Evans Tuning.

The proof is in the puddin...

imported_weiRtech

i know someone who runs 14psi on his daily driven zc powered crx and he hasn't had a problem in the 5 years it has been boosted. he has it tuned with zdyne.

chris_si98

you should speak in terms of horsepower goals instead of psi goals. 10-12 psi is different on every setup.. even if the turbo is the exact same.

your engine can take around 220whp if tuned properly.

You can get some low compression pistons if you want to run 250whp. No sleeving is necessary. I know guys who run 300whp with stock sleeves daily