EkFG

okay after about a month and a half ive been contemplating about this set up.
I started my build as a NA semi stock rebuild motor.
Spec's"
B18c1
Rebuilt cylinder head and milled .008 with valve job
Block was bored and hone to 50mm
Type R pistons 50mm USDM spec
piston to wall clearance was 1-1.5 (thousands of an inch)
crank was polished and chamfered
Rings were gap at 1st at .016 second at .018 third at .015 for oil control
everything else was replace gaskets seals bearings etc...

I just picked up a turbo kit from my buddy practically FREE.
Consist of
T3/t4 hybird
ramhorn

Highest pump gas around here is 91 octane
now that i have the turbo its time to decide.
I figured my CR @ 11.3:1 and static CR with 5 psi at 14.9:1-15.3:1,
using the zealautowerks calculator. I wasn't too sure about it and contacted
JE and they said that sounds about right with there calculator.
I know tunning will be a issue , but im thinking that if i stay under 6 psi i might be okay on a decent tune. I know that with different gas and better tuning i could up my psi but
Im not looking for a whole lot.

Im sure a lot of racers are running high CR with boost at the track but they never want to disclose any info, lol i dont blame them.

any input would most deff be considered.

the way im looking at it and from what i have been reading :
low compresion and boost just leaves option for mistakes
verses high CR with boost.

94c1v1cex

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</TD></TR></TABLE>

ok this means that you have an exhaust flange... that doesn't help us out any to help you. whats the a/r, trim, exhaust outlet. etc

EkFG

a/r 50 and 63 exhaust housing

EkFG

any one have any input? or experience?

dohczccrx

its gonna be all in the tune. do you know somebody capable of a bad *** tune? if so go for it

EkFG

Around here there are two shops Beeyond Engineering and King Motor Sports.

also my pistons are not forged... but that should be okay still

dohczccrx

if you get a good tune and i mean good tune then you will be fine

ke98248

iTrader: (1)

you will probably want to run higher octane than 91 that's pretty low.. Or lower the compression. You make more power with higher CR on 6psi on the same motor with a lower CR but you need a great tune and high octane.

dohczccrx

well he said 91 is all he has plus 91 is fine if he gets a good tune. a good tuner will be able to make it reliable. 6psi is not all that much any ways.

EkFG

anyone here ever had and experience with this kind of setup
should i run my T3T4 50in 63EX
or a straight T3 thats like 43in and 48ex or something like that, any recommendations.

EX-T

I say keep what you got and just spend the money one the tune since you got the kit for "free".

I got a basemap tune from http://www.phearable.net for $30 shipped and they asked for everything that was done to the car in order to burn the right chip. They might be able to get you a good safe basemap for the time being....