Anyone know of any tuner (midwest area) that can tune the following setup? I haven't picked out an engine management (OBD1) yet cause I wanna see what the tuner would recommend me for this. I have everything now just waiting to get it install next week and go straight to the tuner. I know people would tell me that it's stupid to do something like this but I got both the GT28RS and JRSC for $1,500.

B18B
JRSC 7PSI
GT28RS
Precision 350HP FMIC
Walbro 255
Precision 625 Injectors
2.5" downpipe
Apexi N1 Exhaust (2.5")

P.S. If the JRSC is pushing 7PSI and turbo is pushing 7PSI. Would this be consider pushing 7, 14, or 21 psi total?

 

pics?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowteg90 &raquo;</TD></TR><TR><TD CLASS="quote">pics? </TD></TR></TABLE>

 

in

 

it would be 14psi to answer your question. Any tuner that's good should be able to do it.

check out http://www.cornbredtuning.com I think they're in Chicago and they kick ***.

 

Would it be 14 psi? I think because you're compressing already compressed air, it's not as simple as addition(?). But being that a super is more of an air mover than a compressor, you may be right. I would compound it and put the super before the turbo.

 

Talk to rmcdaniels. He put together a set-up like this but utilized a by-pass valve.

https://honda-tech.com/zerothread?id=1293497

 

Either sportcompact or superstreet did this successfully on a stock gsr. The idea was originally from some ralley car from the early 80s. It seemed pretty straightforward for someone who tunes turbo and it sounds like you are going to be preparing the engine much better than the mag did. Good luck

 

updates?

 

it will not be 14 psi. they are compressors based on pressure ratios and not set increases. it would be about 18 psi i believe. 7 psi is about 47.6% pressure increase over 1 atmosphere. pushing that through another compressor also set at "7psi" or 47.6% compression makes for a compound compression ratio of 2.179 atmospheres. minus the original 14.7 psi that takes us out of vacuum and you have 17.325 psi.

14.7*1.476=21.6972-----or 7 psi boost
21.7*1.476=32.0292-----or 17.33 psi boost.
that's alot of extra heat by the way.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stmizner &raquo;</TD></TR><TR><TD CLASS="quote">
that's alot of extra heat by the way. </TD></TR></TABLE>

it seems like the biggest challange is going to be the heat. sounds interesting though

 

you NEED to pick up a copy of Corky Bell's book Maximum Boost and read it cover to cover. Study it. Memorize it. if you think the fundamentals are beneath you, one of you should have known this. no offense.

 

I believe the jrsc has a bypass in it once you get to a certain boost presure
it opens, so your probably not going to see 14psi. The reason they used both
was so you get boost in low rpms with the supercharger and good boost
in high rpms with the turbo, if you want 14psi or more just get a bigger turbo.


Modified by rd91sib18c5r at 4:57 AM 10/25/2007