How safe is running a JRSC with 11.5ish:1 CR? i assume i'll need injectors, and a fuel pump, but other than that, should it be ok?

 

Water injection? Some way, I would think, to cool the charge since the upped compression is going to burn hot alone. Compressing the air before the chamber will increase it even more, will it not? Anyone else?


Jason

 

It can be done but needs tuning.....accually high compression boosted motors will put out better numbers cause the compression is just adding power right there....you will need bigger injectors and a good fuel system tuner....definatly water injection.....this may sound stupid but fuel in the cyclinders accually diapates heat until it is fired....

PS...I see you are in VA so you don't have to worry about really cold air outside so I would definatly look into a oil cooler of some kind


[Modified by ITR41, 6:45 AM 9/2/2002]

 

jdm itr pistons?

 

well it says his ITR is sold so it doesn't have to be JDM pistons....with a B20/with B16A head 10.5:1 pistons are really 11.5:1 cause the head on that block raises compression

 

ouch, 11:5:1 compression and JRSC.....thats pushing it.

it can be done with good tuning and better fuel delivery. i just bought myself a inline-pro 3mm headgasket, which lowers the compression a full point. thought about getting one?? well damn, my R is still running stock 10:6:1 compression so it wont be too bad when i use gasket and a small greddy turbo.

 

greddy told me they are not making a turbo kit for the ITR

 

just use the gs-r greddy kit..thats what I use on my b18c5

 

ummm what piping are you using to the TB? the gsr IM is upside down.....also the fuel system they provide isn't ITR compatable....that is straight from greddy

 

it can be done needs tuning like everybody already said.... a guy i know had one on a stock comp SI and was having detonation problems... He was a dumb *** anyway so who know's it could have been just him thinking it was detonating.

I dont know this 3mm head gasket doesnt sound too good to me. I mean the head gasket is usually the weakist link anyway and now your putting a thicker section of it in their. to me it seams like now your just adding a larger section of weakness. Am i wrong about this?

 

yeah, wouldnt you jsut use the b16 kit?

 

Recipe for a TIME BOMB!

 

lisa kubo is runnin almost 12:1 compression plus a lot of boost....yes her motor is built right but it can be done....the higher the compression the more power...

 

Liso Kubo cant know too much, she isnt even racing this year.

 

Holy crap! forbid she doesn't race one year while her new car is being built....wait she doesn't race this year so that must mean she doesn't know what she is doing....since you seem to know I will tell her to give you a call next time i see her

 

Whoa, what crawled up your butt?

 

the fact that you said she knows nothin but runs deep 9's is probably the stupidest thing I have ever heard...and as far as I know nothin is up my butt

 

I didnt say she knows NOTHING, i just said she cant know TOO MUCH. And from what i heard, she is grounded because of lack of funds. Thats enough burning of this thread for me, sorry john.

 

i thought lower compression worked good for superchargers and turbos? I dont think 11.5:1 would be a good idea.. maybe a gsrs 10:1 would be good.

 

i doubt her 9 sec. boosted 12:1 CR engine runs on 91 octane. i'm assuming this JRSC project is going to be street driven also..?

 

here on the east coast we get 94 octane

 

I love all the people who tell you that it can be done. Notice they don't have one and they don't have a clue on how to build or tune one. LOL....

 

ummm....buy a hondata and tune it....make sure you get the fuel right....that's about it....it's not easy but not that complicted either

 

HAHAHAHAH.....ok that comment right there proves you dont know as much as you think....now, lets see...boost creates heat, even with low compression there is LOTS of heat with a boosted motor...now take a Supercharged car with pretty high compression and no intercooler and see how long it lasts in 95 degree high humidity air.. "Just get the fuel right, thats about it"

 

Hey, yeer. Where in NN are you from? What is your name. I dont think I have seen your car around.