TGUNNER

my boy has a gs integra with a jrsc on it.. we werent to happy.. we put a crv crank pully on and it was around a little over 9 lbs.. so it was a little faster.. Then another friend of ours who is a machinist made an oversized alternator pully (which is what drives the supercharger).. we put everything on lined it all up great took it for a spin.. the boost gauge went to 17 lbs with the tires spinning, then the car just nose dived... We figured it was leaning out but still are not sure.. we put the stock pully back on and are at close 10lbs on a good day.. Can anyone help out??? will it work with a fuel system?? Can the stock comp. handle that kind of boost?? or can the supercharger handle that boost???

this all seemed like a good idea at the time... lol

thanks in advance

VTC_CiViC

JRSC + 17psi w/ no fuel mods = Nuclear Detonation

Sonny

What he said!

Sonny

TGUNNER

Sorry he has JR fuel pump and FPR... if he does injectorsand a fuel rail will it help??

stizzit

If you ran it for any amount of time, the supercharger is probably toast. I wouldn't be surprised if your rotor to case clearances are way out of spec and if you lost the heat treatment that is on the rotors. Good luck, your charger is gona need a micacle.

jamal-188

]

Very True!!!! The JRSC is not made to run at 17psi either, due to heat(no intercooler) and other reasons. Most people dont' go abot 10-12psi because heat casues it to become way too ineffecient!

TurboSohc

Pls tell your buy to get some bigger injectors along with a hondata

b18bturbo

most definitely a good choice 550cc and hondata you should be fine.

BHSCGSR

This is true.....even if you go with a Hondata and bigger injectors don't expect the SC to last very long....10-12 psi is max on an unmodded SC. ENDYN can mod the SC to handle that can of boost supossedly.........

falcongsr

this should be fun.

static fuel pressure with JRFPR is 60psi

about 6:1 rise rate

17*6 = 102 + 60psi = 162psi

good luck.

philo

With all fuel issues aside, at 17psi with no intercooler and being so far past peak efficency the intake charge is gonna be so hot you are gonna melt a piston for sure.

tonydatyga

hahahahaha... thermonuclear fission

D-SPEED

what he said

PROFILES2000

tom listen to this guy

TGUNNER

hey whats up joe!! thanks for all the info guys.. We actually were not expecting 17 lbs out of the set up, we were thinkin more along the lines of 14 to 15.. the car was not run long at all at 17lbs... and like i said we put the given pully back on the car runs gr8 at like 9.5-10lbs.. oh and that endyn crap is all bullshit... we may try the makin a different pully and doing a full fuel system.. ill keep posted.. thanks again..


peace


[Modified by TGUNNER, 1:43 PM 4/30/2002]

Blown90hatcH

You need to cool the JR. I ran mine consistantly at 13psi or so...non intercooled and it was hating life. I couldnt even drive that thing in the summer with out letting it cool. I would recommend doing some research on topics that involve intercooling the JR that have been on the boards lately. Maybe even check out a 25 shot or so for the JR to cool. You will make alot of power and cool it at the same time. Also, B18bturbo siad it right about the fuel and standalone. That is a must.

Dublocivic

17psi jrsc? LMAO!

98Psi ITR

even with engine management, at 17psi you will have mechanical failure first. some type of alcohol or water injection and intercooler is a must. fuel and timing.

TGUNNER

if you read the posts you wouldent be laughing MORON.. was not intending 17lbs.. We wanted 14 or 15 like i stated b4... So read the posts b4 you critisize.. The site is to ask questions and get anwers.. To all you that gave me respectible, and helpful responses... THANKS once again


peace

dbman96

Eaton blowers are known to be virtually worthless above 12 psi - the heat going into the air is so great that the reduced density of the charge is greater than the increase you get from the boost, so you effectively start losing power if you try to push it much higher than 12 psi.

If you want more than that out of a blower, get a lysholm (screw) compressor.

Daemione

Following this tangent a little further . . . . Who do you know of that packages positive displacement compressors? I know there's several for domestic applications (Whipple, Kenne Bell, etc.), and someone offers one for VW Corrado's (to replace the G-lader thingy).

And I believe Hytech is developing a screw-type for the RSX, but is there anyone out there with, say, b or h-series applications?


[Modified by Daemione, 3:09 PM 5/1/2002]

Dublocivic

I think 14-15 is even funny. Man I've seen JRSC on about every application and the reason that I was laughing is because they create horribly hot air at high pressure and the hot AIT negates any thought of higher boost levels. They plainly create way too much heat! JRSC are great for mild setups but man without some crazy R&D and case/intercooled mods it will not last long at all. The extra heat causes the rotors to expand slightly. The clearances are already pretty darn close and when it expands the rotors will tear at the inside of the charger casing, in turn throwing bits of rotor/casing/rotor coating (that black ****) into the motor. This will grenade your setup bro. I didn't mean to laugh it just caught me funny. I see stuff like this posted all of the time.. stuff that has been covered time after time. Im not jumping on you, just laughing, and you Mister Moron should have searched first and you would have seen that this is the result of over spinning a JRSC.
(keep in mind this is if detonation doesnt get you first)
**PEACE **


[Modified by Dublocivic, 9:09 PM 5/1/2002]


[Modified by Dublocivic, 9:24 PM 5/1/2002]