JR S/C hot air debate..
12-10-2008, 09:40 PM
#11
1.5 BAR
Thread Starter
Join Date: Oct 2005
Posts: 1,490
Re: JR S/C hot air debate..
Originally Posted by chris
I have never really looked at the design but a larger throttle body,set of ctr cams and some port work will balance out the small charger they use. Also what header is he running? There is a brand kamakizee which has fallen of in years but its suppose to work really well on the jrsc set ups.
i told him to de-cat that would help
i never drove it but the guy gave me a rid in it but he never floors it from low rpm only like once and it was from 3 k and it just wheel hoped like a pice of ----! not even a good spin so
for the S/C aint got ---- junkyard hmtJRSC= is for homos
12-10-2008, 11:43 PM
#13
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: JR S/C hot air debate..
Originally Posted by theebluecrx
A good local tuner wont tune JRSC cars unless they run a LHT aftercooler(JRCS's aftercooler builder whos from our area).I hear big gains are possible from adding one.
air/water is superior
12-11-2008, 01:52 AM
#15
0.0 BAR
Join Date: Jan 2005
Posts: 0
Re: JR S/C hot air debate..
M62 is not being spun fast enough, but GSR VTEC kills SC boost output. Spin the blower faster but then delta temps go through the roof.
Even a M90 case on a GSR has a hard time keeping up with boost due to blow thru with VTEC overlap.
Eaton based SC design not meant to turn Honda style rpms, V6/V8 lower rpm power curves.
Even a M90 case on a GSR has a hard time keeping up with boost due to blow thru with VTEC overlap.
Eaton based SC design not meant to turn Honda style rpms, V6/V8 lower rpm power curves.
12-11-2008, 08:01 AM
#18
3.0 BAR
Join Date: Dec 2002
Posts: 3,830
Re: JR S/C hot air debate..
The last time I worked on a JRSC LS, I remember the IAT's pegging out at 2 something partway through the street tune. It never came down form there.
IIRC, once you venture past 140-150ish IAT's, you're getting into diminishing returns on the boost increases.
Dave
IIRC, once you venture past 140-150ish IAT's, you're getting into diminishing returns on the boost increases.
Dave
12-11-2008, 11:40 AM
#20
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: JR S/C hot air debate..
Originally Posted by turbo4life
this thing starts to feel week after 6500 rpm and his askin why?!! im thinking the air gets hotter and hotter as you spin the S/C faster like a turbo compressor leaving its efficiency range..
Originally Posted by Mista Bone
Even a M90 case on a GSR has a hard time keeping up with boost due to blow thru with VTEC overlap.
The problem is the roots blower is flat out inefficient and spinning the blower faster is just the law of diminishing returns revisited. If you get one for a good deal game on, they are decent on a streetcar with a shot of nitrous. I wouldn't buy one for the prices they command new.
