JR supercharger as a "beauty mod"

Mosca · 09-28-03, 11:10

Yes, I wanted the power, but also I always thought that it is as much the look under the hood that I was always after. See what you think. I still have some hose- and wire routing and looming to clean up, btw.

Before:

After:

Tom

Deanski · 09-28-03, 11:28

WOW Holy boost! Man that should give you a good kick!

Nice work and attention to detail, as if that wasn't a factor.

Good luck with this sick unit!

Regards,
Deanski

joed1228 · 09-29-03, 10:20

Ever think of putting a Ford 5.0 or a Chevy 5.7 LS1 in that car? Talk about torque

beastie · 09-29-03, 01:32

Are you still with stock clutch? Did you go for the smaller pulley for the extra boost? Good work!

Calestus · 09-29-03, 02:09

this may be a dumb question but....did you put anything between the exahust pipes and the supercharger(heat shield, wrapping, etc.). As in the pictures it seems it is mounted directly above them.

Mosca · 09-29-03, 07:56

Ben,

Yeah, stock clutch. There's a little slip under full throttle shifting, but since I never shift under full throttle anyhow, it's no big deal. And yeah, smaller pulley. The stock kit is 5 to 6 psi, I'm about 7, maybe almost 8; the line to my gauge is long with a slight kink. I'm going to sort it out this weekend.

Calestus,

The header is ceramic-lined, but I know where you're coming from. The lower SC mounting bracket uses the upper header bolts. It isn't shielded, but it isn't an issue, either. I honestly couldn't tell you why it's not an issue, but there are several thousand JRSCs out there, and they're all mounted the same way (except for the cold-side conversions, of which there are less than 50, I'd bet), and it's not a problem. And, interestingly along the same lines, dyno tests on the stock JRSC show that an intercooler decreases hp. Again, I don't know why. I read the thread about it, and ignored the "why" but took the information I needed (which was, don't buy an intercooler).

Tom

Calestus · 09-29-03, 09:31

superchargers arent all that efficient to begin with......neither are most intercoolers....they will drop the psi any where from .1 to 5 psi (some even more) depending on just how badly they are designed. but on the flip side a very efficient intercoller will drop your intake temperatures which means you can squirt just a wee bit more fuel in there mmmmm forced induction. as in everything there are gives and they are takes

i would give up 1 psi knowing i could squirt enough fuel in there to more than make up for the drop in psi even then i like cooler air flowing into my cylinders anyway.

Mosca · 09-30-03, 09:56

Yeah, I should have said what I meant, "don't buy an intercooler for this particular application." I think that it doesn't cool enough, in this application, to make up for the loss in psi. And, it's like 900 bucks.

Tom

TortoiseAWD · 09-30-03, 11:54

Mosca,

If you ever decide you want more boost (and you will

), but intake charge temps temps and/or detonation become an issue, check into water injection . . .

Tort

PanaPower · 11-21-03, 02:53

either that or you can run a wet shot to cool the AIT.

Gonzo · 12-02-03, 06:55

BE VERY CAREFUL in coolish/cold weather. Blown engines will detonate in a heartbeat and you could loose rod(s) and/or get block ventilation. Back off some timing advance, make sure you are running really rich, run 93 octane or better to help control detonation. DYNO TUNE, DYNO TUNE, DYNO TUNE.

BTW the pix don't show up

PanaPower · 12-05-03, 05:52

Quote:

Originally posted by Gonzo
BE VERY CAREFUL in coolish/cold weather. Blown engines will detonate in a heartbeat and you could loose rod(s) and/or get block ventilation. Back off some timing advance, make sure you are running really rich, run 93 octane or better to help control detonation. DYNO TUNE, DYNO TUNE, DYNO TUNE.

BTW the pix don't show up