sc gsr

[lude_pwr]

i'm in a long process of swapping a b18c1 into my 90 si. i thought about going with a jrsc cause i'm aiming for insane low and mid range torque(well, surprising tq for a 1.8L). i wanted to ask you guys if the jrsc would clear the firewall with hasport mounts. or any type of decent moto mounts at that.

there is an ad on hasport.com that sells a jrsc for a b16a ef. i clicked the ad and it lists all the motors in the rex that are compatible with the sc and it doesn't list the b18c1.

i know the gsr intake manifold is different from b16a, ls and type-r meaning the sc kit would be a little different as well. but that's not the issue, clearance is. now if a b18c5 with jrsc can fit in a rex, why couldn't the b18c1 clear?

It's a possibility that hasport may carry all the jrsc's except gsr and that's not why they listed it. either way, i would like an answer from people know there stuff. that's why i came to you guys

[jon]

contact them and ask

[AcidLotus]

My installer/tuner says: "Yes, You still have to "notch" the frame rail to clear the alt pulley. It does fit though, very tightly." Hope that helps.

[mr2guy7]

i know that the jrsc is alot cheaper but if u want more power u might wanna think about the vortech sc
with the jrsc it puts u at 222hp and 159 tq
with vortech they are claiming 278hp and 192tq the only prob is price

[AcidLotus]

Read the stickies in the Supercharger forum before deciding between Vortech and JRSC.

[jon]

Originally Posted by njn63

higher boost? I do like the vortech more though because it's easier to throw a intercooler on.

same here, i like how the centrifigual sc is alot more efficient than the roots or twin screw blowers

[lude_pwr]

you guys should read the stickies in the supercharger forum. jrsc vs. vortec is what it's called. it's good stuff.

sure the vortec puts out a higher peak hp and tq. but it doesn't do much down low or in the mid-range, which is where you will more often and longer than the high end.

edit. i emailed JR cause hasport don't have email. waiting on reply i'll let u know

[AcidLotus]

JRSC is still at full boost at 5000 RPM, while the vortech has less power output as it cubes power through the rev range. I've seen many JRSC civic SI's with nearly the same mods as a few vortech civic SI's. The JRSC wins every time, stop or roll. That's on both the low boost vortech kit which consists of 6 PSI as well as 6 PSI on the JRSC. I've also seen 9 PSI JRSCs run against 9 PSI intercooled vortech SIs, and while it's closer there, the result in the end is still the same. The JRSC pulls away faster and keeps the lead.

Just look at their site: http://www.vortechsuperchargers.com/...9-00civic.html
and compare:
http://www.jacksonracing.com/Custome...=99civicsi.gif

See how the vortech torque numbers are lower? Remember that horsepower is just a calculation of torque. HP = (TQ x RPM) / 5250. Gearing also plays a part but considering all the SI's are using the same trannies, that negates that argument for this purpose. That leaves tires and driver for the most part.

Vortechs have their place in racing and forced induction characteristics (they work great on S2000's due to their bigger displacement and high rpms, as well as many domestic V8s) but are underpowered and overpriced for any B series. Thats just a simple fact.

Edit: I also love how vortech claims "Increase Horsepower to 277 and torque to 175 ft/lbs" yet their bargraph doesn't even come close to touching 175 ft/lbs of TQ. Not to mention if we were to take the 98 ft/lbs of STOCK tq from the JRSC dyno graph and add the "Adds 64 ft/lbs of torque" they claim for their high boost kit, 98+64=162. BUNK. Makes you wonder what else they are lying about or manipulating.