JR supercharger upgrade

russellsmithies · Post by **russellsmithies** » Tue Jul 11, 2006 5:57 pm

What's a good method of geting a bunch more hp out of a 1600 NA with a Jackson Racing supercharger?
Should I reduce pulley size for more boost, fit an intercooler, change to an after-market ecu, get rid of the flappy air meter thingy, or some combinantion of the lot?
What have other people done?

thanx,

Russell

SLYDIT · Post by **SLYDIT** » Tue Jul 11, 2006 6:23 pm

smaller pulley. water injection. better computor such as an e manage or link.
Intercoolers dont work very well on these supercharged cars.
The problem is that the JR super charger is small and any increase in boost comes with a massive increase in intake temps requiring the water injection. Theres no way to get "a heap" of power out of this kit.

DBM58 · Post by **DBM58** » Tue Jul 11, 2006 7:22 pm

Is the same true of Sebrang superchargers? It looks as though I will need a bit more power to keep up with Gazza in his new white machine.

Post by **zorruno** » Tue Jul 11, 2006 7:50 pm

Hi Russell,

I have a setup (uninstalled still though) that uses a decent sized
water/air intercooler and pully change for more boost. Link ECU will
get rid of the flapper (although I have a 94). I'd start with a new ECU
then work from there.

$ per HP, my setup probably couldn't be beat... but I did get the whole
setup for a good price. I can flick a link to some photos if you like
of it installed in the original car, and uninstalled with all the bits
shown. I have a dyno chart from the original car too.

All said and done, a turbo will generally give you more HP/$ and be much
easier in the long run to upgrade. If you have the supercharger
already, water injection is probably the simplest (or a nitrous kit),
but intercooler obviously better in the long term. If you really have
the massive HP bug, then the only option is selling the SC and starting
afresh with a well planned turbo system.

I'd check out the US SSCOR list if I was you (although I haven't
bothered) and see what others in the US have done. I think DBM58
monitors it.

cheers
--
(z)

[Posted via External Email]

Post by **zorruno** » Tue Jul 11, 2006 7:51 pm

DBM58 wrote:Is the same true of Sebring superchargers?

They are the same beast, different name.

GEEMCB · Post by **GEEMCB** » Tue Jul 11, 2006 9:58 pm

Don't know if it helps, but JR offer a boost-up kit. See here for the 90-93 version

http://www.jacksonracing.com/Shop/ViewP ... exID=38408

Seems to comprise of a different pulley, high pressure fuel pump & more electronics for fuel management.

I don't have a boosted car (at present !) but the other thing to consider is normal driving conditions. Personally I like superchargers as their characteristics suit around town stop start stuff. I certainly enjoyed my 1984 Mitsi Cordia Turbo & the blast that kicked in over 4000RPM - however spooling up took a while. And yes that's old technology now, but the same principles still apply methinks.

Anyway - try the JR site - may help.

Regards,

SLYDIT · Post by **SLYDIT** » Tue Jul 11, 2006 10:12 pm

do not under any circumstances buy the JR electronics stuff...they are hugely overpriced and offer very little in the way of real tuning. That knock sensor unit is super expensive and doesnt actually solve the REASON the car is knocking in the first place.
i guess it depends on how much more power you want and what your budget is.

russellsmithies · Post by **russellsmithies** » Wed Jul 12, 2006 10:52 am

I'm already running water/methanol injection and have a JR knock sensor fitted. I might wait untill the weather warms up a bit and do some temperature measurements to see what sort of heat is produced and if an intercooler is going to fix it.