[ZTWsquared]

(07-19-2012, 12:43 AM)NikiterZTS Wrote: 1. Do a compression check on your engine if you can.
2. Make sure seller's kit has everything.
3. Is it upgraded JRSC kit? SVT air box and snorkle?
4. JRSC come non-intercooled. Keep that in mind.
5. You might want to get head race header and bigger flex-pipe to get more pontential power out of S/C

Further to this: the only one worth getting is the JRSC BBK (big blower kit) and you will definitely need the 42 lb injectors that are supposed to be with the kit and you will definitely need to invest in a tune - this kit is dangerous on a stock tune.

Additionally superchargers need to be rebuilt on a regular basis, so unless you can actually hear this one turning and see the boost it produces, you will be taking a bit of a risk that it's time has ended.

If you can, look at the edges of the scrolls and make sure they are clean and straight and not pitted or corroded. Also make sure it turns easily and there is no looseness or wobbling at the pulley.

Also: the JRSC BBK develops a tremendous amount of underhood heat and it will also significantly increase the intake air temps which will reduce the power it produces (look up: volumetric efficiency).

Superchargers by their design use engine power to produce power - and so, if you're lucky, while you might get 200 hp to the wheels the engine has to generate an additional 25 or 30 hp just to turn the supercharger - which means the engine is working harder than what you feel at the wheels - and so your engine needs to be up to that task.

For both of the above reasons I recommend using a water-meth injection system which has two positive effects - it significantly increases the octane level of any gas which allows you to use 87 without fear of detonation, and it significantly reduces the intake air temps - both of which allows the tuner to maximize timing advance for more hp.

To that last point, one final change I highly recommend for the sake of keeping your engine intact. Move the intake air temp sensor into the intake portion of the supercharger - in its stock location it will not get an accurate reading because it will not include the added temps from the supercharger itself; that you can only get if the sensor is "downside" of the supercharger. It's easy and cheap to do and it will give the ECU the proper info it needs to keep the engine safe.

Good luck