Jackson Racing Supercharger Owners Thread

[gmsii]

on the subject of upgrades...a certain little birdie said this....

“Yes, there are multiple C38 JRSC cars running around, and also multiple high boost cars. Every single one of these cars are heavily tracked cars.

It is only available by calling CSG or Jackson Racing directly. It is
not publicly available through every JR dealer because it is a highly
application specific product.

You *CANNOT* properly utilize a C38 unless you have a built engine. You need to be pushing more CFM and boost with a C38 than a C30 can at peak, to actually be getting any more flow or power with the C38. Anyone running a C38 at 12 psi or lower, quite frankly, is using the wrong supercharger.

The problem is, if you're running 12+ psi, you need to be running either race gas or E85. Most people will opt for E85. This means output will be north of 325 torque and 400 horsepower.

325 torque is where the stock transmission's failure point is, and you already need to have a clutch to even get to that torque level. Guess what fails? The trans. At this point, the cheapest aftermarket
transmission option is 18k.


The C38 JRSC has been around since day 1. It is not released because it is not the right product for 99% of the general public. JR is not in the business of selling the wrong product to people, and nor is CSG.

The price for the C38 and C30 are the same from Rotrex.

Next, the high boost pulley. This is also available, and has been from day 1. The reason the 110mm pulley was chosen for the stock kit, is that a LOT of tuners like to tune for higher redlines. For some reason, the general public thinks this is safe (it's not), so the pulley
was sized to max out the blower near 8000 RPM, so that the supercharger is less likely to be overspun by a third party tuner. The 100mm pulley takes the supercharger to max at about 7350 RPM. The 110mm pulley also happens to high the limitation of CA 91 right as you hit the stock redline.

Obviously, the other parts are not part of the CARB kit, and if you do
get a ref ticket, you'll need to have the stock pulley on (they measure
it), but you will pass with a CARB tune and cats on.

A pulley swap is a 10 minute job, at most.”

[DeliciousTuning]

Originally Posted by gmsii

on the subject of upgrades...a certain little birdie said this....

“Yes, there are multiple C38 JRSC cars running around, and also multiple high boost cars. Every single one of these cars are heavily tracked cars.

It is only available by calling CSG or Jackson Racing directly. It is
not publicly available through every JR dealer because it is a highly
application specific product.

You *CANNOT* properly utilize a C38 unless you have a built engine. You need to be pushing more CFM and boost with a C38 than a C30 can at peak, to actually be getting any more flow or power with the C38. Anyone running a C38 at 12 psi or lower, quite frankly, is using the wrong supercharger.

The problem is, if you're running 12+ psi, you need to be running either race gas or E85. Most people will opt for E85. This means output will be north of 325 torque and 400 horsepower.

325 torque is where the stock transmission's failure point is, and you already need to have a clutch to even get to that torque level. Guess what fails? The trans. At this point, the cheapest aftermarket
transmission option is 18k.


The C38 JRSC has been around since day 1. It is not released because it is not the right product for 99% of the general public. JR is not in the business of selling the wrong product to people, and nor is CSG.

The price for the C38 and C30 are the same from Rotrex.

Next, the high boost pulley. This is also available, and has been from day 1. The reason the 110mm pulley was chosen for the stock kit, is that a LOT of tuners like to tune for higher redlines. For some reason, the general public thinks this is safe (it's not), so the pulley
was sized to max out the blower near 8000 RPM, so that the supercharger is less likely to be overspun by a third party tuner. The 100mm pulley takes the supercharger to max at about 7350 RPM. The 110mm pulley also happens to high the limitation of CA 91 right as you hit the stock redline.

Obviously, the other parts are not part of the CARB kit, and if you do
get a ref ticket, you'll need to have the stock pulley on (they measure
it), but you will pass with a CARB tune and cats on.

A pulley swap is a 10 minute job, at most.”

That is basically what we tell our customers. C38 superchargers really are not worth it unless you are on race fuel or E85.

Cheers,
William Knose
Delicious Tuning

[CSG Mike]

Originally Posted by gmsii

on the subject of upgrades...a certain little birdie said this....

“Yes, there are multiple C38 JRSC cars running around, and also multiple high boost cars. Every single one of these cars are heavily tracked cars.

It is only available by calling CSG or Jackson Racing directly. It is
not publicly available through every JR dealer because it is a highly
application specific product.

You *CANNOT* properly utilize a C38 unless you have a built engine. You need to be pushing more CFM and boost with a C38 than a C30 can at peak, to actually be getting any more flow or power with the C38. Anyone running a C38 at 12 psi or lower, quite frankly, is using the wrong supercharger.

The problem is, if you're running 12+ psi, you need to be running either race gas or E85. Most people will opt for E85. This means output will be north of 325 torque and 400 horsepower.

325 torque is where the stock transmission's failure point is, and you already need to have a clutch to even get to that torque level. Guess what fails? The trans. At this point, the cheapest aftermarket
transmission option is 18k.


The C38 JRSC has been around since day 1. It is not released because it is not the right product for 99% of the general public. JR is not in the business of selling the wrong product to people, and nor is CSG.

The price for the C38 and C30 are the same from Rotrex.

Next, the high boost pulley. This is also available, and has been from day 1. The reason the 110mm pulley was chosen for the stock kit, is that a LOT of tuners like to tune for higher redlines. For some reason, the general public thinks this is safe (it's not), so the pulley
was sized to max out the blower near 8000 RPM, so that the supercharger is less likely to be overspun by a third party tuner. The 100mm pulley takes the supercharger to max at about 7350 RPM. The 110mm pulley also happens to high the limitation of CA 91 right as you hit the stock redline.

Obviously, the other parts are not part of the CARB kit, and if you do
get a ref ticket, you'll need to have the stock pulley on (they measure
it), but you will pass with a CARB tune and cats on.

A pulley swap is a 10 minute job, at most.”

Why yes, yes I did say that.

[enivid]

Originally Posted by gmsii

on the subject of upgrades...a certain little birdie said this....

Can you run the C38 on 91 octane?

[campy]

Originally Posted by DeliciousTuning

That is basically what we tell our customers. C38 superchargers really are not worth it unless you are on race fuel or E85.

Cheers,
William Knose
Delicious Tuning

I'm sure that doesn't stop some people from demanding a C38 for their 91oct street setup anyway.

Thanks for the info @gmsii

[DeliciousTuning]

Originally Posted by campy

I'm sure that doesn't stop some people from demanding a C38 for their 91oct street setup anyway.

Thanks for the info @gmsii

Naturally, though they seem to quickly regret it and either go E85 full time or go back to the C30 blower, or sell the kit altogether in the case of these Kraftwerks kits. It's just not viable on 91.

Sincerely,

Zach
Delicious Tuning

[enivid]

How much extra hp to people typically get with the smaller pulley on the C30?

[DeliciousTuning]

Originally Posted by enivid

How much extra hp to people typically get with the smaller pulley on the C30?

Depending on the tune and quality of gas, anywhere from 15-20 would be my guess at peak. Keep in mind that a C30 on a smaller pulley gets questionable above 7000rpm, however; at least on 91 octane.


Sincerely,

Zach
Delicious Tuning

[ScionOfHorus]

Originally Posted by sales@delicioustuning.com

Depending on the tune and quality of gas, anywhere from 15-20 would be my guess at peak. Keep in mind that a C30 on a smaller pulley gets questionable above 7000rpm, however; at least on 91 octane.


Sincerely,

Zach
Delicious Tuning

How is it on 93 octane?

[DeliciousTuning]

Originally Posted by ScionOfHorus

How is it on 93 octane?

93 octane tends to be leaps and bounds over 91, especially CA 91. I wouldn't foresee any issues running the smaller pulley on 93 octane.


Sincerely,


Zach
Delicious Tuning

[ScionOfHorus]

Fuck yeah, states not California

[CSG David]

Originally Posted by ScionOfHorus

Fuck yeah, states not California

I want your gas. I want your oil. All your oil belong to us! jk

[ScionOfHorus]

Originally Posted by CSG David

I want your gas. I want your oil. All your oil belong to us! jk

Me being in Texas and all

[fasteddy]

Hey David, are the RaceRom features such as auto blip, map switching and advanced traction control included with the carb tune?

Thanks.

Pat