Jackson Racing C38-81 Supercharger - CARB legal

[Roadcone]

yeah, you might wanna run some basic diagnostics... there's a serious issue there unless you've managed to mount a stock 17" wheel as your pulley on you C38

[Dru670]

Originally Posted by VABeachBRZ

That seems a little low to me. What fuel type

91 oct and I live in Vegas and was told we have shitty gas. Only fuel up at Chevron and Shell. Been given 2 other tune revisions since the last dyno. Can't wait to get it on the Dyno again and see what's up.

[Dru670]

Originally Posted by Roadcone

yeah, you might wanna run some basic diagnostics... there's a serious issue there unless you've managed to mount a stock 17" wheel as your pulley on you C38

Lol

[majixmatrix]

I hate to thread jack, but this thread seems dead anyways. Can anybody provide evidence that running the HBP with the C38 setup on a stock engine is reliable and safe? It seems with E85 this shouldn't be a problem, but how about on 93?

Thanks!

[JDMChris]

Originally Posted by majixmatrix

I hate to thread jack, but this thread seems dead anyways. Can anybody provide evidence that running the HBP with the C38 setup on a stock engine is reliable and safe? It seems with E85 this shouldn't be a problem, but how about on 93?

Thanks!

As long as it has a reliable tune, it will be reliable.

[Irace86.2.0]

Originally Posted by majixmatrix

I hate to thread jack, but this thread seems dead anyways. Can anybody provide evidence that running the HBP with the C38 setup on a stock engine is reliable and safe? It seems with E85 this shouldn't be a problem, but how about on 93?

Thanks!

It may be negligibly different than a LBP. Take TJ Hunt’s car. The car made like 10whp more with a HBP on 91 with like 10 extra psi. I don’t know if he went with a lower compression built motor, so that could be a difference besides a conservative tune, or if he did a super conservative tune, but I doubt there is much overhead for a more aggressive tune.

In terms of hp, a HBP will do very little to put extra forces on the motor, but it could be less reliable because there may be more heat generated, and more extreme to how much timing is pulled, etc that may prove less efficient or be stressful on the motor in other ways. I’m not sure if the motor has a max that it will retard timing, such that, there could be a problem for the motor if weather, heat, bad fuel, or whatever the situation would dictate that the motor would need to retard timing only to already be at its max; that could be bad.

[majixmatrix]

Thanks for the input! It seems the main concern is proper cooling, and I would honestly feel safe with a stock block on E85 up to redline with the C38 and HBP considering my car is currently my A to B daily with occasional AutoX.

I'm very interested however in the peak power potential from the C38 kit. Does a 90mm pulley exist? Previously in this thread some maths were done to determine that a 100mm pulley could not be used up to 9K RPM, but if you built the block and tossed in some stiffer valve springs, wouldn't it make sense to rev up to ~8K RPM? This would still leave some headroom/potential for the listed max RPM of the C38 (which already has a safety factor built in I assume?)

8,000 (RPM) X 1.419 X 7.5 = 85,140 (C38 RPM)

The fantasy of using up the room on the stock RPM gauge kiiiiinda turns me on. It's their fault for putting 9K RPM on there!! Teases...

Originally Posted by CSG Mike

9000x1.29x7.5 = 87075

9000x1.419x7.5 = 95782

Not enough for the 100mm pulley

[CSG Mike]

Originally Posted by majixmatrix

Thanks for the input! It seems the main concern is proper cooling, and I would honestly feel safe with a stock block on E85 up to redline with the C38 and HBP considering my car is currently my A to B daily with occasional AutoX.

I'm very interested however in the peak power potential from the C38 kit. Does a 90mm pulley exist? Previously in this thread some maths were done to determine that a 100mm pulley could not be used up to 9K RPM, but if you built the block and tossed in some stiffer valve springs, wouldn't it make sense to rev up to ~8K RPM? This would still leave some headroom/potential for the listed max RPM of the C38 (which already has a safety factor built in I assume?)

8,000 (RPM) X 1.419 X 7.5 = 85,140 (C38 RPM)

The fantasy of using up the room on the stock RPM gauge kiiiiinda turns me on. It's their fault for putting 9K RPM on there!! Teases...

It sure does!

https://www.counterspacegarage.com/jr-rs-gt86

[majixmatrix]

Originally Posted by CSG Mike

It sure does!

https://www.counterspacegarage.com/jr-rs-gt86

[stlgrym3]

which kit is more reliable pairing with stock engine and its components? c30 or c38? what is CARB tuned anyway? is that another custom tune? i'm really interested in getting JRSC in the near future.

[CSG Mike]

Originally Posted by stlgrym3

which kit is more reliable pairing with stock engine and its components? c30 or c38? what is CARB tuned anyway? is that another custom tune? i'm really interested in getting JRSC in the near future.

Equally reliable.

CARB tune is the california legal calibration which is what you need to keep your car 50 state legal, with forced induction.

[stlgrym3]

Originally Posted by CSG Mike

Equally reliable.

CARB tune is the california legal calibration which is what you need to keep your car 50 state legal, with forced induction.

is CARB tune another ECU flash similar to the jackson racing Ecutek tune tuner shop puts out? but instead of help the performance it helps your car passes SMOG check?

[CSG Mike]

Originally Posted by stlgrym3

is CARB tune another ECU flash similar to the jackson racing Ecutek tune tuner shop puts out? but instead of help the performance it helps your car passes SMOG check?

It is the proper calibration for the supercharger, as provided by Jackson Racing, that also allows your car to pass smog checks.

[Rederick]

Any reason this kit wont work on the 2017s? Also if the user has their own ECUTEK cable and license, is it possible to get just a tune sent for the CA 50 state?