Jackson Racing Rotrex Supercharger System Info and Discussion

[CSG Mike]

Originally Posted by 000000

Mike, look at the file numbers.

Anyhow

I’ts been a long wait, lurking the forums, but now I have a few questions…

1. Where can I get 15 or 20 psi pulley for c38? Is it even realistic? (built+supporting mods ofc)

2. What’s the rpm of the c38 at 12psi? Suggestions for formula to calculate proper pulley that doesn’t overspin the unit at 8k+ rpm? yes...i needz stupid things

3. Has the serpentine belt been tested with higher boost and were there any issues? (slipping breaking etc) How long does it hold up?

For a long time, I was looking at the KW kit, but with so much negative info/complaints I’ve found all over, I decided to hold out until JR made their upgraded kit. Planning to get it in a few weeks.

Regarding the knocking, is it due to leaning out or just bad fuel or trying to remain carb legal against all odds or what?

Whoops. Normally they're listed progressively.

1. From us. You will see about 16psi with a 100mm HBP on the C38.

2. The HBP is good for 8450 engine RPM.

3. Zero issues that I've ever heard of.

Let us know when you're ready for your kit.

[themajesticone]

Is it possible to order a new intercooler mount and bolt by itself?

[SoCalArgento]

Originally Posted by SPCorBUST

Went to a small dyno day yesterday and had, even while heat soaked from "Carmageddon" and dynoing in the hot part of the day, some nice results. I'd originally planned to bring my SRT-4 but it isn't ready yet.



A lightly modded C5 Corvette was also on this dyno and put down just over 370. The car's first pass drew some attention and a small throng came to watch the other passes. It was a fairly mixed group of blown Cobras, Stage 3 and big turbo SRT-4's, and other random muscle cars. Seeing the muscle car / domestic group's reactions was priceless.

Thumbs up to @Jackson Racing again for making such a quality kit, and bringing to market some nice upgrade options recently as well. I fully believe that with a C38 and Ace headers, the car would see north of 400whp and hurt more feelings than it already has.

What mods do you have to get these numbers?
C30 with HBP or c38?

91 or E85?

Thanks in advance


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[SPCorBUST]

Originally Posted by SoCalArgento

What mods do you have to get these numbers?
C30 with HBP or c38?

91 or E85?

Thanks in advance


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C30 HBP E85

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[SoCalArgento]

Originally Posted by SPCorBUST

C30 HBP E85

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No aftermarket exhaust or fuel mods?


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[SPCorBUST]

Originally Posted by SoCalArgento

No aftermarket exhaust or fuel mods?


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Dyno tune (Church), Gruppe-S UEL catless headers, Perrin 2.5" overpipe, Perrin 2.5" catted front pipe, Perrin 2.5" exhaust, Grams 265 pump

[SoCalArgento]

Originally Posted by SPCorBUST

Dyno tune (Church), Gruppe-S UEL catless headers, Perrin 2.5" overpipe, Perrin 2.5" catted front pipe, Perrin 2.5" exhaust, Grams 265 pump

Very nice, I'm gonna have a very similar setup snd hoping to reach near those numbers.


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[CSG Mike]

Originally Posted by themajesticone

Is it possible to order a new intercooler mount and bolt by itself?

Absolutely.

[000000]

Thanks Mike, that's exactly what I'm looking for. I'll pm you in a few weeks time, to hammer out the details (my friend will most likely take delivery in the states and handle shipping accross the atlantic).

Originally Posted by CSG Mike

Whoops. Normally they're listed progressively.

1. From us. You will see about 16psi with a 100mm HBP on the C38.

2. The HBP is good for 8450 engine RPM.

3. Zero issues that I've ever heard of.

Let us know when you're ready for your kit.

[DHitHim]

do you know if the greddy oil cooler with its ducting will conflict with the jrsc intercooler piping?

[The Racers Line]

Originally Posted by DHitHim

do you know if the greddy oil cooler with its ducting will conflict with the jrsc intercooler piping?

yes it will. Just sell it and use the JR oil cooler. It was very thoroughly designed to work together with the supercharger.

[xero404]

Originally Posted by DHitHim

do you know if the greddy oil cooler with its ducting will conflict with the jrsc intercooler piping?

I couldn't for my blitz cooler with ducting and it's sorta the same place as the greddy

[The Racers Line]

Originally Posted by xero404

I couldn't for my blitz cooler with ducting and it's sorta the same place as the greddy

Lol, just used you as an example in the other thread

[SkiRideDrive]

Hello everyone,

I am considering forced induction for my 2015 FRS. If I pull the trigger, my research has swayed me to the Jackson Racing C38 supercharger (the edelbrock was the runner up). Planned use is daily driver/canyon runs/occasional track day.

I live in California and am planning on going back to carb compliant once the car needs to be smogged for the first time (after six years from new iirc).

Planned setup was the JR C38 Carb tune and the JR Dual Radiator / Oil cooler setup. I currently have Gruppe-S UEL headers on the car and an OFT tune. It seems I would need to unload the OFT to run the ECUtek tuner/carb tune.

My questions are:
1.Does anyone have experience with the JR Carb tune with uncatted UEL headers? I was hoping to leave my Gruppe-S header installed until I had to swap back to stock for smog in a few years.

2. If not, better off running a custom tune until smog? But then I'd have to get the smog tune later at additional cost and not sure if the kit would have the smog number then.

3. Any comments on the dual radiator/oil cooler versus a traditional air to oil oil cooler? I am currently running an OEM style subaru oil cooler for a little help on the NA motor but it won't be sufficient with the added power. I've logged pretty extensively in another thread about that cooler.

Alternatives would be to stay NA a bit longer to save up some money and pick up a Camaro SS 1LE or build something like a Factory Five Gen 3 Coupe down the road. I drove the SS this past weekend and was pretty happy with the power, but not ready to dump that kind of cash right now.