Jackson Racing Supercharger Owners Thread

[CSG Mike]

Originally Posted by Xuningshen

not so much related to our SC but...

does anybody have any oil pressure logs or something from their car? just curious with it getting warmer. My oil pressure seems tapers off around 4.5k-5k rpms. holding the same PSI until redline. after sitting in traffic it'll be in the 50's after 5k rpm with 5w30 and the air to oil, oil cooler

you guys all seeing similar?

Unrelated, but that's about what I see on heat soaked Porsches and Lamborghinis.

[morswestford]

I just purchased a JR kit and I can't wait to get it. i hope my previous nightmare of a supercharger with broken belts all the time will be a thing of the past.

[Xuningshen]

Originally Posted by CSG Mike

Unrelated, but that's about what I see on heat soaked Porsches and Lamborghinis.

I'm just asking because everything has been going so well on my car something is bound to fail soon lol, like the avcs. I was under the impression for awhile that oil pressure rises linear with our rpm. but I guess thats not the case after heat soaked. thanks

[CSG Mike]

Originally Posted by Xuningshen

I'm just asking because everything has been going so well on my car something is bound to fail soon lol, like the avcs. I was under the impression for awhile that oil pressure rises linear with our rpm. but I guess thats not the case after heat soaked. thanks

Oil pressure typically plateaus, instead of continuing to rise, once you're at full operating temp.

[vagthomas]

Hi guys!

I am thinking of installing Jackson Racing Rotrex, but I seem to be missing some further info that i haven't been able to find in the thread; Based on what i've read, rotrex is considered quite reliable. So the questions are as follows:

- What's Rotrex temp during operation?
- How much boost for 280 bhp with 100 octane gasoline?
- What is the AFR compared to stock car? Is it really even down to 10.94, as found in another thread, at max RPM and max load for the stock car?

[CSG Mike]

Originally Posted by vagthomas

Hi guys!

I am thinking of installing Jackson Racing Rotrex, but I seem to be missing some further info that i haven't been able to find in the thread; Based on what i've read, rotrex is considered quite reliable. So the questions are as follows:

- What's Rotrex temp during operation?
- How much boost for 280 bhp with 100 octane gasoline?
- What is the AFR compared to stock car? Is it really even down to 10.94, as found in another thread, at max RPM and max load for the stock car?

- The supercharger itself?
- the stock pulley will take you to 280bhp on 100 octane gasoline easily; ~9.5 psi (~0.65 bar)
- gasoline AFR stays steady at around 11.5 at WOT (open loop). It depends on the exact fuel blend.

[vagthomas]

Originally Posted by CSG Mike

- The supercharger itself?
- the stock pulley will take you to 280bhp on 100 octane gasoline easily; ~9.5 psi (~0.65 bar)
- gasoline AFR stays steady at around 11.5 at WOT (open loop). It depends on the exact fuel blend.

Thanks a lot for that quick reply!!

- Yes the supercharger itself
- And one more; what is the optimum air inlet temp to get 280 bhp with 11.5 AFR at 0.65 bar?

[Aaronimoe]

C38 JRSC w/ catless uel header - 225whp and peak boost of only 7lbs...
*e-tuned by motoeast. kit was DIY installed


trying to figure out If there is something that isnt right here.. Has anybody ran into issues with that hose popping off under boost? its the hose underneath the intake manifold.. Could that cause an issue like this?

[ScionOfHorus]

I'd check for a leak. Does seem pretty damn low, and PRT is a good shop.



Sent from my MotoE2(4G-LTE) using Tapatalk

[Aaronimoe]

It was actually remote tuned by moto-east. I just used PRT's dyno.

[CSG Mike]

Originally Posted by Aaronimoe

C38 JRSC w/ catless uel header - 225whp and peak boost of only 7lbs...
*e-tuned by motoeast. kit was DIY installed


trying to figure out If there is something that isnt right here.. Has anybody ran into issues with that hose popping off under boost? its the hose underneath the intake manifold.. Could that cause an issue like this?

You're AFR should be much flatter than that.

Your torque stops climbing after 5500 RPM, whereas it should be climbing almost all the way up to the top.

Check for boost leaks. A hose that pops off would be VERY obvious; you may be just leaking boost.

Got a datalog of a pull I can look at?

[Aaronimoe]

Originally Posted by CSG Mike

You're AFR should be much flatter than that.

Your torque stops climbing after 5500 RPM, whereas it should be climbing almost all the way up to the top.

Check for boost leaks. A hose that pops off would be VERY obvious; you may be just leaking boost.

Got a datalog of a pull I can look at?

https://drive.google.com/open?id=0B6...tlT1lPb0F2ZVBF

[Aaronimoe]

Just noticed this silicone tube was barely hanging onto the MAF tube. re-situated the silicone and gave the maf tube some more slack from the other end. I guess it was opening up once there was enough pressure (around ~4500rpm) ?

[CSG Mike]

Originally Posted by Aaronimoe

https://drive.google.com/open?id=0B6...tlT1lPb0F2ZVBF

Your MAF reading is inconsistent over 6000 RPM. Check your piping, placement, and MAF sensor.