Jackson Racing SC Kit - C30-94 Rotrex Supercharger High Boost Pulley Release

[CounterSpace Garage]

As you may know already, there has been some hint of a smaller pulley upgrade for the Jackson Racing kit utilizing the Rotrex C30-94 unit. While this information may get lost in the Owner's Thread, we decided this information should be its own separate post. The rumors are true and Jackson Racing has finally released their smaller/high boost pulley option for the Jackson Racing Supercharger kit!


Jackson Racing High Boost Pulley!



The JRSC Rotrex C30-94 unit uses a pulley sized accordingly to work well with pump gas (91 ACN). With the high boost pulley upgrade, proper fuel upgrades and hardware are required to handle the additional potential safely and efficiently. This pulley is NOT recommended to those unwilling to go the extra step to tune for higher octane/alcohol fuel and proper hardware to handle the additional requirements.

Jackson Racing product description:

Raise your FR-S/BRZ Supercharger System to new heights with the High Boost Pulley. Designed specifically for the Jackson Racing supercharger System. This pulled is NOT designed to be plug-n-play on a Factory Tuned System and it is NOT CARB legal**.

The High Boost Pulley REQUIRES:

• Upgraded Fuel Injectors

• Upgraded Fuel Pump

• 93+ Octane or E85 Custom Tuning

* Boost levels dependent on vehicle environment and vehicle modifications.
** This product is intended for off-road, racing use only. This product is not to be used on pollution controlled highways.

@SPCorBUST Dyno chart of his JRSC + HB Pulley setup on full bolt-ons + E85. Dyno performed at Church Automotive's Dynapack. Average baseline reading with new SAE calibration is 165-166HP on this dyno.




Have a question whether or not this pulley is for you and your Jackson Racing rotrex setup? Please do not hesitate to contact us or Jackson Racing regarding the high boost pulley option!

[Decay107]

How much does this overspin the blower? Thought JR was pretty close to the manufacturer's maximum recommended rotational speed with the stock pulley.

This a track capable setup that won't eat superchargers as a consumable or a glory pull #lookatmydynonumbersoninstagram setup?

[CSG Mike]

Originally Posted by Decay107

How much does this overspin the blower? Thought JR was pretty close to the manufacturer's maximum recommended rotational speed with the stock pulley.

This a track capable setup that won't eat superchargers as a consumable or a glory pull #lookatmydynonumbersoninstagram setup?

The kit uses about 86% in CARB exempt form. This pulley takes it to 95%.

[JDMChris]

Originally Posted by Decay107

How much does this overspin the blower? Thought JR was pretty close to the manufacturer's maximum recommended rotational speed with the stock pulley.

This a track capable setup that won't eat superchargers as a consumable or a glory pull #lookatmydynonumbersoninstagram setup?

I think you may have misunderstood. The supercharger isn't at its limit with the Factory Tuned System, The Fuel system is at its limit. The high boost pulley now puts the supercharger spinning closer to its limit, and the need for Fuel System upgrades becomes apparent.

[Decay107]

I was indeed speaking of the blower itself.

The search system here sucks, and thus I cannot dig up the specific post in the specific thread. But there was a comparison early on in one of the KW vs JR threads that showed both spinning in the 90,000+ RPM range at the factory redline.

Edit: found it

Originally Posted by CSG Mike

Stock kits:
JR impeller speed @7400: 7400x1.29x9.49 = 90,591 rpm = 90.6% rated capacity
KW impeller speed @7800: 7800x1.33x9.49 = 98,696 rpm (KW's tune redlines at 7800) = 98.7% rated capacity
Vortech impeller speed @7400 : 41,588 rpm = 83.2% rated capacity

Kits as pictured in graphs:
Jackson Racing: 90.6% - 90,591 rpm (100k max)
Kraftwerks: 93.4% - 93,401 rpm (100k max)
Vortech: 86.0% - 43,022 rpm (50k max)

Mike 86% or 90.6? Either way, looks to come in just under the max impeller speed

[autograph]

what i want to know is how long will the fa20 last at these power levels lol.. damnit mike. now i have to starting saving my pennies again for a clutch, fuel pump, injectors and this.. and a money reserve if i blow the engine lmao

[Alltezza]

Damnit Mike over at CSG got me excited as fck about that Edelbrock E-force SC and then THIS is announced I don't even know what I want anymore........

[CSG Mike]

Originally Posted by Decay107

I was indeed speaking of the blower itself.

The search system here sucks, and thus I cannot dig up the specific post in the specific thread. But there was a comparison early on in one of the KW vs JR threads that showed both spinning in the 90,000+ RPM range at the factory redline.

Edit: found it



Mike 86% or 90.6? Either way, looks to come in just under the max impeller speed

84-88% counting for deformation, elasticity, and expected slip (normal for any serpentine/ribbed belt system), but 90.6% if you have a theoretically rigid system.

[CSG Mike]

Originally Posted by Alltezza

Damnit Mike over at CSG got me excited as fck about that Edelbrock E-force SC and then THIS is announced I don't even know what I want anymore........

Oops

It just means you need boost ASAP.

[campy]

Any idea on what we should expect for 93oct tunes?

[CSG Mike]

Originally Posted by campy

Any idea on what we should expect for 93oct tunes?

+20-40, depend on supporting modifications.

Remember, supporting modifications are MANDATORY.

[ScionOfHorus]

OK, so let me guesstimate on prices to go high boost...

$140 bigger pulley
$150-200 fuel pump
$300-400 700+ CC injectors
$50-200 retune
$700 flex fuel kit
$600-1000 clutch

So real cost is about $2000-2200 for me to add on another ~100 hp. Hmmm...

Sent from my XT1095 using Tapatalk

[CSG Mike]

Originally Posted by ScionOfHorus

OK, so let me guesstimate on prices to go high boost...

$140 bigger pulley
$150-200 fuel pump
$300-400 700+ CC injectors
$50-200 retune
$700 flex fuel kit
$600-1000 clutch

So real cost is about $2000-2200 for me to add on another ~100 hp. Hmmm...

Sent from my XT1095 using Tapatalk

Half the price for the same gain over again...

CSG has some packages that will be put together to support the extra boost!

[ScionOfHorus]

Originally Posted by CSG Mike

Half the price for the same gain over again...

CSG has some packages that will be put together to support the extra boost!

Ooooh. Post something when you do.

But my next mod is bbk, and I'm just waiting until I have the money saved. Current ETA is October 1st, just in time for my birthday

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