Jackson Racing Supercharger Owners Thread

[Xuningshen]

Originally Posted by lastexile1987

So I have my brz in the shop getting my kit installed. Small issues, I bought the kit second hand and it is missing the PVC valve, firewall grommet and the vacuum tee was broken. Any one know if these parts are specifically designed by JR or if an off the shelf one would work?

off the shelf will definitely work. parts are parts, as long they are the same size. I'm sure they bought those specific parts from a manufacturer anyways. the vaccum hose is 4mm. I had a my guy measure it when I bought extra hose. so get a Tee that fits that.

and firewall grommet? nothing goes thru the firewall for install.

[MidnightRunner]

Originally Posted by Xuningshen

and firewall grommet? nothing goes thru the firewall for install.

Probably from where the stock "sound tube" fed into the passenger side firewall.

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[Noob4Life]

Sadly I didn't get the numbers I was hoping for but here's a dyno log I have. I should add that this car still feels amazing and it's definitely fast now!

Mod list on CA 91 oct:
-JRSC
-Omni 3 bar map
-Perrin LW crank pulley
-Rev Works UEL headers
-Nameless 2.5" catted op/fp
-OEM midpipe
-Nameless 3" axleback



That was the average 3rd gear pull. Ended up being about 233whp SAE corrected.



He suggested we do a couple 4th gear pulls as well. These are those. Again about 233whp SAE corrected, IDK why he gave my uncorrected dynos lol

NA dynos:
This dyno is from when I was NA and with a different tuner.
Mod list with CA 91 oct:
-OEM airbox with TRD filter
-Same parts as above



2 runs are with the stock tune and 2 runs are with the new tune.

Any recommendations on getting closer to 280 without switching fuels?

[Raven604]

Better header, Rev works is kinda meh from what I've seen

[Noob4Life]

Originally Posted by Raven604

Better header, Rev works is kinda meh from what I've seen

That's what I've been thinking, was thinking about tomei or JDL but not sure if the extra gains will be worth the price because I still want UEL. You think the nameless 3" midpipe will make a big difference? They claim 12hp FI.

[ATL BRZ]

Originally Posted by Noob4Life

That's what I've been thinking, was thinking about tomei or JDL but not sure if the extra gains will be worth the price because I still want UEL. You think the nameless 3" midpipe will make a big difference? They claim 12hp FI.

Sell your stock midpipe + nameless axleback and get a true 2.5" catback like the Dezod Motorsports catback

3" catback will be way too loud IMO

[ApolloSki]

Originally Posted by ATL BRZ

Sell your stock midpipe + nameless axleback and get a true 2.5" catback like the Dezod Motorsports catback

3" catback will be way too loud IMO

I agree, sell and buy true 2.5! Def agree that 3" will be too loud.

[CSG Mike]

Originally Posted by Noob4Life

Sadly I didn't get the numbers I was hoping for but here's a dyno log I have. I should add that this car still feels amazing and it's definitely fast now!

Mod list on CA 91 oct:
-JRSC
-Omni 3 bar map
-Perrin LW crank pulley
-Rev Works UEL headers
-Nameless 2.5" catted op/fp
-OEM midpipe
-Nameless 3" axleback



That was the average 3rd gear pull. Ended up being about 233whp SAE corrected.



He suggested we do a couple 4th gear pulls as well. These are those. Again about 233whp SAE corrected, IDK why he gave my uncorrected dynos lol

NA dynos:
This dyno is from when I was NA and with a different tuner.
Mod list with CA 91 oct:
-OEM airbox with TRD filter
-Same parts as above



2 runs are with the stock tune and 2 runs are with the new tune.

Any recommendations on getting closer to 280 without switching fuels?

You will make more power with the CARB tune, and stock header, judging from your before/after dynos.

Also, measure those crank pulleys, carefully, with calipers. Perhaps your're making less boost than normal due to a smaller crank pulley (I've seen it before).

[autograph]

hey guys I tried doing a search and didn't find much; what tire size are the folks with the JRSC running with for street use? 225? 235? 245?

[ScionOfHorus]

Originally Posted by autograph

hey guys I tried doing a search and didn't find much; what tire size are the folks with the JRSC running with for street use? 225? 235? 245?

I ran stock ones for 3 months, note I use 245/45 mpss.

[enivid]

Originally Posted by autograph

hey guys I tried doing a search and didn't find much; what tire size are the folks with the JRSC running with for street use? 225? 235? 245?

I run 18 245's for street and 17 225's for track.

[dp1]

Originally Posted by autograph

hey guys I tried doing a search and didn't find much; what tire size are the folks with the JRSC running with for street use? 225? 235? 245?

225/45-17 mpss on 17x8. 225 also fits stock rims just fine. I use UTQG 100 rubber in 235/40-17 for ax/track - this size is less common and usually in stickier rubber.

IMHO anything bigger than 225 for street is for looks but 235/245 works also.

[Lone Starr]

Originally Posted by autograph

hey guys I tried doing a search and didn't find much; what tire size are the folks with the JRSC running with for street use? 225? 235? 245?

225/45/17 rs3 on 17x8 wrx wheels and 5mm spacer, street and track

[CSG Mike]

We run anything from 225 to 255, depending on what we're testing. Compound range from 340TW all seasons to 100TW r-comps.