Topgunz ROTREX C38R Supercharger Kit

SeeThruHead · 10-01-2021, 05:16 PM

Do you have numbers for 91/94. we don't have any E-anything in ontario.

turtle64b · 10-01-2021, 05:21 PM

Quote:

Originally Posted by SeeThruHead

Do you have numbers for 91/94. we don't have any E-anything in ontario.

From Birdie's post earlier:
I hit 464 whp and 406 torque on pump at 9.5 psi

SeeThruHead · 10-01-2021, 05:23 PM

yeah wondering more how much psi is safe on pump. before you'd expect knocking i guess.

Like what could i realistically expect from this kit. on pump. i guess good safe numbers for stock internals would be helpful. also interested in what it could do with a built motor and 94 octane. if that makes sense.

turtle64b · 10-01-2021, 05:26 PM

Quote:

Originally Posted by SeeThruHead

yeah wondering more how much psi is safe on pump. before you'd expect knocking i guess.

You would need to work with your tuner on that. There are more variables to consider. How much fuel are you able to provide? It's not really the pressure that will cause knock, its timing and running out of fuel for the amount of air (pressure) that you're shoving into the engine.

I'm at about 14-15psi on my V1 topgunz setup with no issues.

Stock internals record is like 800hp, I think. Reliably, maybe 650? Depending on your tranny, wtq is gonna be the killer. <425-450wtq is where you wanna be WITH a tranny cooler for us 7AT guys.

TopgunZ · 10-23-2021, 09:44 PM

Update... 802whp on the Rotrex kit!

TopgunZ · 10-26-2021, 02:34 PM

Another update...

370Z Supercharger 1/4 mile RECORD!! 10.3 @138mph

https://dynosty.com/we-accidentally-...4-mile-record/

BTW...the car also made 600wtq.

SeeThruHead · 10-26-2021, 05:10 PM

Quote:

Originally Posted by turtle64b

You would need to work with your tuner on that. There are more variables to consider. How much fuel are you able to provide? It's not really the pressure that will cause knock, its timing and running out of fuel for the amount of air (pressure) that you're shoving into the engine.

I'm at about 14-15psi on my V1 topgunz setup with no issues.

Stock internals record is like 800hp, I think. Reliably, maybe 650? Depending on your tranny, wtq is gonna be the killer. <425-450wtq is where you wanna be WITH a tranny cooler for us 7AT guys.

yeah i mean assuming other variables are sorted.

My plan is the radium surge tank with new fuel lines and fuel rails. Should be able to put as much fuel as any kit needs.

TopgunZ · 10-26-2021, 07:18 PM

Quote:

Originally Posted by SeeThruHead

yeah i mean assuming other variables are sorted.

My plan is the radium surge tank with new fuel lines and fuel rails. Should be able to put as much fuel as any kit needs.

What kit are you planning on running?

SeeThruHead · 10-26-2021, 10:20 PM

Quote:

Originally Posted by TopgunZ

What kit are you planning on running?

Your kit hopefully!

if you meant fuel setup.

( Click to show/hide )

redondoaveb · 10-26-2021, 10:24 PM

Quote:

Originally Posted by SeeThruHead

Your kit!

if you meant fuel setup.

Fuel Hanger Surge Tank, Nissan 370Z
not sure which pump setup yet
With either CJM fuel rails or radium fuel rails.
New fuel line from the tank to the rails, just because.
Injector dynamics ID F750 fuel filter.
and probably some id1000 injectors.

Not sure what kind of power you're planning on making but you may want to think about 1300cc injectors. You can run out of injector real quick with 1000cc

SeeThruHead · 10-26-2021, 10:32 PM

Quote:

Originally Posted by redondoaveb

Not sure what kind of power you're planning on making but you may want to think about 1300cc injectors. You can run out of injector real quick with 1000cc

i'd like 650WHP on pump gas. worried about the already high compression ratio of the vq37. was thinking that's relatively conservative numers these days on this platform but would definitely step up the injector if necessary.

redondoaveb · 10-26-2021, 10:38 PM

Quote:

Originally Posted by SeeThruHead

i'd like 650WHP on pump gas. worried about the already high compression ratio of the vq37. was thinking that's relatively conservative numers these days on this platform but would definitely step up the injector if necessary.

What octane do you have there? 650 on pump might be out of reach. I had 1050 injectors and a single walbro 450 running e85 and my injector duty cycle was at 125% at 650whp. I had to go with 1300cc's and twin pumps

SeeThruHead · 10-26-2021, 11:21 PM

Quote:

Originally Posted by redondoaveb

What octane do you have there? 650 on pump might be out of reach. I had 1050 injectors and a single walbro 450 running e85 and my injector duty cycle was at 125% at 650whp. I had to go with 1300cc's and twin pumps

Just 94 at certain pumps. 91 everywhere else.

HapaZ · 10-26-2021, 11:35 PM

Quote:

Originally Posted by redondoaveb

What octane do you have there? 650 on pump might be out of reach. I had 1050 injectors and a single walbro 450 running e85 and my injector duty cycle was at 125% at 650whp. I had to go with 1300cc's and twin pumps

What pumps did you go with? I'm considering a TI automotive brushless pump and wondering if one will do for around 650whp on e85.

redondoaveb · 10-27-2021, 12:28 AM

Quote:

Originally Posted by SeeThruHead

Just 94 at certain pumps. 91 everywhere else.

91 might be pushing it. 94 should be doable

10-01-2021, 05:16 PM	#301 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23499	Do you have numbers for 91/94. we don't have any E-anything in ontario. __________________ My Build thread STH Build Plan Thread Images too big fix here

10-01-2021, 05:23 PM	#303 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23499	yeah wondering more how much psi is safe on pump. before you'd expect knocking i guess. Like what could i realistically expect from this kit. on pump. i guess good safe numbers for stock internals would be helpful. also interested in what it could do with a built motor and 94 octane. if that makes sense. __________________ My Build thread STH Build Plan Thread Images too big fix here

10-23-2021, 09:44 PM	#305 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Update... 802whp on the Rotrex kit! Rusty, Anhhuy88, ZontheRocks and 2 others like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

10-26-2021, 02:34 PM	#306 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Another update... 370Z Supercharger 1/4 mile RECORD!! 10.3 @138mph https://dynosty.com/we-accidentally-...4-mile-record/ BTW...the car also made 600wtq. scratchdvinyl, Rusty, Elmo370z and 3 others like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
New Rotrex C38R Supercharger	R3drckt09	Forced Induction	145	02-05-2023 08:37 AM
rotrex c38r spec sheet	tiller	Forced Induction	11	09-13-2018 11:57 AM
Rotrex C38R & are HR/VHR GTM SC mounting brackets the same?	SS_Firehawk	Engine & Drivetrain	6	02-09-2018 10:33 PM
Replacement Rotrex Supercharger for the GTM Stage 1 kit	wind.zero	Forced Induction	29	06-03-2014 06:20 AM
[FOR SALE] Rotrex C38-81 Supercharger Only	pokeyl	Parts for sale (Private Classifieds)	3	02-17-2014 09:07 AM

***Topgunz ROTREX C38R Supercharger Kit***

Topgunz ROTREX C38R Supercharger Kit