Topgunz ROTREX C38R Supercharger Kit

TopgunZ · 09-30-2021, 05:22 PM

Quote:

Originally Posted by Averying

Wow. At 10 psi this kit is making 70 more whp and 50 more wtq at 10 psi than my GTM stage 1 kit running similar boost. Awesome stuff.

What’d be the biggest reason for this? More efficient air flow/temps from the upgrade blower and intercooler?

Sent from my iPhone using Tapatalk

The reason is two fold. The intercooler is definitely a much more efficient cooler and the other reason, the more pronounced reason, is the way we set up the boost blow off. This thing ramps boost in much quicker than any other kit since we spin the blower up faster but then dump the excess. This basically just shifts everything to the left on the graph.

turtle64b · 10-01-2021, 05:00 PM

Hey, I wanted to ask what injectors/pump combo was on when injector duty cycle hit 107%.

I also wanted to see where people are putting the SC oil cooler if the normal real estate is taken. I have power steering and tranny coolers stacked on the pass side and a 34 row oil cooler on the drivers side...

Hopefully I'll be able to join the ranks soon!

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.

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 )

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.

FX-32 · 10-28-2021, 05:40 AM

It's easy to determine if you need bigger injectors by looking at it's duty cycle, but my question is, How can you determine you need to upgrade fuel rails? I mean what values should I look at to know that the rails are at top capacity?

Ghostvette · 10-28-2021, 07:56 AM

Quote:

Originally Posted by FX-32

It's easy to determine if you need bigger injectors by looking at it's duty cycle, but my question is, How can you determine you need to upgrade fuel rails? I mean what values should I look at to know that the rails are at top capacity?

Think of it this way; bigger rails, more fuel, probably lower duty cycle on the injectors. 3" fire hose puts out a fire faster than a 3/4" one.

SeeThruHead · 10-28-2021, 08:57 PM

Blog Post Radium's Ultimate Fuel Pump Test

this is a pretty good explainer on how to pick your pumps

you can see that the brushless pump (BKS1000) provides the most flow. more than enough for anything on this platform afaik. even at a high boost of 25 psi (assuming your build can even stand that) the BKS1000 needs to output around 80 psi (55 + 25) and will still flow 550lph and only draw 12 amps

HapaZ · 10-28-2021, 09:09 PM

Quote:

Originally Posted by SeeThruHead

Blog Post Radium's Ultimate Fuel Pump Test

this is a pretty good explainer on how to pick your pumps

you can see that the brushless pump (BKS1000) provides the most flow. more than enough for anything on this platform afaik. even at a high boost of 25 psi (assuming your build can even stand that) the BKS1000 needs to output around 80 psi (55 + 25) and will still flow 550lph and only draw 12 amps

Yeah that’s a good resource for sure. There’s also a blog post about ID creating a controller specifically for that pump that puts out crazy flow as well. It’s funny that brushless motors have been in a ton of applications for years and they seem to just be hitting the fuel pump market. My Ryobi impact drill from like 6 years ago is a brushless unit, for instance.

10-01-2021, 05:16 PM	#3 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	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	#5 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	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	#10 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Update... 802whp on the Rotrex kit! __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

10-26-2021, 02:34 PM	#11 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	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. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

10-28-2021, 08:57 PM	#14 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	Blog Post Radium's Ultimate Fuel Pump Test this is a pretty good explainer on how to pick your pumps you can see that the brushless pump (BKS1000) provides the most flow. more than enough for anything on this platform afaik. even at a high boost of 25 psi (assuming your build can even stand that) the BKS1000 needs to output around 80 psi (55 + 25) and will still flow 550lph and only draw 12 amps __________________ My Build thread STH Build Plan Thread Images too big fix here Last edited by SeeThruHead; 10-28-2021 at 09:04 PM.

10-01-2021, 05:00 PM	#2 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3366	Hey, I wanted to ask what injectors/pump combo was on when injector duty cycle hit 107%. I also wanted to see where people are putting the SC oil cooler if the normal real estate is taken. I have power steering and tranny coolers stacked on the pass side and a 34 row oil cooler on the drivers side... Hopefully I'll be able to join the ranks soon!

10-28-2021, 05:40 AM	#12 (permalink)
FX-32 Base Member Join Date: Apr 2021 Location: ATL Posts: 21 Drives: G37s Coupe 6MT ACE Rep Power: 3360	It's easy to determine if you need bigger injectors by looking at it's duty cycle, but my question is, How can you determine you need to upgrade fuel rails? I mean what values should I look at to know that the rails are at top capacity?

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***Topgunz ROTREX C38R Supercharger Kit***

Topgunz ROTREX C38R Supercharger Kit