Topgunz full supercharger kits!!

Senna-F1 · 04-03-2019, 10:37 PM

Quote:

Originally Posted by Dahawkster

Sorry to go alittle off topic but does anybody have any pump gas 1/4 miles times with this kit?

I haven't seen any, but a 1/4 time from any Z with similar HP would be the same. 500 HP = 500 HP, regardless of how, or even where in the rev range, it's made. The tires couldn't care less where or how the power is made.

Some people around here will tell you a positive displacement supercharger like the one from RJM will be faster, even if the HP is the same because it has better low-end torque. Complete nonsense. Any 500 HP car has MORE than enough power to break traction from a dig. The key is modulating the power and having more of it down low, in 1st gear, just makes that task more difficult! Once you get to that 6000-7500 RPM range, where all of the racing is done, it's all the same. 500 = 500.

Dahawkster · 04-04-2019, 03:26 AM

Does anybody have any 1/4 times non pump gas then? I only see one guy from Guam running 12.7s. I would be pretty bummed to spend $7-$8k to supercharge my Z and be stuck doing high 12s only. If i seen people cracking low and mid 11s I would of bought this along time ago. I've been waiting for people to post there time slips with this kit but I haven't really found any yet..

Senna-F1 · 04-04-2019, 09:25 AM

Quote:

Originally Posted by Dahawkster

Does anybody have any 1/4 times non pump gas then? I only see one guy from Guam running 12.7s. I would be pretty bummed to spend $7-$8k to supercharge my Z and be stuck doing high 12s only. If i seen people cracking low and mid 11s I would of bought this along time ago. I've been waiting for people to post there time slips with this kit but I haven't really found any yet..

I dont think you understood my answer, but I hope you find what you're looking for. Be sure to post some links if you find it.

Senna-F1 · 04-04-2019, 05:19 PM

Is this the guy you are talking about? He’s *not* running this kit, and his car is not tuned. A stillen 370z with their tune sometimes makes no more than a full bolt-on 370z.

https://youtu.be/tsK4pRrGIhY

Fast Intentions went 12.4 then 11.4 with the same car. Like I said it’s all in the launch and controlling the power. They did this on only 8 lbs of boost on their turbo kit.

https://youtu.be/cO7E520G7cE

redondoaveb · 04-04-2019, 05:40 PM

Here's Evan's running an 11.6. If I'm not mistaken, that was on 12 psi.
https://youtu.be/XQYSbDl4SOU

TopgunZ · 04-05-2019, 10:52 AM

Your belt could be too tight. Back it off some.

Dahawkster · 04-06-2019, 12:19 AM

So I have just a couple more questions please. I am really thinking about picking this up but I am just very unfamiliar with superchargers sorry.

What PSI pulley does this kit come with? I am assuming 10 but not sure and will anybody be able to tell me whats the highest amount of boost you've ran on pump gas safely?

If you where running say a 14psi pulley are you able to hook up an electric boost controller to run less boost if you wanted to for daily driving?

What would be the smallest/high boost pulley this kit would be able to run efficiently?

Reasons I ask these questions is because I would like to run lower boost on 91 octane but be able to up the boost from in the car and run as much as I can with
water/methanol injection and tuning of course safely...

redondoaveb · 04-06-2019, 09:26 AM

Quote:

Originally Posted by Dahawkster

So I have just a couple more questions please. I am really thinking about picking this up but I am just very unfamiliar with superchargers sorry.

What PSI pulley does this kit come with? I am assuming 10 but not sure and will anybody be able to tell me whats the highest amount of boost you've ran on pump gas safely?

If you where running say a 14psi pulley are you able to hook up an electric boost controller to run less boost if you wanted to for daily driving?

What would be the smallest/high boost pulley this kit would be able to run efficiently?

Reasons I ask these questions is because I would like to run lower boost on 91 octane but be able to up the boost from in the car and run as much as I can with
water/methanol injection and tuning of course safely...

The kit comes with the 9lb pulley on the serpentine side which should give you around 10 psi.
I was able to run close to 13 psi on 91 octane before I started getting knock.
I controlled boost using a 38mm wastegate and ebc. I was running e85 and 91 octane. I set the boost controller to open the wastegate at 12 psi when on my 91 tune snd stay closed on e85 tune. Or, if I turned the boost controller off, the wategate would open at spring pressure of 10 psi for daily driving on either 91 or e85.

Dahawkster · 04-06-2019, 06:34 PM

Quote:

Originally Posted by redondoaveb

I controlled boost using a 38mm wastegate and ebc.

thank you redondoaveb for the reply I really appreciate your help....So you actually installed a wastegate on the charge pipes

or are you just referring to the Tial QRJ that comes in the kit?

redondoaveb · 04-06-2019, 08:19 PM

Here's a pic

redondoaveb · 04-06-2019, 08:24 PM

Four different boost settings.

Senna-F1 · 04-06-2019, 12:57 AM

I’ll just mention this since it may not be apparent. Boost with a centrifugal supercharger, like the one in this kit, is directly related to RPMs. Boost rises in a linear fashion as revs increase. With a “15 psi pulley” you will only hit maximum boost at redline, typically 7500 RPM. So you may for example only be at 12 PSI at 6500 RPM. So you can control boost by controlling RPM and shifting early.

It sounds like you would have 2 maps. One with meth injection and one without. You could just get a high boost pulley and then have your non meth tune with a redline of say 6500, which would keep your boost below max. Your meth tune would rev to 7500 and give you full boost. No other form of boost control needed.

These number are theoretical examples, not actual real world numbers.

Sent from my iPhone using Tapatalk

TopgunZ · 04-08-2019, 09:29 AM

It depends on how restrictive it is before any damage would occur. Turbos create a lot of backpressure and guys are running higher boost. Thats the nice thing about a SC over turbo, you dont have to worry about adding backpressure.

Its pretty simple really. The more air you can get in and out of the engine the more power you will make.

redondoaveb · 04-08-2019, 10:28 AM

Quote:

Originally Posted by TopgunZ

It depends on how restrictive it is before any damage would occur. Turbos create a lot of backpressure and guys are running higher boost. Thats the nice thing about a SC over turbo, you dont have to worry about adding backpressure.

Its pretty simple really. The more air you can get in and out of the engine the more power you will make.

"Volumetric Efficiency"

"Z"en · 04-08-2019, 10:32 AM

Quote:

Originally Posted by redondoaveb

"Volumetric Efficiency"

You get me

04-04-2019, 05:19 PM	#4 (permalink)
Senna-F1 Enthusiast Member Join Date: Jun 2016 Location: Cary, NC Age: 54 Posts: 425 Drives: 370SC,EliseSC,MR2T Rep Power: 51	Is this the guy you are talking about? He’s not running this kit, and his car is not tuned. A stillen 370z with their tune sometimes makes no more than a full bolt-on 370z. https://youtu.be/tsK4pRrGIhY Fast Intentions went 12.4 then 11.4 with the same car. Like I said it’s all in the launch and controlling the power. They did this on only 8 lbs of boost on their turbo kit. https://youtu.be/cO7E520G7cE Last edited by Senna-F1; 04-04-2019 at 05:37 PM.

04-04-2019, 05:40 PM	#5 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,382 Drives: 2014 Nismo Gunmetal Rep Power: 2684375	Here's Evan's running an 11.6. If I'm not mistaken, that was on 12 psi. https://youtu.be/XQYSbDl4SOU __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 750whp/700ft.lbs Last edited by redondoaveb; 04-04-2019 at 06:04 PM.

04-05-2019, 10:52 AM	#6 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Your belt could be too tight. Back it off some. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

04-06-2019, 12:57 AM	#12 (permalink)
Senna-F1 Enthusiast Member Join Date: Jun 2016 Location: Cary, NC Age: 54 Posts: 425 Drives: 370SC,EliseSC,MR2T Rep Power: 51	I’ll just mention this since it may not be apparent. Boost with a centrifugal supercharger, like the one in this kit, is directly related to RPMs. Boost rises in a linear fashion as revs increase. With a “15 psi pulley” you will only hit maximum boost at redline, typically 7500 RPM. So you may for example only be at 12 PSI at 6500 RPM. So you can control boost by controlling RPM and shifting early. It sounds like you would have 2 maps. One with meth injection and one without. You could just get a high boost pulley and then have your non meth tune with a redline of say 6500, which would keep your boost below max. Your meth tune would rev to 7500 and give you full boost. No other form of boost control needed. These number are theoretical examples, not actual real world numbers. Sent from my iPhone using Tapatalk __________________ 618 WHP.452 WTQ.4" Python Intake.15 psi.e50.Topgunz SC.SOHO Tune.S1SE.STG 4 Clutch.Motordyne LTH/Test Pipes/Exhaust.485 Pump.1050x

04-08-2019, 09:29 AM	#13 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	It depends on how restrictive it is before any damage would occur. Turbos create a lot of backpressure and guys are running higher boost. Thats the nice thing about a SC over turbo, you dont have to worry about adding backpressure. Its pretty simple really. The more air you can get in and out of the engine the more power you will make. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

04-04-2019, 03:26 AM	#2 (permalink)
Dahawkster Base Member Join Date: May 2015 Location: Hawaii Posts: 71 Drives: 09 370z 6sp sprt pkg Rep Power: 11	Does anybody have any 1/4 times non pump gas then? I only see one guy from Guam running 12.7s. I would be pretty bummed to spend $7-$8k to supercharge my Z and be stuck doing high 12s only. If i seen people cracking low and mid 11s I would of bought this along time ago. I've been waiting for people to post there time slips with this kit but I haven't really found any yet..

04-06-2019, 12:19 AM	#7 (permalink)
Dahawkster Base Member Join Date: May 2015 Location: Hawaii Posts: 71 Drives: 09 370z 6sp sprt pkg Rep Power: 11	So I have just a couple more questions please. I am really thinking about picking this up but I am just very unfamiliar with superchargers sorry. What PSI pulley does this kit come with? I am assuming 10 but not sure and will anybody be able to tell me whats the highest amount of boost you've ran on pump gas safely? If you where running say a 14psi pulley are you able to hook up an electric boost controller to run less boost if you wanted to for daily driving? What would be the smallest/high boost pulley this kit would be able to run efficiently? Reasons I ask these questions is because I would like to run lower boost on 91 octane but be able to up the boost from in the car and run as much as I can with water/methanol injection and tuning of course safely...

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