Topgunz ROTREX C38R Supercharger Kit

TopgunZ · 03-04-2021, 08:10 AM

I dont want to put pre-drawn conclusions on the whp this kit will make. 800whp is a very high number. That is almost 1000bhp. Either way this kit is going to put a lot of guys in the "need a built motor" area if they want to maximize the kit and also have a reliable setup. However for guys that want modest power and not place the stock engine at its limits then we have options for that also. This is why we are offering the kit with a boost control option. It allows the user to chose when they want to really put power down and adjust it back for daily. Auto transmission guys will benefit from this immensely. Also, a benefit is that it will shift the curve to the left of the graph where we will notice higher power and torque lower in the RPM band which makes the car...faster.

Again, the goals are that we will offer the highest horsepower, out of the box supercharger kit available and we have seen the ACE kit making 650whp on E85. Also, this is the only high horsepower kit that will offer a full filter setup while minimizing power loss.

We are going to dyno the kit with just a turbo guard on the first few pulls to see its potential and then put the intake and filter on and see how much we make. I am guessing it will be around 2psi loss but I am hoping that at even a loss like that it will still make more power with filtered air then all these other SC cars with no filter at all.

RumbleFish · 03-04-2021, 12:11 PM

Peabo · 03-06-2021, 09:00 PM

Quote:
How will the "Optional On the fly boost control (In cabin)" work?

Probably a wastegate and ecutek boost controller

Why can't we do this with the ACE Kit?

redondoaveb · 03-06-2021, 09:11 PM

Quote:

Originally Posted by Peabo

Quote:
How will the "Optional On the fly boost control (In cabin)" work?

Probably a wastegate and ecutek boost controller

Why can't we do this with the ACE Kit?

You can. I've been running a wastegate and electronic boost controller for a few years

TopgunZ · 03-06-2021, 09:27 PM

Patrick, I remember about 3 years back when I explained to you how to set that up. However, I have a new technique which modifys the BPV to achieve the same result without the added cost of a WG.

Engineering win! I'm sure it will be copied soon after.. again. But it will still benefit the community.

redondoaveb · 03-06-2021, 09:56 PM

Quote:

Originally Posted by TopgunZ

Patrick, I remember about 3 years back when I explained to you how to set that up. However, I have a new technique which modifys the BPV to achieve the same result without the added cost of a WG.

Engineering win! I'm sure it will be copied soon after.. again. But it will still benefit the community.

I remember it very well also. For my application, probably the best sc mod I did. Thanks for the help on that.

Your new technique sounds interesting. And of course it will be copied, just like the wastegate set up has. Actually, I'm surprised more haven't done the wastegate.

TopgunZ · 03-06-2021, 10:11 PM

Quote:

Originally Posted by redondoaveb

I remember it very well also. For my application, probably the best sc mod I did. Thanks for the help on that.

Your new technique sounds interesting. And of course it will be copied, just like the wastegate set up has. Actually, I'm surprised more haven't done the wastegate.

You haven't seen the WG option because the current mainstream setups can't produce enough boost to take advantage of those mechanics.

Enter the C38R-112...gives us a better reason.

redondoaveb · 03-06-2021, 10:27 PM

Quote:

Originally Posted by TopgunZ

You haven't seen the WG option because the current mainstream setups can't produce enough boost to take advantage of those mechanics.

Enter the C38R-112...gives us a better reason.

The Vortech V3 just can't handle being overspun to be able to produce that kind of boost. I like the V2 but when we couldn't get the Ti to make the power it should have been capable of and the lack of support from Vortech, I've decided to go tt's instead. Of course I made that decision prior to you releasing the info on the Rotrex kit.

Elmo370z · 03-07-2021, 12:44 AM

Quote:

Originally Posted by redondoaveb

The Vortech V3 just can't handle being overspun to be able to produce that kind of boost. I like the V2 but when we couldn't get the Ti to make the power it should have been capable of and the lack of support from Vortech, I've decided to go tt's instead. Of course I made that decision prior to you releasing the info on the Rotrex kit.

Well I could of told you to wait

redondoaveb · 03-07-2021, 10:15 AM

Quote:

Originally Posted by Elmo370z

Well I could of told you to wait

Wait for a blower that hasn't as of yet proven to make power on our cars?

theDreamer · 03-08-2021, 09:24 AM

Quote:

Originally Posted by redondoaveb

Wait for a blower that hasn't as of yet proven to make power on our cars?

It has been proven, the Rotrex units have been used since the early days of the 370z, it went away went GTM failed & Sam passed away. Check the FI finished builds and you can see the GTM kits, just remember most of those are when we thought 500HP was max and the SC was the safe bet.

The C38R is the similar housing size of the GTM but turned up to 11, we have limited engine bay space so the larger Rotrex units are difficult to fit (GTM stage 2 tried but saw minimal improvements).

redondoaveb · 03-08-2021, 10:16 AM

Quote:

Originally Posted by theDreamer

It has been proven, the Rotrex units have been used since the early days of the 370z, it went away went GTM failed & Sam passed away. Check the FI finished builds and you can see the GTM kits, just remember most of those are when we thought 500HP was max and the SC was the safe bet.

The C38R is the similar housing size of the GTM but turned up to 11, we have limited engine bay space so the larger Rotrex units are difficult to fit (GTM stage 2 tried but saw minimal improvements).

I guess I should have worded it differently. I should have said "big" power. Both my V3 Si and V2 Si made 680whp. I have confidence in Aaron and I don't think he would be developing the rotrex kit unless he knew of the capabilities. And Elmo said that he could have told me to wait. The problem is, I don't think he knew Aaron had a kit in development. I know Aaron well and he didn't even tell me what was in the works. Had I known, I may have dumped my Vortech kit and gone with the Rotrex but I decided to dump the Vortech and am going with FI tt's.

TopgunZ · 03-08-2021, 10:19 AM

I think he meant that nobody has ran the C38R to see what it is capable of compared to the V3 Si which is used on 99% of the new supercharger builds.

Also, the older GTM rotrex kits were designed completely different from what we are doing here.

Elmo370z · 03-08-2021, 10:51 AM

Quote:

Originally Posted by redondoaveb

Wait for a blower that hasn't as of yet proven to make power on our cars?

Correct!. It will make
Power

theDreamer · 03-08-2021, 12:33 PM

Quote:

Originally Posted by TopgunZ

I think he meant that nobody has ran the C38R to see what it is capable of compared to the V3 Si which is used on 99% of the new supercharger builds.

Also, the older GTM rotrex kits were designed completely different from what we are doing here.

I will be curious how you are going to be ‘completely’ different, mounting a SC with a belt and running pipe in our engine bay is very limited. Even with most TT kits the design is fairly similar you really just get option between turbo type & intercooler. The big changes come in fuel delivery, tuning, and engine build.

I think the 350z guys got the C38R into a few builds and saw some fairly positive builds, I think with the 370z you either had the GTM kit already and not much sense in an upgrade or waiting to see if someone builds a new kit with Rotrex.

Overall this should do wonders for the 370z FI folks, now we have a real viable SC option with some modern updates, with plenty of TT, and of course BP for T.

03-04-2021, 08:10 AM	#31 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	I dont want to put pre-drawn conclusions on the whp this kit will make. 800whp is a very high number. That is almost 1000bhp. Either way this kit is going to put a lot of guys in the "need a built motor" area if they want to maximize the kit and also have a reliable setup. However for guys that want modest power and not place the stock engine at its limits then we have options for that also. This is why we are offering the kit with a boost control option. It allows the user to chose when they want to really put power down and adjust it back for daily. Auto transmission guys will benefit from this immensely. Also, a benefit is that it will shift the curve to the left of the graph where we will notice higher power and torque lower in the RPM band which makes the car...faster. Again, the goals are that we will offer the highest horsepower, out of the box supercharger kit available and we have seen the ACE kit making 650whp on E85. Also, this is the only high horsepower kit that will offer a full filter setup while minimizing power loss. We are going to dyno the kit with just a turbo guard on the first few pulls to see its potential and then put the intake and filter on and see how much we make. I am guessing it will be around 2psi loss but I am hoping that at even a loss like that it will still make more power with filtered air then all these other SC cars with no filter at all. Rusty, RumbleFish, sx moneypit and 4 others like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM Last edited by TopgunZ; 03-04-2021 at 08:15 AM.

03-04-2021, 12:11 PM	#32 (permalink)
RumbleFish Premium Member Join Date: Oct 2013 Location: Los Feliz, Ca. Posts: 1,212 Drives: '10-Sport-M6 Rep Power: 8240	__________________ How far, this...Utopia? F.I. CBE V2/Stillen G3 CAI/GTM 25R OC/EcuTek tune (Specialty Z)/ KW V3's/Stillen Sway bars/SPC rear camber kit/Z1 FUCA/Mich. PSS4S 255/35-295/30

03-06-2021, 09:00 PM	#33 (permalink)
Peabo Base Member Join Date: Jan 2020 Location: Chicago Posts: 19 Drives: 370z Nismo ACE SupCh Rep Power: 5	Quote: How will the "Optional On the fly boost control (In cabin)" work? Probably a wastegate and ecutek boost controller Why can't we do this with the ACE Kit? Last edited by Peabo; 03-06-2021 at 09:03 PM.

03-06-2021, 09:27 PM	#35 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	Patrick, I remember about 3 years back when I explained to you how to set that up. However, I have a new technique which modifys the BPV to achieve the same result without the added cost of a WG. Engineering win! I'm sure it will be copied soon after.. again. But it will still benefit the community. Elmo370z, ZontheRocks, redondoaveb and 1 others like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

03-08-2021, 10:19 AM	#43 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	I think he meant that nobody has ran the C38R to see what it is capable of compared to the V3 Si which is used on 99% of the new supercharger builds. Also, the older GTM rotrex kits were designed completely different from what we are doing here. Elmo370z and redondoaveb like this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

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***Topgunz ROTREX C38R Supercharger Kit***

Topgunz ROTREX C38R Supercharger Kit