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***Topgunz ROTREX C38R Supercharger Kit***

I'm not sure i understand what the distinction is in practical use? So if you can bleed off charged air pressure. and you can control this electronically. Why can't it

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Old 08-06-2021, 05:34 PM   #1 (permalink)
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I'm not sure i understand what the distinction is in practical use?
So if you can bleed off charged air pressure. and you can control this electronically.
Why can't it be used to limit boost pressure per gear? Does the valve not respond to control via the solenoid with the same speed that a wastegate would?

When you say that the kit's boost is controllable via solenoid that suggest to me anything that can control a solenoid (like ecutek boost by gear) could control it? So is that not the case? I understand you didn't design it for that. But shouldn't it still work?

I was hoping to buy this kit and do boost by gear. Controllable boost is a huge benefit over other supercharger setups. But maybe some more clarification on exactly how it would work would help potential buyers.
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Old 08-06-2021, 07:23 PM   #2 (permalink)
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Originally Posted by SeeThruHead View Post
I'm not sure i understand what the distinction is in practical use?
So if you can bleed off charged air pressure. and you can control this electronically.
Why can't it be used to limit boost pressure per gear? Does the valve not respond to control via the solenoid with the same speed that a wastegate would?

When you say that the kit's boost is controllable via solenoid that suggest to me anything that can control a solenoid (like ecutek boost by gear) could control it? So is that not the case? I understand you didn't design it for that. But shouldn't it still work?

I was hoping to buy this kit and do boost by gear. Controllable boost is a huge benefit over other supercharger setups. But maybe some more clarification on exactly how it would work would help potential buyers.
I was thinking the same thing... if it's being controlled by Ecutek to lower/raise boost, all other items that use that function should be enabled as well. However, this is probably a question that would be better answered by a tuner, no offense to TopgunZ.
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Old 08-07-2021, 08:10 AM   #3 (permalink)
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I never said it can't. Basically, we never even thought of that. I guess we just like melting tires.

So, I guess the sound of this is logical. I also don't see why you couldn't do this.

Eugene or Sebs? Please confirm.
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Old 08-08-2021, 11:09 AM   #4 (permalink)
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I talked with Eugene. He said boost by gear only works on the 370Z and it has to have rev matching.
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Old 08-12-2021, 03:23 AM   #5 (permalink)
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I talked with Eugene. He said boost by gear only works on the 370Z and it has to have rev matching.
To provide some clarification, boost by gear only works on vehicles where the gear is detected within the ecutek software. By definition, all synchrorev equipped models support boost by gear.
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Old 08-12-2021, 09:19 AM   #6 (permalink)
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To provide some clarification, boost by gear only works on vehicles where the gear is detected within the ecutek software. By definition, all synchrorev equipped models support boost by gear.
To further that, it would be 6MT only, since 7AT is only Downshift Rev Match. Unless that is still picked up by the ECU…
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Old 08-12-2021, 09:49 AM   #7 (permalink)
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To further that, it would be 6MT only, since 7AT is only Downshift Rev Match. Unless that is still picked up by the ECU…
There is one specific rom that I am aware of where gear actually works on a 7at - but I haven’t personally seen it.
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Old 08-12-2021, 10:53 AM   #8 (permalink)
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That'd be nice to enable boost by gear on the 7AT, reduce boost in 1st, 6th and 7th
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Old 08-12-2021, 06:32 PM   #9 (permalink)
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guess i can't do boost by gear anyway, on my base model. sigh!
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Old 08-13-2021, 11:15 PM   #10 (permalink)
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Anyone in the process of installing the kit?
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Old 08-18-2021, 04:36 AM   #11 (permalink)
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Have had the kit sitting in the garage all week. In the process of installing a fuel return kit I now have permanent codes p0123 p0228.I can no longer switch through my maps as well. As soon as I can get this issue sorted out I will be installing it and posting up numbers .
I just want to make sure I have no ecu issues.
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Old 08-20-2021, 06:19 AM   #12 (permalink)
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Anyone in the process of installing the kit?
Still waiting for my kit to arrive (overseas shipping). Not even sure if it has been shipped out yet.

Super afraid of potential damage to the kit during transport. I'm never lucky on that account. Have had so much stuff damaged in the past when ordering component from abroad (mostly things like exhausts and intercoolers for previous car ownerships).
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Old 08-24-2021, 08:46 PM   #13 (permalink)
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I just finished installing mine. Working on getting an appointment for a tune.
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Old 08-29-2021, 04:12 AM   #14 (permalink)
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My kit is fully installed, and began tuning with Eugene. Big shoutout to Eugene for helping us out in the late hours to get the first tune running. There is some more content on my ig, here are some clips of the Rotrex kit.

https://www.instagram.com/p/CTJx9pPn...dium=copy_link


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Old 09-08-2021, 01:18 PM   #15 (permalink)
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Originally Posted by Geeo View Post
My kit is fully installed, and began tuning with Eugene. Big shoutout to Eugene for helping us out in the late hours to get the first tune running. There is some more content on my ig, here are some clips of the Rotrex kit.

https://www.instagram.com/p/CTJx9pPn...dium=copy_link


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So, how does it feel? Anything else pending like oil cooler?
What exhaust configuration do you have (any headers?)?
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