Rotrex owners opinions wanted - Pontiac Solstice Forum
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post #1 of 7 (permalink) Old 12-13-2017, 08:28 PM Thread Starter
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Rotrex owners opinions wanted

Looking to hear input from any and all Rotrex owners. What is your experience? I'm ready to pull the trigger, but trying to decide between Hahn stage 3 turbo, or the upgraded Rotrex kit from DDM. Your input is greatly appreciated!
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post #2 of 7 (permalink) Old 12-14-2017, 07:23 AM
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Subscribed. BTW, you may want to post this question on the Skyroadster and KappapPerformance forums.
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Mr & Mrs ChopTop's 09 Fastback & 06 Vert Mods thread:https://www.solsticeforum.com/forum/f...session-75468/ Original join date; Oct 2005 under LowLife handle.
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post #3 of 7 (permalink) Old 12-14-2017, 08:31 AM
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Basically, I like it. It fits in between a root blower & a turbo (I came from the aviation world & DON'T like heat). Because it acts like a turbo with the bypass valve, I've got mine set to 2 lbs before it lifts. Don't need an SC boost in Dallas traffic. The root kit's torque curve is linear and provides better boost at low rpms. Rotrex acts more like a turbo in that it provides peak power at higher rpms. If you're not local to DDM, you will need HP Tuners to be able to send the tune back & forth in case there's a problem.
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Last edited by stuck; 12-14-2017 at 08:45 AM.
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post #4 of 7 (permalink) Old 12-14-2017, 01:22 PM
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Quote:
Originally Posted by stuck View Post
Basically, I like it. It fits in between a root blower & a turbo (I came from the aviation world & DON'T like heat). Because it acts like a turbo with the bypass valve, I've got mine set to 2 lbs before it lifts. Don't need an SC boost in Dallas traffic. The root kit's torque curve is linear and provides better boost at low rpms. Rotrex acts more like a turbo in that it provides peak power at higher rpms. If you're not local to DDM, you will need HP Tuners to be able to send the tune back & forth in case there's a problem.
Has anyone installed a roots or twinscrew on a Kappa car?

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post #5 of 7 (permalink) Old 12-14-2017, 01:42 PM
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Yeah, DDM used to sell a Magnuson kit before they switched to Rotrex. Don't remember the model number.

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post #6 of 7 (permalink) Old 12-14-2017, 04:48 PM
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I had a cobalt SS SC and while my solstice has more horsepower and is faster in many ways the cobalt felt quicker and more responsive.
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post #7 of 7 (permalink) Old 12-14-2017, 05:31 PM
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It was the MP62 Supercharger, I'm not sure how many kits were sold.

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Mr & Mrs ChopTop's 09 Fastback & 06 Vert Mods thread:https://www.solsticeforum.com/forum/f...session-75468/ Original join date; Oct 2005 under LowLife handle.
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