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[Z06] Test drove Supercharged C5Z today

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Old Nov 19, 2016 | 07:35 PM
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Default Test drove Supercharged C5Z today

I've got to say, and dont get me wrong it was very quick, but I was a little underwhelmed. I was expecting to finish driving the supercharged z and go back to my stock c5z and feel really slow in mine. But that wasnt the case. It had a corsa exhaust, long tube headers and magnuson supercharger. Looked like it was lowered on stock bolts and besides some aftermarket rims, and only an aftermarket shift ****, it was stock.

The exhaust was loud, and sounded amazing. Very exotic sounding. I had an open road to really open it up, and was expecting neck snapping fast acceleration but it really wasnt. The clutch pedal did stick from the 2nd-3rd shift at wide open throttle, so something tells me there might be some tuning/mechanical issues which may be why the supercharger wasn't providing full boost?

Anyway, I did like the clutch feel of this one, clutch pedal travel was about half of mine, any idea how that was achieved?
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Old Nov 19, 2016 | 10:23 PM
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Should of been a big difference, especially with the low end TQ on a PD blower. Should of been spinning on a WOT 2-3 shift on street tires. How much power was it supposed to be making?
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Old Nov 19, 2016 | 11:24 PM
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Dealer was claiming around 550hp to the wheels
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Old Nov 20, 2016 | 06:53 AM
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Originally Posted by harryk387
Dealer was claiming around 550hp to the wheels
Was the traction turned off? If not you won't be getting the full power as the computer will try to wind it in to get max traction, mine is 613 hp at the flywheel and with the traction off it will spin up in 3rd on boost with no problem. As for the clutch this is a standard issue on boosted Zeds, needs a twin plate clutch like a McLeod RST

Last edited by RED 72 VETTE; Nov 20, 2016 at 06:54 AM.
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Old Nov 20, 2016 | 09:52 AM
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Originally Posted by RED 72 VETTE
Was the traction turned off? If not you won't be getting the full power as the computer will try to wind it in to get max traction, mine is 613 hp at the flywheel and with the traction off it will spin up in 3rd on boost with no problem. As for the clutch this is a standard issue on boosted Zeds, needs a twin plate clutch like a McLeod RST
Something tells me whoever modified this car didnt upgrade the clutch since it felt stock besides the shorter clutch pedal travel. Shifter was for sure stock. Any idea how they achieved the shorter clutch pedal travel? I kind of liked it.
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Old Nov 20, 2016 | 05:37 PM
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Originally Posted by harryk387
Something tells me whoever modified this car didnt upgrade the clutch since it felt stock besides the shorter clutch pedal travel. Shifter was for sure stock. Any idea how they achieved the shorter clutch pedal travel? I kind of liked it.
it does sound like the clutch was stock which would describe the sticking 2-3 shift, mine was horrible about doing that until I swapped in a twin disc... it might be able to hold 550 but would be on the brink of slipping and surely wouldn't last long at that power level if driven hard... maybe it's just the type of supercharger but I think you would change your mind if you rode in a higher hp centrifugal supercharged car, like something mid 600's and up... at those levels the acceleration is to the point of walking away from some bikes and that is no joke
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Old Nov 21, 2016 | 12:55 AM
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you should have noticed a huge difference. magnuson would give you 120 to 150 additional hp, centrifugal would net you 150-200 hp. I put a centrifugal sc on a auto c5 ls1 with a blower cam and made 525 to the wheels. It dynoed at 315 without blower on mustang dyno and after blower and cam dynoes 525 on mustang dyno. magnusson wont give you 200 additional by a solid 125 to 150 with tons of torque. blowing off tires would be a major concern. actually too much power for the street. if spinning tires and losing is your thing then go for it.
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Old Nov 21, 2016 | 02:40 AM
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Originally Posted by harryk387
I've got to say, and dont get me wrong it was very quick, but I was a little underwhelmed. I was expecting to finish driving the supercharged z and go back to my stock c5z and feel really slow in mine. But that wasnt the case. It had a corsa exhaust, long tube headers and magnuson supercharger. Looked like it was lowered on stock bolts and besides some aftermarket rims, and only an aftermarket shift ****, it was stock.

The exhaust was loud, and sounded amazing. Very exotic sounding. I had an open road to really open it up, and was expecting neck snapping fast acceleration but it really wasnt. The clutch pedal did stick from the 2nd-3rd shift at wide open throttle, so something tells me there might be some tuning/mechanical issues which may be why the supercharger wasn't providing full boost?

Anyway, I did like the clutch feel of this one, clutch pedal travel was about half of mine, any idea how that was achieved?
Heat is a huge factor. The maggie mp122's were notorious for heat sink and that greatly reduces performance. The TVS based models were much better but that doesn't mean it had proper intercoolers, etc. Many people cheap out on their installs. Surprisingly many people go for the older MP122's because they're cheaper too.

A roots type blower you should feel the improvement right off the line. If you didn't something was wrong.

Last edited by TGO; Nov 21, 2016 at 02:40 AM.
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Old Nov 21, 2016 | 10:30 PM
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I suggest you take another ride in a different supercharged car, If you were close I would gladly give you a spin that I am sure would change that last thought
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Old Nov 21, 2016 | 11:18 PM
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Originally Posted by skydiven4fun
I suggest you take another ride in a different supercharged car, If you were close I would gladly give you a spin that I am sure would change that last thought
I agree with him, there is a massive difference in power/speed.
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Old Nov 22, 2016 | 12:12 PM
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I have an '02 Z with a Maggie on it and it is a huge difference. I am still breaking loose in third gear and the pull with the blower is crazy. Sounds to me like something is not right.
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Old Nov 22, 2016 | 02:01 PM
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Honestly I can see where he thinks this. I had a Magnuson on my car when I bought it, made 475 to the tire, was a fun stop light to stop light car but on the highway etc...it lacked that 'wow' factor. When I swapped to a Centri blower it was a whole new feeling, 660 to the tires and the car hooked in 2nd gear. It was a force to be reckoned with.
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Old Nov 22, 2016 | 02:19 PM
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Originally Posted by Dunn
Honestly I can see where he thinks this. I had a Magnuson on my car when I bought it, made 475 to the tire, was a fun stop light to stop light car but on the highway etc...it lacked that 'wow' factor. When I swapped to a Centri blower it was a whole new feeling, 660 to the tires and the car hooked in 2nd gear. It was a force to be reckoned with.
Makes me think the dealer of the car he drove made a wild guess on the power and it's actually significantly less than what is claimed.

Last edited by Quickshift_C5; Nov 22, 2016 at 02:19 PM.
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Old Nov 22, 2016 | 06:10 PM
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it's the middle of november. you had no traction. what did you expect?

without the tire hp is meaningless
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Old Nov 23, 2016 | 06:56 AM
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Originally Posted by harryk387
Anyway, I did like the clutch feel of this one, clutch pedal travel was about half of mine, any idea how that was achieved?
The car likely has an adjustable master cylinder. I have a TICK MC and the pedal is about 1" above the height of the dead pedal.
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Old Nov 28, 2016 | 12:48 AM
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it's was a centrifugal supercharger, i could of understand. but not a roots type.
could be super detuned and safe. probably dont even have a boost gauge.
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