Magnacharger C6 Vette Results!
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Magnacharger C6 Vette Results! Wow, what a week of thrashing trying to get this Corvette ready to attend the Year One show this weekend. Thanks goes out to Mike at Icon Autosports for assisting with the cam, exhaust, and blower installation. We worked to almost midnight twice this week. Conley's Performance Plus stayed open until 1am this morning dyno tuning the car on their Mustang chassis dyno. But, I'm happy to say the car is DONE....for now 
Specs:
2005 Corvette Z51, 6-spd manual
230/230 .591/.591 114 CompCam, valvesprings, pushrods
LG Motorsports longtube headers with X-pipe (no cats)
Magnaflow catback system
Magna Charger supercharger with 42# injectors, low boost pulley.
stock shortblock, stock unported heads, stock fuel pump with Magnavolt booster.
The big pulley on this blower made a whopping 5.0 psi boost. Sounds somewhat low, but its safe I suppose. This one has a 3.4" pulley on it right now, I had a 2.90" pulley on my previous Magnacharger car.
Mustang Chassis Dyno, tuned with wideband O2 and HP Tuners:
509.88 rwhp, 456.56 ft-lbs
This Mustang Dyno is about 8-10% lower in numbers compared to the typical Dynojet brand dyno numbers. For comparison's sake, that means between 550-560 rwhp via Dynojet.
Not bad for only 5 psi and a safe A/F tune!
The torque line is amazing on this setup. At only 3K rpm, it hits over 400 ft-lbs (432-440 Dynojet) and goes nearly straight across the entire powerband.
Needless to say, this car feels completely different than before. I did some ~ahem~ test runs at 2am on a deserted backroad at 140 mph and it was scary fast. Raceweight is around 3385 with me in it.
I'll have some nice pics over the weekend, if anyone is going to the Year One show at Road Atlanta this weekend, stop by and check it out.
Tony
Specs:
2005 Corvette Z51, 6-spd manual
230/230 .591/.591 114 CompCam, valvesprings, pushrods
LG Motorsports longtube headers with X-pipe (no cats)
Magnaflow catback system
Magna Charger supercharger with 42# injectors, low boost pulley.
stock shortblock, stock unported heads, stock fuel pump with Magnavolt booster.
The big pulley on this blower made a whopping 5.0 psi boost. Sounds somewhat low, but its safe I suppose. This one has a 3.4" pulley on it right now, I had a 2.90" pulley on my previous Magnacharger car.
Mustang Chassis Dyno, tuned with wideband O2 and HP Tuners:
509.88 rwhp, 456.56 ft-lbs
This Mustang Dyno is about 8-10% lower in numbers compared to the typical Dynojet brand dyno numbers. For comparison's sake, that means between 550-560 rwhp via Dynojet.
Not bad for only 5 psi and a safe A/F tune!
The torque line is amazing on this setup. At only 3K rpm, it hits over 400 ft-lbs (432-440 Dynojet) and goes nearly straight across the entire powerband.
Needless to say, this car feels completely different than before. I did some ~ahem~ test runs at 2am on a deserted backroad at 140 mph and it was scary fast. Raceweight is around 3385 with me in it.
I'll have some nice pics over the weekend, if anyone is going to the Year One show at Road Atlanta this weekend, stop by and check it out.
Tony
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Magnachargers can push 12 psi with the right combo of pulleys. My '69 pushed 9.5 psi with just the front pulley changed out.
Dyno sheet attached, showing RPM range between 2900 to 7000 rpm.
Dyno sheet attached, showing RPM range between 2900 to 7000 rpm.
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Originally Posted by Nine Ball
Magnachargers can push 12 psi with the right combo of pulleys. My '69 pushed 9.5 psi with just the front pulley changed out.
Dyno sheet attached, showing RPM range between 2900 to 7000 rpm.
Dyno sheet attached, showing RPM range between 2900 to 7000 rpm.
How is the drivability?
Originally Posted by Bad Habit Bird
So how much rwhp is it capable of making? I thought they were only good to about 550rwhp.
How is the drivability?
How is the drivability?
Driveability on a magnacharged vehicle will be just about as close to factory as possible. With the cam he has, which is pretty big for a blower,....I would imagine would still, be very driveable,....very.
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
230/230 isn't a big cam for a 6.0L engine. It has excellent drivability and sounds nice. The loping black Corvette attracted many inquiring minds at the car show this weekend. Here are some pics:
Those are the factory fuel rail covers. Conley's in Houston cut them and notched them to fit the blower setup perfectly, they did my dyno tuning.
Tony
Those are the factory fuel rail covers. Conley's in Houston cut them and notched them to fit the blower setup perfectly, they did my dyno tuning.
Tony
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Its fast enough for now. More HP just means I'd have to beef up the weak rearend and replace the clutch. 550 rwhp is awesome in such a small and lightweight car.
Tony- Is it your opinion and that of Conley's/Icon that the motor can handle that amount of power for a fairly long period of time without issue?
How does it feel SOTP-wise, in comparison to your '69 and the blue car with the big motor in it, and compared to other cars you've driven?
Does the blower "whine" alot, how noisy is it?
What kinda numbers do you thing you would have seen without the cam?
Shawn
How does it feel SOTP-wise, in comparison to your '69 and the blue car with the big motor in it, and compared to other cars you've driven?
Does the blower "whine" alot, how noisy is it?
What kinda numbers do you thing you would have seen without the cam?
Shawn
Thread Starter
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Icon/Conley's haven't had much LS2 boost experience, so there really isn't much historical info to make calls like that. All we know is that the car is tuned on the slightly rich side, and is only making 5psi boost. It "should" live pretty well under those conditions. It also had 0 knock retard during the tuning sessions, even with a blazing hot blower.
SOTP-wise, it feels much quicker than any car I've owned so far. Mostly because it is so lightweight. Its about 200 lbs lighter than the Formula and the 69 Camaro. Those cars would have needed 700 rwhp to hang with this one from a roll.
Blower is ultra quiet until about 6K rpm. It screams up to 7K rpm and sounds wicked.
On a stock C6, the Magna is worth about 120 rwhp (estimated). If they pull 350-355 rwhp stock, they should make around 470-475 rwhp with a Magna at low psi.
Tony
SOTP-wise, it feels much quicker than any car I've owned so far. Mostly because it is so lightweight. Its about 200 lbs lighter than the Formula and the 69 Camaro. Those cars would have needed 700 rwhp to hang with this one from a roll.
Blower is ultra quiet until about 6K rpm. It screams up to 7K rpm and sounds wicked.
On a stock C6, the Magna is worth about 120 rwhp (estimated). If they pull 350-355 rwhp stock, they should make around 470-475 rwhp with a Magna at low psi.
Tony
Originally Posted by Nine Ball
SOTP-wise, it feels much quicker than any car I've owned so far. Mostly because it is so lightweight. Its about 200 lbs lighter than the Formula and the 69 Camaro. Those cars would have needed 700 rwhp to hang with this one from a roll.
Tony
With the cost of the blower and headers / exhaust do you think a turbo setup would have been better or worse for a daily driven car as far as power and reliability?
