Next mod?
Thread Starter
Instructor
Joined: Aug 2007
Posts: 133
Likes: 0
From: Edmonton, Alberta
Next mod?
I have a 2005 C6 with a 6 speed. I have done the LG longtubes, High flow cats, Bullet muflers, CAI, 160 degree stat and a dyno tune. I am up around the 375 rwhp mark and want a bit more bang for the buck.
Anyone tried an under drive pulley system? I know I will probably end up going with a diff cam, but would like to max out the bolt on mods first. I also see a lot of members here going to the MGW shifter...My car is a nightmare to get into reverse. Will a new shifter help?
Anyone tried an under drive pulley system? I know I will probably end up going with a diff cam, but would like to max out the bolt on mods first. I also see a lot of members here going to the MGW shifter...My car is a nightmare to get into reverse. Will a new shifter help?
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
A lot of hassle to get an u/d pulley on...might as well do a cam at the same time. IMO, gears or FAST. Gears won't give you power but it'll feel like it. I don't yet have gears but I've done gears in past cars and they should have been one of my first mods. Just a bit expensive. A FAST will get you to the 400rwhp mark, maybe more with a ported FAST. Much better than u/d pulley IMO.
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
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Burning Brakes
Joined: Apr 2009
Posts: 1,155
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From: Kansas City MO
wait on the undersrive pulley until cam or heads. I got around 5-8rwhp with a pulley but it may cause problems with battery charge. when I ran Air conditioner and had pulley you could see the headlights go a little dim at a stop light UD Pulley does not keep battery charged as well as stock pulley and I read the C6's already have a big drain on battery. go fast intake.
Burning Brakes
Joined: Nov 2007
Posts: 1,083
Likes: 3
From: Buena Park CA
wait on the undersrive pulley until cam or heads. I got around 5-8rwhp with a pulley but it may cause problems with battery charge. when I ran Air conditioner and had pulley you could see the headlights go a little dim at a stop light UD Pulley does not keep battery charged as well as stock pulley and I read the C6's already have a big drain on battery. go fast intake.
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
Last edited by bunk22; Jun 2, 2009 at 08:22 PM.
Burning Brakes
Joined: Jan 2008
Posts: 905
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From: BURTON MI
Passing along info I've read here, a ported stock manifold will yield maybe 10 hp, a ported fast although getting 25 on a h/c car seems to be getting only 15 on a basically stock car. Ported t/b yields practically nothing as does the stat.
Thread Starter
Instructor
Joined: Aug 2007
Posts: 133
Likes: 0
From: Edmonton, Alberta
Thanks guys, I think the ported Fast may be a reasonable priced answer, but for an extra 600 bucks, I can get the heads done and pick up 50 hp. the combo of the ported fast and the U/D pulley would get me 400hp and I wouldn't have to pull the engine apart. Maybe I just sell it and buy a Z06...ha ha. Thanks for all the help guys...now if I could only get some help with my reverse gear...
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
Thanks guys, I think the ported Fast may be a reasonable priced answer, but for an extra 600 bucks, I can get the heads done and pick up 50 hp. the combo of the ported fast and the U/D pulley would get me 400hp and I wouldn't have to pull the engine apart. Maybe I just sell it and buy a Z06...ha ha. Thanks for all the help guys...now if I could only get some help with my reverse gear...
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
He thinks he's around 375, but I do think 380-385 is closer, and I failed to mention, on a bolt on car, the ported or unported fast both yield approx 15 hp. I agree, that sould put him at or very near 400 rwhp.