How to make 440 RWHP on LS1
what clutch does the GTO come with? My LS6 locked up on the dyno during my tune at 423rwhp so i still dont know what im making. Im gonna bleed it to get a little more out of it but its on borrowed time.
OP....is yours slipping at all?
OP....is yours slipping at all?
Man ive learned alot, 241 heads are just as good as trickflows and pacesetter headers are just as good as kooks. Wish I woulda known this before I started the build on my vette!
Not sure what clutch the stock one is, but its holding up so far. I expect to see it poop the bed soon, and me and my buddy will be doing the swap ourselves. Still not sure if I want to go with the Monster or Centerforce.
When time comes to replace the clutch, have you thought about an LS7 clutch kit? I have one and also a friend of mine has one in his 613hp 402ci stroked LS2 C6 and it holds up with easy and shifts smooth as butter. Just a little fyi for ya.
Yeah Ive heard of people doing that, but figured if Im going to do the swap, to put the extra money in to get something thats really gonna last. Your LS7 clutch hasn't slipped at all? How hard do you drive it? I ask because Ive heard they dont hold up as long as most people think, then again its prob different for everyone.
This was my setup from 2005. No exotic parts.
446 rwhp. 399.7 ftlbs
99 LS1 shortblock 70k mi (stock bottom end, with flycut pistons)
CNC ported 241's. (2.055, 1.60 valves) (LS1, NOT LS6 casting)
234/242 .598/.610 112+4 cam. (XE-R)
FAST 90 Intake (box stock, unported)
LS2 90mm TB. (unported)
LS2 timing chain
7.4 hardened pushrods
Ported Ls6 oil pump.
Stock rockers, and lifters.
SLP Underdrive pulley
LG Pro 1 3/4" longtubes.
Spec Stage 3 clutch.
42lb injectors.
This was in a 99 C5 Corvette, M6. Tuned by Jeremy Formato.
446 rwhp. 399.7 ftlbs
99 LS1 shortblock 70k mi (stock bottom end, with flycut pistons)
CNC ported 241's. (2.055, 1.60 valves) (LS1, NOT LS6 casting)
234/242 .598/.610 112+4 cam. (XE-R)
FAST 90 Intake (box stock, unported)
LS2 90mm TB. (unported)
LS2 timing chain
7.4 hardened pushrods
Ported Ls6 oil pump.
Stock rockers, and lifters.
SLP Underdrive pulley
LG Pro 1 3/4" longtubes.
Spec Stage 3 clutch.
42lb injectors.
This was in a 99 C5 Corvette, M6. Tuned by Jeremy Formato.
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Verdad Gallardo I've only heard good things about the LS7 clutch. My friend has 470rwhp and we went to the track a couple days ago....not one issue with it beating on it all night. Plus it's only $450. That's what my tuner recommended for me to get.
One example discussion:
https://ls1tech.com/forums/cadillac-...uld-i-get.html
Yeah Ive heard of people doing that, but figured if Im going to do the swap, to put the extra money in to get something thats really gonna last. Your LS7 clutch hasn't slipped at all? How hard do you drive it? I ask because Ive heard they dont hold up as long as most people think, then again its prob different for everyone.
I've been told the LS7 clutch will hold up to 600hp just fine as long as its not subjected to hard launching repeatedly. And in a 400whp street car that isn't dragged a lot, an LS7 clutch will last a very very long time. Hints why I have one. My car is a street car that will rarely see a punishing launch. Another great thing about the LS7 clutch is how soft and silky smooth the clutch pedal is.
IMO, if you're going to "beat" on the car off the line consistantly, then no, do not get one. That's where a twin disc clutch deverses to be.
. Thanks OP. LS7 clutch good for ~525rwhp
LS6 clutch good for ~425rwhp......and thats right where mine heated up on the dyno
If I went to the track a lot i'd probably look for something else. But for a street car with the occasional race here and there it's more than enough.
LS6 clutch good for ~425rwhp......and thats right where mine heated up on the dyno
If I went to the track a lot i'd probably look for something else. But for a street car with the occasional race here and there it's more than enough.
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