what kind of #'s am i looking at on this setup?
Thread Starter
Teching In
Joined: Nov 2006
Posts: 19
Likes: 0
what kind of #'s am i looking at on this setup? 2000 ls1 m6, motor is now fresh 10.5 comp.
forged pistons arp bolts
ported 241 heads
kooks 1-7/8 headers, ory, magnaflow c.b to center exhaust
slp maf sensor
underdrive pulley
36# fast injectors with new high flow pump
comp cam xer 273 (224/230 .581 .588 114)
Manley nextec springs
ls7 clutch
s60 3:73 trutrac rear end
air lid with k&n
ls6 intake and valley upgrade
will be dyno tuned
car weight 3720 with me in it
forged pistons arp bolts
ported 241 heads
kooks 1-7/8 headers, ory, magnaflow c.b to center exhaust
slp maf sensor
underdrive pulley
36# fast injectors with new high flow pump
comp cam xer 273 (224/230 .581 .588 114)
Manley nextec springs
ls7 clutch
s60 3:73 trutrac rear end
air lid with k&n
ls6 intake and valley upgrade
will be dyno tuned
car weight 3720 with me in it
Last edited by 2000 droptop; Jun 8, 2015 at 12:10 AM.
Depends on how good the head porting is. Could be anywhere from 380-425 rwhp depending on that IMO.
Oh and I would get rid of that SLP MAF before you take the car to get tuned. Your tuner will thank you.
Oh and I would get rid of that SLP MAF before you take the car to get tuned. Your tuner will thank you.
Trending Topics
Im going to say around 400whp. That cam has made 380whp in a otherwise stock LS1 countless times. With the LS6 intake and decent port work you should gain a decent amount but you lose some too with the S60.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo You bought the wrong lobe for that imo. XER is a lobe for a street/strip weekend driven car. I am sure many have daily driven XER cams, but it would not be my first choice. I can not stress enough to check the valve springs.
Agreed. And I hope you have dual springs on that so you have some insurance if one goes bye bye
Thread Starter
Teching In
Joined: Nov 2006
Posts: 19
Likes: 0
I talked to comp about the spring life, they stressed every 15k, yes I have doubles on it. The builder suggested a 234 242 601 114 cam, I thought that was huge compared but said the lobes were so much better than the xer, so we'll see how it goes, hopefully ok
Why don't you just get a custom cam that has lobes designed for longer spring life? 30K a year is a LOT of miles for having to deal with checking valve spring pressure and replacing them every 20K or so....that's gonna get pricey and time consuming with the high miles you put on it. I know Ai or has custom DD cams that are easy on valve train...I'd either go that way IMO or get a cheap 4 banger DD and drive your Camaro on the weekend to keep the miles down.
Replace that SLP maf with a factory 85mm Delphi maf, used on LS6 and LS2 equipped vehicles and some GM trucks. As mentioned before, your tuner will thank you and 85mm will supply more than enough air for your application, meaning it will not be a restriction in your intake system.
I agree with ahritchie. If you're going to daily drive this car and put approx. 30k a year on it, you're probably better off replacing the current cam now with a cam which has much "softer" lobes. You won't have to worry about valvetrain life so much and you won't have to re-tune for a new cam later. Not to mention less chance of breaking a valve spring and damaging other components (rocker arm and valve). I'm just speaking from experience. I'll never use another XER, LSK, etc. aggressive lobe cam in a street car ever again. I prefer my stuff to last and get my money's worth out of parts.
I agree with ahritchie. If you're going to daily drive this car and put approx. 30k a year on it, you're probably better off replacing the current cam now with a cam which has much "softer" lobes. You won't have to worry about valvetrain life so much and you won't have to re-tune for a new cam later. Not to mention less chance of breaking a valve spring and damaging other components (rocker arm and valve). I'm just speaking from experience. I'll never use another XER, LSK, etc. aggressive lobe cam in a street car ever again. I prefer my stuff to last and get my money's worth out of parts.
That is way too much cam for 30k miles a year. The overlap alone is going to make it finicky...it will need to be tuned by somebody very experienced with tuning big cams. Personally I would get the BTR stage 1 or something equivalent for what you are looking to do. Then spend a little more money and get a set of ported 243's and you will make as much if not more power everywhere with the BTR stage 1 ported 243 combo vs the 234/242 ported 241 combo.
This is the sort of build that is a good candidate for a moderate cam and a phenomenal set of heads. If you're wanting more power and daily driving those kinds of miles.
For a performance cam that doesn't go through springs like crazy, I would talk to EPS or cam motion
For a performance cam that doesn't go through springs like crazy, I would talk to EPS or cam motion
This is the sort of build that is a good candidate for a moderate cam and a phenomenal set of heads. If you're wanting more power and daily driving those kinds of miles.
For a performance cam that doesn't go through springs like crazy, I would talk to EPS or cam motion
For a performance cam that doesn't go through springs like crazy, I would talk to EPS or cam motion
Thread Starter
Teching In
Joined: Nov 2006
Posts: 19
Likes: 0
Ok, got the motor in and on a mustang dyno, put down 413/385. BUT, I now have an issue I hope someone can help with, seems as when I'm driving over 40 ish, whatever speed I'm at and let off the pedal, the rpms stay there like cruise control is on, ANY IDEAS other than that no lights runs strong. This is with stock maf sensor installed