LS1 with cam

[VinceM]

Does anyone on here have a 222/226 cam in their LS1? Just curious to know about driveability etc. Just out of interest you understand...

[bimbleuk]

I have a 222/224 (XR275HR) with XR lobes so not quite the Extreme (XER) lobes Comp did at the time.

With a 112 lobe separation there is some lope and does require tuning to get the optimum. I tuned mine myself and only had to tweak the Throttle Follower & Throttle Cracker tables (once I'd tuned the VE & MAF tables) to eliminate any RPM dip or stumbling at low speed and part throttle.

I have a lighter car than most but still bottom end torque was hardly affected if at all.

[KMud]

I'm running 222/226-115+3 with .60x/.60x lift (EPS cam) - I think it sounds good, and it's a real sweet spot for manners, ease of tune, power, etc. Sample size of 1 though, a little bigger may not hurt.

[VinceM]

Thanks for the feedback. I've got the tuning sorted out, and am finalising cam specs so wanted to get a second opinion on them. Probably going for the LXL lobes on mine.

Whilst I think I know the answer, and the budget doesn't really stretch to it at the moment, but would a FAST intake be of any real benefit at this stage?

Edited by VinceM on Friday 13th March 13:12

[bimbleuk]

With these sort of durations I personally don't think you would gain much, maybe single figures at the top end. Probably better to make sure your mods are matched both intake and exhaust before taking another step up in cam duration/lift.

[VinceM]

1 7/8" headers on the exhaust with 100 cell cats, heads will also be upgraded too.

[KMud]

Sounds like you might want a bigger cam then!

[jameshsv]

Cnc heads and a 102lsxr fast intake with matching throttle body

[TheLeatherman]

But it's not just heads and flow values....you need to think about weight of valvetrain items as well. Then you should also think about a set of rod bolts for safety, and list goes on!!!! Just on the heads I'd be buying some decent aftermarket with good flow figures and a sensible port size.

[Janosh]

I must stop reading these threads....!!!

Although maybe a cam wouldn't be such a bad idea.....

[KMud]

Research (particularly ls1tech), but if in doubt you can always consult Pat Guerra for a few $$$.