Recomendations needed on cam LSA
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Joined: Sep 2002
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From: Effingham IL
Recomendations needed on cam LSA
With a 6 speed, with all the bolt ons. The only thing I may leave alone is the pulley. I want to make 390-410 RWHP. Most tuners are recomending 113 LSA, some recomend 114 LSA. A good strong bottom end is more important to me than peak #s. I also want bullet proof reliability in a driver and passenger friendly package. Icurrently run an off-road x pipe with a touring exhaust and S-03s so the car is raspy at WOT but whisper quiet at criuse. BTW I also plan on heads for the car.
1 What are the pros/cons of each?
2 What are the emissions implications? I plan on hi flow cats.
3 What kind of reliability/maintainance needs can I expect? I plan on Manley hardened push rods and a spring other than the comp 918s
4 Will H/C make it louder at cruise?
Thanks in advance
Greg
1 What are the pros/cons of each?
2 What are the emissions implications? I plan on hi flow cats.
3 What kind of reliability/maintainance needs can I expect? I plan on Manley hardened push rods and a spring other than the comp 918s
4 Will H/C make it louder at cruise?
Thanks in advance
Greg
Le Mans Master
Joined: Nov 2000
Posts: 7,294
Likes: 1
From: Coral Springs Florida
Re: Recomendations needed on cam LSA (cmeb4dk)
I'll make the assumption you have already chose your heads and cam profile but are concerned with the idle quality. The LSA will have an effect on the idle just as the rpms will. Many have had good luck with a 112 LSA and modifying the throttle body to maintain a stable idle without surging. On the other hand a 114 LSA will make everything eaiser for the daily driver.
It's more of an issue for the automatic cars....I'd say go with the tuners and choose a cam with a 113 LSA...Just my .02:D
It's more of an issue for the automatic cars....I'd say go with the tuners and choose a cam with a 113 LSA...Just my .02:D
Burning Brakes
Joined: Aug 2000
Posts: 873
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From: Albuquerque nm
Re: Recomendations needed on cam LSA (cmeb4dk)
My motor makes the HP you would like to achieve, is very drivable and reliable.
The 114 lsa cam is nice for daily driving, you can feel it and hear it but it's not too lopey.
If you go to the 112 lsa and durations greater then 224 I think you will have emission concerns as well....JMHO
Tripp
Pro
Joined: Jan 2000
Posts: 652
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From: Salisbury MD.
Re: Recomendations needed on cam LSA (cmeb4dk)
I just installed a comp cam 218-222 dur 562-566 lift 114-lobe sep. The car idles at 750 rpms and has great performance. It has a beautiful sound at idle. Just my 2 cents. :cheers:
Drifting
Joined: Jul 2000
Posts: 1,818
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From: SoCal
Re: Recomendations needed on cam LSA (cmeb4dk)
1 What are the pros/cons of each?
2 What are the emissions implications? I plan on hi flow cats.
3 What kind of reliability/maintainance needs can I expect? I plan on Manley hardened push rods and a spring other than the comp 918s
4 Will H/C make it louder at cruise?
2 What are the emissions implications? I plan on hi flow cats.
3 What kind of reliability/maintainance needs can I expect? I plan on Manley hardened push rods and a spring other than the comp 918s
4 Will H/C make it louder at cruise?
2) higher lsa will generally be cleaner (less overlap)
3) higher you rev your car, the more likely it will self destruct and the sooner it will wear out. Other than that, you can go quite a long time without having to do any abnormal maintanance. Maybe change the valve springs once a year just to be safe.
4) the heads/cam will only make it very slightly louder at cruise. My heads/cam car with a z06 catback and stock cats is silent with cruise set at 70....I have to turn the stereo totally off to hear it. The valvetrain will be a little noisier tho. :bb
