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Tight LSA baby cam

Old 03-11-2005, 11:37 PM
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Default Tight LSA baby cam

Anyone running a 110-111LSA baby cam? Something in the order of 212-216? Im thinking of going this route for my A4 but would like to hear from others first. My main concern is idle and off-idle characteristics, especially with maintaining cylinder pressure for all accessories.

Now my reckoning is that you can still get around 50* overlap so they should pull good power, yet the intack duration is still rather small so therefore maintaining cylinder pressure.
Old 03-12-2005, 11:40 AM
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Originally Posted by MNR-0
Anyone running a 110-111LSA baby cam? Something in the order of 212-216? Im thinking of going this route for my A4 but would like to hear from others first. My main concern is idle and off-idle characteristics, especially with maintaining cylinder pressure for all accessories.

Now my reckoning is that you can still get around 50* overlap so they should pull good power, yet the intack duration is still rather small so therefore maintaining cylinder pressure.
93Pony and I use these kind of grinds...

It all depends on the "combination"...

Ed
Old 03-12-2005, 01:06 PM
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I can tell you one thing, your not going to get 50* @.050.
Old 03-12-2005, 01:58 PM
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No but you will at .004 I believe
Old 03-13-2005, 12:16 AM
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i'm running a 106 with my a4
Old 03-13-2005, 08:06 AM
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So do you think I will have idle problems?
Old 03-13-2005, 09:47 AM
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Not with a good professional tune.
Old 03-13-2005, 06:22 PM
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OK. Thanks for the replies.

Ill get a custom one designed by myself and see what happens. If ti doesnt work, its only a cam change to fix it. Noone really runs this kind of odd-ball cam here in OZ. Everyone is into 222-228 cams.
Old 03-14-2005, 12:29 PM
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Originally Posted by MNR-0
So do you think I will have idle problems?
I run CompCam's 206/212 112lsa installed on a 112icl on stock tune. It lightly gurgles at idle. The cam that you are looking at shouldn't have that much more overlap, so I'd venture a guess that it would be easy to tune a solid idle without raising idle rpm too much.

For me I think a good set of small diameter headers (extractors) would help clean up the idle a bit. But for now, I'll live with the stock manifolds. I also added higher ratio rocker arms. The whole setup works pretty good with a stock torque converter'd car. The engine is very punchy at the touch of the throttle with good mid range pull. Gas mileage has stayed the same, maybe even slightly improved. With the cam & rocker arms I gained 3 mph in the 1/4 trap, mid-107 to mid-110, so I also gained some power in the upper rpm range too. Good luck with it!
Old 03-14-2005, 12:37 PM
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Originally Posted by slow67
I can tell you one thing, your not going to get 50* @.050.
Overlap numbers matter when using seat-to-seat numbers. Using overlap numbers at .050 is almost meaningless.
Old 03-14-2005, 04:26 PM
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I'm running 210/218 LSA 112- Idle is good, but abit more aggresive than stock Z06 cam.
My overlap is -10* at .05 and 53* at .004.
The tune is imporant to idle quality
Old 03-14-2005, 05:45 PM
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Im mating it up to a 3000/2.0STR stally. I like being different, and believe you don't need big cams to make decent numbers and QTR times. I am also debating whether to use the new Crane "Accelerated Lift" 1.7 ratio rockers. It would change valve duration by a few degrees at 0.005" and 0.05" so I am concerned by that. Thinking a set of rollers would be better as the lift and overlap can then be wholly controlled by the cam.


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