Feedback on these cam specs.
02-12-2012, 04:58 PM
#1
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Feedback on these cam specs. This is the cam spec card for the camshaft I am thinking of using for my 95 LT1 355 build. I am using trickflow 23" heads already ported and compression will be around 11 to 1.. I will be converting to carb intake and running 850 holley carb. Just lookin for feedback on this camshaft.
02-12-2012, 05:06 PM
#2
This is the cam spec card for the camshaft I am thinking of using for my 95 LT1 355 build. I am using trickflow 23" heads already ported and compression will be around 11 to 1.. I will be converting to carb intake and running 850 holley carb. Just lookin for feedback on this camshaft.
The cam is also, IMO, a bit on the small side. A similar grind, the XE503, is most notably known for being one of the best cams for use on stock heads, much less ported Trickflow's. Either step down the heads or increase the size of the cam, IMO.
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02-13-2012, 10:44 AM
#9
Why so low on the compression? Most performance builds should target the high 11s to mid 12s on the compression. The LT1 can easily handle the added compression due to the reverse flow cooling.
The cam is also, IMO, a bit on the small side. A similar grind, the XE503, is most notably known for being one of the best cams for use on stock heads, much less ported Trickflow's. Either step down the heads or increase the size of the cam, IMO.
The cam is also, IMO, a bit on the small side. A similar grind, the XE503, is most notably known for being one of the best cams for use on stock heads, much less ported Trickflow's. Either step down the heads or increase the size of the cam, IMO.
02-13-2012, 12:57 PM
#12
First i would up the compression to around 12 or more. Second i would run a bigger cam some where probably in the 232/238 range w more lift as well. and if its gonna have a single plane which was not specified, id close that lsa down to 108 ish
02-14-2012, 08:24 AM
#13
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This will be a street car.. I will be running the gm carb intake manifold, and really thing of running e85 which will help with a little more power. Should I call LE and order a camshaft from him? Any help is greatly appreciated! The heads are the 62CC heads.
02-14-2012, 08:51 AM
#14
Heads need to be milled down to make the chambers smaller. Call LE and tell him your goals.
02-14-2012, 08:52 AM
#15
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Well, since it's a Comp Cam card It will spec the lift with 1.5 factory rockers. If we get realistic and assume you're going to go 1.6 like most of the free world then the lift goes to .574 on the intake and .570 exhaust. That's a good amount of lift and with the duration's and LSA I think that would make a killer, daily driven, street cam. You should have plenty of power down low where you normally use it and still be able to get-er-done on the big end.
In other words a broad power band. That's a good thing for a street car.
I agree that you've chosen too much carb for your build. A 750 will be plenty for any power you're going to make and will give you better throttle response. This will be especially true on a double plane manifold like the Performer RPM. The Performer RPM will easily make big power at 6500 RPM. Since the double plane splits the plenum volume in half (basically) you can get away with a bit more carb.
The cam you've chosen, a 750 CFM on a double plane will easily pull well from 2000-6500 and it just don't get a lot better on a street car that will be capable of kicking some serious ***.
In other words a broad power band. That's a good thing for a street car.
I agree that you've chosen too much carb for your build. A 750 will be plenty for any power you're going to make and will give you better throttle response. This will be especially true on a double plane manifold like the Performer RPM. The Performer RPM will easily make big power at 6500 RPM. Since the double plane splits the plenum volume in half (basically) you can get away with a bit more carb.
The cam you've chosen, a 750 CFM on a double plane will easily pull well from 2000-6500 and it just don't get a lot better on a street car that will be capable of kicking some serious ***.
02-14-2012, 10:33 AM
#17
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We all know that stock compression is best for this. Let's not mislead the OP down a path of changing things and not running 12s.
What's your problem?
Do you have anything constructive to add to this post, or are you just gonna keep on trollin' along?
I don't appreciate the attitude. Let's not suggest doing things other then stock because stock is best and people run 12s doing that.
What's your problem?
Do you have anything constructive to add to this post, or are you just gonna keep on trollin' along?
I don't appreciate the attitude. Let's not suggest doing things other then stock because stock is best and people run 12s doing that.
When in doubt about what to post we should all just go back to post #1 and respond accordingly. A healthy discussion is great but the snarky remarks don't really help at all.......Right?
02-14-2012, 08:16 PM
#19
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Comp cam told me that cam runs between 1800rpm and 5600rpm range. I purchased some pacesetter longtube offroad headers. I am hoping to run high to mid 11 sec passes at the track with my setup.. I am switchin to turbo 400 trans with a 3.73 gear with 10 bolt. oh, and run a neil chance 3200-3400 stall.
02-14-2012, 08:24 PM
#20
Comp cam told me that cam runs between 1800rpm and 5600rpm range. I purchased some pacesetter longtube offroad headers. I am hoping to run high to mid 11 sec passes at the track with my setup.. I am switchin to turbo 400 trans with a 3.73 gear with 10 bolt. oh, and run a neil chance 3200-3400 stall.
