Road Racing Vs. Drag Racing Cam Profiles
12-04-2005, 08:43 PM
#82
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I road race with NASA in a C5 Vette. Last years (2005 race season) setup was a 346 with LGM G5X3 Cam and afr 205's, and Fast 90. I spin the motor to 7000-7200 all the time with a M12 and 3.42 diff. My data system says that the motor is allways above 4000 rpm. I am happy with the torque that it has. It pulls hard out of every corner. It also has a ton of power for down the straight passing.
^ Stock bottom end?!
12-05-2005, 08:31 AM
#84
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It's sort of a stock bottom end. Let me explain. It originally was a bone stock LS6 from GM Raceshop that was balanced and blueprinted. So there is a stock crank in there. I also refresh the valve springs once a season with comp 921's.
12-06-2005, 05:20 AM
#86
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Jaymz=
What type of valve springs, retainers, rockers, lifters and pushrods are you using?
Also, when you change out the valve springs, do you stick with the Patriot Golds that came with the AFR's or go to 921's?
What type of valve springs, retainers, rockers, lifters and pushrods are you using?
Also, when you change out the valve springs, do you stick with the Patriot Golds that came with the AFR's or go to 921's?
12-12-2005, 07:43 PM
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So why wouldn't a F13 or TR224 be close to ideal? They make good torque throughout the reve range and have good power up top, from the graphs I've seen. Is it just because it would be hard on the valvetrain? I guess I would be leary of buying a cam that I haven't seen graphs/proof of. I would love to see a graph of the GMPP Showroom Stock cam but it doesn't seem to popular around here. I thought that this is exactly what GM spent all the development $ on.
12-13-2005, 07:35 AM
#96
Originally Posted by SouthFL.02.SS
A phone call away. 
Good point! I'm happy to answer direct questions whenever someone asks, but to be honest, there's already 10 pages of opinions here on what camshaft is best. I'm definately not claiming to be any kind of cam expert here, but I will recommend one of our cams that I think will work well for the original posters application. I'm sure some will think a different cam will work better, and they may be right, but if I were in his position, this is the cam I would run:
http://www.lingenfelter.com/Merchant...Category_Code=
This is our GT-11 cam, specs are: 215/231 .631/.644 118.0
It is a lopey cam, but still smooth enough to idle in A/T cars. It pulls very hard from 3000 RPM all the way to redline, and makes good torque at lower RPM.
I will *attempt* to post a dyno graph of a 2006 C6 corvette M/T 403 stroker that has this cam, compared to the dyno from the same car stock.
my file was too large to upload, if anybody wants to host this dyno graph for me, let me know and I'll send it to you.
Hope this helps,
Ed
12-13-2005, 10:37 AM
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Now I see the dyno graph above and then I look at the graph between the TR224 (red) and the F13 (blue) that I included and there really isn't all that big of a differance (as far as a road racing set-up goes), any of the 3 would make a grood RR set-up, good low to mid torque and hp at the top end.
So when I look at any of these three graphs what am I looking for to be differant?
I would think that in a Z06 with ported heads and all the bolt-ons a package that could make 420rwhp and 400rwtq would be ideal. (which I have seen posted at least 3 times with the F13)
So when I look at any of these three graphs what am I looking for to be differant?
I would think that in a Z06 with ported heads and all the bolt-ons a package that could make 420rwhp and 400rwtq would be ideal. (which I have seen posted at least 3 times with the F13)
