newbie racing questions
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 39
Likes: 0
newbie racing questions
I have been spending a bit of time on ls1tech.com but I'm not aiming at drag racing my car so they don't give me all the info I want. I want to put it on a circuit track. So I have some newbie questions. My engine build right now is a torquer v.2 (112), patriot 58cc heads, stock cam, forged +2cc flat top JE pistons, forged rods, ls6 intake, 75mm TB, all in a honed ls1 block. I don't have the valvetrain completely set up, just the dual gold spring .650 that came with the heads. I'm looking for something to run hard on a track but be able to use as a daily driver. What's should I look at for rpm band and rev limit. Would solid lifters be too much hassle for a daily driver? I'm pretty sure the torquer v.2 needs to go since it might be too low end heavy. I'm open to any suggestions. Oh and its not actually in a corvette, its in a 1987 porsche 944.
Safety Car
Joined: Nov 2006
Posts: 3,860
Likes: 5
From: Tampa FL
I have been spending a bit of time on ls1tech.com but I'm not aiming at drag racing my car so they don't give me all the info I want. I want to put it on a circuit track. So I have some newbie questions. My engine build right now is a torquer v.2 (112), patriot 58cc heads, stock cam, forged +2cc flat top JE pistons, forged rods, ls6 intake, 75mm TB, all in a honed ls1 block. I don't have the valvetrain completely set up, just the dual gold spring .650 that came with the heads. I'm looking for something to run hard on a track but be able to use as a daily driver. What's should I look at for rpm band and rev limit. Would solid lifters be too much hassle for a daily driver? I'm pretty sure the torquer v.2 needs to go since it might be too low end heavy. I'm open to any suggestions. Oh and its not actually in a corvette, its in a 1987 porsche 944.
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 39
Likes: 0
Why thank you. I'm asking solely about a LS engine which is what's in your car, so if you'd kindly open the hood of your car you'd find it looks exactly the same. YAY!!!! It doesn't matter what car its in, I'm just wondering what I need to look for in a powerband and rev limit with a racing engine.
Drifting
Joined: Oct 2004
Posts: 1,790
Likes: 29
From: STL MO
St. Jude Donor '09-'10
Tom has an LS7 in his car....
Take a look at the Autocrossing & roadracing section:
http://forums.corvetteforum.com/auto...roadracing-23/
Many knowledgeable track guys always looking in over there.
Take a look at the Autocrossing & roadracing section:
http://forums.corvetteforum.com/auto...roadracing-23/
Many knowledgeable track guys always looking in over there.
Burning Brakes
Joined: Aug 2008
Posts: 802
Likes: 6
From: Oro Valley AZ
I have been spending a bit of time on ls1tech.com but I'm not aiming at drag racing my car so they don't give me all the info I want. I want to put it on a circuit track. So I have some newbie questions. My engine build right now is a torquer v.2 (112), patriot 58cc heads, stock cam, forged +2cc flat top JE pistons, forged rods, ls6 intake, 75mm TB, all in a honed ls1 block. I don't have the valvetrain completely set up, just the dual gold spring .650 that came with the heads. I'm looking for something to run hard on a track but be able to use as a daily driver. What's should I look at for rpm band and rev limit. Would solid lifters be too much hassle for a daily driver? I'm pretty sure the torquer v.2 needs to go since it might be too low end heavy. I'm open to any suggestions. Oh and its not actually in a corvette, its in a 1987 porsche 944.
Race Director
Joined: Dec 2006
Posts: 12,367
Likes: 2,900
From: Fort Worth, Texas
You need good rod bolts to turn 7k+, but don't think it's necessary to do so especially if you're limited by the ls6 intake. Also a solid roller isn't really gonna be of any benefit if you're staying under 7k. Sounds like your SCR is going to be fairly high and the car is pretty light, so I'd tailor the cam accordingly. Something on a wider lsa (ie 228/232 114), will drive a little smoother with less overlap and make good avg power imo
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Thread Starter
Intermediate
Joined: Jul 2010
Posts: 39
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Hate to be a newbie but what is SRC? I do have ARP rod bolts so I should be covered. At what point will the ls6 start to limit me? Also, I know the cam produces power from 1800 to 6400 but is there a point where the cam shouldn't go higher? I guess what usually limits rpm? I'm hoping to pick up a set of Jesel pro J2k rockers if that helps at all.
Race Director
Joined: Dec 2006
Posts: 12,367
Likes: 2,900
From: Fort Worth, Texas
no problem-Static Compression Ratio...the ls6 intake runners pretty much force a peak at 6300rpm and there's really no point in running more than 500rpm beyond peak imo...stock rockers will be fine with that and ask Katech, but I don't think they like seeing the piston speeds caused by 7k+ rpm in engines constantly turning high rpm aka road racing and don't see the point unless you're being sponsored