1999 LS1 Cam
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Launching!
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1999 LS1 Cam LS1 team,
99 Trans Am, 6 spd, WS6. Question on a Cam choice. Good or okay choice of a 218/224 528,535 114 lobe? Car already has installed headers, high flow cats, and magnaflow catback?
Thanks
99 Trans Am, 6 spd, WS6. Question on a Cam choice. Good or okay choice of a 218/224 528,535 114 lobe? Car already has installed headers, high flow cats, and magnaflow catback?
Thanks
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From: Central Cal.
I'd be thinking of putting a set of 243/799 heads on to really make a cam like that work.
Odd cam and kinda small ish.
Go to Texas Speed, BTR, Cam motion, WS6store, and Summits websites and look at their cams. They make excellent cams, all pretty much better than that one.
I would look more in the range of something like a 226-229 intake duration, 230-235 exh duration, 600/600 lift, 112 ish LSA.
If you want a wilder cam you can go low 230's on the intake upper 230's exhaust. If you want extreme look at upper 230's intake and 240's exhaust, I would not go that high though, just gives up so much low end and driveability.
Go to Texas Speed, BTR, Cam motion, WS6store, and Summits websites and look at their cams. They make excellent cams, all pretty much better than that one.
I would look more in the range of something like a 226-229 intake duration, 230-235 exh duration, 600/600 lift, 112 ish LSA.
If you want a wilder cam you can go low 230's on the intake upper 230's exhaust. If you want extreme look at upper 230's intake and 240's exhaust, I would not go that high though, just gives up so much low end and driveability.
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Launching!
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Found more info. Car dyno'd 347 hp / 353 torque at wheels. Torque reaches 350 and stays right there from 3-5K rpms then drops off slowly. Aren't average numbers about the same for stock ones, due to LS1 low estimates of crank hp ratings?
Thanks
Thanks
Unless there is some special circumstances, I'd select a different cam. That looks like the specs for the sort of cams in favor 20 years ago in 1999. Back then quality valve springs for an aggressive LS1 cam was an issue plus the timing software was less capable.
00pooterSS gave lot of excellent information.
The Summit Stage 1 LS Ghost Cam. 222/233 115+3, .600/.575 Lift is the smallest cam I'd consider these days unless local emissions testing is an issue etc.
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From: Ohio, Georgia, Nevada, Texas
What are you wanting to do with it and what kind of behavior are you looking for (idle etc). Weekend car or do you cruise on the highway in 6th alot?
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To answer your question on stock power... My bone stock auto dyoned at 299 to the tire, and that was inline with others. 6 speed manual cars were doing around 315 to the tire back in my LS f body days.
Mine with a LS6 intake, long tube headers and tune did 353, but it also had a stall converter so it would dyno higher if it didn't or if it were a manual trans.
Yours likely does 350 due to the headers and a tune.
Mine with a LS6 intake, long tube headers and tune did 353, but it also had a stall converter so it would dyno higher if it didn't or if it were a manual trans.
Yours likely does 350 due to the headers and a tune.
Thread Starter
Launching!
Joined: Mar 2019
Posts: 272
Likes: 89
Thread Starter
Launching!
Joined: Mar 2019
Posts: 272
Likes: 89
12 Second Club
Joined: Dec 2017
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From: San Antonio
That's a decent cam if you plan on adding a turbo later on. If you plan to stay N/A, then a bigger cam would be preferred.
The specs you provided will give you -7 degrees of overlap. You usually want +2 to +4 degrees of overlap in an N/A street build.
The specs you provided will give you -7 degrees of overlap. You usually want +2 to +4 degrees of overlap in an N/A street build.
maybe you didn’t see Mavn thread. N/a he made over 440rwhp out of a stock bottom end ls1. That’s better than most bigger na specific cams, it’s not rowdy and it drives good, easy to tune and his car ran 11.10@122 all motor. 4th gen trans am. That’s enough convincing for me. Bigger ain’t always better.
12 Second Club
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From: San Antonio
Yes, I saw that. He had to do A LOT of other mods to get there. It wasn't just the cam. So, I guess we need more info from the original poster. It's difficult to speculate what cam is best, when we don't know the end goal(s).
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One of the best things you can do is work with your local chassis dyno tuner and have a discussion with them on their ability to give you the behavior you're looking for. Based on the words "toy" and "6-speed" and "2nd to 4th" tells you like highway pulls. It sounds like the top end is relatively stock yet (manifold and heads). This tells us you'd probably be pulling the lever at 7k rpm. WIth that being the case, our stage 2 SUM-8707 is the one that will probably make you happiest. It's a 226/238 113 + 3 .600/.600. A nice set of beehives like the TFS-16918-16 and you'll be running very strong. That cam will be fairly easy for most tuners to work with but keep in mind it may push past the HP limits of your factory injectors. Your tuner will recommend a set of injectors that are characterized (like LS3's) and this will help him give you excellent drivability. Bigger injectors give you the ability to do heads/intake etc. later on if you wanted.