View Poll Results: Has your 98 CAM ONLY car reached 400rwhp with STOCK 98 heads?
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98 only! *Cam only* have you reached 400rwhp?
03-06-2007, 11:10 AM
#61
Originally Posted by LS1W66
I would still like to see some SOLID proof that the `98 806 heads are inferior vs 853/241's ?
Not to High jack your thread bud but this is a valid point. If there are guys making that much power with `98 stock heads then they can't be that bad.
Another thought is that Peak Dyno numbers don't tell the whole story. Power under the curve is what you want. A car with more power throughout the rev range can be faster than a car with a bigger numbers at the top end.
The short story is the more powerful car is not always the fastest.
I've never read that much into Dyno numbers anyway, they are tools for tuning but unfortunately too many people use them as bragging rights.
Not to High jack your thread bud but this is a valid point. If there are guys making that much power with `98 stock heads then they can't be that bad.
Another thought is that Peak Dyno numbers don't tell the whole story. Power under the curve is what you want. A car with more power throughout the rev range can be faster than a car with a bigger numbers at the top end.
The short story is the more powerful car is not always the fastest.
I've never read that much into Dyno numbers anyway, they are tools for tuning but unfortunately too many people use them as bragging rights.
Don aka Slowhawk at Dez Racing put the exact same cam that he had custom ground for my car in a 99+ fbody and he told me that it made 15+ rwhp over what my car made with almost exactly the same mods. I dont know how much better the 99+ heads flow but they are certainly better than the 98's as they have the worst flow numbers of all years. You can make good power with them, just not as much as 99+ heads will yield, but thats all the more reason to swap them out for a nice killer set of PRC/AFR/ETP/Patriot/TFS/etc heads!
03-06-2007, 01:16 PM
#62
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Originally Posted by tbird31
my buddy, Ben, HOSS on here, put down 430hp and 393tq on a cam, full bolt on setup. it was pretty wicked. the tune was amazing.
Also are Ls2 heads not the same as Ls1 heads?
03-07-2007, 10:39 AM
#63
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Originally Posted by Red97
what cam?
Also are Ls2 heads not the same as Ls1 heads?
Also are Ls2 heads not the same as Ls1 heads?
03-09-2007, 05:15 AM
#64
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I made 409 hp and 384 tq on my 98 TA with stock heads, MAC headers ORP, Hooker cat back, LS6 intake, and all the bolt on's running through a 12 bolt. This was done with a custom comp cam and was dyno tuned by Ed Wright in Tulsa, OK.
Jeff
98 Red TA M6
Cam Only, Bolt ons
409 hp 384 tq
11.54 @ 119 mph NA
10.92 @ 126 mph N20
Jeff
98 Red TA M6
Cam Only, Bolt ons
409 hp 384 tq
11.54 @ 119 mph NA
10.92 @ 126 mph N20
Last edited by CUJO98TA; 03-09-2007 at 06:09 AM.
03-18-2007, 10:12 AM
#68
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Originally Posted by tenacious z
I was told by a guy at MTI that it is a pain to switch to a different set of heads in a 98 because of the bolt style.
03-18-2007, 10:13 AM
#69
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What size cam?
Originally Posted by CUJO98TA
I made 409 hp and 384 tq on my 98 TA with stock heads, MAC headers ORP, Hooker cat back, LS6 intake, and all the bolt on's running through a 12 bolt. This was done with a custom comp cam and was dyno tuned by Ed Wright in Tulsa, OK.
Jeff
98 Red TA M6
Cam Only, Bolt ons
409 hp 384 tq
11.54 @ 119 mph NA
10.92 @ 126 mph N20
Jeff
98 Red TA M6
Cam Only, Bolt ons
409 hp 384 tq
11.54 @ 119 mph NA
10.92 @ 126 mph N20
03-24-2007, 12:46 PM
#71
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Last year when I was cam only I made 396hp/ 383tq on dynojet #s.
Cam- SRP custom 228/230 588/591 112+4
LS6 intake, pacesetter LTs, 2.5" true duals, 3" steel drive shaft, on chrome Z06s wrapped in MT drag radials.
6 speed tranny, Moser 9" w/ detroit locker and 4.11s.
Hope that helps.
Cam- SRP custom 228/230 588/591 112+4
LS6 intake, pacesetter LTs, 2.5" true duals, 3" steel drive shaft, on chrome Z06s wrapped in MT drag radials.
6 speed tranny, Moser 9" w/ detroit locker and 4.11s.
Hope that helps.
Last edited by Wino; 03-25-2007 at 12:17 PM.
03-29-2007, 07:59 AM
#73
I have done two 98 cars that have cleared 400 rwhp in a 6 speed car with low to mid 230's duration cam. The right combination of parts will do it.
What is the difference in the 98 and 99-00 heads? I thought they were similar except the valve cover bolting up?
What is the difference in the 98 and 99-00 heads? I thought they were similar except the valve cover bolting up?
04-03-2007, 01:14 PM
#74
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Good numbers!
The 98 (806) heads supposedly flow less than any other LS1 head.
From what I understand, all the heads are very similar in design. However, each year that went by, the heads flow better because of slight revisions from the factory.
The 98 (806) heads supposedly flow less than any other LS1 head.
From what I understand, all the heads are very similar in design. However, each year that went by, the heads flow better because of slight revisions from the factory.
04-24-2007, 06:05 PM
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Originally Posted by 98mysticZ
395/381 through stock intake (ls1) and thee 806 heads 
hehe 127k on the clock
hehe 127k on the clockConclusion of this thread IMO is that its a hit or a miss. Either they make outstanding power or just decent numbers.
I don't see that it makes a huge difference 98 or not. They seem just as capable as any other year out there.
