What would happen of i ran a cammed ls1 with no headers?
05-03-2009, 01:55 AM
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What would happen of i ran a cammed ls1 with no headers? i hydrolocked my motor a few weeks ago, and was recently offered an LS1 with a 228/231 comp cam, LS6 intake, and 241 heads for a DAMN good price. only thing is, my car doesnt have headers. can i still run the motor?
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05-03-2009, 09:59 PM
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just get some mids for less than 200. don't run with stock manifolds, you won't like it and will end up doing something. but if i were in your situation, i'd take that "good deal" on the block and put a little extra of that savings for some good LT's.
05-03-2009, 10:19 PM
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Chances are with longtubes and an ls6 intake you'll max out around 385 at the wheels with that cam. Ran a very similar cam and even with Longtubes and an LS6 intake it maxed out at 377 rwhp
05-03-2009, 11:05 PM
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If the question is concerning using stock manifolds, MANY people do this. It's not uncommon. You'll be fine. A little light in the power department over headers, but still noticeable.
05-04-2009, 08:37 AM
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Am I missing something here? You are saying: longtubes, ls6 intake, and a cam will only make 385rwhp????
My 02' 6speed Z28 made 381rwhp with only a set of dynatech longtubes. true duals, lid, and a tune. Did I miss something? Is this setup you speak of running through an auto? I could possibly see that low of #'s but not a 6speed car....unless technology has only gone backwards, and last time I check alot has changed/improved since 01/02'
05-04-2009, 10:43 AM
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dynos read different. i ran my car with a forged383 bottom end and 224/228dur. 581/588 lift 112lsa cam (01 firehawk in sig) with stock exhaust manifolds. i spun i rod bearing and couldn't afford the headers at the time. car only made 350rwhp and 380rwtq. i actually blew one of the exhaust manifolds in half (sounded like there was someone fireing a shotgun under the hood) so i put the headers in my sig with the 12 bolt and clutch when they went back to tune it, it made 433rwhp 434rwtq. so when i added the headers i gained 80rwhp and thats with the new 12 bolt so it prolly would have been almost 90rwhp if i were running the 10 bolt. the car will run with stock manifold it you get someone to tune it right but your leaving alot on the table, but just think when you finally do get your headers your gonna definalely feel the difference. side note you might wanna change your timing chain to a double roller since my old timing chain (which i didn't change when they put the shortblock in) decided to come apart at 3500 rpm's and bend all the valves in the heads, and was the reason for the whole new top end of my motor, but hey i wanted 500rwhp NA anyway..lolol
05-04-2009, 10:43 AM
#13
Am I missing something here? You are saying: longtubes, ls6 intake, and a cam will only make 385rwhp???? My 02' 6speed Z28 made 381rwhp with only a set of dynatech longtubes. true duals, lid, and a tune.
Did I miss something? Is this setup you speak of running through an auto? I could possibly see that low of #'s but not a 6speed car....unless technology has only gone backwards, and last time I check alot has changed/improved since 01/02'
My 02' 6speed Z28 made 381rwhp with only a set of dynatech longtubes. true duals, lid, and a tune. Did I miss something? Is this setup you speak of running through an auto? I could possibly see that low of #'s but not a 6speed car....unless technology has only gone backwards, and last time I check alot has changed/improved since 01/02'
05-04-2009, 10:57 AM
#14
05-04-2009, 12:25 PM
#15
If the motor has an LS6 instake you should be around 370 - 375 at the wheels with just the cam. That is what I made before I did the headers, though the stock cats were removed from the exhaust at the time. I was running a 228/234 112+2 cam, maybe a little different then yours.
The car will run just fine that way and it should still out run a bolt on car without a problem.
The car will run just fine that way and it should still out run a bolt on car without a problem.
05-04-2009, 02:24 PM
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well, the only reason i ask is because i have an A4 1998 T/A. i've been doing as much research as possible and read that the 98 heads flowed much less and were "not as good" as the 99-02 heads (i think they were the 242's !?!?).
all i want in my car is a complete exhaust setup and a cam, and believe it or not 370-380hp is pretty much where i wanna be. i just wanted to know if i could get that in my 98, with the lesser flowing heads. and yes, i'll need an intake and possibly a cheap ported throttle body as well.
all i want in my car is a complete exhaust setup and a cam, and believe it or not 370-380hp is pretty much where i wanna be. i just wanted to know if i could get that in my 98, with the lesser flowing heads. and yes, i'll need an intake and possibly a cheap ported throttle body as well.
05-04-2009, 05:19 PM
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i need to find out if the LS6 intake bolts right up onto the 98. still reading and trying to collect as much info as possible in my short time here.
oh, and the rod bolts are POS in the 98's as well, will definately be replacing those also, HA !!!!