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MS4 Cam LS6 heads trouble???

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Old 07-21-2008, 12:47 AM
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Default MS4 Cam LS6 heads trouble??? (start up video added)

finished installing h/c and I started it and it idled great, but the third start after a couple of adjustments (tightening header bolts, adjusting coolant and oil levels) the car would continually die. I was wondering if it is just the tune, since the cam is slightly larger??

Last edited by nova2427; 07-21-2008 at 04:31 PM.
Old 07-21-2008, 12:59 AM
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large? no it is just a tad over stock
Old 07-21-2008, 01:17 AM
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my car did the same thing with the MS3 before tune, i wouldn't worry about it at all, just tune it
Old 07-21-2008, 09:58 AM
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Originally Posted by PREDATOR-Z
large? no it is just a tad over stock

lol...
Old 07-21-2008, 10:00 AM
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drill a larger hole in the throttle body, this is common and easily fixed just dont go too big.
Old 07-21-2008, 10:17 AM
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Originally Posted by MasterMindMotorsport
drill a larger hole in the throttle body, this is common and easily fixed just dont go too big.

Do not do that before you tune, do that as a last resort. If it is just a matter of driving to the tuner, just open the TB blade screw a bit to get you going. Do not go WOT. Just part throttle to the tuner.
Old 07-21-2008, 12:25 PM
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you should not have to drill the TB with a stock cube motor, you only do that after the tune if the IAC motor still can't bring on enough air at idle.
Old 07-21-2008, 01:19 PM
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I'm assuming it was running off the default for the first couple of starts.....that is good news, other than a smoking header (coolant spill), exhaust leak and tune....I'm ready to roll.
Old 07-21-2008, 01:27 PM
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large? no it is just a tad over stock


LOL,That is funny
Old 07-21-2008, 02:35 PM
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Surely its just that its not tuned, you are probably over worrying that something is wrong, start it from a cold start and let it idle till it gets to operating temperature, that will help it learn the new idle and help it till you get the tune.
Old 07-21-2008, 04:19 PM
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Video of the first start.

http://youtube.com/watch?v=_dbO5suLyzM
Old 07-21-2008, 04:26 PM
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Originally Posted by 00pooterSS
lol...
x2

of course your car doesnt want to idle!!
Old 07-21-2008, 05:51 PM
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Originally Posted by MasterMindMotorsport
drill a larger hole in the throttle body, this is common and easily fixed just dont go too big.
Come on, you can trust this guy...10 posts,, an Fbod,TBSS...

Drilling a hole in the TB... hell that's some great advise..
Old 07-21-2008, 06:15 PM
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I'll just adjust the throttle body so that it is open slightly, until I get it tunned....
Old 07-24-2008, 10:24 PM
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i don't know where these guys get there answers from, but i'm running the MS4 110-lsa, LS6 STG 2.5 heads milled, 36lbz, 255pump, 1-7/8, X-pipe, M6, STG 3+ clutch, 12-bolt, 473/456, car doesn't have idoling problems check the tune out for sure and i'm on a stock cube motor.
Old 07-24-2008, 11:17 PM
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Originally Posted by LSWNDR
i don't know where these guys get there answers from, but i'm running the MS4 110-lsa, LS6 STG 2.5 heads milled, 36lbz, 255pump, 1-7/8, X-pipe, M6, STG 3+ clutch, 12-bolt, 473/456, car doesn't have idoling problems check the tune out for sure and i'm on a stock cube motor.
did you read the whole thread? he isn't tuned yet.
Old 07-24-2008, 11:21 PM
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Originally Posted by LSWNDR
i don't know where these guys get there answers from, but i'm running the MS4 110-lsa, LS6 STG 2.5 heads milled, 36lbz, 255pump, 1-7/8, X-pipe, M6, STG 3+ clutch, 12-bolt, 473/456, car doesn't have idoling problems check the tune out for sure and i'm on a stock cube motor.
LSWNDR, what are you running for an intake manifold etc? very nice numbers.
Old 07-25-2008, 02:19 AM
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stock Ls6, Ported throttle body. I'm about to get a 92/92 Fast, Pro Charger, and a SixSpeedsInc. STG 3 + Transmission upgrade. Last weekend i raced a 10.98 03 cobra that my friends seen run at pinks STL with a automatic manual valve body on the street from a 40 roll in 3rd gear and we were door to door. He would prolly murder me from a dig lol he hooks like glue but he ***** when my LSWNDR pulls next to him on at about 65 lol.
Old 07-25-2008, 02:23 AM
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I'm having problems getting my car tuned as well guys i just can't figure out the idoling up because i have the opposite problem. Hope you have a good tuner whats the LSA on you cam? Mine is a 110-LSA and a tech sponsor told me it's a bitch tuning
Old 07-25-2008, 09:36 AM
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I went with the 112-Lobe separation. But I heard that 111 is standard, at least that is what TSP told me.



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