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Generation III Internal Engine 1997-2006 LS1 | LS6
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ms4 owners chime in please!

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Old Mar 25, 2008 | 12:32 AM
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Default ms4 owners chime in please!
hey guys just installed ms4 w/ yank ss400. the car has the basic bolt ons except for intake/tb. im getting the car tuned april 7th and debating on how the car should be tuned either speed density or with the maf. im curious as to what other ms4 users used to tune their car.
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Old Mar 25, 2008 | 12:49 AM
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Originally Posted by rjkZ28
hey guys just installed ms4 w/ yank ss400. the car has the basic bolt ons except for intake/tb. im getting the car tuned april 7th and debating on how the car should be tuned either speed density or with the maf. im curious as to what other ms4 users used to tune their car.
w/ ma.f..
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Old Mar 26, 2008 | 12:08 AM
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any others?
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Old Mar 26, 2008 | 01:44 AM
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probably get better results in the tuning PCM diagnostics section.......
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Old May 28, 2008 | 12:10 AM
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got one but not tuned it yet
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Old May 28, 2008 | 06:54 AM
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i sent my computer off and let texas speed do it. ran great
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Old May 28, 2008 | 04:38 PM
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Originally Posted by dazman
i sent my computer off and let texas speed do it. ran great
The ran great, not runs great thing worrys me..what happend lol?
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Old May 28, 2008 | 04:39 PM
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Originally Posted by camaro_ss_97
got one but not tuned it yet
I am also a member of the not yet tuned club.
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Old May 28, 2008 | 05:15 PM
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i'm new to this site, but my car is getting tuned for speed density friday because the few people i've talked to said it makes a world of difference
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Old May 28, 2008 | 09:50 PM
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Originally Posted by Camaro396
The ran great, not runs great thing worrys me..what happend lol?


HAHAHHAHAHA SO IT DID!!! yeah, it did run good, till a rod let go and blew sky *** high. now i have a tsp 408 with giant cam


mike
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Old May 29, 2008 | 03:58 PM
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I've got the MS4 cam, dyno tuned by TSP - Great power, great daily driver even with MS4 and 4000 stall - MAF still in place.
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Old May 29, 2008 | 04:25 PM
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Originally Posted by rjkZ28
any others?
When I had that cam, it ran best in Speed Density Open Loop mode, but Speed Density Closed Loop ran alright as well. Closed Loop Maf was a pain, but I was tuning it in the middle of the summer (90 to 100 teens temperatures).
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Old May 29, 2008 | 08:11 PM
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i just sent my pcm to texas speed, best $225 i ever spent. But i have read it again and again, go MAF whenever you can, it is more forgiving. That is unless you know a badass tuner that can do the speed density tune.
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Old May 29, 2008 | 10:17 PM
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Dude, tune it with the MAF, it'll be perfectly fine under 450
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Old May 30, 2008 | 01:37 AM
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I know this mite sound stupid but what is the dif?
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Old May 30, 2008 | 09:31 AM
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MAF tune relies more on computer calibrations and calculations to correct for fueling at all times. Speed Density is basically at this throttle position and this MAP value you have this setpoint of fuel.
Last edited by JoeyGC5; May 30, 2008 at 09:37 AM.
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Old May 30, 2008 | 06:39 PM
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Speed density dumdumdum..

Thats what I went with... Till I spun a rod bearing and went the 408 route =]
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