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went to track, dissapointed.

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Old 05-14-2005, 08:49 PM
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silver91gt
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Default went to track, dissapointed.

well, yesterday I went to the track, and I am happy with my MPH, but not my ET.

last year I ran a best of 14.48 @ 94MPH
I had the stock cam, stock intake, k&n sucking hot engine air, 1.7 roller rockers, and a 73mm mass air meter, and 70mm throttle body. I ported the upper to 70mm too,
and a msd blaster tfi coil.
1 5/8 headers with an x pipe and flowmaster american thunder catback.
and the rest was stock.


yesterday I ran a best of 14.34 @ 96.3MPH

since last year, I added my MSD6A, professional products intake,1.6 roller rockers, b-303 cam, bbk cold air intake, march underdrive pulleys, 24# injectors, lakewood 90/10 struts and 50/50 shocks, I deleted my A/C and smog took them both out,
I had to go back to the stock throttle body because my professional products one started leaking at the throttle shaft.
and I took all the sound deadning and the back seat out.
I probably lightened it by at least 100lbs.

my clutch slips now too. I have a centerforce to replace it with.

I know the stock throttlebody is a bottleneck, but I plan on getting another 70mm tb.
the air at the track was cool too.
I dont know why I only gained 1 tenth and 2MPH.

and also about 3/4 ways down the track I noticed the rear end started bouncing slightly.


I was hoping on breaking into the 13's, but I dont know why I didn't.


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Old 05-14-2005, 08:53 PM
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silver91gt
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Default RE: went to track, dissapointed.

up
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Old 05-14-2005, 09:06 PM
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sastangman
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Default RE: went to track, dissapointed.

do you have stock heads? if you do that is your problem your heads
are restricting everything
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Old 05-14-2005, 09:16 PM
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silver91gt
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Default RE: went to track, dissapointed.

ya, but last year I had less mods and was doing about the same times.
I have seen 5.0s with stock heads run in the high 12's on motor.
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Old 05-14-2005, 09:17 PM
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91LXstanger
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Default RE: went to track, dissapointed.

thats wierd.....i dont know bro.
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Old 05-14-2005, 09:22 PM
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Chris C
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Default RE: went to track, dissapointed.

It depends on how bad the clutch is slipping but that could be a big problem. Heads and an intake would really help the rest of your mods. I bet once you replace your clutch you will pick up some. Let us know how it goes.
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Old 05-14-2005, 09:26 PM
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silver91gt
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Default RE: went to track, dissapointed.

I already have an intake.
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Old 05-14-2005, 09:50 PM
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92hatchLX
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Default RE: went to track, dissapointed.

He's talking about the upper and lower manifolds, not you're CAI.
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Old 05-14-2005, 10:25 PM
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33boggers
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Default RE: went to track, dissapointed.

Check my post from last night I had a great run with way less mods on my 91 notch back.https://mustangforums.com/m_523021/tm.htm I also have a new clutch to.
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Old 05-14-2005, 11:02 PM
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silver91gt
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Default RE: went to track, dissapointed.


ORIGINAL: 1991_5.0_Convertible

He's talking about the upper and lower manifolds, not you're CAI.
I know, I have a professional products intake, upper and lower, it is an edelbrock rpm clone.

and from my intake I have a bbk fenderwell unit.
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