1994 5.0 Bogged down.. - Mustang Evolution

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Old 08-23-2012, 05:31 PM   #1
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1994 5.0 Bogged down..

My 1994 GT with full exhaust (Mac Long tube headers, pro chamber mid pipe and cat back, no cats) and cold air intake. I ran it against a stock Foxbody Stang and it creamed me by like 10 carlengths multiple times.. any suggestions why my car is slow. haha
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Old 08-23-2012, 05:44 PM   #2
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Are you sure you are running on all 8 cyclinders? Not to be funny, but sounds like you are not running right. Check your plugs first, then keep on checking the simple things. If you cant find anything, take it somewhere to be checked cause you should be way faster than that. Could also have sludge built up in the engine from over the years or older Castrol oil. When I ripped my 94 apart, I found sludge in it. Guy before me ( original owner ) said he only usef Castrol oil.
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Old 08-23-2012, 05:58 PM   #3
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With those mods you're still not going to beat a stock fox. Main reason is you have disadvantage of having the heavier car..
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Old 08-23-2012, 05:59 PM   #4
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Re: 1994 5.0 Bogged down..

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Originally Posted by XXSTEVEO66 View Post
With those mods you're still not going to beat a stock fox. Main reason is you have disadvantage of having the heavier car..
+1, foxes are extremely light
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Old 08-23-2012, 06:23 PM   #5
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Have you tuned ur stang according to your mods?
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Old 08-23-2012, 07:24 PM   #6
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Quote:
Originally Posted by sam13708
My 1994 GT with full exhaust (Mac Long tube headers, pro chamber mid pipe and cat back, no cats) and cold air intake. I ran it against a stock Foxbody Stang and it creamed me by like 10 carlengths multiple times.. any suggestions why my car is slow. haha
I have a 94 gt covertible with simiar mods. Be prepaired to lose alot. Until you get to serious mods our cars will be forever slow.thats why im trying to sell mine and get a notchback
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Old 08-23-2012, 07:26 PM   #7
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Quote:
Originally Posted by 98GTCONV
Have you tuned ur stang according to your mods?
No reason to tune for those mods on a fox. Newer cars maybe. Most of the time you can even get away with full hci without tuning, but usually it would still benifit.
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Old 08-23-2012, 07:29 PM   #8
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94 isn't a fox. My 98 actually was faster stock. I need to get it tuned asap
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Old 08-23-2012, 07:30 PM   #9
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Quote:
Originally Posted by 98GTCONV
94 isn't a fox. My 98 actually was faster stock. I need to get it tuned asap
Oh yeah. I forgot 94. But he stills isn't gonna benifit that much with those mods.
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Old 08-23-2012, 07:35 PM   #10
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I asked my local dyno shop and they said with my cai and Hpipe no cats, without a tune im actually risking burning my pistons.
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Old 08-23-2012, 07:38 PM   #11
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Quote:
Originally Posted by 98GTCONV
I asked my local dyno shop and they said with my cai and Hpipe no cats, without a tune im actually risking burning my pistons.
what car you have? a 98? i dont know much of the 4.6. but i just dont see it on a 94

---------- Post added at 07:38 PM ---------- Previous post was at 07:37 PM ----------

do 94s have o2s past the cat? maybe thats the reason from the cat removal? idk
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Old 08-23-2012, 07:43 PM   #12
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Quote:
Originally Posted by XXSTEVEO66
With those mods you're still not going to beat a stock fox. Main reason is you have disadvantage of having the heavier car..
+1 94-95 much heavier then fox!

---------- Post added at 06:43 PM ---------- Previous post was at 06:39 PM ----------

Well on my 94 with my HCI and full exhaust I needed a tune and OMG!!! After the tune the car drives awesome! And honestly the only thing I changed back to stock were my under drive pulleys , I dynoed a whopping 3 rwhp (lol )more with stock pulleys!!!
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Old 08-23-2012, 07:44 PM   #13
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Quote:
Originally Posted by WhiteCobra94

+1 94-95 much heavier then fox!

---------- Post added at 06:43 PM ---------- Previous post was at 06:39 PM ----------

Well on my 94 with my HCI and full exhaust I needed a tune and OMG!!! After the tune the car drives awesome! And honestly the only thing I changed back to stock were my under drive pulleys , I dynoed a whopping 3 rwhp (lol )more with stock pulleys!!!
yeah. were talking exhaust and cai though. i maybe wrong, but i just dont see tphis car needing a tune.
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Old 08-23-2012, 07:57 PM   #14
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Quote:
Originally Posted by dreamstang

yeah. were talking exhaust and cai though. i maybe wrong, but i just dont see tphis car needing a tune.
O yea, a tune for exhaust and cai is not necessary!
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Old 08-23-2012, 08:02 PM   #15
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Exhaust with no cats? Still not necessary?
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Old 08-23-2012, 08:06 PM   #16
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Quote:
Originally Posted by 98GTCONV
Exhaust with no cats? Still not necessary?
maybe on a 4.6 but not on a 5.0
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Old 08-23-2012, 08:07 PM   #17
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Well im getting it done before and after. Ill let you know the difference.
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Old 08-23-2012, 08:09 PM   #18
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Quote:
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Well im getting it done before and after. Ill let you know the difference.
im still confused. you have a 98 right?
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Old 08-23-2012, 08:12 PM   #19
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Yes 98 4.6L. Not a fox or 5.0.
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Old 08-23-2012, 08:16 PM   #20
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yeah. then you need a tune.
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Old 08-23-2012, 08:31 PM   #21
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Quote:
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yeah. then you need a tune.
^This is true
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Old 08-24-2012, 01:11 AM   #22
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Thanks, I am definitely going to replace plugs and wires and get me a chip and have it tuned to what I have on it right now. Thanks for the help. much appreciated.
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Old 08-24-2012, 02:09 AM   #23
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Quote:
Originally Posted by sam13708
Thanks, I am definitely going to replace plugs and wires and get me a chip and have it tuned to what I have on it right now. Thanks for the help. much appreciated.
Just a FYI a chip and tune is going to be $550-$700
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Old 08-24-2012, 04:04 AM   #24
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I understand that he will be slower than a stock Fox, but not by as much as he said.

I know for a fact thst there are 2 O2 sensors per side (upper and lower). Good call and might want to check into that.
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Old 08-24-2012, 11:18 AM   #25
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I can get an SCT chip with three free tunes for around $300 from American muscle I believe.
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Old 08-24-2012, 03:50 PM   #26
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Quote:
Originally Posted by sam13708
I can get an SCT chip with three free tunes for around $300 from American muscle I believe.
I did that and my car ran like
Crap , ended up having it dyno tuned !
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Old 08-24-2012, 03:51 PM   #27
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They are turtles but they look good doing it
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Old 08-24-2012, 09:15 PM   #28
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Just to show that you are roughly 300lbs heavier. Of course it varies a bit on aod, manual, notch, hatch, and vert but a general idea of the difference.
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Old 08-24-2012, 10:16 PM   #29
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ya I see that but It was like the fox had a supercharger. I was wasaaaayyyyyyy behind it. I'm actually thinking its a vacuum leak somewhere now...
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Old 08-24-2012, 10:34 PM   #30
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You manual or aod?..and same question for the fox..
But yeah if he burned you that bad somethin is up..
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Old 08-24-2012, 10:54 PM   #31
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Manual 5 spd with stage 1 Centerforce clutch.

---------- Post added at 08:54 PM ---------- Previous post was at 08:53 PM ----------

mine is 5spd with Centerforce clutch and his manual stock clutch.
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Old 08-25-2012, 06:44 AM   #32
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When I had my 94 with all the mods, I never got it tuned. It still crushed everyone.

---------- Post added at 07:44 AM ---------- Previous post was at 07:41 AM ----------

You can see my mods I had done in the 1979-1995 section under (a little more)
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Old 08-25-2012, 07:52 AM   #33
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Cool I'll check it out. I actually am almost sure it's a vacuum leak now. stupid vacuum system. 8o
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Old 08-25-2012, 08:13 AM   #34
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Quote:
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Cool I'll check it out. I actually am almost sure it's a vacuum leak now. stupid vacuum system. 8o
Get a can of starting fluid or carb cleaner and spray around all the vacuum lines. If it idled up, then the spot you sprayed is where the leak is at.
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Old 08-25-2012, 05:10 PM   #35
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thanks will do.
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