T O P I C R E V I E W
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FOXX5.0
Member # 9094
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posted
So after installing gt40 heads off 94/95 cobra and explore manifold the car feels like it's holding back in power timing is set at 12 I did notice the TFI module position is diff then my friends mustang that's timed the same at 12 idk if that matters Car is a 1990 mustang 5 speed Stock air box Stock injectors Stock headers
Parts list of the car Gt40 heads(stock roller rockers) E303(idk if it was degreed) Explorer manifold 65mm throttle body X pipe no cats Double roller timing chain New plugs New wires
It feels really slow any info would be greatly appreciated
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93 5.0
Member # 12418
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posted
I have the same set up but I have a cold air and long tubes and mine doesn't feel slow maybe you need more air flow to help them
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FOXX5.0
Member # 9094
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posted
My last 93 with full exhaust and 355 gears pulled way harder then this one did maybe my stock gears are not helping either
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CoyoteMike
Member # 13748
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posted
quote: Originally posted by FOXX5.0: So after installing gt40 heads off 94/95 cobra and explore manifold the car feels like it's holding back in power timing is set at 12 I did notice the TFI module position is diff then my friends mustang that's timed the same at 12 idk if that matters Car is a 1990 mustang 5 speed Stock air box Stock injectors Stock headers
Parts list of the car Gt40 heads(stock roller rockers) E303(idk if it was degreed) Explorer manifold 65mm throttle body X pipe no cats Double roller timing chain New plugs New wires
It feels really slow any info would be greatly appreciated
I would check compression, makes sure the gaskets are ok
Maybe throw some more timing at it and see how it responds? (just watch for ANY detonation)
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FOXX5.0
Member # 9094
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posted
Thanks I'll give it a try
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Marks93
Member # 11130
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posted
The 3.55's will help considerably. How's your exhaust system? Cats clogged? What kind of mufflers? When I first bought mine all stock except glasspack mufflers, it was kind of a lazy dog! I changed out the glasspacks for flowmasters and it ran much better. Then adding on the 3.55's and it really woke up. Changing to 1-5/8" headers will help as well. [ 2016-03-27, 09:08 AM: Message edited by: Marks93 ]
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WildStangZ
Member # 10077
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posted
24lbs injectors , needs more fuel. While ur add it, do the headers.
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i
Member # 12534
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posted
What spark plugs are you running? Are they gapped to .52?
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FOXX5.0
Member # 9094
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posted
I'm running autolite coppers I don't remember the number but I asked for 94 cobra spark plugs at the auto part store I'll double check the gap on them
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Blind
Member # 3052
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posted
2.73/3.08 gears and e-cam is a great combo for a slug
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Martinna
Member # 12493
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posted
Check the EEC for error codes?
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