94 mustang gt too slow

[mus5.0tang]

hey guys i got a 94 mustang gt. its auto, and still has stock 4 cats and stock intake. has 3.73s in the rear. it just seems really slow on acceleration. it takes a couple seconds just to get the rpms up enough to get a good accel. is this just becuase those horse eating cats, bad intake, and stock throttle body, or is this something mechanically wrong? what can i do to make this thing go fast?

[Muscletang]

Yeah I'd say something is wrong when you have 3:73s in the rear and your acceleration is bad. I know that when I took the baffle out of mine and took the dirty air filter out and put a K&N in the thing seemed to open up a bit.
I really wouldn't know where to stary on yours though. See if your air filter is dirty though because that will eat horsepower. That'd be a good place to start. Also, after a while the cats will get dirty and start to block up the exhaust a bit. That could be another problem but your car would have to have some miles on it before that starts up.

[mus5.0tang]

well the cars coming up on 99k on it so that all sounds right. im looking at getting an o/r h pipe right now. if i did would i have to get mil eliminators to keep the check engine light off?

[bigbob]

my 95 gt...when u hit the go pedle it feels like it lags for about a hlaf second before it really starts to go. is this what you mean? and then at 3k rpm it starts to really pull. i was wiht the understanding it was common due to my firends 94 with a similar problem. hmm i cant really help you that much but just for kicks, define slow. are u comparing it to another stock mustang? or to another sports car or somthing like that? a stock 94 mustang {especially auto} should not be expected to be the fastest thing on the road. im not saying thats what u wanted but, my 95 auto was disapointingly slow when i first got it...i put underdrive pullies on/ advanced the ignition timeing/ riped out that pesky air snorkle/ and pulled out back seats/sparetire/jack etc. and new air filter/fluids and all that stuff. it woke it up nicely but it still in no vette. if u are used to faster cars there may not be a problem. althouh i would really think the gears would wake it up alot

[mus5.0tang]

that is exactly what i am talking about. the like half second of delay untill the rpms go up and the car goes. i am used to an 88 mustang which had a cold air, headers, no cats so i could just be normal. but i must say that i think the root of the main problem lies in the fact that stock the car comes with 4 cats!!! i am getting rid of them next weekend. any suggestions on x-pipes?? im looking at bbk

[bigbob]

hmm...are u set on x pipes? im not a fan of the sound but with certian aplications they do seem to provide the right touch. hmmm lets see. what are you going to pair it with if anything? i would still not think that that would be your main problem...i have a frined with a 94 gt...manule...with bb shorty headers...some h pipe...and flowmasters...and then a b&m short throw shifter. my 95 runs right with him all the way up with the stock midpipe. after u clearing up what ur used to and that u didnt have to high expectations, there has to be somekinda problem... it shoulnt be that slow. no smoke out of the pipes? any visual thing that would Q a problem? im stumped. maybe there is a weight set in the spare tire well...haha jk

[mus5.0tang]

i not dead set on the x-pipe. im between the bbk x or the mac h-pipe. it will be going along with either a magnaflow or slp exhaust and eventually mac shorty headers. no uncommon smoke and no vision exept for the fact that a little bit ago while reving the engine at standstill my buddy notice a few black peices of the honeycom of the cat fly out of the tailpipe. thats what leads me to think it could be that.

[bigbob]

ahh. my gues is that the insides of the cat are messed up...its giving the o2 sencers weird signals and it is fudging up the proformance.

[mus5.0tang]

which do you think i should go with, the mac h-pipe or the bbk x-pipe. and what exactly will the difference of the two be.

[bigbob]

and x pipe will decrease the back pressure a ton. if u plan to run long tube headersa and a slp or magna pack{both straight threw mufflers} it would not give you optimal proformance on a car wihtout a power adder to make up for it or some knarly 347 stroker. it might be save a few hp if you go with an h pipe. as for mac...i have herd a lot of stories knocing macs headers but alot of people love the prochamber h pipe that mac makes. if u go x pipe , magna packs and a dr. gas x pipe sound pretty good. if you go slp any x pipe will osund really raspy and farty as the slp is already failry raspy. if u go slp...i would use macs prochamber. if $ is an issue any off road h will do ya but boy itll be loud. but i love it loud, if u can deal with it its great.

[mus5.0tang]

alright man well thanks alot for the help... cant wait to get this stang loud and cruising good.

[bigbob]

any time...goodluck