Mustang wall!!!!!

94GTHockyplyr · Jun 28, 2009

My mustang hits a wall at 4k in 3rd and 4th gear and i dont know why it sucks cause i got walked by my friends civic ..
i have HCI swap 355 gears short throw shifter i ran a 14.7 in the 1/4 someone help me
also what other performance mods should i do to put me in the 13s but still DD

94 DropTop · Jun 28, 2009

first fix the problem with your car somthing is fucked up, or you cant drive for shit.

D3VST8R96GT · Jun 28, 2009

describe hitting a wall

Matts50 · Jun 28, 2009

My immediate guess would be a lack of fuel. But there are way too many unknowns of what is going on. First of all, what do you have for H/C/I? I'd assume you have exhaust, but what else do you have for mods?

LAFENATU · Jun 29, 2009

Damn.

Something is definitley wrong. I ran a 14.9 when the car was completely stock other than full exhaust.

94GTHockyplyr · Jun 29, 2009

94 DropTop said:
first fix the problem with your car somthing is ****** up, or you cant drive for ****.

Well obviously something is fd or else i wouldnt of posted but thanks for the drving tips tony stewart....

For it hitting the wall when i have it to the floor in 3rd and 4th it starts to seem that it sputters. the rpm's have a hard time going over 4000. Mods are GT40p Heads, Edlebrock Intake, small cam, full o/r exhaust, 5.0 shifter, and thats basicly it. As for the lack of fuel it def cant be that because my car smells like its running to rich.

As for the trash tlkn im new to this so if u cant answer my question or help me then let it ride

brad94GT · Jun 29, 2009

check ur timing

wayne94mustang · Jun 29, 2009

to question your driving skill is in no way talking trash.

normally a poorly worded "why's my car so slow" thread comes up skill is the first thing that comes to mind......don't forget, we don't know you so don't take it personal.

94GTHockyplyr · Jun 29, 2009

i have not checked the timing but will plan on it if after tomorrow wire i will change my plugs and does not fix it.... BTW this thread was not started to say that my car was slow in any way it was started to see if anyone can diagnose my car problem

o and sorry about the first and second post it was my friend who started it i was not next to him while he started it.

Matts50 · Jun 29, 2009

With what you're running, the stock injectors could be being pushed to the max. But it def could be a timing/spark issue. Do you have an adjustable fuel pressure regulator? Try turning the FP up a bit if you haven't done so.

94GTHockyplyr · Jun 29, 2009

Matts50 said:
With what you're running, the stock injectors could be being pushed to the max. But it def could be a timing/spark issue. Do you have an adjustable fuel pressure regulator? Try turning the FP up a bit if you haven't done so.

No i do not have an adjustable fuel reg. my mods were listed in my second post. i will be changing the spark plugs and wires tomorrow to see if that will help.

CC'S95GT · Jun 29, 2009

while your doing the plugs and wires clean the maf and iac also.

Rice_slayer · Jun 29, 2009

When I ran my car at the strip, it had a constantly rough and "jumpy" acceleration, meaning it just accelerated choppy and with just my stock engine and 3.73s, it ran 16.1. After that I A) replaced the MAF(That made a HUGE difference, smooth accelleration) and B) Re-did exhaust and took off the factory cats with a new o/r H pipe. Both helped a bunch, but the MAF smoothed everything else. I would check your MAF first, My car was sputtering in 4th in the 1/4 mile and was having issues accellerating past 130kph in 4th...

95BlkCobra · Jun 29, 2009

clean up the maf and iac but you might want to upgrade fuel injectors and maf sensor to match. i had a problem a while ago, my car would hit a wall at 3500 rpms in every gear it turned out my maf was shot

Steven · Jun 29, 2009

Sounds like you don't know what your doing. In either mechanics or driving. If you didn't check the timing right away then I suggest having someone look at it.

94GTHockyplyr · Jun 29, 2009

Steven said:
Sounds like you don't know what your doing. In either mechanics or driving. If you didn't check the timing right away then I suggest having someone look at it.

well thanks for the reality check that im no mechanic or professional driver. as i said if the new plugs don't work i will be checking the timing. I will def look into changing out my maf because that seems to be what everyone says was the problem and it got fixed.

Steven · Jun 29, 2009

Not trying to sound like a dick, but I know I do. It's plain and simple. The three rules are to check:

1) fuel
2) spark
3) timing

Go from there. Until we know what situation your fuel and spark as well as timing sits at, theres little we can do.

Inspector13 · Jun 29, 2009

Sounds kinda like when my MSD box went bad. It was breaking up through the entire rpm band then would hit a wall at 4200 rpm and wouldn't go any higher.

I'd check for spark, fuel, and clean your sensors cause you should run way faster then that. With a very mild street H/C/I setup and bolt-on's and 3:73:1 gears I'm running high 12's/low 13's in the 1/4 (depending on my 60 foot, I really need stickier tires though. 1st gear is a joke).

94 DropTop · Jun 29, 2009

The asshole tude wont help you out here. If your first post you put "what other performance mods can i get to get into 13" this makes it sound like your just trying to throw money around to fix the problem. This is why i said fix the prob before you worry about the performance parts.

How old are the plugs? how old are the wires? why not check them first instead of maybe wasting money replacing them? I think you should check your timing first since its free aslong as you have a light. If you dont have a light i would highly advise in getting one. Another handy object is a fuel pressure guage to stick on your rail. I would try cleaning your MAF before replacing it. Its an expensive part.

94GTHockyplyr · Jul 1, 2009

Inspector13 said:
Sounds kinda like when my MSD box went bad. It was breaking up through the entire rpm band then would hit a wall at 4200 rpm and wouldn't go any higher.

I'd check for spark, fuel, and clean your sensors cause you should run way faster then that. With a very mild street H/C/I setup and bolt-on's and 3:73:1 gears I'm running high 12's/low 13's in the 1/4 (depending on my 60 foot, I really need stickier tires though. 1st gear is a joke).

I got it running alot better i got a new maf from the junk yard and new plugs and wires it seemed to be the maf that made the biggest difference. But yeah i think my car should def be in the 13s i just dont launch it from the line i have no suspension mods or tires so thats the biggest problem i also gotta put in the 3.73s that i got laying around.

94 DropTop said:
The ******* tude wont help you out here. If your first post you put "what other performance mods can i get to get into 13" this makes it sound like your just trying to throw money around to fix the problem. This is why i said fix the prob before you worry about the performance parts.

How old are the plugs? how old are the wires? why not check them first instead of maybe wasting money replacing them? I think you should check your timing first since its free aslong as you have a light. If you dont have a light i would highly advise in getting one. Another handy object is a fuel pressure guage to stick on your rail. I would try cleaning your MAF before replacing it. Its an expensive part.

Yeah i didnt post the first post about me knowing what i need to go faster right now i know i need suspension and tires from there maby get my heads sent to a shop, and start to build up my trans before i go supercharged. but thanks for all the help guys its running alot better now.