Modded Mustang 1/8 Mile Let Down :(

88modstang · Sep 12, 2012

Took my modded 88 mustang to run the 1/8th and came back disappointed.Got schooled by my buddies stock ls1 trans am which sucks.

This is my mods:

88 mustang gt
302 mass air conversion
trickflow upper with spacer
bbk equal length headers
bbk 75mm throttle body
bbk cold air intake
bbk frame ties
70 mm cobra map sensor
msd coil,wires,cap&rotor
cobra computer
24# injectors
msd 6al
underdrive pullies
190 lph fuel pump
gt 40 heads
tremec 5 speed
3:73 in stock rear axle
aluminum drive shaft

I could not get out of the 9's in the 1/8 mile
2.4 short times...spinning bad 1&2nd....need drag radials
mph is only 77 mph in 1/8th running 9.3-9.6
Was hoping to run mid 8s at least.

My buddies stock 99 ls1 trans am was running 8.90's!!!!
I know tires will help but 77 mph seems slow for my mods.

Bullitt347 · Sep 12, 2012

There are a lot of different things that go into making a car go down the track quick. It may be your driving, or it may be the car, or both. The potential is there for more. I have seen a different driver in the same car be worth over 1/2 of a sec. There are so many things that can cause slow et's that to speculate is............well speculation.

boostfrk · Sep 12, 2012

He's right. Practice goes a long ways towards making better drivers out of so-so drivers.

Was this your first time at the track?

88modstang · Sep 12, 2012

Yes...first time with this car,first time racing a 5 speed.I know i left alot on the table as far as ET goes.My 60 ft times are terrible (2.4).My hurst shifter sucks,missed 2nd gear at least 3 times.Im just shocked that im only getting 77 mph with my mods.

SteedaGT9150 · Sep 12, 2012

88modstang said:
Yes...first time with this car,first time racing a 5 speed.I know i left alot on the table as far as ET goes.My 60 ft times are terrible (2.4).My hurst shifter sucks,missed 2nd gear at least 3 times.Im just shocked that im only getting 77 mph with my mods.

go ahead and blame the missed shifts on your shifter, that'll make things better.

JordanB21 · Sep 12, 2012

I would find a strip of backwoods roads and practice, I have a road about a quarter mile long but there's no area to break, anyways, it's where I practice.

srtthis · Sep 12, 2012

What gears you got? I went 7.9 in my gt40 car

Noobz347 · Sep 12, 2012

88modstang said:
Yes...first time with this car,first time racing a 5 speed.I know i left alot on the table as far as ET goes.My 60 ft times are terrible (2.4).My hurst shifter sucks,missed 2nd gear at least 3 times.Im just shocked that im only getting 77 mph with my mods.

Let's talk about that for just a sec...

88modstang said:
Took my modded 88 mustang to run the 1/8th and came back disappointed.Got schooled by my buddies stock ls1 trans am which sucks.

This is my mods:

88 mustang gt
302 mass air conversion - worth nothing in terms of HP
trickflow upper with spacer- Spacer - worth nothing in terms of HP
bbk equal length headers- Long Tubes probably worth another 7 to 10 HP to the wheels and more in torque
bbk 75mm throttle body
bbk cold air intake - worth nothing in terms of HP
bbk frame ties
70 mm cobra map sensor- TB and MAF sensor openings are mismatched restricting flow to your TB
msd coil,wires,cap&rotor - worth nothing in terms of HP
cobra computer - worth nothing in terms of HP
24# injectors - worth nothing in terms of HP
msd 6al - worth nothing in terms of HP
underdrive pullies- Might be worth a whopping 3 HP to the wheels. An electric fan would net you more.
190 lph fuel pump - worth nothing in terms of HP
gt 40 heads
tremec 5 speed
3:73 in stock rear axle
aluminum drive shaft

I could not get out of the 9's in the 1/8 mile
2.4 short times...spinning bad 1&2nd....need drag radials
mph is only 77 mph in 1/8th running 9.3-9.6
Was hoping to run mid 8s at least.

My buddies stock 99 ls1 trans am was running 8.90's!!!!
I know tires will help but 77 mph seems slow for my mods.

What's left? Heads, intake (with stock lower?), driveshaft, and restricted throttle body. Does that intake even facilitate a 75mm TB?

Concentrate on putting the power that you DO HAVE down the ground with practice and suspension mods. In an 8th mile, you should be able to stomp him out all day long.

gearheadboy · Sep 12, 2012

You can have all the motor in the world but if you can't put it to the ground I'll beat you in mom's Chevette every time! Put a tire on it, practice your shifts, and I've never seen a 70mm map sensor but you could use a 75mm maf sensor.

srtthis · Sep 12, 2012

Missed you have 3.73s... Gotta learn to put power down

RangerJoe · Sep 13, 2012

I ran a 9.04 on street tires, best 60ft was something like 2.21 I think. Went to a mild drag radial and went 8.48 first time out. Get some tire and practice, just like everyone else said.

Good luck with it!
Joe

zearchyo · Sep 13, 2012

interesting.

Noobz347 · Sep 13, 2012

zearchyo said:
interesting.

Good talk.

88modstang · Sep 13, 2012

Thanks for the tips,Going to buy some drag radials and practice.Also plan on getting the car on a chassis dyno to get it tuned.I bought the car like this so im not sure if there is any work done to the bottom end or heads.It does sound like it has a bigger cam in it.

madspeed · Sep 13, 2012

tire, traction, and tires makes all the dif!

Sent from my rooted, rommed Galaxy Nexus....

88modstang · Sep 13, 2012

It spins like its on ice 1st and 2nd gear,i dont wanna get anything too sticky with the stock axles and rear end.Im not looking to make a drag car out of it,i just wanna put down a respectable time for what i have.

gearheadboy · Sep 13, 2012

Hook it up! Forget about having stock axles. You won't break um

95BlueStallion · Sep 13, 2012

Once you have drag radials, you dont necessarily have to drop your clutch off the line. Feathering it out and flooring it once fully engaged will work well and be smoother than dropping it anyway. With street tires, first gear is almost useless. But once you get that launch down pat and have a good gripping tire, I bet you will be happy.

clement · Sep 13, 2012

that gt40 head car should have enough motor to go 7s at mid 80s. an 8.90 ls1 is a turd. my bolt on ls1 went 7.90s@87.

Gearbanger 101 · Sep 13, 2012

How does one only have a Trick Flow upper intake on a 5.oL OHV?

Modded Mustang 1/8 Mile Let Down :(

88modstang

New Member

Bullitt347

I have been doing it wrong this whole time

boostfrk

88modstang

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SteedaGT9150

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JordanB21

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srtthis

the guy doing it does every local racers rear end

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

gearheadboy

srtthis

the guy doing it does every local racers rear end

RangerJoe

I leave the horn on while driving

zearchyo

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Noobz347

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88modstang

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madspeed

Colonel Mustard

88modstang

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95BlueStallion

My assy trans to myself

clement

Gearbanger 101

Straight Outta Locash

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