98GT vs 91TA

[Murder after Midnight]

My cousin want's to race, he has a 91TA with a 305 with flowmaster exhaust, I have a 98 mustang GT with MAC exhaust and K&N intake, Both cars are auto's, it's just for fun but who do you think will win.
BTW I know,I know slowest race ever lol

[TwistedArticSS01]

def the 98 Gt.. the 305 was a piece....

[Murder after Midnight]

^thanks for the heads up man

[Johny Utah]

305 TBI will not give you a run at all. A 305 TPI will be a little better race.

[john]

What day do you plan on having this race?

[Murder after Midnight]

305 TBI will not give you a run at all. A 305 TPI will be a little better race.


Yeah he has the 305TPI, so well see

[Murder after Midnight]

What day do you plan on having this race?

Soon man I'll let you guy's know what happens

[BIG D's SS]

Damn do ya'll have enough time to race. If ya'll start when the sun comes up it will be close to dark by the time ya'll get done.LOL

[john]

Soon man I'll let you guy's know what happens

what day do you plan on finishing?

[01mmmz28]

the GT will smoke'em good.

the 305 in 1991 has 2 different ratings, 205hp--285TQ and 230HP--300TQ. Plus you have to consider that the 1991 will most likely have high mileage and be worn out a little. So, Yes, you will smoke him.

here are the stats:
http://www.phy.duke.edu/~hartley/iroc/iroc_specs.html

[john]

I'm picturing a race like this:

http://slacker.com/things/race.php

[91Z28]

the GT will smoke'em good.

the 305 in 1991 has 2 different ratings, 205hp--285TQ and 230HP--300TQ. Plus you have to consider that the 1991 will most likely have high mileage and be worn out a little. So, Yes, you will smoke him.

here are the stats:
http://www.phy.duke.edu/~hartley/iroc/iroc_specs.html

The only 305s with 230 hp were the Manuals with the G92 option.

[Murder after Midnight]

Damn do ya'll have enough time to race. If ya'll start when the sun comes up it will be close to dark by the time ya'll get done.LOL


Man I even said in my first post it was going to be a slow race and yet you still had to take shot's come on man your better than that

[Murder after Midnight]

the GT will smoke'em good.

the 305 in 1991 has 2 different ratings, 205hp--285TQ and 230HP--300TQ. Plus you have to consider that the 1991 will most likely have high mileage and be worn out a little. So, Yes, you will smoke him.

here are the stats:
http://www.phy.duke.edu/~hartley/iroc/iroc_specs.html

Thanks man

[BIG D's SS]

Man I even said in my first post it was going to be a slow race and yet you still had to take shot's come on man your better than that

I put LOL next to it. I am just giving you a hard time. I didn't mean nothing by it just some good fun.

[Murder after Midnight]

I put LOL next to it. I am just giving you a hard time. I didn't mean nothing by it just some good fun.


Okay my fault I overlooked that, everthing's cool man

[shua01ss]

[QUOTE=01mmmz28]the GT will smoke'em good.

the 305 in 1991 has 2 different ratings, 205hp--285TQ and 230HP--300TQ. Plus you have to consider that the 1991 will most likely have high mileage and be worn out a little. So, Yes, you will smoke him.



That 305 might be rated at 205 hp and 285 tq but the 4.6 that made its way into the 1996-1998 mustang gts aren't rated for much more. I am not sure of the weight on the 91 TA but the sn95 mustangs are pretty heavy and the ford aod trany was not known for its performance. I think that it should be a pretty close race but thats just my opinion :Popcorn:

[lee1rbc]

This could be a tight race.
A 91 T/A 305 auto could muster a 14.8 in its day. I think in a 1/4 mile the GT would catch the 305, but in a 1/8th mile I would give it to the T/A. The reason is auto T/A usually come with a 3.23 rear and the 700r4 has a 3.04 first = 9.82 ratio While the mustang probably has a 2.73 rear and the 4R100 has a 2.71 first = 7.40 ratio.

[01mmmz28]

^yes,true.......but consider how worn out most 91 models would be by now. High mileage will kill a 305's performance. I've driven a few, and they were dogs.....

[bloodxnightmare]

The GT will win. My friend has a 90 firebird with a 305 slightly modded, and my other friend has a 1996 mustang GT with flowmasters and the mustang beat the firebird by about 3 cars in a 1/4 mile.

[Camaro Fan]

I'm going to go against the grain here and say the TA takes it if it's running properly. First off their is quite a bit of evidence that the 91-92 305 TPIs got the 230hp versions cam regardless of tranny/G92, so the 205hp is regarded as underrated. The 85 305 TPI w/ a very similar cam (although non-roller) to the better 91-92 cam was rated at 215hp. Ratings picked up through the years by about 10 hp due to roller cam, the change to speed density, etc, there is no way the 91 is only making 205hp with the better cam... They also make around 290-300 ft-lbs of torque, not sure about the GT. I've heard of quite a few of these running low 15s/real high 14s running well bone stock. IMO they were making at least 215hp, I really think closer to 220-225... Significantly better than the much smaller "peanut" cammed 305 TPI autos of the previous years (other than the 85 TPI, the rest of the auto 305 TPIs up to 91 were peanut cammed, with no other change than the peanut cam change from 85 to 86 the 305 TPI dropped by 25hp to 190...).

Couple that with the fact that the GT is also a auto, and I've seen times at least as bad as 15.0s and it will at least be close IMO. The GM autos have always been better at least it seems to me. If nothing else the 700r4 the TA will have has a nice low 1st gear.

All this is presuming the 91 is actually in a decent state of tune though. Which despite what others have posted here is not abnormal for a decently up kept car, especially a relatively newer as thirdgen's go 91. Driver will also make some difference obviously, if one or the other launches like a total newb then thats it most likely...

Anyway, it could go either way and will be close IMO, but I think the 91 TA has more than a fair shot at walking away the victor... I'm figuring the exhaust mods basically balance out, but if I'm underestimating the benefit the better intake setup gives the GT then that might make the difference too though...

Will be very interested in the results, make sure you guys race a couple times and rule out a single blown launch, somebody getting the jump etc... And don't forget to post the results.

[SeVeReDiStOrTiOn]

I had a 89 iroc 305tpi...it was a torque monster down low, but the tpi setup chokes it pretty bad up top. A 98 gt is a straight dog....might start to walk up top though. If the TA can hook it I think he'll pull hard down low and should be able to keep the gt off his ass for the 1/8...it'll be close in the 1/4.

[Murder after Midnight]

I'm thinking of getting 4.10 gear's and a nice tune(all msd stuff)
before the race, how big of a difference will that make, also his car has about a 130k on it, mine has about 95k both car's are in really good shape however.

[lee1rbc]

4.10s could be the best bang for the buck on your mustang. As much as half a second in the 1/4 and 4 to 5 miles an hour gained through the traps. The GM auto has a very quick first but a horrible second 1.64 to 1, meaning when he shifts from 1st (5800 rpm) to 2nd he will drop to about 3000 rpm, while your Mustang will drop to about 3700 rpm. That is why F body A4s can run a good 1/4 mile time but a weak mph in the traps. If it was me, after the gears I would focus on the suspension, Mustangs are notorious for not hooking up after gears or added horses (excuse me ponies.)

[Murder after Midnight]

^Thanks for the info any other tips?

[lee1rbc]

Change your stock 225-55-16 to 245-50-16 on the rear and install
Maximum Motorsports Rear Lower Control Arms (79-98). Now the T/A will have no advantages on the take off.

[Marc87GN]

My cousin want's to race, he has a 91TA with a 305 with flowmaster exhaust, I have a 98 mustang GT with MAC exhaust and K&N intake, Both cars are auto's, it's just for fun but who do you think will win.
BTW I know,I know slowest race ever lol

I just want to correct a few things and hopfully help you since I have a little backgraound in this area. I owned a 99 GT auto for 5 years and 2 of those years it had a T-76 under the hood and ran low11s/high 10s. The auto you have is the 4R70W with updated one way roller or mechanical diode which is not in the 96-97. It is quite stout and has much better gear ratios, than the AOD or AOD-E, with 2.84 1st & 1.55 2nd. With 3.73 gears, Jerry valvebody modifications, trans cooler & PI Stallion 2800 stall converter, you can knock over .7 off of your time. This is the most comprehensive Ford transmission information you are going to find. The person that wrote it was a Ford engineer that helped design the trans and programming for it.

http://www.tccoa.com/articles/tranny/index.html#
Read the first one and jump down to Chapter 18. I did those mods and my trans lived through a 10 second pass and probably 100 mid/high 11 second passes @ 118-120 mph before I lost O/D.

[Murder after Midnight]

I just want to correct a few things and hopfully help you since I have a little backgraound in this area. I owned a 99 GT auto for 5 years and 2 of those years it had a T-76 under the hood and ran low11s/high 10s. The auto you have is the 4R70W with updated one way roller or mechanical diode which is not in the 96-97. It is quite stout and has much better gear ratios, than the AOD or AOD-E, with 2.84 1st & 1.55 2nd. With 3.73 gears, Jerry valvebody modifications, trans cooler & PI Stallion 2800 stall converter, you can knock over .7 off of your time. This is the most comprehensive Ford transmission information you are going to find. The person that wrote it was a Ford engineer that helped design the trans and programming for it.

http://www.tccoa.com/articles/tranny/index.html#
Read the first one and jump down to Chapter 18. I did those mods and my trans lived through a 10 second pass and probably 100 mid/high 11 second passes @ 118-120 mph before I lost O/D.


Damn Thanks for the info man, I think I'm going to do that "J mod"

[Murder after Midnight]

I'm picturing a race like this:

http://slacker.com/things/race.php


That's a cheap shot come on man your better than that

[john]

That's a cheap shot come on man your better than that


It's a great read though. Still makes me laugh.

Did your race ever take place?