well the LB9 is officially slow becuase the non PI 4.6 beat the 89 Iroc-z 305 tpi tonight but the 46 has a new rear with 373 gears and a 5 speed and a full exhaust. Does this mean the 89 runs a low 15 he barley beat me. And i think hes in the 15s maybe too or high 14's. LB9's are junk fellow thirdgen owners, im very dissapointed!!!!!!!

 

i smoke bolt on mustangs all the time..

my 305 runs 14.4@96 with just a full exhaust

 

What year 4.6?

 

its a 95 i would say and it dips out and i have a full exuast cam and a bunch of stuff its just junk cant beat the pony trash.

 

If its a 95 it was the last year of the 5.0L.

 

Tim it was a 97

 

It sounds like your car is in the mid 15's and his is in the low 15's. You just need a few mods. It is pretty easy to get a mid 14 second car out of any 305 3rd gen.

 

Ya the 97 GT is a high 14 second car at best. Low 15's is normal.

 

Ok the 97 mustang has 3.73 gears, a catback, and an offroad x or h pipe. That is all.

The Iroc-z is a LB9 with full 3 inch exhaust and maybe a cam but i dont think if it had a cam, it would run on the stock tune. It also has all of the free mods.

The 4.6 had us by a good few car lenghts and he launched in second gear.

 

you just now figured that out?

 

If he really launched in 2nd gear that is SAD...

Here is a comparison, my dad tried this once in his NMRA Factory Stock car on a 225 street radial. He launched in 2nd (with 4.10s and a car set up for the track) and ran a 13.5. Next pass launching in first he went 12.8 letting off! Needless to say that 4.6 is a 16 second car or so launching in 2nd... Hes probably lying to you about that!

 

I was riding in the Stang during one of the races and he did launch in second to prevent tire spin.

 

I raced a '96-'98 4.6 Stang with my LO3 and I beat him. The 4.6 I raced was a stock automatic, however. Tough loss for your IROC.

 

Well from my experiences with a MUCH faster car that knocks a good .6-.8 off what the car can run, and thats with steeper gears and a car that revs easier!

His 305 might need a tune up if thats the case!

 

The problem is that the 305 runs really good. I have no clue what happened because tire spin aint too much out an issue after your out of the hole. It is rediculous because launching in first in the mustang with some very sticky low profile tires, it will just blow the tires right off the car. I dont seem to get why a non-p.i. 4.6 can even do anything im describing.

 

yup well im selling all my thirdgens lol to buy more thirdgens maybe the next batch will be faster.

 

Believe me I know all about driving Mustangs with gears and bad tires. My car I cant floor it even in second gear (at the track I can) but I still would NEVER launch in second! First gear is very short in our cars, but not worth starting in 2nd over!

 

lol

Don't do that. Take your car to a track to get an idea of what it really runs, and go from there. An LB9/5 Speed car has a lot of potential, and can go 13s without too much $$$ or effort. But before you start tuning that thing better, you need an idea of what it really runs, so take it to a track.

 

Thank you.


But umm yeah, the LB9 th700r4 car is slow as ****.. you have bad gearing, a wide spread transmission and 190hp

 

The lb9 isn't as bad as some people say,I have taken out a few 4.6's.I even beat an l98 iroc a couple weeks ago and he atleast has exhaust.A lot of it depends on the tune,plugs/wires,tps setting,timing,etc...I am sure mine is a 14 sec. lb9.It sounds to me like there may be more mods onthe mustang than you were lead to believe.

 

I looked over the Mustang pretty good, there is nothing he didnt say there was. What do you think that a 97 GT would run with catback, offroad H or X, and 3.73 gears?

 

14.8-15.0 if its in tune.

 

With a good driver mid 14s...

A kid I raced with a few times had a FREAK 96 or 97 GT that had exhaust, all the bolt ons (pulleys, TB, maf etc...) stock manifolds, 4.10s and weight removed, and one time went 13.3! The car was in the 13.6-13.8 range for the most part at well under 100 mph (96 maybe) on a slick!

 

Could have been a Cobra with GT badges lol. Be a good sleeper trick.

 

Oh come on guys the ol LB9 is not that bad, they just need a few bolt ons to run good. I can beat 4.6s so bad in mine that I can't count the carlengths. They think they have me in the bag when I tell them I have a 305, then they get one heck of a suprise.

 

I dont know those 05's are pretty tough.

 

Oh believe me, I have been under the hood of the car, it was a GT!

 

I dont think the LB9 is that bad.....well it could be alot better but it gets me by until i can afford a 03/04 Cobra atleast

 

all i know is that if i get another thirdgen, it would be a lb9 5speed.

 

Well now that I think of it, the LB9 that we raced in has posi in it, so this means that it has what rear end and gears?

 

Go to the tech board, they got everything.

 

3.23s I would think...

I have an '87 LB9 with exhaust, cai, tuning and you're normal tune up parts. I've raced countless mustangs, imports and even a few L98 GTAs and I've won and lost a few. Against an L98 GTA, I beat him by a few cars. I suspect his car was running really badly but a win none the less. I raced a late 80s GT/5spd from a light once. He had exhaust, all I could really make out besides his cobra rims. We were neck and neck off the line as we both spun a little. But once we reached the end of the intersection I was pulling away from him pretty easily. I have an auto as well with 3.23 posi out back. These motors have potential yes, but I still believe it's not worth building when a 350 can take the same parts and make more power. I can understand however, if you are on a budget as I was back then. My new 355 should handle these cars with ease

 

well we opened up the throttle body of the LB9 and there was oil everywhere so im sure this is unhealthy for the car, wouldnt you say? Plus my filters are clogged to korea and back and i am thinking about getting some k&n's and doing a complete tune up and maybe it will break in to the low 15's or high 14's right?

 

Get it tuned and go find out for yourself.

 

Friends 98 Mustang GT, 4.6 with a PI Intake Manifold on NPI heads, dual 2in to Flowmaster 40's, CAI, stock 3.08 gears, 14.3's time and time again with NO tune; .53 jet spraying dry through the MAF, best of 13.5. You would be under that hood forever finding that nitrous (we're sneaky ). My 350 TPI runs a 14.0 flat off spray and I have alot more wheel spin to deal with (2.3 60 foots). If your friend's taking off in second that's flat amazing or your car is in serious need of some service, this should be a close race. BTW there's no reason an LB9 should be under low 14's with the right combination of parts, don't give up on it just rethink your mods.

 

Dude, your car is dying for a tune up.

Don't be cheap!

 

i have an 84 Z and have a 4.6 i want to run but i think i have a chance...hopefully.

 

 

Well Tuned L69?

 

1MeanZ, your signature is like the greatest thing in the world. Having the numbers "305" surrounded with burnout smileys is just freakin awesome. I laugh everytime I see it.
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One with a good stock tune (and of course the 5 speed, if it's an L69) will run even with the 85 auto LB9s, which ran about 15 flat. It wouldn't neccesarily need that good of a tune.

 

None the less he can take out the 1995 4.6L..

 

Oh I'm not dissing the 305, I just love it because of how everyone around here thinks the 305 is the worst thing in the universe, and the fact that he put it in there like that is hilarious because of how bad of a reputation the 305 has. I love it.

 

wow old post

 

The oil is normal... crankcase is ventilating thats all. A tune up would help though...


<<< 3.45, 3.42... possibly 3.08 if your in California.

 

The 305's got a bad rep beacuse of the lg4 and l03 cars. No one really wants a car that stands for performance running low 16's. But those engines respond very good to mods ill give them that.

 

and the auto lb9's!

 

forgot about the 86 tpi cars with the peanut cam

 

Uhhh, yeah. I know....

 

The mustang didnt run the mod motor yet in 95, they were still the good ol' pushrod 5.0. FYI