Fast355

iTrader: (2)

LOL plenty of TPI C4 Vettes ran well into the 13s in stock form. I saw a Stock LT4 car run 12.90s @ 104 and its only 30 hp on the LT1. The ZR1 ran mid 12s STOCK. Even a LT1 Auto could run lower 13s if it didn't have the 2.59 gear ratio.

Fast355

iTrader: (2)

I still think its funny that you throw the heavier vette out there. Woopty freaking doooo the Vette has 20 hp on paper and 45 ft/bs on paper the LB9 manual cars were rated 230/300 and made quite a bit more in reality. The 1LE cars were lighter and better geared than the 6 speed vette. You are only strengthening my argument for a 13.9 bone stock 1LE G92 TPI 305 car. I would love to see the 60' on that 14.1 run because he had the trap speed to run low 13s and high 12s with a decent launch on a sticky track. If I had a TPI or LT1 car it would have atleast a TB coolant bypass, 170°F thermostat, lowered temp fan switch, drop the rear tire pressure, pump the fronts up, TPI car would have tweaked timing and TB airfoil, both would have an adjustable fuel pressure regulator and be "stock"

budfreak1

iTrader: (7)

ninetyone

iTrader: (2)

Why is every car under rated to you? A car runs what it runs. If consistent testing proves 14's , why do you keep insisting they are supposed to be quicker. On the street a c4 vette would still beat a Trans am L98. They are much, much lighter and have better heads,and tuning.The gears don't really make a big difference either. If anything a 259 gear accomanied to a stock tpi intake would stay in the powerband longer cause of the gearing. Now, when u start doing mods like bigger runners,etc, then the shorter 342 gearing may help.

ninetyone

iTrader: (2)

I wouldn't. I would supercharge it. TB bypass is useless,airfoil is useless,Timing should be done in the tuning(chip).More is not always better either.In fact, the majority of getting a tpi tuned correctly is in the fuel mapping. How about Headers,exhaust, CAI, roller rockers, possibly a Holley stealth Ram or some type of intake that allows the motor to breathe and rev up to at least 6500 rpm, and then some really extensive tuning. Then you might be closer to the high 13's. That is all you need.

ninetyone

iTrader: (2)

Ok, i guess GM is going to make their top car the Corvette run the same track times as their Firebird, Trans ams. Even tho Trans am is heavier and the engine puts out less power.

PhoenixFirebird

iTrader: (2)

I love the huge claims that driver skill is a big deal, but I haven't seen anyone put anything up about things a driver can do in a stock auto to get better 60' times.

Fast, I disagree. 1, as I mentioned before, that's horribly inconsistent. 2, if you're at half throttle until the 30', how are you going to have a better 60' than me stomping it to WOT off the line? I've already stated that at my launch rpm, I don't spin the tires off the line. Please, enlighten me. Come to Ohio, take my car down Summit Motorsports Park, and run at half throttle until 30'. You won't come close to my 2.02 60' that way. I said before, I leave at 1500 rpm. 1600 rpm, I push through the beams and spin off the line, 1700 I spin the tires at the line before the tree comes down. Do you really think that by leaving at 1600 rpm and feathering the throttle you're going to run a better 60' than me leaving at 1500 rpm and hammering it off the line? I'd love to see it.

Driver skill in an auto may come into play in modified cars, but it's a pretty minor role in stock automatic cars. Nobody has given a reason otherwise.

PhoenixFirebird

iTrader: (2)

How much did an Iroc weigh? I thought I read a 350 Formula was the fastest, just due to less weight. My Formula is about 3400-3500.

budfreak1

iTrader: (7)

Did you have it weighed? Was that with you in it? I heard they were around 3300 and the GTA is around 3450 without driver. Haven't gotten to weigh mine.

PhoenixFirebird

iTrader: (2)

3500 race weight, so roughly 3370 empty as of now. I thought GTA's were more towards 3600-3700?

ninetyone

iTrader: (2)

nope the 1990 Iroc 350 was the quickest.Not sure of their weight,but I know that my 1991 Firebird with a 350 tpi (was born a TBI car) Weighed in at 3401 without a driver. GTA's are supposed to be the heaviest. I have heard of them weighing in excess of 3650

ninetyone

iTrader: (2)

My brother had a 1LE Formula with the 305 5 speed and it ran mid 14's stock.

budfreak1

iTrader: (7)

Like I said, never weighed it, so all I know on that one is what I read. I will have it done sometime, when I find a place to do it.

ninetyone

iTrader: (2)

http://www.prophetsofmadness.com/iro...magarticle.htm

Interesting article from hotrod magazine. Looks like they got a 14.7 in the 1/4 from the Iroc 350 TPI

ninetyone

iTrader: (2)

Iroc 350 weighed in at 3456lbs

Fast355

iTrader: (2)

Thats only part of the puzzle? Would like to see the WHOLE timeslip. What was the 60' time? What was the DA? It could have been 105*F in Arizona for all you know.

Fast355

iTrader: (2)

I'd put money on being able to launch your car quicker than a simple brake stall. If you leave from idle you flash the converter and shock the suspension as you transfer weight to it. You end up putting more torque the tires when you flash the converter which results in spin if the driver doesn't compensate with less than WOT.

ninetyone

iTrader: (2)

idk man, I have also seen another magazine that got a 14.4 from a 90 Iroc 350 too. The speed density cars (1990-92) are supposed to be the quickest.

fasteddi

iTrader: (2)

TPI 350 SD cars are the quickest IIRC. Mid to low 14's with the 350. Also IIRC the z-28 from 1990-1992 were in the bracket because of weight. I would bet on a great day and good DA a good driver could mabey hit the 13.9x's with a stock Tpi 350 speed density car(mainly the camaro z28 over formulas and GTA's)

ninetyone

iTrader: (2)

the z28 wasn't offered in a 350

Fast355

iTrader: (2)

The LB9/5sp/3.45 geared G92 cars with dual cats were every bit as quick if not quicker than the L98/Auto/3.23 geared cars.

You guys make me laugh on all your magazine comments, something as simple as TIRES can make a huge difference.

These trucks (mine is the black one) were very even with mods and track times in warm weather. When the weather dropped into the 40s, my harder compound tires KILLED my traction and resulted in me running 8.90s on a 2.10s 60' rather than my typical 8.50-8.60 on a 1.9s 60'. You can see how much I lose off the line from minimal tire spin. We both trapped over 80 mph in the 1/8. Sorry for the N/T on my lane, but it was 8.94 @ 80.80 on a 2.12s 60'.

budfreak1

iTrader: (7)

Whaaaat?? They didn't make an IROC in 91-92, so what do you think they put them in?

Street Lethal

iTrader: (16)

1990 was the last year for the IROC...

budfreak1

iTrader: (7)

PROVE IT.

budfreak1

iTrader: (7)

Yep, your right, but it was only a half year of production. I'll correct my post.

ninetyone

iTrader: (2)

yep u are right, but they didn't have them available with the 350 5 speed combo. IIRC, there was a special edition (very limited) in 92' tho.

ninetyone

iTrader: (2)

You know they made the G92 and the 1LE package for 350 auto's ,don't you?

ninetyone

iTrader: (2)

Tires making a huge difference? A car runs what it runs, it should do it with any driver. Were not getting that technical here.

budfreak1

iTrader: (7)

Well yeah, but that is comon knowledge. No 350 ever came with a manual in a 3rd gen, except the Firehawk.

fasteddi

iTrader: (2)

Thank you as you just got me to laugh so hard.... That made my day.

ninetyone

iTrader: (2)

You are trying to say a 1LE Firebird weighs less than the Corvette which has aluminum heads, and fiberglass body parts? Trust me the Vette is still lighter. The vette weighs in at about 3200 lbs and some change.

ninetyone

iTrader: (2)

My comment was directed to the "new members" out there that may be listening to some of these un true statement from fast355

ninetyone

iTrader: (2)

Haha, it says your only 27, how old were you when your car was made? like 5? Do u even remember the 80's/mid 90's? You have no idea what things were like back then.

ninetyone

iTrader: (2)

The reason i posted that is because , obviously there is a lot of mis-information being thrown around on here by several inexperienced members. My comment is directed toward the new comer.

budfreak1

iTrader: (7)

Gotchya.

Don't pick on Mark man, he is on our side of trying to weed out the stupidity. I'm sure he didn't mean anything vicious enough for you to try to tear him apart. I'm only 31 (9 when my car was built), but I was a gearhead and a half from about 11 years old on, and I was known as one of the only reliable sources for car stuff in high school, because it was all I cared about and I memorized everything I read or did. Even teachers came to me about cars lol.

Fast355

iTrader: (2)

Sorry just reading through here and laughing at the stupidity on this board!! Car runs what it runs but variables between cars make for big changes. Weather alone gave me a huge boost on my Titan this afternoon. Sun warmed well preaped track in cool 55°F weather with a high barometric pressure gave the ~600 ft elevation track a +166 DA. My big old Titan improved from its previous best of 14.22 @ 95.64 on a 2.05s 60' in 2100 DA to a 13.987 @ 96.20 on a 2.00s 60' time. Guess weather changes are minute differences afterall!

budfreak1

iTrader: (7)

Dude, just go race your garbage that has no business at a track without a trailer behind it, and STFU. Nobody is listening, nobody believes you, and nobody cares.

ninetyone

iTrader: (2)

What? Now your talking about a truck that can touch the 14's? A big heavy Nissan Titan truck? Come on man. It's a truck.LOL

Fast355

iTrader: (2)

Its close to being quicker than your POS and its mostly stock, I can still pull my boat to the lake while I am at it. I really haven't even started my boltons with it. I have trutrac, headers, and cams already for it.

Fast355

iTrader: (2)

RAN 13.98 THIS AFTERNOON AND I HAVE THE TIMESLIP.

It went 14.7 with less than 500 miles on it bone stock.

budfreak1

iTrader: (7)

POS? Sounds like jealousy to me, truck boy. Your just pissed cuz you drive crap, and don't even have a real car to take to the track. Yet, I have more knowledge than you and one of the cleanest examples of an unrestored 91-92 GTA you'll ever see. Don't be a hater you ****in liar. And close only counts in horseshoes and handgrenades, so you lose either way with your slow ***.

Gee, earlier you had a 13.5 Hemi, now you have a 13.9 Titan. Dude, you are a BULLSH1TTER! Timeslip or no timeslip, I would never listen to one damn word out of your mouth.

budfreak1

iTrader: (7)

WHere's the proof of the 13.4 LT1 auto, or the stock LB9 13.9 second car??? Oh, none? Hhmmmmmmm.

Fast355

iTrader: (2)

I am not jealous having had two fully loaded NICE FAST trucks.

89rs454

There's plenty of proof you just refuse to believe it. And rightfully so, because no average Joe could pull off those times in a lifetime. However in the right conditions with the right driver you can bet your as* them boys mean business.

ninetyone

iTrader: (2)

You think those kind of bolt ons are going to make a difference? headers,and a cam don't make all that much of a difference man.

budfreak1

iTrader: (7)

Well you should be. I can run low 13's and get 20+ MPG, how about your sweet, fully loaded trucks?

budfreak1

iTrader: (7)

I have seen no timeslip, and no video that prove a damn thing.
Why don't you get out there, and show us a 13.4 run?

89rs454

I have posted video after video still not good enough. And trust me i will show that l98 it belongs in a truck pulling stumps.Oh wait, it's been done to many times.

GenX'Motorsport

Holy Cr*p! Theres ALOT of bad info in this thread. "No Z28 with a 350", Stock Fbodys running quicker than vettes of the same drivetrain, "Limited edition 92 iroc" LOL, Cams are a bolt on?? That dont make a big diff in performance??

Please

budfreak1

iTrader: (7)

And none of them proved anything. Hell, the first one you posted didn't even show the clock, it just said the time in the description lol. Sure, I'll believe that.
So show me something fanboy............I'm waiting.