LT1drifter

I just bought a 94 TA A4, has a new NAPA motor in it, with around 3K miles on it. I have been reading and see a lot of people with stock setups having traction issues, even when hitting second. Mine won't even sping the tires stomping on it at a stop sign, or chirp in second. Does this sound normal? Anything I should maybe check? At the moment my 2.0 turbo 240sx making 200whp feels faster, and I hope it shouldn't.

Thanks for the help.

Puck

iTrader: (17)

Not normal at all. If its truely a 5.7 z28 LT1 replacement and not the "baby" lt1 it should definetly put more down. Must be ignition related, when I first got my Z the previous owner did a tuneup and had a plug wire that leaned against one of the pulleys and cut it, and was sluggish just like you are describing.

I would do an ohms check on all the wires and replace the plugs. Even bone stock it should shred the tires from a standstill.

97blkz

iTrader: (1)

You got junk, crate motors suck *****!

Ironxcross

iTrader: (8)

i chirp third with shitty tires. and my motor has 110k on it. that crate motor should be doing alot better man.

LT1drifter

Thats what I was thinking. What do you mean by baby LT1? I'll check the igniton system this week.

LT1drifter

Whats the thoughts on the B&M ShiftPlus that plug and play shift module? Think I should just get a shift kit? Has 180K on it, but still shifts good.

transambandit

iTrader: (6)

might be running on 7 cylinders meaning a bad plug and/or wire, but then youd be getting a misfire. You might also have a bad injector, take a stethescope and listen for a tick inside the injector and you have a bad injector. Might want to get a fuel pressure gauge and check fuel pressure. Bad filter maybe

Grn4fbody

iTrader: (2)

265 CI LT1 out of the B body

http://www.automotiverebuilder.com/ar/ar99928.htm Read that

phrozen755

iTrader: (5)

I was about to post that...darn!

Ralls

iTrader: (32)

Based on what you said, that sounds normal to me. I couldn't spin at all with stock 2.73 gears. Maybe that's what you have.

nomoneyz

iTrader: (15)

x2 here. I cant spin at all with my 2.73s unless I power brake it.

9730thanvz28

iTrader: (1)

ya if its got 2.73 gears that would explain alot. but look at this way, good gas milage. haha. just get some gears *after makin sure theres nothing wrong with the engine of course* then it will light up like the 4th of july!

93 blackformy

iTrader: (1)

From ur sig u have a M6...he's an A4.

I've heard alot of people that couldn't spin the tires from a stop...IDK if it was the 2.73's or what, but when they powerbrake it it'll spin for days....But mines has 2.73's and even stock if I punched it from a stop it'll light up the tires, with good tires on it so idk.....I say take to the track

LT1drifter

I am gonna take it up to the dyno this week on pay day. I can power brake the hell out of it, and it will lay tire for at least 20 yards easily just keeping on the gas. I checked the receipt and part number, and it says it's a 350 CI LT1 from a Pontiac Firebird. How can I tell if I have a 2.73 rear end? Going over the receipt for the install on the motor, only thing changed out was the plugs, still 180K on the alternator which is only giving about 12 volts running, the power steering pump, the water pump, opti-spark, and probably the wires too. I guess I will be making a trip to the Summit store out here and buying up some parts this week. The tranny feels good doesn't feel like it slips or anything, even though it has 180K, is the B&M shiftplus any good for any auto? Also the Opti spark, I can get it through my work, Autozone for $120 after my discount, come with the opti and a rotor, anyone ever used one of these?

Thanks for the help guys.

That_guy

iTrader: (1)

i chirp lol with 260'XXX miles A4 (matter of fact i just did at autozone) And when people say baby lt1 they mean the 4.8 or 4.3(correct me if im wrong) litter lt1 the one thats in the bbodys.

Ralls

iTrader: (32)

I wouldn't get an autozone optispark. That is the one thing you shouldn't cheap out on. Everytime I see someone getting an autozone opti, it breaks a month or two down the road.
To see if you have 2.73s.. should be 2,000 rpm at 80mph. If it's way above 2,000, then you have 3.23s. A more accurate way would be pulling the rear end cover off, but it's a pain.

Grn4fbody

iTrader: (2)

Totaly agree here, some parts ya get what ya pay for, Get a GM one or ive heard really good things about the MSD one, PM Skinnies on here he just did his opti with the new MSD Cap/Rotor and he said he liked it.

LT1drifter

I am sure I have the 2.73 then. Cruising on the hignway around 80 I think it's under or right at 2K. What rear end should I go with? I still want decent gas mileage with better acceleration?

93 blackformy

iTrader: (1)

If you have 2.73's you'll have the RPO code GU2 in the glove box on the code sheet!

GU5 for 3.23's

Ralls

iTrader: (32)

Get either 3.42s or 3.73s..and some might say 4.10s. Don't get 3.23s because that technically wouldn't be an upgrade. Some aftermarket gears allow you to use the same 2-series carrier you have. I would get a 3-series carrier and your choice of gears. I went from 2.73s to 3.42s and still like it. Go to http://www.f-body.org/gears/ to see the differences between 3.42s and 3.73s.. then decide which you prefer.