hehe. It's not quit that easy... but for the same price as what it takes to run low 13's in an LT1 NA you'll have the GN in the mid 11's.
A stock GN/TType runs 9.0-9.15 in the 1/8. A stock LT1 A4 runs 9.3-9.5 in the same track conditions as the GN...better / worse track conditions result in some quicker/slower times for both cars.

 

i think those times are stock GNX times. stock to stock an LT1 car is pretty even with the ordinary T-Types and GN's from what i have seen. actually i've never seen a stock GN run what my stock 93 LT1 has run at the same 1/8mi track. now if you want to put tires and a convertor in each of them then it will help the GN more than the LT1, imo. 1/4 mi might be a little different though as that turbo really starts to shine on the back half of the track.

 

times in sig.
now that i have figured out a few problems with the car, both of them will be updated next time i go to the track. should pull a high 12 on motor, and if i can hook a high 11 should be possible on the bottle

by the way when my car was bone stock it ran 14.7@95, now in the same weather i am running 13.3@101 at the same track.( that 13.3@101 was with 15.1 A/F and cutting out from the start) so the 13.3 in the same weather might not be that accurate.
once i gave the car a tune up and had it running good with a CAI it was running 14.1@98.
and you had asked if we drove the car everyday, this is my DD. for now atleast.

 

Nope, there at least 3 completely stock GNs and Ttypes in my local Buick club, run 9.0-9.15 all day. I've been around GN's for over 15 years and I know their owners, they are stock. One is a very rare 2-tone Ttype and that the owner would not change anything from stock, has won several GSCA National car show events based on the stock class at the annual GSCA Nationals. Now, thats not to say there's not a ton of stock ones running around that have been negleted over the years that are running alot slower, but a well maintained and properly tuned turbo Buick will run a sound 9.0 consistantly with all factory original parts and stock boost.
Since our local track is only 1/8 mi, I haven't seen that many run 1/4.. Mine when it was stock 15 years ago ran 14.3-14.5... my TTA bone stock will run the 1/4 in 13.6 @ 101, but the 1/8 time is 8.9x because of the poor disc brakes don't hold any boost for take off...and is more aerodynamic than a Buick at the higher 1/4 speeds.

 

Thanks for all the input. My GN had a chp that upped boost to 17PSI and an Intake before it got stolen. I wish I stll had it but it would just get stolen again. My bro used to let me drive his 93 LT1 alot, with and without the supercharger. I loved it with just an SLP Intake and Flowmaster exhaust.

I never got to run the GN, he never ran the LT1 before the supercharger. With the S/C he only ran a 13.2@107 which worries me because he paid so much to buld the car up. The car sounded awesome with the Supercharger, headers, exhaust etc and I was sure it was at least a 12 second car. He made 450 at the rear wheels.

It sounds to me that his car just wasn't tuned right so I feel there is hope for me to hit 12's without an S/C.

What order should I do the mods?

I never really have been in a bone stock LT1. Closest was my bros with the intake/exhaust. Does a bone stocker still have anice rumble? Doe's the exhaust headers and intake make a big difference in performance and sound?

Thanks,
Dan

 

That sux about your GN, I read about people getting theirs stolen just leaving it for less than 5 minutes..theives in tow trucks that follow them I suppose. Read about it almost daily on www.turbobuick.com on the theft board.

For LT1 sound, yes, headers will make a big difference. I went Long Tubes, mini cats and straight thru oval muffs over the axles exiting in stock location with stock tips on my '95 TA. With stock cam, it was a tad louder than my LS1. Stock for stock, the LS1 was louder. The LT1 sounded great and was not any where near being too loud with that setup. ..but along comes the 236/242 cam and now its a monster coming down the street

 

i guess maybe your air is better down there or something. my best friend's dad bought a brand new GNX in '87 and it only ran a best of a 9.13 when it only had like 500mi on it.

 

My 93 Formula was bone stock when I bought it - still original tires and all and it did 14.5 after a little practice. The rear gears are 3.23s. The same stock engine was running 12 flats with a dry shot of NOS and other bolt ons, slp converter, 3.73 gears, exhaust dump after manifolds with factory y pipe still.

 

in your opinion what would be the best bang for the buck with bolt ons? my car is a stock 93 LT1 A4, i have a 3" cat back system that i have not installed yet. what would you suggest to be the next best mod to do?

 

The GNX should have very similar performance to the '89 TTA, lot of debates about which was faster, so I'd think a GNX should run a 8.9x or so, both run 16# boost stock, and turbo cars are very picky about the air quality.

 

2800-3200 stall converter
longtubes
in that order

 

LMFAO i deliver pizzas in my TA. its got a loud as borla exaust so loyal customers alwase know when im at their house

how much dose a good cam for a LT1 cost. and whast the HP gains on one. people alwase tell me to get a cam and that it ads a assload of HP. and thats its cheap, it just seems to good to be true

 

Best I've ever managed with my 95 A4 was a 14.2 @ 97..as listed in my sig...that was with about 107k miles last year....now it has 112k miles and is giving me ****..so a track trip hasn't been in the plans so far...Damn Opti

 

A cam, even a small one like I had made a huge difference. I was shocked at both how it sounded, and how it ran. It's not just the cam though, it's the combo. I made 330 hp at the wheels with a very inefficient converter unlocked. Most people with my mods seem to be in the 340-350 range with a quality converter. I still managed 11.70's with a stock appearance. The longblock was untouched with 104k. Off the shelf cams are around 240 while custom grinds are around 300. Installation isn't that bad with plenty of guides to help you.