I own a 89 formula 350 60000 miles runs strong has k&n and air foil nothing else my buddy at work has 98 z28 114000 miles six speed we were messing around after work one day and my car held its own from a 20 punch we were dead even up to about 80 then had to let off what will it take too to pull on him no juice was looking towards ud pulleys and a chip possible a caI what you guys think

 

Well, he has about 100+ horsepower on you and better gearing, so you would need A LOT. I would do full-exhaust, stall and stickies and go from a dig to about 100MPH.

 

100 hp they only make 295 or 305 and my ca should be aroun 230 no proof just what i read

 

Someone can correct me if im wrong, but I believe LS1 cars like that were underrated from the factory.

 

ok cool wasn't sure about exact numbers

 

ALL LS1s make roughly 350HP...don't believe the marketing.

 

Yep. The same basic engine was used across the board from "lowly" Z28s and Formulas to the Corvette. The later engines with the LS6 intake (but slightly smaller "truck" cam) are generally stronger, but most M6s will make about 280-300rwhp stock and most A4s 270-290rwhp stock. The rest was all marketing to keep the prices justified.

 

thanks for the info

 

No prob... My previous 2000 Z28 made 300rwhp with just an air-lid and cat-back and was barely broken in (under 3K miles). My current C5Z made 355rwhp bone-stock. The LS engines are no slouch and hold their own even 14 years after their introduction.

 

You can beat a stock LS1 with a bolt on L98...I did it with both my GTA and Formula I had...that was from a dig/slow roll though..you have to get in the motor or nitrous/forced induction to beat one on the highway.

 

cool what bolt on's did you have a just did a k&n, airfoil and just ordered the power and amp ud pulley set.

 

160 thermostat
bypassed throttle body coolant
MSD coil, cap&rotor
ac rapid fire plugs
8 degrees timing
ported plenum
open k&N
slp airfoil
removed smog pump
off road y pipe
hooker aerochamber muffler

I miss all that brute torque my Formy had...my modded LS6 WS6 lacks.

 

in reply to the last entry, your car probably makes no more usable power now than it did before. No way you keep up with any ls1 camaro/firebird

 

I wouldn't worry about trying to beat a bone stock LS1...there really aren't any bone stock LS1's that you'll run into in a race. All the stock ones are stock because that's how the owners are, they keep them stock, only drive them so often, don't mod them, etc. The owners that will race their car never keep them stock.

 

It has nothing to do with your modded LS6 lacking brute torque, and everything to do with the traction control issue that cannot be tuned out in the stock PCM. We can trick the PCM by going in and removing spark authority, or simply by installing an SLP reverser, and that will do the trick. If you don't want to go that route, a simple cam change w/the right amount of stall will have that LS6's torque coming out of your ears....

 

I don't have traction control or a stock pcm

 

Are you saying my Formula didn't make any more power with those mods over stock because they sure did. Maybe the tuneup helped a lot but it was a whole different car than when I got it bone stock with 90k on it.

And I used to routinely beat my friends stock 98 T/A at the stoplights...and I know how stock that car was because I later bought it from him.

 

What exactly are you running for your 02 correction then, BS3? MSII? Fast XFI? Holley EFI? Whatever it is, let's see some pics of your setup, and post a datalog if you can....

 

I have a stock LS6 crate engine with bolt ons PCMforless tune and I just put on pacesetter long tubes. I got 3.23 gears & the car is all top end. I know I need to send my PCM back to them I plan on putting a cam & converter in it so I think I'm going to stick to a mail order tune until then & then get a dynotune

 

You beat LS1s with this combo? At the track? Any time-slips? Just asking because I currently have a L98, LS1 and LS6 and just don't see it. Not being an ***/no offense...just not in my experience.

 

No not the track...stoplight to stoplight. I would always pull out and have about a car up to about 80. The car was a 98 Trans Am with 2.73's. I would also beat other LS1's on the street with my 90 5.7 GTA with the SLP package and converter. They would beat me on the highway though.

 

i used too burn Ls1`s all day with my 91 formula with just 4.10 gears even a few c6 vettes with six speeds til i ran outa rpms, 2600 stall converter, Lt4 hotcam with stock rockers, and tpi intake with 58mm tb, only shorty headers and diddnt even have it tunned good for the setup. Never ran one at the track but street light too street light 0 too 120 I would get em unless the had major mods like cam, heads, headers, and a full tune.

 

Yeah man..I don't know whats so hard to believe.. with light mods an L98 F-body or Vette can embarrass most "fast" cars on the street from a dig. My 90GTA, 91 Formy 350, 85,87 and 90 Vette all had boltons only and would beat C5's and F-bodies...they are stoplight warriors.

I freely admit it was a whole different story from a 60 roll on the highway though.

 

Look, I'm not trying to be "that guy"...anything can happen on the street. However, after owning/currently own multiple examples of L98s, LS1s and even a LS6, I'm kind of surprised. I'm at Atco all the time (including tonight) as well as Great Lakes Dragaway (The Grove) and VMP, so I see all these combos on the track as well. I also have about 40 dyno-sheets of my own various combos from stock to 650rwhp.

I love the L98s and my current 1991 Formula pulls like a train with just intake, full-exhaust, light tranny mods and a tune...just being a realist.

 

Then what makes you think it wouldn't beat a stock LS1 with 2.73's on the street? My Formula was a beast off the line..don't know if it had a mild converter but I know the tranny was redone with a shift kit. I had both cars at the same time for a while and yes the T/A had 200k mi on it when I bought it and needed a tune up real bad as soon as I got it(ran like it had 20k after)

My Formula felt like it had a 50 cubes bigger engine down low than my T/A and my T/A felt like it had 50 cubes bigger on the highway than my Formula.

 

Well, my Formy won't beat my airlid/Hypertech/Blowmaster 1998 Trans Am (both A4 and 3.23) in any race past 60-70MPH and up to that point is all about who gets a better launch. Back 1/2 of the 1/4 mile or 70MPH+ and the Formula is in trouble. The L98s FEEL awesome down low, but aren't really making the power in an optimal RPM range.

 

Well in saying that it looks like my Trans Am was slower than yours and my Formula was faster than yours.

 

Bingo. Not to mention, it is more of a seat of the pants feel when it comes to the L98's that owners seem to mistake all of the time. They simply can't breath past 4500-RPM, and a stall only hurts them because they then lose whatever rate of acceleration they had before the stall to begin with. I've owned so many third and fourth gen's, and the only L98 that ever hung with my '98 Trans Am (just a lid and converter mind you), was my old '90 Corvette that had a lot more work done to it, and even then it could only hang with it down low, but then got walked above 70-mph....

By the way, what are you running at Atco tonight....?

 

My 90 5.7 GTA had slp runners, ported plenum, slp headers and 3 inch exhaust so it definitely breathed better than stock and I definitely felt a difference with Ab slp converter

 

Heh. I'll gladly race you in either car, as long as it's all in good fun. I actually took the T/A to Atco Friday nite...

Thanks for being a good sport...I'm certainly not trying to bust yer ballz.

 

Heh. I had a 1990 Vette 'vert with a mild 383 in it...complete tire-shredder.

I took my red T/A to the track, but got there late...dunno if you saw me. It was a Ford-fest as usual. I'll prolly take my Z06 next time...