I don't hear many people talking about racing with a LB9, but rather L98 or LO3. Anyway, my question is what kind of results are people getting from their stock LB9? I have a 5-speed and my stock car can pull a 15.26 with some wheel spin (I have yet to check out the rear-end ratio)

Also, my other question was that if I could control that fatty spinning(3.73 w/ POSI?)pulley set, new cam, full exhaust, K&N, larger TB, Alum. Shaft, you think I could be running 14s? (Also, I have no A/C, so that frees up some horsies) If not with 14s with this equipment, maybe also ported runners/manifold? Thanks in advance!

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1987 Camaro IROC-Z/Z28
305 TPI - 5-speed
Full Competition Kenwood System
Duff Man says, "Oh Yea!"

[This message has been edited by DuffMan (edited September 11, 2001).]

 

Oh yeah that is low 14 second material escpecially if you are doing 15.2 now..... i ran a 14.95 stock in my 88 iroc T5 TPI LB9 with almost no wheel spin (gotta love $160 Dayton 255 ZR's!!!)

 

Yeah A LOT OF LO3 owners are talking a lot of smack for running low 16 high 15 times! Thats not very good!

 

What kind of tires are you running? If you have cheap ones on there now then forget about traction. You car is DEFINETLY capable of more than what it is doing now...I ran a 15.0 @ 91.5 mph in a stock auto. With a set of headers, exhaust, and maybe some intake mods you should pull mid to low 14's easy. I would think given the right day and driver(no offense) you probably could do it now. If you really want to build your LB9, get a set of those World torquer 305 heads. Change out the heads, cam and get a custom chip and you'll be smacking 350 butt all day long. Keep in mind that any traction problems you are having now will only get worse with more power...so you might want to get that straightened out first.
Peace

 

Dude, I'm not talking smack about running high 15s. L03s aren't the slowest things in the world. Some are, but in crap tune they can run high 16s to even 17s. But my car, when it was tuned up with 59,000 miles on the clock, ran a 15.7. NJSpeeder's car ran a 15.8 stock. Like I said, L03s aren't the slowest things in the world, it just depends on what car you have it in.

Some 1991-1992 LB9 Autos have the peanut cam, and I've even seen a few run 16s when they were NOT IN TUNE. One had a tranny cooler broken, needed new wheel bearings, and a bent rim. 15.7 to 16.5 is a L03's region. 14.6 to 15.4 are usually what I hear LB9s run.

-ws6formula-

 

14.6? Better make that 14.4, if I get a 2.0 60ft I should have 14.1 @ 96mph Hopefully this new AFPR gets it done and drops me a tenth for a 14.0 @ 97mph. My goal is 14.1 @ 97mph with my DRs.

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1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft (w/o headers and catback)

14.426 @ 96.19mph w/2.167 60ft(w/headers and catback)

Also newly modded w/o track times:

Holley AFPR, Underdrive Pulleys, KYB Shocks and Struts, Crane Ignition

 

Were talking stock Iroc-Zee..........

 

I do *beleive* I have POSI, but like I said, I'm not sure of my rear-end ratio. I was prolly gonna go with 3.73sm but my question is can I still use the stock POSI with new gears? Thanks in advance guys!

Also (adding this one now) what about the MAF? Will I need to screw around with that if I rig up a new intake and get a new TB? How about new heads, cam, runners? Thanks!

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1987 Camaro IROC-Z/Z28
305 TPI - 5-speed
Full Competition Kenwood System
Duff Man says, "Oh Yea!"

[This message has been edited by DuffMan (edited September 12, 2001).]

 

You shouldnt have to do anything to your MAF sensor at all. If you want you can remove the screens, but I would think about it because they are very pricey if you mess it up. Your intake should also be fine with a little porting if you want to get serious. I would first worry about the exhaust. You pretty much need headers in order to make any real power. And like I said a set of World Heads and a cam would make the engine run much better. Im guessing your gears are 3.42 because I think that is what was standard with the T5...but not sure. Check out the equations at the main site to get an estimate of what they are.

 

Dufffffff wassup
this is TTA aka 3.8TransAM aka Jeremy
how are u long time no see
come visit me at the nw in/south chicago suburb board i started lemme know

hit chat and we can talk mods too if u lke
later
jeremy

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LOOKING FOR FELLOW F-BODY ENTHUSIASTS TO START THIRDGEN CLUB IN NW IN AND FAR SOUTH CHICAGO SUBURBS , DROP ME A LINE IF INTERESTED OR POST ON THE MIDWEST BOARD

1989 Turbo Trans AM
100k and counting it breaks as fast as i wrench:-)
1991 Formula 350
daily beater with 45k
SLP catback
flowbooster
runners on order
MSD6
cold air kit
soon to be vortec headed,vortec intake, headers and cam etc
ASE Technician
Jaguar Certified Technician

Chat Mod @ thirdgen.org
Moderator NW IN/south chicago board


"If it aint broke make it faster"

 

Your absolutly right that you shouldent screw with the MAF sensor, you could mess up your computer, but cutting the screen out wouldent be helping anything, you wont gain any sort of gain by doing that and remember it was put there for a reason.


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87' Camaro Z28
305 TPI
Stage 2 hypertech chip
Custom ram air w/K&N's
air foil
shift kit
aluminum driveshaft
posi
VST gas ryder gas shocks
3" flowmasters
custom muffler

 

btw if you want to do something with your air intake get an air foil.

 

haha, I don't think I know you, but ok - I live in southern california, so that may be a bit of a drive :-)

So anyway guys, what order, or combinations of items, do you think these mods should be done in? I am pretty set already on new rear-end gears and maybe a new POSI unit, depending on what I see when I pull it apart :P (Not to mention a headliner, which I am already without)

Thanks in advance!

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1987 Camaro IROC-Z/Z28
305 TPI - 5-speed
Full Competition Kenwood System
Duff Man says, "Oh Yea!"

 

I'm running 14.7@96mph with my 87 LB9 IROC with 2.73 rear gears, no cat and no posi.

Low 13s comming in 2 weeks though

RMK

 

My car stock ran 14.4 @ 96mph. BONE STOCK, no mods, check my signature again, thanks.

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1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft (w/o headers and catback)

14.426 @ 96.19mph w/2.167 60ft(w/headers and catback)

Also newly modded w/o track times:

Holley AFPR, Underdrive Pulleys, KYB Shocks and Struts, Crane Ignition