I went to the track this past sunday and i ran a 16.1. does that sound right? what should a TBi 305 run in the quarter? thanks

 

That's about right. I've got an 89 Camaro (5-speed though) with a cat-back, chip, and open air and I run 15.7 at best. Normally slightly higher.

Jason

 

if thats stock, id say you ran extremely well. most of the stock L03's that i see run high 16's. I wonder if once you start modding it, if it will run better than someone else's with the same mods.

 

It is not completly stock it has an open element and no cat. i am getting my headers put on this weekend

 

My 91 Firebird 305 TBI LO3 ran a 16.18 bone stock. So youre doing good. My car now runs a 14.89. My mods are below.

Mods: K&N FILTERCHARGER, K&N X-TREME FLOW TOP PLATE, FLOWMASTER 80 SERIES MUFFLER, GUTTED CAT, EDELEBROCK TES HEADERS, HYPERTECH THERMOMASTER CHIP, 160* THERMOSTAT.

 

i run low 15's. mods in sig. and that was with a lot of sliping and a slow shifting tranny.

hth.
RS

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1992 Camaro RS
Mods:
Custom chip, 14x3 Open element w/ K&N filter, MSD 6a, MSD GM blaster Coil ,MSD 8.5 SC wires, AFPR,Fuel Pressure gauge,A/F guage, 3-Row Al rad. , 180* t-stat,Proform 1.5 roller rockers, Hooker 1 5/8 headers, 3" Catco cat, 3" Hooker Aero Chamber cat-back, "Ultimate TBI" mods, !Cat

Next

454 TB,Victor Vortec intake,Vac FPR,LT1 cam,Roller timing set,"glass" hood
65# inj,new chip

Best Time: 15.279@89.02MPH
Underdog Racing

 

i ran a 15.2 with the mods on my sig...it was a great day for racing.

------------------
1992 305 TBI RS
Flowmaster cat-back exhaust, 14X2.5 open air element...and a T-5 on the way!

 

I have said this a million times but these engines are just to unpretictable. I have heard of stock times as good as high 15's to low 17's! Might have to do with how well the person takes care of the car and if the car is fully tuned.

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

I for one don't think it has so much to do with the engines, but where the track is located, and most importantly the experience of the person driving the car. Tires and suspension also heavily impact drag times. Just simply saying it's an L03 doesn't accomplish much, but mine was dynoed at 158 RWP with my mods mentioned above and I have a best of 15.7.

Jason

 

Mine went 15.68 stock ,minus air cleaner, 50# air in the front tires w/ 4* advanced timing. It now runs 14.91 with mods below and uncapped exhaust w/ a 70/30 mix of 93 octane and 105 octane.

A friend's 89 Formula went 15.98 stock, so I guess it just depends on the car.

Underdog RS, I was running 15.32 when I had all the mods below except 'Vette servo and 3.42's. When you get gears and Vette servo/shift kit, you ought to be in 14.70-14.80's easy. 15.28 is pretty quick for 2.73's. These cars have 9.5:1 compression and they like about 6* adv timing and a little higher than 93 octane gas (don't try to run straight race gas 100-110, just blend some with your pump gas and put about 50# of pressure in your front tires and I think that car will surprise you. I would also get a cut-out put in before the cat, for use at the track, bacause I still have stock manifolds/y pipe and ny cut-out picked my up almost 2 tenths.

------------------
82 Z28 350, Ported #882 Heads, Performer RPM cam and intake, hedman headers,650 Demon carb,
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Best ET: 12.52@107.2
Future plans: Dart headed, Roller cammed 383 in early '01


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock
New Best ET: 14.91 @92.9
Bassett Racing
Mid Atlantic F Body -82 Z28 Page

R.I.P. Dale Earnhardt #3

[This message has been edited by Basett Racing (edited February 22, 2001).]

[This message has been edited by Basett Racing (edited February 22, 2001).]