I was thinking of taking my trans am to the track. I bought the car 3 months ago, slightly wrecked, no mechanical damage. The guy I bought it off of said that the previous owner had rebuilt the engine and turned it into a 350. Ofcoarse you can't turn a 305 into a 350 just by rebuilding the engine. I'm pretty sure it's just a 305, judging from the engine parts and configuration. Anyway it's seems to run better than a stock 305, I was just wondering what you guys were running at the track, both stock and modified, that might give me an idea when I take mine out.

 

I Have a 350 TPI Bone stock I got 14.7@94 with a 2.11 60* , Modified still with stock heads and camI got 14.030@98 with a 2.18 60*

 

From the outside, the 305 and the 350 look the same. The only way to tell them apart is to look at the casting #'s. They are on the block and heads. Go looking and you will find them, and if you post them here someone will know what ya got under there. As far as performance at the track, expect 15.0-15.9 with a 305, 14.5-15.0 with a 350, depending on gearing. Obviously these are estimates from what I have seen at the track. Best thing to do is go to your local track and give it a few runs.
Good luck

 

88 Trans Am w/ 134k miles
305 TPI
World Class T-5
drum/posi 3.08 rear

K&N open filter,T.P.I.S. airfoil,semi-ported plenum,timing @ 10* initial,MSD cap/rotor/8.5mm wires/coil,Centerforce dual-friction clutch,aluminum driveshaft,Flowmaster 3" dual chamber cat-back exhaust(un-gutted cat)......

reunning on semi-bald street tires,sitting at 210*,w/ a bad launch,A/C on,cooling fans both on,this is what i got at Atco Raceway in May:
R/T-1.210
60'-2.212
330'-6.250
1/8-9.582
MPH-73.77
990-12.373
1/4-14.895
MPH-90.78

the MPH should have been a bit higher,but for some strange reason i decided to shift into 4th gear before i passed the traps,lol..
im usually at about 93mph when i pass...

Andy

------------------
The "House" has spoken...
check out my my 88 WS6 Trans Am

We are the seeds of legends,our true origins are unknown...WE SIMPLY ARE...

 

Redhot...why in gods name did you have your a/c on at the track?

 

I was wondering, what does WS6 mean? I have that on the wheels of my firebird.

 

It's a performance package on firebirds, I believe it's just suspension though.

------------------
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
3:73 Posi
Rebuilt 700R4 vette servo and .500 boost valve
B&M Megashifter, 5" Autometer Tach w/shift lite
Soon to be installed
3" Hooker Aero Chamber

 

I do have a performance suspension on my car. Thanks for the info.