Mark 91RS Supercharged

I finally got my car into the 12's Saturday at the Texas Motorplex. (: This is not a streetable car any longer, but still has the original 95k 305 and T5 tranny.

Race wieght w/driver 3070 (-190 for driver)
It was cool about 55 degrees.


First run:

R/T-----------.584
60'----------1.973
330'---------5.567
1/8----------8.522
MPH---------82.47
1000--------11.069
1/4---------13.184
MPH---------107.15

Second run: Elimination round running on a 13 second index.

R/T----------.658 (didn't want to risk a red)
60'---------1.910
330'--------5.532
1/8---------8.309---------84.12
1000'------10.814
1/4--------12.904*
MPH--------108.04

I ran against a new camaro LS1 that ran a 13.143@106.14. I lost due to running too fast but I was more happy with the 12 second pass. I improved my best time by .5 second (check sig) I will be installing a liquid to air intercooler and Art Morrison front end kit in near future. These should get me deap into the 12's. I am not shelling out money for engine work (heads, cam etc) because I will be installing a 383ci once I get the car totally set up to handle it. No reason to waste money on anything that will not transfer to the 383.



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1991 305 TBI Paxton SN2000,Edelbrock intake and TES, Turbo city TBI,
MSD6a,Eibach drag lauch kit, Hotchkis RTAs and panhard rod, Richmond 3:73 gears and Auburn limited slip, best ET 13.40 @ 105.4 mph

firebird305

THOSE ARE GREAT TIMES!! I'm in awe of you and everyone else on this board running mid 14s or better w/a 305.Maybe mine will run good times one day.

TINFY Racing

not too shabby. those are real good times for a 305. i bet you suprise a lot of poeple especially when they find out its a 305 and not a 350.TINFY

Chad91Rs

Kick *** times Mark.

Willie

iTrader: (1)

Congrats Mark!! Welcome to the 12-second 305 club. At last count, you're #4.

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Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
12.57 @ 111 mph.
12.04 @ 114 mph (50-hp nitrous).
http://members.optushome.com/au/downunder1/rides/willie/willie.html

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.

812MANY

Sweet!

How did you get down to 2800#s??!!!

fiberglass?

lexan?

Mark 91RS Supercharged

In response to your question 812 many.

I purchased the car new with the intent of racing it one day so the only option on the car was the 305. I wanted to keep the wieght to a minimum. Car weighed 3410 with driver with a fiberglass hood, tossing out the spare tire, jack and back bench.

I shed the rest of the weight by removing the front and rear bumper supports, crash bar in both doors, stereo, speakers, passenger seat and also converted to manual steering. The cool thing is you can't tell by looking at the car.

Like I said the car is not really streetable.

I will be adding a 10 point cage shortly.

Mark

firebird305

Hey willie,I checked out your website about your camaro,That's a realley nice camaro you got,And it lives up to the motto that the turbo regal guys live by,"Going fast with class".

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82 firebird with 305H.O.,Block bored .30 over,Keith black hyperutectic flat top pistons for 10 to 1 compression,Turned crank,Magnafluxed connecting rods,Melling H.V. oil pump,and double roller timeing chain,Ported and shaved heads w/3angle valve job,Z-28springs,Summit push rods and comp cams magnum roller rockers,Ported Edelbrock performer r.p.m.intake,Carter 625 afbcarb,Accell spark plugs,wires,and H.E.I.super coil,Heavy duty cap and rotor,Clevite performance cam with 450-460 inches of lift,Comp cams lifters,700r-4 tranny rebuilt with trans-go rebuild kit,corvette servo,New torQue converter,Flowtech headers,Flowmaster muffler,3.73limited slip rear end,Energy suspension bushings from front to rear,Energy suspension tranny mount,New center link,ball joints,trans-am steering box,Hopeing to run good times when i FINEALLY do get to the track!!