what can i do to my stock 1988 iroc 350 tpi to make it run low 14's high 13's without hurting gas mileage and not coasting over $600. Also i dont want to have to tear the engine apart.
thanks!

 

for 600 not much to get it where you want it look at my sig i would definately go the other route next time meaaning spending the money on gears at least 3.45's,a good shift kit,and a vigillante converter,along with suspension tuning the converter goes for 700 alone but the guarentee 1/2 second drop from it someone is selling one on the classified section the biggest thing you can do to hit your goals is gearing,trans work,and converter,or you can do the nitrous thing but if it isnt dialed in perfectly it'll eat that stock engine quick

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87 trans am 350 L98 aluminum heads,LT4 hot cam,slp runners,headers,y-pipe,edelbrock base,hi flo cat,air foil,ported plenum,t-5 tranny w/centerforce clutch and a 3.27 9bolt,ads strip chip,relocated iat sensor,hollowed maf

14.10@97mph w/2.01 60' LOOKING TO TRADE?ANYONE

 

The TGO Tech Central has a listing of all the free and low cost mods that you can do for your car. Here is a list of a few mods mentioned there. -->Port the plenum opening walls down flush. Get an Adjustable fuel pressure regulator-adjust to 48 to 50psi -what ever makes the most power for your car.(I just bought a used AFPR for $40 shipped from the TGO classifieds) Get a TB Airfoil (don't spend more than $30 shipped for one.) Remove the airfilter splash guards and replace filters with the K&Ns. Use a 180' ($8)thermostat with a low temp fan switch.($35) Bump your timing up 6' to 12' and use 92-93 octane gas. The Board Archives is a good place to look for free-low cost mods as well.


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89 IROC-Z 5.7L
130,000 MILES
2.77 GEARS
K&Ns FILTERS
ALL FREE MODS
FLOWMASTER MUFFLER
PERFORMANCE RESOURCE CHIP
Best 1/4 E.T. 14.37 @ 95 MPH
Best 1/8 E.T. 9.22 @ 76 MPH
Best 60ft. 2.07

 

nitrous wont hurt your gas milage and it'l get you into the 14's pretty easily it won't cost more than $600 if you install it yourself

 

Look @ my sig, the mods should work better on a 350

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91 B4C 305 TPI - SOON TO BE 383
TREMEC 5-SP, STOCK 1-BOLT REAREAND w/342 GEARS, K&N, AIRFOIL
EDELBROCK HEADERS, DUAL CAT TO HOMEMADE Y-PIPE & 3.5" SINGLE PIPE W/ FLOWMASTER, CRANK PULLEY, MSD, FUEL PRESS REG, COWL HOOD, WELD WHEELS
14.1@ 98MPH
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OTHER RIDE
67 CAMARO - STREET CAR, BIG BLOCK, PUMP GAS
350TH w/ATI 10", 12-BOLT w/373 GEARS
10.94@124.13 ON MOTOR - ET-STREETs w/MUFFLERS

 

i cutted the MAF screens one day. i used my friend leatherman and my 20$ toolkit. next thing will be using my 15$ dremel-look-a-like-scary-electric-tool to remove bumbs after TB from the plenum. anyway, i felt like engine is getting rpm better than before...

i think it will be like 0.05 improvement...



-P

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Pontiac Trans Am GTA'89

CC1 GW6 G80 JG1 L98 MXO N64 WS6 822

mods: firebird '89 four spoke steering wheel and i'm still not running low 13's yet!

 

look in da sig, but ya aitn gona get there for $600 unless its spray.

 

opps, sorry, forgot the sig

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1988 IROC-Z L98
License Plate: STG KLR 1
Engine Mods:
Edlebrock TES Headers, Hypertech Chip, Flowmaster Muffler, Intake Airfoil, Removed MAF Screens, MSD-6A, MSD Blaster 2 GM Coil, bored .030 over.
Nitrous System: NOS 05151 Plate Kit with Fogger Nozzels. 100hp shot. Not installed yet.
Suspension Mods:
Lakewood Traction Action Lift Bars, Hal Rear Shocks
Trans Mods:
2,500 stall converter, Redline clutches,Heavy Duty Steels, Trans-Go reprograming kit , Heavy Duty 2-4 band, Corvette Servo, B&M Mega Shifter w/ Carbon Fiber Handle (looks sweet in a black car!)
ET: 13.833@99.30 N/A

"If you can put it on your car, its fair" Quote By Guido
Foundering Member of the Illinois Overkill Crew (IOC)
www.mfba.org