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Old 02-29-2012, 02:11 AM   #1
Samcro92
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Member Since: Feb 2012
Default 1985 L98 Stock motor upgrades?

This is a repost of another question I asked but I'm putting in more specifics. I have a 85 L98 corvette, stock motor, with straight pipe exhaust. I wanted to upgrade the motor by putting on a few thinks, a new intake system, runners, throttle body, and chip. I don't want to do anything extreme like cams or anything where I have to take out the motor and take off a bunch of things because I don't have the experience or money. So saying that, what are your thoughts? Anything other simple upgrades to get some more HP?
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Old 02-29-2012, 02:13 AM   #2
Samcro92
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Sorry about the typos
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Old 02-29-2012, 04:29 PM   #3
gerardvg
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Location: Melbourne, Australia Victoria
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Hi
Cold air intake cut your air filter lid restriction, fit headers and an adjustable fuel pressure regulator is the way to go
When i first got my 85 it ran mid 14.5 sec quarters i put the headers on and set the fuel pressure from std 30 psi to 40 psi, put a cold air intake filter on plugs leads and tune. went back to the track and did a 13.4 sec quarter,all else stock.

The headers are your biggest bang for the buck
I highly recommend bosch 111 injectors.
The vette is now supercharged and a lot quicker but those were my first steps, you do not want to loose that low down torque fitting too big a camshaft that is for sure!.
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Old 02-29-2012, 07:07 PM   #4
cuisinartvette
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Skipe the chip and throttle body unless you just like spending money
Once the exhaust is done go after the intake next.
Some like adding springs and 1.6 rockers
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Old 02-29-2012, 09:25 PM   #5
John A. Marker
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I would suggest that you read Forum member Vader86's web site. There is lots of information there for you.

Forget the chip
__________________
1995 LT1 6 speed - stock.
SOLD to son ** 1985 Coup -ZZ4 balanced, LPE 74211 , AFR 180 heads, SuperRam base, runners & plenum, cut out air box, K & N , power coupler, 52MM TB, March pulleys, AFPR, Accel injectors, Walbro FP, 1.6 RR, chip by TJWONG, 160 stat, cut back plugs, 8.5MM MSD wires, custom camber-brace,TRANSGO shift kit, 2400 stall converter, cross drilled rotors, SS brake lines, VBP camber rods, IAS Edelbrock shocks, exhaust, Magnflow cat, 3.07 gears, 13.2 @107.2 MPH in 1/4
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Old 02-29-2012, 09:25 PM
 
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