C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Suggestions for future projects?

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Old Jan 23, 2011 | 09:44 PM
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Default Suggestions for future projects?

Does anyone have any projects that they have done that they could recommend to me? Just maybe something you did that made a noticeable difference in either the way the car ran or the way the car looked.

Also, my car about 103,000 miles on it, and I've only owned it for almost 2 months. So, assuming that most parts are original on my car, what are some things I need to think about replacing soon? (Note: I've changed the tires, battery, oil, oil filter, coolant, belt, tensioner, spark plugs, and PCV valve already.)

Thanks!



Last edited by Amethyst643; Jan 23, 2011 at 09:50 PM.
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Old Jan 23, 2011 | 10:00 PM
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Updating the wheels makes a huge difference. Get rid of the high mount stop light. Change the heads/intake/cam for performance.
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Old Jan 23, 2011 | 10:39 PM
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Looking around at other posts, I came across Taylor spark plug wires. I did a search on their website and came up with the following custom fit wires the for L98 engine.

64609 8mm High Energy; Ignition Wire Set; Custom Fit = $29.39
74009 8mm Spiro Pro; Ignition Wire Set; Custom Fit = $60.32
51009 8mm Street Thunder; Ignition Wire Set; Custom Fit 8 Cylinder = $29.39
91039 8mm Street; Ignition Wire Set; Custom Fit; Full Metal Jacket = $165.86
84009 ThunderVolt® 8.2mm; 40 ohm Ferrite Core Performance Ignition Wire Set = $66.41

Does anyone use any of these. And, is there anything to benifit from installing new spark plug wires?
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Old Jan 23, 2011 | 10:57 PM
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And, is there anything to benifit from installing new spark plug wires?
none, same with coils, caps etc. HEI is a good system.
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Old Jan 25, 2011 | 11:17 PM
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ttt
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Old Jan 25, 2011 | 11:58 PM
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Injectors. Flat out. Replace them. Best single service/upgrade you could do to a 100k, 20yr-old car FI car.
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Old Jan 26, 2011 | 12:12 AM
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Originally Posted by GREGGPENN
Injectors. Flat out. Replace them. Best single service/upgrade you could do to a 100k, 20yr-old car FI car.

Any thoughts on which brand to use? Does it matter? What do they normally cost?
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Old Jan 26, 2011 | 12:59 AM
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Originally Posted by Amethyst643

Any thoughts on which brand to use? Does it matter? What do they normally cost?
Three words... FIC

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Old Jan 26, 2011 | 01:31 AM
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Originally Posted by GREGGPENN
Three words... FIC

Yea I did a search of the forums and it looks like the FIC Bosch Design III 22lb fuel injectors is the way to go (for $169.95 at fuelinjectorconnection.com). I'm thinking I'll just go ahead and get em. I'm sure my current injectors are original (Multecs?) so I might see some improvement for getting new ones.

I shouldn't need the $30 gasket set it recomends I buy with them, should I..?
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Old Jan 26, 2011 | 09:56 AM
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Yes you will need the gaskets they reccomend when replacing the L98 injectors because you have to take part of the intake off.

Plug wires the spiro pros should be fine - I use them in my 92. When I had an 88 I just used whatever I could get at the parts store

If you still have the "frisbee" toss it.

One of the "seat of the pants" upgrades I did on my 88 was to change ALL the fluids.
Auto trans fluid, brake fluid, diff fluid . . .
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Old Jan 26, 2011 | 10:38 AM
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If you replace injectors USE the oring kit for the fuel rail crossovers, common pieces that get looked over then are responsible for fires.

I have a new set in the box think its missing the two top runner gaskets otherwise complete and new Fel Pro. Cheap cheap.
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Old Jan 26, 2011 | 11:17 AM
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Some things I did to change my car were to send the interior bezels to American Hydrocarbon, (you could also just paint them if you wanted a solid color, I would advise using a clearcoat on top of the paint). I added edelbrock runners and painted the intake, changing the wheels also makes a huge difference. You could also try different hood stripes or the black vinyl on the gills , most are available as stick on and can be removed; I went with two on the cowl of the hood, painted on. Different exhaust tips and rear emblems were among the things I did in the first few months after I got mine because they can both be done at relatively low cost. Hope that helps
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Old Jan 26, 2011 | 09:46 PM
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Originally Posted by jaa1992
Yes you will need the gaskets they reccomend when replacing the L98 injectors because you have to take part of the intake off.
K, will do.

Originally Posted by jaa1992
If you still have the "frisbee" toss it.
What's "the frisbee"?
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Old Jan 26, 2011 | 09:48 PM
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Also, for those of you that have replaced the fuel injectors yourself, is it easy to do? ..and will I need any special tools?
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Old Jan 27, 2011 | 08:55 AM
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Look down at the front of your motor.
Attached to the crank or waterpump (I forget which, haven't had the 88 for 6 years) is a flat metal disk (the "frisbee").
IIRC it started in 87 and lasted thru 89. It was put on to help with vibrations when the AC compressor turned on - or to add weight I can't remember which.
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