LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Need more power in the higher RPM range

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Old 08-20-2007, 09:53 PM
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Default Need more power in the higher RPM range

I'm going to do a full exhaust set up. What should I do after that? I don't think I can afford a head swap, but what about changing my cam? My car feels good up until about 3,500RPM, then it feels like it gives up. I don't mind my gas mileage decreasing slightly, but I don't want a choppy idle or a plummet in fuel economy. As it stands, my car only gets about 18MPG. That's mainly highway driving, very little spirited driving. I usually baby it. I figure a tune can net me some power, plus better gas mileage. Whatever I gain from the tune as far as fuel economy will probably be eliminated from a new cam. That's fine. As long as I get something similar to what I get now.

What should a cam swap cost, including parts and labor?
Old 08-20-2007, 10:09 PM
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There's something wrong with your car. You should be getting at leats 24 mpg on the highway, and the stock engine should pull strong through 5000 RPM. Do you have a check engine light? How many miles on the car? Maybe you should do a compression check, if OK, do a tune up, plugs and wires, air filter, get the injectors cleaned. As for a cam change, I'd say $400 - $500 in parts and 14 - 18 hours labor (what's the shop rate?). Then you might need a timing chain $250 for a good one and maybe a new distributor while you're in there $300 -$500. So you could easily exceed $2000.
Old 08-21-2007, 12:28 AM
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Mine stock pulled great to 5250 with 130k miles, somthing wrong with your ****.
Old 08-21-2007, 06:19 PM
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I just did a tune up less than 2k miles ago. The filter is clean and so are my injectors. I think I worded it wrong. It's not so much that it craps out up top, it simply doesn't have the same power as it does off the line. It has the low end grunt, but doesn't pull with the same power up top. I want it to keep pulling as hard as does off the line.
Old 08-21-2007, 07:16 PM
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Could be worn out springs or a bad lifter or rocker.



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