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

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Old 07-18-2001, 10:08 AM
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jackyy
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im thinking of putting in the fast chip and a cold air induction system....is that good for more power on my '91 L98 or should i change the throttle body also..pleeze help...im in south florida
p.s i dont want to get into engine work too much
thanx
Old 07-18-2001, 10:15 AM
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Nathan Plemons
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Anything you can do to help the L98 breath is good, but don't expect huge gains. Just a little quicker throttle response.

Old 07-18-2001, 10:32 AM
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jackyy
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thats all it will do?..what else can i do without getting inside that motor?i want to be able to take the mustang guys that act like king ****..
thanx
Old 07-18-2001, 10:44 AM
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Chris@SD
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The chip and the cold air will help. Exhaust will also help a little and will give you a better sound. Pullies are always good for a few ponies also.

Heads and cam are the ultimate in power increase.


Old 07-18-2001, 11:49 AM
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Beach Bum
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Optimize your current set-up first... most people can run several tenths quicker as they sit and don't know it.

Sticky tires and if you have an auto, a good torque converter will have the greatest effect short of going into the motor.

good luck
Beach Bum

Old 07-18-2001, 12:53 PM
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jackyy
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thanx guys...torque converter how much would that run me?
thanx
Old 07-18-2001, 02:34 PM
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GIJoe
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check my the mods ive done on my site...

its taken off 1sec from stock.. not too bad.. no engine mods needed either!

you mean to say you cant take the mustang guys on now? hehehe...

Old 07-18-2001, 02:39 PM
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GlockLT4
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Torque converters can run from $300 to thousands. A good one is the Vigilante. It runs $700 usually. A recommended stall speed for a street vette is 2600-3000. 3000+ is getting unstreetable (is that a word.. hehe)

Old 07-22-2001, 12:49 PM
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jackyy
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ok i called ecklers and this is the setup the recommend....power chip stage 2...thermostat 160 deg. ...throttle body 52mm....cold air rammer....all this 830$ with shipping included..
they said it would give me about 40-50 hp...what do u guys think...in wanted to change the exhaust but cant spend extra money right now...im in south florida
thanx
Old 07-22-2001, 04:03 PM
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AquaMetallic94LT1
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Originally Posted by jackyy
ok i called ecklers and this is the setup the recommend....power chip stage 2...thermostat 160 deg. ...throttle body 52mm....cold air rammer....all this 830$ with shipping included..
they said it would give me about 40-50 hp...what do u guys think...in wanted to change the exhaust but cant spend extra money right now...im in south florida
thanx
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I'd opt for a Superram intake system for max real performance gains. The next one would be the Torque converter.

You should try the lower temp thermostat but I would skip the rest of those mods. 40-50 hp sounds a bit high. More like 10-15 and most of that will be from the thermostat change.



Old 07-22-2001, 05:20 PM
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65Z01
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Don't expect 40-50 HP from those mods, though they will be beneficial. Since you have a SD intake a chip is likely a good idea.

Check out the "easy" mods on my site, with results and cost. I've also removed that "frisbee" for a free 10 HP gain, added the March Underdrive crank pulley for .1 sec off my ET and am now trying to install 1.6:1 ProMagnum full roller rockers. Cutting back the spark plug ground electrodes is another free 10 HP.

I'm also sending you data from a CF build up on an L98. Sorry, if you want this info e-mail me and I'll respond with it.

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