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

What would you do to an LT1

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Old Sep 26, 2002 | 09:13 PM
  #1  
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Default What would you do to an LT1

Here are my objectives.

1. Street legal
2. Great street driver
3. Able to munch 99.9% of ricers
4. Able to give Z06 and Vipers a run and still win

Lets say we have a $3500 budget.
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Old Sep 26, 2002 | 09:45 PM
  #2  
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Default Re: What would you do to an LT1 (Glasman66)

See sig. Oh, and ah, stock, you should kill ricers. :yesnod:


[Modified by 95AquaC4, 8:46 PM 9/26/2002]
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Old Sep 26, 2002 | 10:09 PM
  #3  
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Default Re: What would you do to an LT1 (Glasman66)

Cold air induction

Long tube headers

Hot cam kit (w/ springs)

1.6 Roller Rockers

Have heads done (ported etc.) and intake manifold matched to heads

52mm throttle body

AFPR might be needed

I think to beat Vipers and Z06's you will have to spend more, very likely NOS in addition to above. Or a super charger but NOS would be cheaper and your engine might last longer on occasional NOS spraying as opposed to being on boost all the time.


[Modified by Lone Ranger, 8:10 PM 9/26/2002]
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Old Sep 27, 2002 | 10:00 AM
  #4  
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Default Re: What would you do to an LT1 (Glasman66)

New ported heads (LT4 or AFR) and cam, gears, 52mm TB, custom chip.
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Old Sep 27, 2002 | 10:05 AM
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Default Re: What would you do to an LT1 (Glasman66)

Does street legal to you mean emissions legal?

If that's not a concern, you need to look here.
http://www.wku.edu/~nathan.plemons/htmls/corvette.html

Should keep most of the ricer's in check. It will run with a ZO6. Given a more aggresive cam you could walk away from a ZO6
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Old Sep 27, 2002 | 10:30 AM
  #6  
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Default Re: What would you do to an LT1 (Glasman66)

Before I dropped money on the motor I upgraded the chassis.

Gears (4.10)
Hurst Shifter
Poly bushings
Sway bars (30mm/26mm)
Shocks (Q1A/HAL)

If you pay to have this installed, figure ~$1500-$2000. That leaves you $1500 for some long tubes and a catback.

Eric


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Old Sep 27, 2002 | 10:35 AM
  #7  
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Default Re: What would you do to an LT1 (silver & red CE)

A different approach, but it certainly works. In the end I'm gonna have 4.10's anyway and probably do some suspension work too. It's all a mater of what you feel is most important.

My Service Ride Control light that was on when I bought the car, still on. So you know the philosophy that I took :D
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Old Sep 27, 2002 | 12:53 PM
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Default Re: What would you do to an LT1 (Nathan Plemons)

A different approach, but it certainly works....
It's also my goal to make a Viper/Z06 killer, but IMHO, to hammer a Viper or ZO6, it'll take more than an engine. I feel it's important to have a chassis that can handle the power, I expected my Vette to handle like it's on rails. With the stock suspension I really hated all the body lean in the corners. I just didn't feel the stock suspension was up the stock HP, much less 360 RWHP.

I've got the HOT cam in my basement, getting ready to purchase some long tubes (the Exotic Muscle stainless are looking good). If the economy picks up a littie, I'll have my heads ported, otherwise I'll stop at the cam/long tubes and wait a year for new heads.

If he can do all the work himself, he can make a ZO6 beater for $3.5 grand, but if he's paying labor, I'm betting it'll be closer to $6,000-7,000.

Eric
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Old Sep 27, 2002 | 03:03 PM
  #9  
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Default Re: What would you do to an LT1 (silver & red CE)

It's also my goal to make a Viper/Z06 killer, but IMHO, to hammer a Viper or ZO6, it'll take more than an engine.
Absolutely. Ideally you have everything, the engine and the suspension. I believe though that doing one or the other first does not affect doing the other. So it's a matter of what you feel is more important. I'm of the impression that my car handles very well for as far as I feel comfortable driving it. So I decided to go the power route first. If you feel like the car is soft or whatnot then for you reworking the suspension is probably your best bet. It's all in what you feel comfortable with.

I don't have the money to do both at once, most of us don't, I wish I did. That's just what I'm trying to say. I felt more comfortable applying more power to the road and just driving moderately. If you feel like driving more aggressively with your current power, go for that first!

That's all I mean by "different approach" In the end we all want the same thing, it's just the route we choose to get there.

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Old Sep 27, 2002 | 03:16 PM
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Default Re: What would you do to an LT1 (Nathan Plemons)

That's all I mean by "different approach" In the end we all want the same thing, it's just the route we choose to get there.
Nathan,
No offense taken, I agree with you 100%. I have to admit it took me a few years to get used to my LT4 Vette's power. I supposed that's why I went for the suspension first. Not to mention I too have a limited budget, just ask my wife :cry

As far as the routes, I'll bet when we're done are cars will be very similar.

:cheers:

Eric
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Old Sep 27, 2002 | 03:21 PM
  #11  
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Default Re: What would you do to an LT1 (silver & red CE)

I have to admit it took me a few years to get used to my LT4 Vette's power.
I'm not used to the power myself. I've been driving it since January 15th 2001 and have not ever had it 8 months without making it faster somehow. I've got plenty of power to get me in trouble with, that's why I try to concentrate on straight line power. I know I can't handle the car in the corners as well as I should so I just slow way down. I don't have any good places to explore the car and test it's limits that don't have catastrophic effects.

I'm probably a discrace to any Vette owners who can really handle their cars.
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Old Sep 27, 2002 | 03:22 PM
  #12  
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Default Re: What would you do to an LT1 (silver & red CE)

Eric, how are the QA1 shocks for agressive cornering? I've read from other members that they are best for drag racing and Koni is the better for twisty stuff. Any input from you on this matter?

Sorry to have gone off topic on this.....
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Old Sep 27, 2002 | 03:34 PM
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Default Re: What would you do to an LT1 (Goody)

Eric, how are the QA1 shocks for agressive cornering? I've read from other members that they are best for drag racing and Koni is the better for twisty stuff. Any input from you on this matter?
I'm not a racer/auto-x'er, and the only track I've driven on is the drag strip. I am not really qualified to comment.

I choose Q1A's so I could have easily adjustable shocks at a reasonable price. I wanted to find a used FX3 system, but finding a complete kit is like finding hen's teeth. Having said that, so far I'm happy with them. The Koni's aren't easy to adjust and cost more so I passed.

Eric
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Old Sep 27, 2002 | 09:54 PM
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Default Re: What would you do to an LT1 (Nathan Plemons)

I'm probably a discrace to any Vette owners who can really handle their cars.

Heck, probably most of us on here could say the same thing if we were honest. :) And, if you can drive the car to its maximum, then you probaby should or could be a race car driver, which a lot of people have to go to driving school for such skills. I think the main thing is to know your own driving skill limits along with your cars limits and that should keep you out of trouble for the most part.
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Old Sep 28, 2002 | 12:03 AM
  #15  
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Default Re: What would you do to an LT1 (Glasman66)

Copy my stock bottom end combination and you'd be fine ;)
No one is faster. :yesnod:
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Old Sep 28, 2002 | 02:49 AM
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Default Re: What would you do to an LT1 (mackeyred96)

Heres my old combo... and i BEAT all the zo6s ive raced... all the way too 175 mph.

full length headers.. no cats... stock exhaust.
Power pulleys
K&N filter
Mezziere pump
A computer chip ( callaway > although u dont have to get an expensive one)
1.6 roller rockers..
new LT1 valve springs + pushrdos ( what a difference!!!)
crane ignition
4.09 gear
relocated mat sensor
tpi airfoil

To make sur eu beat z06s and vipers.... port the heads KEEP stock VALVES... LT1 heads dont like bigger than 2.00 intake valves. and port match intake. leave the stock cam. if u want more lift, go with an ls1 rocker or even crower 1.8 rockers and get the shoppe to get custom length pushrods so they work fine.

best time on my bridgestone so2 tires (275/35/18 >> which slow me down)
is 12.71 @ 112.8 And REMEMBER if that doesnt impress you.... i shift into 5th at the end of the quarter mile, which effectively slows down my time and my mph. if i had 200 more rpm, i figure i could run 114-116 mph

C4 :boxing c5......... C4 ;) = c5 :cry
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Old Sep 28, 2002 | 02:51 AM
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Default Re: What would you do to an LT1 (5abivt)

thats with a full tank of gas ( for traction!!) and a system in the back.. done at englishtown NJ in 2000. weight 3444 with me in it. :cool:
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