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

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Old May 8, 2007 | 01:36 PM
  #1  
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Default Myth Busted

LT1 intake conversion is a major PITA Every step of the way is Mod something,I'm 95% done, now I have the fricken TV cable ect. to deal with,I bought a bracket for a 93 Lt1 camaro puts cables on bad angle.Tried to get help guess know one has ever done a conversion on a automatic. I'm tempted to jerk the garbage off before it cost me a trans, and go carb.

Last edited by MR NICE; May 9, 2007 at 08:20 AM.
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Old May 8, 2007 | 04:44 PM
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The '92 had the LT1 and the 4L60 (not 4L60E) - perhaps parts from
this year would be more compatible with your existing '85 components?

A separate but related matter is the vertical position of the distributor
gear. Have you checked the pattern between the cam and the dist
gears to make sure that the modified intake has the distributor housing
located for good gear life?

.
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Old May 8, 2007 | 06:29 PM
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Someone save me before I switch to a carb
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Old May 9, 2007 | 12:24 AM
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I put LT1 intake on my 89 about 4 or 5 years ago.

Mine is 6 speed though.

Here is what I can offer you as I modified the throttle bracket, which should house the other cable as well on an automatic I believe.

I cut the area that the cable went through off of the L98 bracket with a band saw. Then I took the LT1 Corvette bracket and cut out the area that the LT1 cable mounts to it so that there was just a large void there. I measured the difference between where the L98 bracket was and where the LT1 bracket bolts on the intake. (The L98 has a longer distance between the mounting bracket and the throttle body.) Then I welded the L98 piece I cut to the LT1 using some spacers about an inch wide. If you don't get the mounting distance correct, your throttle angle will not get to 100%. I would think you would be able to do this with the transmission cable as well.
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Old May 9, 2007 | 01:27 AM
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Originally Posted by MR NICE
LT1 intake conversion is a major PITA Every step of the way is Mod something,I'm 95% done, now I have the fricken TV cable ect. to deal with,I bought bracket for 93 Lt1 camaro puts cables on bad angle.Tried to get help guess know one has ever done a conversion on a automatic. I'm tempted to jerk the garbage off before it cost me a trans, and go carb.
Should've tried the search function.
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Old May 9, 2007 | 07:39 AM
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Originally Posted by CentralCoaster
Should've tried the search function.
been there and done thatWould love to see a completed Intake swap with auto trans I'm thinking it has not been done

Last edited by MR NICE; May 9, 2007 at 07:51 AM.
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Old May 9, 2007 | 08:41 AM
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I guess John Millican burned up some trannies cause his site shows it not running straight with TB linkage:

http://www.lt1intake.com/files/update.htm
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Old May 9, 2007 | 08:44 AM
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Default Kids today.... (sigh)

you thought this was an "easy bolt on" conversion?

Guys today have it so much easier... hell, back when I started building/racing cars, oftentimes you HAD to "manufacture" or modify your parts as you couldn't jump on the Net, call up Scummit, etc. and have your solution inhand. Those of us who could, did... and that's what separated the runners from the posers.

The more things change, the more they stay the same.
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Old May 9, 2007 | 09:03 AM
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Originally Posted by RacerX70CC
you thought this was an "easy bolt on" conversion?

Guys today have it so much easier... hell, back when I started building/racing cars, oftentimes you HAD to "manufacture" or modify your parts as you couldn't jump on the Net, call up Scummit, etc. and have your solution inhand. Those of us who could, did... and that's what separated the runners from the posers.

The more things change, the more they stay the same.
So what part of your responce is it that is trying to help with my problem OLD MAN I can fab any part I need,just want it right,being at 45 yrs old I have not work on cars nearly as long as you,so how about some real help on my TV cable set up?or have you done forgot how to work on them??nap time old man

Last edited by MR NICE; May 9, 2007 at 10:15 AM.
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Old May 9, 2007 | 09:30 AM
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Hey, hey, hey!!

Calling him an OLD MAN is just stating fact.
Calling him STUPID is a


Larry
code5coupe

__________
Not easily impressed....

Last edited by rocco16; May 9, 2007 at 09:33 AM.
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Old May 9, 2007 | 09:37 AM
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Originally Posted by rocco16
Hey, hey, hey!!

Calling him an OLD MAN is just stating fact.
Calling him STUPID is a


Larry
code5coupe

__________
Not easily impressed....
There I fixed it, now what about my TV setup????
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Old May 9, 2007 | 09:53 AM
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Default I need no help defending myself...

First off, you're older than I am by two years, so the first round of Ensure is on you! Since you are older, then you should already know there's no such thing as "easy" when it comes to car crafting

Kvetching on a forum about your problem isn't going to fix it, dude... My advice to you is to take some time away from the project, engage the gray matter and work the problem...it's not exactly rocket science to fabricate or modify a bracket. That's how it's done... think it through.

Name calling isn't the way to gain friends or solicit technical advice (unless you want incorrect advice, of course).

Have a nice day!
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Old May 9, 2007 | 09:58 AM
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Originally Posted by RacerX70CC
First off, you're older than I am by two years, so the first round of Ensure is on you! Since you are older, then you should already know there's no such thing as "easy" when it comes to car crafting

Kvetching on a forum about your problem isn't going to fix it, dude... My advice to you is to take some time away from the project, engage the gray matter and work the problem...it's not exactly rocket science to fabricate or modify a bracket. That's how it's done... think it through.

Name calling isn't the way to gain friends or solicit technical advice (unless you want incorrect advice, of course).

Have a nice day!
Dude the first comment out of your mouth was some smart azz bull$hit ,no offence taken.
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Old May 9, 2007 | 10:07 AM
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Originally Posted by SpedRacr93
I put LT1 intake on my 89 about 4 or 5 years ago.

Mine is 6 speed though.

Here is what I can offer you as I modified the throttle bracket, which should house the other cable as well on an automatic I believe.

I cut the area that the cable went through off of the L98 bracket with a band saw. Then I took the LT1 Corvette bracket and cut out the area that the LT1 cable mounts to it so that there was just a large void there. I measured the difference between where the L98 bracket was and where the LT1 bracket bolts on the intake. (The L98 has a longer distance between the mounting bracket and the throttle body.) Then I welded the L98 piece I cut to the LT1 using some spacers about an inch wide. If you don't get the mounting distance correct, your throttle angle will not get to 100%. I would think you would be able to do this with the transmission cable as well.
Looks like I'll fab the 93 bracket to work,Question if I shorten the throttle cable will I have to shorten TV cable?or will it adjust?
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Old May 9, 2007 | 10:08 AM
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That doesn't look too difficult. I'd try it with a piece of aluminum first. Or cut up two tv brackets and weld/screw them together.

Visit your local junkyard and check out some GM cars.
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Old May 9, 2007 | 10:14 AM
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Originally Posted by SpedRacr93
I put LT1 intake on my 89 about 4 or 5 years ago.

Mine is 6 speed though.

Here is what I can offer you as I modified the throttle bracket, which should house the other cable as well on an automatic I believe.

I cut the area that the cable went through off of the L98 bracket with a band saw. Then I took the LT1 Corvette bracket and cut out the area that the LT1 cable mounts to it so that there was just a large void there. I measured the difference between where the L98 bracket was and where the LT1 bracket bolts on the intake. (The L98 has a longer distance between the mounting bracket and the throttle body.) Then I welded the L98 piece I cut to the LT1 using some spacers about an inch wide. If you don't get the mounting distance correct, your throttle angle will not get to 100%. I would think you would be able to do this with the transmission cable as well.
SpedRacer, So you did not shorten your throttle cable?did you hook up cruise control? Thanks

Last edited by MR NICE; May 9, 2007 at 10:22 AM.
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Old May 9, 2007 | 10:19 AM
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Originally Posted by CentralCoaster
That doesn't look too difficult. I'd try it with a piece of aluminum first. Or cut up two tv brackets and weld/screw them together.

Visit your local junkyard and check out some GM cars.
Good idea,if I cannot make the brackets I have work.
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Old May 9, 2007 | 07:02 PM
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Originally Posted by MR NICE
SpedRacer, So you did not shorten your throttle cable?did you hook up cruise control? Thanks
Nope, left the throttle cable alone, just moved the mounting surface far enough back that it had the correct tension so that I could open it 100% and close it 0% on the TPS without worry. Yes, I hooked up the cruise control as well.

The best way to see what I am trying to describe is if you slip your cable through the mounting bracket and hook it to the throttle body and then pull back on the sleeve so as not to move the actual cable/throttle, but have it tight, you should notice that there is a space of about an inch between where the LT1 cable snaps into place and where your cable needs to be... hence the spacer that I welded on.
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Old May 9, 2007 | 11:14 PM
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Default Tv Cable!!!!

Careful with modifying that TV Cable, that controls all of your shift pressures in your 4L60. It gets real easy to burn those up if you modify that cable.
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Old May 10, 2007 | 07:33 AM
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Originally Posted by dadsC4
Careful with modifying that TV Cable, that controls all of your shift pressures in your 4L60. It gets real easy to burn those up if you modify that cable.
Looks like I'm running the 93 bracket which requires a shorter throttle cable,Question will I need to shorten TV cable?I hooked it up and tried to adjust but it never clicked into place like it did with the tune port set up,is this because the TV cable is to long?
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