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

Can someone Measure...

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Old Apr 15, 2004 | 11:03 AM
  #1  
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Default Can someone Measure...

The throttle cable . More specifically the part near the throttle bracket on the plenum.

I just spoke to GM and there are different cables for 89-91. Corky measured his 85, but they are very different from what I have.

i am trying to determine if the problem is from Cable stretch or someone putting the wrong cable on the car or geometry.

My cable is WAY WAY loose if I do not use spacers behind the bracker to hold the cable away. I have about 4" of spacers. Seems every year I need more and more. Something is not right.

Thanks guys. Get the measurement with the cable fully extended if possible. It will be a great help in determining what the problem is and save me some cash from buying a cable I really do not need if its not infact the cable.

:cheers:


[Modified by ski_dwn_it, 11:04 AM 4/15/2004]
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Old Apr 15, 2004 | 11:07 AM
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Default Re: Can someone Measure... (ski_dwn_it)

I might have not been clear enough on what I need measured.

What I need is a measurement of how far out past the housing (outter part of the cable, does the inner (small cable) extend when pulled all the way out?

Mine now is about 9"! :confused:
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Old Apr 15, 2004 | 11:17 AM
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Default Re: Can someone Measure... (ski_dwn_it)

Mine now is about 9"! :confused:
Ya wouldn't stretch that sucker so much if you didn't abuse the gas pedal so often.

I'd have measured mine if I thought a dimension from a Crossfire would of any use.

RACE ON!!!
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Old Apr 15, 2004 | 11:27 AM
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Default Re: Can someone Measure... (ski_dwn_it)

I have a 85 so that would help you not..TTT for you.
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Old Apr 15, 2004 | 11:42 AM
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Default Re: Can someone Measure... (Corvette0096)

is it the same as an 86 if it is i have a new not used if it works ill send it to u :thumbs:
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Old Apr 15, 2004 | 11:53 AM
  #6  
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Default Re: Can someone Measure... (ski_dwn_it)

Guys. thanks for the offers.

According to the GM parts guy locally they list 2 different ones. 84-88 and 89-91. Not sure what the differences are, as I said he did not have any dimensions to go off of. The difference would have to be on the cabin side of the cable, otherwise the SR etc would all have to be specific to years, right?

That is what is baffling me with Corky's 3 3/4" -4" measurement. Mine is about 9"! :confused:
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Old Apr 15, 2004 | 01:06 PM
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Default Re: Can someone Measure... (ski_dwn_it)

My 90 measures 7" from the little bar and the end of the cable to the shoulder that sits against the bracket, with the cable fully pulled out.

You should take a look at where the cable attaches to the pedal. I've put spacers there to take the slack out of cables to get to fully WOT .

Edit : The difference between the two cables is how they attach to the throttle body. The earlier cable use Jesus clips to hold the cable to the throttle body. The later throttle bodies use a bell crank type arrangement with no clip to drop (and say "Oh Jesus")


[Modified by SloRvette, 6:12 PM 4/15/2004]
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Old Apr 15, 2004 | 01:16 PM
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Default Re: Can someone Measure... (SloRvette)

Thanks a million sloRvette!

I will check it out tonight after I get home from work :cheers:
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Old Apr 15, 2004 | 01:47 PM
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Default Re: Can someone Measure... (ski_dwn_it)

I think the later throttle bodies had the cable wrap around a cam on the TB, while the older style were clipped on and were linear. The newer style is not as sensitive off idle (due to cam effect) than the older styles were. I'd like to upgrade to the cam style TB and cable.....so i can more easily set my launch rpm. Right now, moving the pedal about a millimeter changes my rpms by about 300 :crazy:
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Old Apr 15, 2004 | 04:17 PM
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Default Re: Can someone Measure... (ski_dwn_it)

Mine now is about 9"! :confused:
Bragging are we?. :jester

I'll measure it on my 91 when I get home (08:00ish) and let you know.
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Old Apr 15, 2004 | 07:54 PM
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Default Re: Can someone Measure...

6 1/4 inches from mount on plenum to tip with it disconnected from the throttle body and pulled to the front.
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Old Apr 15, 2004 | 10:59 PM
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Default Re: Can someone Measure... (Steel Blue 91)

Steel blue.

Thanks for the help! I will check mine and see what I turn up!

:cheers:

PS: I wasn't braggin, I was actually being modest, as if I told the truth no-one would have got me the measurement :jester


[Modified by ski_dwn_it, 11:00 PM 4/15/2004]
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