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

52mm TPiS throttle body issues

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Old Dec 12, 2019 | 10:51 PM
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Default 52mm TPiS throttle body issues

1996 Vette, LT-4

Has anyone else had problems getting the TB to both reach 100% open and also return to idle? No matter what I've tried, I can only have one or another, not both.

There were no instructions, their phones are not working and no response to emails since Tuesday.

I can't really find anything online about adjusting the cable other than one single return about, "press the button". Then what?

I have manually adjusted the length and tried both cable options on the TB linkage. Im at a loss and supposed to be racing Saturday....

I don't want to have to put the stock TB back on but it's looking that way....
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Old Dec 12, 2019 | 11:26 PM
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Which model do you have? They have one that fits 85-88 and so on
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Old Dec 13, 2019 | 01:46 AM
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Originally Posted by aklim
Which model do you have? They have one that fits 85-88 and so on
It's supposed to be the correct one for my 96...
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Old Dec 13, 2019 | 08:36 AM
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Originally Posted by lt4 coupe
1996 Vette, LT-4

There were no instructions, their phones are not working and no response to emails since Tuesday.

.
No surprise there. I don't see them being around much longer..
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Old Dec 13, 2019 | 11:04 AM
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Originally Posted by TommyFox
No surprise there. I don't see them being around much longer..
Why is that?

I only went with theirs because it was the most highly recommended!
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Old Dec 13, 2019 | 12:54 PM
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Originally Posted by lt4 coupe
Why is that?

I only went with theirs because it was the most highly recommended!
i did a lot of research before buying one and finally ended up choosing a Holley 58mm
Couldn't be happier, after 10 years of use!
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Old Dec 13, 2019 | 01:31 PM
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Originally Posted by Calderone
i did a lot of research before buying one and finally ended up choosing a Holley 58mm
Couldn't be happier, after 10 years of use!
I had both Accell and Holley. Not sure if I noticed anything different
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Old Dec 13, 2019 | 05:42 PM
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Originally Posted by lt4 coupe
Why is that?

I only went with theirs because it was the most highly recommended!
Poor customer service. They don't answer e-mails.
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Old Dec 13, 2019 | 08:56 PM
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I read too many negative reviews on the Holley.

They have returned my calls and emails. The delay was due to their internet being down. Which isn't uncommon in their neck of the woods...
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Old Dec 13, 2019 | 11:02 PM
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It's on the way back. They asked for pics and decided it looked like the throttle cam was clocked incorrectly.

Track day tomorrow, stock throttle body it is...
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