LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Help me please !!!!!

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Old Feb 11, 2009 | 05:09 PM
  #21  
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Thanks sprayed lt1 if the new one dosent work i will slot it. just pray it works for me lol
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Old Feb 11, 2009 | 07:24 PM
  #22  
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I swear people don't read all of what I say First I said it was for 94+ Electronic transmissions, then I said to oblong out the bolt holes to make it adjustable lol

I HATE YOU ALL
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Old Feb 11, 2009 | 07:36 PM
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Take the advice of slotting the TPS. I have installed 3 Holleys and ran into the same problem. Airflow does NOT dictate when the transmission shifts - it's what the PCM sees as voltage from the TPS.
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Old Feb 11, 2009 | 07:37 PM
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Originally Posted by RamAir95TA
Take the advice of slotting the TPS. I have installed 3 Holleys and ran into the same problem. Airflow does NOT dictate when the transmission shifts - it's what the PCM sees as voltage from the TPS.
Airflow indirectly does, again people don't read my posts Here, dumb version: Bigger hole, more air. More air, less throttle. Less throttle, less TPS voltage. Less TPS voltage, sooner shift/less line pressure. Capiche?
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Old Feb 11, 2009 | 07:45 PM
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Originally Posted by Formula350
Airflow indirectly does, again people don't read my posts Here, dumb version: Bigger hole, more air. More air, less throttle. Less throttle, less TPS voltage. Less TPS voltage, sooner shift/less line pressure. Capiche?

couldnt you just take out the whole entire nonesense about the air and make it even easier. lol
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Old Feb 11, 2009 | 07:47 PM
  #26  
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Originally Posted by 1slo_camaro
couldnt you just take out the whole entire nonesense about the air and make it even easier. lol
Hmm....

OK How's this...

Bigger = Less which is confusing not only to you, but the PCM!

(originally it was just going to be "Bigger = Less" heh)
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Old Feb 11, 2009 | 07:52 PM
  #27  
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Before slotting the holes, you should put a volt meter on the TPS and verify proper voltage. You'll have to do this even after slotting it to get it adjusted properly.

To check reference signal, put the positive probe onto the gray wire and the negative on the black ground. With the key on/engine off (ko/eo) you should get 5 volts.

To check signal voltage, put the positive probe on the dark blue wire, and leave the neg on black. I can't recall exactly what voltage range you shoud see, but I think it should be between .45-.70. At WOT you should see between 4.5-5.
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Old Feb 11, 2009 | 07:55 PM
  #28  
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Originally Posted by SprayedLT1
I can't recall exactly what voltage range you shoud see, but I think it should be between .45-.70. At WOT you should see between 4.5-5.
Of all the GMs I've been looking at, .54-.68 closed and 4-4.5v WOT. I've not ran across one that's over 4.6v WOT
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Old Feb 11, 2009 | 07:59 PM
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Originally Posted by Elliott's94Z
I'm gonna have to disagree with ya on this one because I have ran 2 different T.B's on my A4 (52mm and a 58mm) w/o a tune with no issues and no codes being thrown. Something else must be acting up w/ his set up.

+2. I have a 52mm with no tune with no issues and no codes being thrown, but I have a BBK

Last edited by onephatZ28; Feb 11, 2009 at 08:06 PM.
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Old Feb 11, 2009 | 08:00 PM
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Originally Posted by Formula350
Hmm....

OK How's this...

Bigger = Less which is confusing not only to you, but the PCM!

(originally it was just going to be "Bigger = Less" heh)


calm down there high speed!!!!! just put your helmet back on and sit in the back of the bus it will be ok no need to get all crazy and personal and ****!!!!
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Old Feb 11, 2009 | 08:01 PM
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Originally Posted by Formula350
Of all the GMs I've been looking at, .54-.68 closed and 4-4.5v WOT. I've not ran across one that's over 4.6v WOT
Thanks dude. Like I said I couldn't remember without referencing the manual.
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Old Feb 11, 2009 | 08:05 PM
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Thanks everyone
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Old Feb 11, 2009 | 08:06 PM
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Originally Posted by 1slo_camaro
calm down there high speed!!!!! just put your helmet back on and sit in the back of the bus it will be ok no need to get all crazy and personal and ****!!!!
You clearly didn't pickup on the fact that I what I said was completely in jest :\ Tis just my sense of humor I guess, very rarely do motorheads get my jokes with out my explaining it. Not the case with my fellow hobbyists (computers). The personal bit was a complete joke at first, and then 2 threads in a row the one guy did the exact same thing of not reading my post thoroughly and saying something, well not to be mean but, relatively dumb.

Here, I'll go watch some TV and stop back in around Midnight

Exit, stage left!
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Old Feb 11, 2009 | 08:15 PM
  #34  
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i like it when u ad in the heh cuz your from minesota heh? any ways whasnt the holley the one that had built in ports for no2? i thought i saw that somewhere?heh? haha
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Old Feb 11, 2009 | 09:23 PM
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Originally Posted by Formula350
You clearly didn't pickup on the fact that I what I said was completely in jest :\ Tis just my sense of humor I guess, very rarely do motorheads get my jokes with out my explaining it. Not the case with my fellow hobbyists (computers). The personal bit was a complete joke at first, and then 2 threads in a row the one guy did the exact same thing of not reading my post thoroughly and saying something, well not to be mean but, relatively dumb.

Here, I'll go watch some TV and stop back in around Midnight

Exit, stage left!


lol damn i was just jokin!!! LOL
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Old Feb 11, 2009 | 10:40 PM
  #36  
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My 94 did the same thing I got my dremel out and slotted the holes and bam she is all good now. I see what he means about the more air flow say at about 1/4 throttle with a 58mm flows about the same as a factory 48mm at 1/2. Ok maybe not that much but anyways you get the idea.
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Old Feb 11, 2009 | 10:53 PM
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yeah im gonna try and slot it
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Old Feb 14, 2009 | 10:20 AM
  #38  
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Thanks guys i slotted it and it worked with my stock tb but could not get the holley tb to act right so it has the stock one on and back to normal. Thanks everyone
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Old Feb 14, 2009 | 10:31 AM
  #39  
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Originally Posted by RamAir95TA
Take the advice of slotting the TPS. I have installed 3 Holleys and ran into the same problem. Airflow does NOT dictate when the transmission shifts - it's what the PCM sees as voltage from the TPS.
vacuum does dictate it
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Old Feb 14, 2009 | 01:48 PM
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Originally Posted by redbird93
i like it when u ad in the heh cuz your from minesota heh? any ways whasnt the holley the one that had built in ports for no2? i thought i saw that somewhere?heh? haha
No, it's because I've been on the net since 94 I chat very often and 'heh' is just a way to express the tone you're speaking in. Similar to using emotes. The net is not easy to convey ones emotions due to the lack of hearing the tone of voice, so you can't always tell if someone is annoyed, mad or just being sarcastic Also, 'heh' is short for "hehe", which is more of a chuckle compared to "haha' being more of a laugh.

Anyways, that's all for todays course of Internet Chatting 101..... heh


Thanks guys i slotted it and it worked with my stock tb but could not get the holley tb to act right so it has the stock one on and back to normal. Thanks everyone
You most likely (if you haven't) need to drill out the IAC. What exactly is drilled, I'm unsure as I've not had to do that with my BBK
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