POTZ tb getting stuck at WOT...Advice
10-13-2014, 12:32 PM
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POTZ tb getting stuck at WOT...Advice Hi guys,
So I sent out my stock tb (01 z28) to POTZ back in April to get ported and the works. Since I put it back on the car, I have put about 800 miles on it and my throttle has gotten stuck about 4 times (gas pedal stuck to the floor). The first two times I almost crashed. Needless to say what can be causing this?
I've done some research and its not my floor mats, I took them out after the first time just to be sure. And the car and tb has just 78k on it, and from owning it since 2008 it has never once got stuck at WOT like this before so I doubt it is the cable. Like I said, it just started doing this once I put the ported tb back on.
I am not trying to talk bad about POTZ, the tb looks great and I really like it. I just want to see what some of you have done to fix this issue because I am at a loss.
Thank you in advance for your input/help.
So I sent out my stock tb (01 z28) to POTZ back in April to get ported and the works. Since I put it back on the car, I have put about 800 miles on it and my throttle has gotten stuck about 4 times (gas pedal stuck to the floor). The first two times I almost crashed. Needless to say what can be causing this?
I've done some research and its not my floor mats, I took them out after the first time just to be sure. And the car and tb has just 78k on it, and from owning it since 2008 it has never once got stuck at WOT like this before so I doubt it is the cable. Like I said, it just started doing this once I put the ported tb back on.
I am not trying to talk bad about POTZ, the tb looks great and I really like it. I just want to see what some of you have done to fix this issue because I am at a loss.
Thank you in advance for your input/help.
10-13-2014, 02:12 PM
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Might check the blade wide-open bump stop, and that
this does not allow the blade to travel over dead center.
If it does, airflow might defeat the return spring. If this
behavior only happens at driving WOT, and no sign of
it key-off (no airflow), this is a likely culprit.
this does not allow the blade to travel over dead center.
If it does, airflow might defeat the return spring. If this
behavior only happens at driving WOT, and no sign of
it key-off (no airflow), this is a likely culprit.
10-13-2014, 02:17 PM
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Might check the blade wide-open bump stop, and that
this does not allow the blade to travel over dead center.
If it does, airflow might defeat the return spring. If this
behavior only happens at driving WOT, and no sign of
it key-off (no airflow), this is a likely culprit.
this does not allow the blade to travel over dead center.
If it does, airflow might defeat the return spring. If this
behavior only happens at driving WOT, and no sign of
it key-off (no airflow), this is a likely culprit.
All four times it has happened I was either WOT or 75% + throttle. It has never happened with me just driving the car "normally".
10-13-2014, 03:23 PM
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Is it possible to recreate the airflow or pressure the air puts on the blade when parked to see if this might be it? I have no idea if maybe a leave blower for instance might help to simulate this? Also not sure if you can damage anything?
Also happened to other brands of cars.
http://60degreev6.com/forum/showthre...B-Stuck-in-WOT
http://www.dfwmustangs.net/forums/sh....php?p=1299496
https://www.google.nl/webhp?sourceid...uck%20in%20wot
Also happened to other brands of cars.
http://60degreev6.com/forum/showthre...B-Stuck-in-WOT
http://www.dfwmustangs.net/forums/sh....php?p=1299496
https://www.google.nl/webhp?sourceid...uck%20in%20wot
Last edited by NL_SLI_GT; 10-13-2014 at 03:28 PM. Reason: added info
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10-20-2014, 11:34 AM
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So I have been talking with John at Potz and so far we are not sure what can be causing this. These are the pics I have sent him. It all looks good, I think??
I cannot get the blade to get caught up on anything when I try to replicate it. It feels smooth. I move it back and forth slowly, gradually, and then increasing the speed but there does not seem to be any issues. I don't know what to do.
I cannot get the blade to get caught up on anything when I try to replicate it. It feels smooth. I move it back and forth slowly, gradually, and then increasing the speed but there does not seem to be any issues. I don't know what to do.
10-20-2014, 12:51 PM
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Did you check to see if the throttle blade gets stuck without the cable connected? Could be a problem with the cable or your pedal. I know on mine if you lossen the throttle stop to far the blade will stick in the closed position but no problem with full throttle. I would disconnect cable and see if cable has any kind of catch disconnected from tb.
10-20-2014, 01:32 PM
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Did you check to see if the throttle blade gets stuck without the cable connected? Could be a problem with the cable or your pedal. I know on mine if you lossen the throttle stop to far the blade will stick in the closed position but no problem with full throttle. I would disconnect cable and see if cable has any kind of catch disconnected from tb.
10-21-2014, 08:07 AM
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I'm sure it's tough to eyeball but it might be going past 90* open. You can put some RTV or something on the throttle stop to limit it a little (basically undo what he milled off) and see if it still does it. If it does, it's something else. You need to use the process of elimination.