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Discussion Starter #1
I just noticed that every now and again in between gears my car just completely losses power between gears but runs fine other wise, any ideas what it could be maybe a bad chip?
 

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Are you just lightly crusing around when this happens, or are you really getting on it? I have had that happen when I give it some pedal and pop second hard.
 

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Valve float cause that to happen, I had same problem and after I upgrade to 120lb valve springs I no longer have that lag problem after shifting .
 

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Discussion Starter #6
[Q
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UOTE=2002mustanggt;10631682]Valve float cause that to happen, I had same problem and after I upgrade to 120lb valve springs I no longer have that lag problem after shifting .[/QUOTE]

I think you might be right im.going to try shifting at a little lower rpm and see if that helps
 

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yeah at lower rpm there is not much pressure in exhaust valve but at wot and high boost your valve float cause the lag, Trust me been there done that . Valve springs will fix your problem.

Lower your boost to 5 psi and go wot it wont have much lag , test it out. Anything after 10 psi you will have lag problem .
 

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Thats the dreaded turbo lag in a 5 speed. You blow off all of your boost in between gears, thats why an automatic is king in a turbo car. Shift faster and try and powershift it, thats the only way you are going to stay in boost.
 

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Discussion Starter #10
Thats the dreaded turbo lag in a 5 speed. You blow off all of your boost in between gears, thats why an automatic is king in a turbo car. Shift faster and try and powershift it, thats the only way you are going to stay in boost.
I shift hard but i can't power shift 2nd cause it locks me out, i might be getting a c4 before to long i can't decide
 
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