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car lagging in WOT?!?!

J

johnnydrama816

New member
Hey hows it going! New to the site and a recently done some mods to my 2000 GTP. So far I have put on the smaller belt, a 3.6 mps, 1.9 rockers, CAI, zzp 1.0 pcm, speed daddy headers, 105 valve springs and mod retainers. Nothing crazy at this point. My question is, and forgive me if this is a "noob" question, when I get after the car a bit and run it WOT. It will get up quick but seems like once it hits a certian rmp range maybe 5k? it seems to stall, lag a bit, then jumps right back into the power and continues like nothing has happened. My question is possibly is this because of my tune? Air/Fuel? maybe tranny? Im not exactly the most car savy person when it comes to trouble shooting. My only guess was what I had mentioned earlier. Any help would be great. I have heard (after I bought it, of course) zzp's 1.0 tune sucks. I was just curious if that was it or possibly something else. Like to thank anyone who responds. Just kind of starting this gtp mods and needing some advice! Thanks for the help
 


ok sorry took so long to reply, Im running autolite 104 plugs, the gap I am unsure of, The guy who put my parts on I would have to ask or pull one out and see. I have a interceptor areoforce gauge that is showing no KR. Plug wires looked to be on correctly. I do not have a wideband at the momment, but I am running 93 octance in it. I thought it could be the air fuel raito when you punch it, under normal daily driving it runs perfect. It also under about 80% throttle will run out just fine, its when I step into it all the way that eventually it will get a sputter a bit then go. I just am at a loss. I think a tune might be able to help it but just unsure.
 
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