434josh Posted October 22, 2018 Report Share Posted October 22, 2018 So I took my car to the track today - 1/8 mile drag race. First time out with a new turbo but I did have some street time on it. 1st pass right at 6400 rpm, 1st gear it fell on its face like ignition cut then it recovered and I shifted to 2nd, at 6400 rpm again same thing so I backed off a bit to about 80% throttle and finished the pass. 7.0 at 91 mph. Looked at the pc log and I hit 235 kpa at both instances of it cutting out. I though "oh that must by my set map limit" because I usually have everything set for 15-17 psi. Dial the WD duty down a smidge and run a pass at 10 psi without issues. 6.9 @ 102 mph. Ran 3 more passes at 13 psi without issue - 6.75 at 107. I got home and looked at my map limit and its 240 kpa, not 235. Is it likely it hit early or is it more likely I had an e-throttle issue? I am using a GM LS7 gold blade TB that some have said gives issues with higher boost but I have been at 17 psi for a while now. Will the ecu store that as a code if it cut throttle due to tps vs aps disagreement? Would it have recovered that quickly? I thought it would limit the rpm until a key cycle. I may up the boost cut to 245 kpa to see if that fixes things or if it still happens at 235 kpa. I did another log without saving that first one so I don't have it to upload unfortunately. Link Extreme ecu in case that matters. Quote Link to comment Share on other sites More sharing options...
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