Knock & timing retard at high RPM (Vortech)
Knock & timing retard at high RPM (Vortech)
So I went to get a few runs today after fixing my belt slip issue. It looks as though my UTEC is sensing a bit of knock after 5.5k rpm and pulling timing which kills power. I'm not sure if it was just a bad batch of gas, but I only hit like 345whp. My tuner said supercharged cars tend to sense false knock or something. Anyone have input on this? He should be emailing me the graphs soon, so I'll post those up.
need to know the type of mods u have and which pulley set u have and the type of dyno it was on. Also, the graph will be nice too 
When I first installed the vortech on my car it only made 355whp with the 3.12 pulley and most of the bolt-ons except cams with a rich tune. So your numbers seem right if the timing was pulled or a pretty conservative tune.
When I first installed the vortech on my car it only made 355whp with the 3.12 pulley and most of the bolt-ons except cams with a rich tune. So your numbers seem right if the timing was pulled or a pretty conservative tune.
Vortech w/ 3.12 pulley
Skunk2 plenum
Berk high flow cats
Top Speed Y-pipe
Fujitsubo exhaust
RC 440 Injectors
Walbro Fuel pump
stock cams
I'm going to swap out my plugs this week. Also fix this slight exhaust leak I have since installing the cats last week. The leak, while very minimal, might trigger false knock count from what I've been told.
Skunk2 plenum
Berk high flow cats
Top Speed Y-pipe
Fujitsubo exhaust
RC 440 Injectors
Walbro Fuel pump
stock cams
I'm going to swap out my plugs this week. Also fix this slight exhaust leak I have since installing the cats last week. The leak, while very minimal, might trigger false knock count from what I've been told.
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