Losing boost under pull.

GNbythebay

Member
If I am doing a pull on the street the boost comes in nice and stays at 20 psi but after shifting to second the boost drops to 12-15 psi but than will shoot back up to 20 psi after a few seconds. What could be causing this problem?
 

notacarlo

eggs are liquid chicken
I know the car in stock trim drops boost through the gears (trying to find the article on the boost levels 1-4)
 

Mr.Spool

Well-Known Member
If I am doing a pull on the street the boost comes in nice and stays at 20 psi but after shifting to second the boost drops to 12-15 psi but than will shoot back up to 20 psi after a few seconds. What could be causing this problem?
hd wastegate?
 

TurboTnZ06

Go on red!
Log your fuel pressure. I bet its just falling off, fuel pump restriction/vent/filter/pump not up to the task, hole in the hose that connects the pump to the hangar.

If you are on pump 93 gas only, you're gonna blow the engine. Pull the boost back to 16 at most, and try again.
 
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