Originally Posted by
stevieturbo
So exactly what boost is it making, when does it surge, how much boost when it surges etc etc ?
And why vernier pulleys on std cams ? Are you sure cam timing is correct ?
What ecu are you using ? Cant it control boost ?
Bigger turbine housing may help...or so might a more restrictive intake before the turbo.
Although even a ported front cover doesnt mean there is no chance of surge, although it should help.
Shouldnt cost that much for a ported cover ?
Original cams are not timed perfectly for their capabilitys on std pulleys, bought them for a later camshaft upgrade. They are currently set to std configuration though.
Using L6 ecu so no boost controller.
Hits surge at about 3700rpm, hard to say exactly because of the surge making the MAP signal go wild but about 1.7bar when it stalls.
I think I will get the head ported and fit a 0.82 housing on it, leaving compressor cover as is.
Thanks guys
