Originally Posted by 90GTNovi2000
Well it's a 306 stock crank, h beam rods, DSS girdle kit, high volume oil pump, Arp bolts throughout, Trw .030 pistons total seal top piston ring. Clevite rings and bearings also, FMS B303 camshaft, double roller timing chain, AFR 165 heads with gt40 upper and lower ported to match felpro 1290 gasket polished and flow tested by Redman Racing, 42lb injectors stock fuel pressure I believe.. 1.6rr's, Mac headers O/R x pipe w/ pypes violators.. That's the engine mod list.. Also had a question the guy I bought it from said it had a chip with 3 custom tunes on it. I haven't tried to find it yet but I'm sure it's near the ECU but should I try the other tunes?
The "chip" will be plugged into your ECU, which is under the passenger side kick panel.
Not knowing what the tunes are I would be very careful trying them.
How does it switch tunes?
Do you have a handheld or dash mounted switch?
The best course of action would be to find out who tuned it and see if they have on record a description of each tune and what it is for.
Boost pressure loss can be attributed to several different things.
2. Leaks in the pressure side of the system, tubing, connections, intake gaskets, etc..
3. Safety Bypass valve leaking.
4. SC damage or wear.
5. Pressure Gauge inaccuracies or leaks.