How much power should this make??

[TommyZ]

I am in the middle of a turbo build in my 78 280z And I am dieing to know how much more or less it will make..

 

Engine: L28/F54 Refreshed but all stock.

Head : P90 Refreshed ,Felpro head gasket,ARP head studs stock cam, mached ported to intake manifold

Intake manifold: N42 heavy proting 240sx TB

Turbo: T70/ T3 .63 rear applied technology wastegate 38mm

Fuel: bosh turbo pump, 550cc injectors, topend performance fuel rail,-6 fuel lines

Engine man:Haltech F9 fuel computer

Ignition: n/a dizzy with all the tricks/ Msd 6al/ 8mm wires

exhaust:Full 3in magnaflow muffler

Trans: 1983 280ZX Turbo T5 ,competition 3 puck clutch

Rear End : R200 3:54

 

I plan to run arround 18-20 psi tuned by the best..

is 350hp @ the wheels possible????????????

[woldson]

Don't know.

Are you going with flat tops?

[TommyZ]

I am running stock l28et dish pistons..

[ShaggyZ]

I can't say, but I can tell you that you could see at least a 100 peak HP variance simply based on the tune. You could put a bad tune on it and make 250HP at the flywheel and then get it tuned professionally and see over 350HP.

[cygnusx1]

Built well, it will be strong enough physically to make 400+ if it's not pinging. It's really about the tune, and the head flow between 300 and 400hp. Tuned by the best....yes 350+ to be expected. That clutch is going to be a PITA on the streets. Consider going with a 240mm 400ft-lb street disc if you are going to street it alot.