> Turbo & maybe the manifold i can buy second-hand,
I think many D16 manifolds will be for a T3 flange.
Edelbrock would be one the few choices with a T25.
> Boost should also compliment the Y4s longer gearing.
I think the slightly shorter VTi Y5/Y8 gearbox plus a LSD should be at the top of the list.
> NGK iridium plugs
Save some cash. Go for the NGK copper plugs.
> i may need a new resonator & cat
Salvage one from a late model, performance oriented wreck.
Bound to be some smashed up v8 commodores about.
> T25G from S13 SR20
Fair choice.
T28 wouldn't go wrong either.
> its going for a service some time this week,
If you gonna boost it soon, why service it now?
> as i plan to keep AC & PS
c'mon, harden up.
1) Look for other posts on here or d-series.org about shimming the oil pump.
2) A morosso series 2 oil accumulator is cheap insurance.
3) If your ignition system is still original, it's probably a good idea for a new dizzy. No need for an upgrade, it's just an item which needs replacing and it'd be a good time.
> i already have a cannon muffler,
&
> hence the reason for a 2.5" dump pipe, much easier for the exhaust guys to fab up a 2.5" with not alot of room, than a 3".
With a good, straight through, rear muffler, and low boost, the stock, cat back, exhaust pipe should be an ok compromise.
A 2.0in pipe will flow 280cfm, which is just shy of your goals (150Hp = 330cfm). You just need to make sure the muffler itself isn't the choke point.
What's the inside pipe diameter of the cannon?
Nick.
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