KB440

Quick question, I bumped the timing about 1/8". I don't know if it has every been bumped before or not but I didn't see any gains at all. I don't have a tach but my boost has dropped 10 psi, it feels as if I took the 3200 spring out. I'm back to 16 psi of boost instead of 25 psi and EGT's didn't change at all. Does this sound like I have it too far or just coinencidence and something else happed at the same time. I'll put it back this weekend and see. I figured I'd get your thoughts on it.

Cowboy_Customs

I was going to ask if u returned it to its previous position. Which direction did u move the IP? Something is seriously off. I suggest u return your timing to its previous position and go from there.

pokeypennell

Not to highjack this thread, but you turn the pump toward the engine correct??

wannadiesel

Sounds like you went too far - or forgot to hook the AFC line up.

Trucks with large turbine housings are not happy with lots of timing. Do you still have the 21 cm on there?

KB440

I pushed the IP towards the head, the PO may have bumped it too. The AFC line is OK, and I have a 18 cm on the WH1C. I think it's too far also, I'll put it back Saurday and let you guys know how it is.