H1C 60mm compressor housing and wheel upgrade.

[spencerdiesel]

The star wheel shouldn't have much (if any) effect on peak boost. It can improve spool though

[Cole92w250]

So I should really turn my max fuel screw and change the idle. Do this while the truck is runnin?

[spencerdiesel]

Yes sir. Take the inlet hose off of the turbo and have a buddy on standby with a flat board or piece of steel.

If you're like me, you won't just want to get all you can the first time you adjust it. Theres also probably a collar on the screw that you'll need to remove if you want more. Mine went in 2/3 of a turn before the collar stopped it. I'd turn it to the collar and try it, it was worth about 10-15 hp for me

[Cole92w250]

no collar on mine. It was easy I only did 1 turn and used a punch to unscrew and lock the idle nut. Hitting 25psi now might do another turn half. Try peak 35.

[spencerdiesel]

Feel a little better? What are your EGTs

[Cole92w250]

Im hitting 31psi max. trying figure out my max torque. Whats your EGTS? I dont have a egt gauge yet on order

[spencerdiesel]

Ive got a stock h1c/18, fuel pin, 366, and 2/3 turn on the screw. Shifting @ 2800, a WOT run from 0-80 peaks at 1250. If I take it to 90 mph EGT can get to 1300-1325 depending on air temp. There are variables of course between your rig and mine.

Long story short, you could safely run WOT in your rig for 10-15 sec without worrying (before getting the pyro). I say 15 sec because that is a lot of peoples personally imposed timeframe when above 1250, and your still not running a ton of fuel. But without a pyro we still dont know.

Above 1250, it is ENTIRELY about time. For example: If I peaked @ 1300 degrees, I'd feel comfortable holding 1300 for 30 seconds or so. If you were pegging a 1600 deg. pyro, then no I wouldn't hold it there for 30 seconds

Just to clarify, ALL of the timeframes I posted are ballparks/estimates, and carry no real weight. It is unknown how long 1300, 1350, 1500, or even 1800 degrees can be sustained before junk starts sloughing off your pistons. And EGT damage is generally cumulative, meaning unless you actually meltdown, damage will occur over time bit by bit.

[Cole92w250]

What type of egt gauge do you have? spencer

[spencerdiesel]

ISSPRO, I think it's supposed to be the easiest to read in their lineup or something.