seahawkdodge

Alright, I searched and found some information, but not exactly an answer.
The truck in my sig is my DD and tow rig.
Right now, I have good response, and a buttload of power up to 2800rpm...then the EGT spikes and power drops off instantly.

I am toying with the idea of either a 35/40 hybrid, or maybe a 40.
In the meantime, what would a 16cm housing do to my torque curve? I have an airaid intake, 4" turbo back exhaust, #11 plate and 370 injectors.

I was also thinking about going to a 10 plate and 3K gov springs, but I'm not sure. I guess I'm addicted to the power

infidel

I tried a 16 on my tow rig for a while, didn't like the slow spool up, went with a 14

Fueling around

A 14 cm housing works very nice with a 35/40 hybrid, too.

Your 370 injectors and plans for a #10 and GSK probably means a 16 cm housing is a better choice. 370's on your bigger pump help with the lag and the bigger housing helps when you get the rpms up.

seahawkdodge

One of my concerns is that I can peg my 35 psi boost gauge (40 psi at the peg?) as soon as I romp the throttle accelerating in third. 1200° is pretty quickly seen, and EGT hit 1400 on the third dyno run.

After thinking about it, I don't think a 16cm housing will help all that much, seeing as I'm already out of the turbo's map.

I don't plan on more than 400hp, but I would like to clean up the exhaust a bit.

What turbo would be the best bang for the buck? I've been looking at the Dodgezilla with a 14cm housing, as I can find one of those for about $750

I'm also going to have the timing bumped up to around 15°-16° soon.

John Faughn

I am looking into a new turbo[ 4"outlet] along with trans. e-brake ,4" exhaust ,then about your power level , the 1st thing I though after looking at your ? was that I came to looking at same turbo , but in your sig. no timing , go there before more parts , it seems like you've got the ability to flow and fuel but not the timing yet , and then the 3-4gsk also. Thats another thing about these sites when you want to build a truck you've got more than your own to expairament with.

seahawkdodge

After some more playing, I realized that my EGT numbers are actually lower than I thought.

At 30psi, my EGT is around 750°-800°. With the needle buried, It peaks around 850°-900°.
I don't know why I thought it was higher... Maybe I don't need a new turbo after all?!?!

I'm a bit confused now

Timing is next on the list, 15°-16° advanced.

Fueling around

Is your pyro probe before or after the turbo?
Your first temps indicated pre-turbo. Now, when you state 900° that is usually a post turbo temp.

seahawkdodge

The temps are pre turbo.
The highest I remember seeing temps was about 1200...but that was on a steep grade and I was playing with it.
Then there was the 1400 on the dyno, but that was at 3100 rpm in top gear.

Still confused here.

TRCM

you saw what mine did.....40 psi & 1500 deg on the dyno.....

With your injecotrs, I'd expect about the same egt & boost as mine, but yer lower.....hmmmm.......must be that #11 plate.