Engine/Transmission (1998.5 - 2002) HP with 275 and PE EZ

[M Evan]

Hi, I know lot of you had truck tested on dyno, did somebody know how many RWHP will combination 275 injectors, PE EZ and KN inside the OEM box make ? What gain in HP, if any, will 4" exhaust add to this combinations ? Thanks

M

 

[fj40charles]

Can't comment on the HP with 275's and EZ since I've never run that combo. However, when I had DD1's and an EZ, I made 275 HP in 6th gear or 283 HP in 5th gear.



The real benefit of 4" exhaust will be quicker spool up, a 2 lb PSI increase in the boost, and lower EGT, but no noticible HP benefit.



Charles

 

[Fuzz]

May Madness this year,courtesy of Diesel Dynamics,my truck

with EZ,275's and the BHAF,everything elses stock,dynoed

296HP.

It is a 2000,3500,4x4,truck weighs 8400#'s(if that matters).

 

[lkuykendall]

Fuzz, what did your torque numbers look like?

Is your truck an auto or manual?

I'm just trying to get a rough est. of my hp and tq.



Thanks



Len

 

[M Evan]

Thanks so far. Yes, torque numbers will be interesting too, if somebody have them.

M

 

[Irontrader]

With just a EZ and 275 injectors I got 288 rwhp last year at the BD dyno days. That's with a 5spd.

 

[Fuzz]

They weren't getting torque #'s on the read out,at this particular run. I asked and they computed 600ft. lbs.

The truck is a 6speed,3:54 rear end.

 

[WadePatton]

The 4" will make it SOUND 30HP better.



Get rid of that stock airbox! $45 will get you the most air/dollar efficient filter around. And just cut the muffler out of the 3" exhaust--until you get closer to 350HP and are having EGT troubles.