I would guess the heath 2.0 or kennedy's but I'm not aware of anyone putting them to the test against each other back to back in the same engine on a dyno.


I'm about ready for an upgrade and i'd like to know.Edited by: quantum mechanic

 

9465,


Until you go WMI or IC you have the hottest chip you can run with and still be safe

 

WMI-IC ????????

 

not sure what that means, but id guess it has to do with overheating. most people iv talked to seemed to think id be ok with a chip as long as im not gonna be doing a lot of long hard pulling. even now when the truck is pullin a pretty good load i cant say that the temps ever got over 210, i know the chip will make all the temps go up, but the way i see it that what all those tachs and guages are for, to show u when its bein pushed to far so you can let off of it. if i c that things are gonna run to hot all the time i guess ill just see if theyll give me 300 bucks back. if it stays at a safe temp while normal drivin i can always put the old one back in when im gonna be pulling stuff

 

WMI: Water Mist Injection


IC: Inter-Cooler

 

I tryed both B. Heath's and Kennedy's back to back almost four years ago and they are both very good. I kept JK's only because I felt his shifted slightly better @ WOT. I'm not running an intercooler but I can keep up with just about anything on the road.


I would love to dyno this before I blow it up or sell it but there isn't to many places near me that I've found yet.

 

charlie p,


do your temps stay fairly low without the intercooler

 

The best way to keep the temps in check is to open up the exhaust. I dropped 100* and picked up 3lbs of boost this way.


70mph in lockup I'm running at 500*. When I hammer it or climb a long hill, sure the temps go up. I'm reading pre turbo. I strictly drive by the pyro. I'm light and don't tow.

 

when people are talkin about temps and gettin hot, they aint talkin about the coolant temp, they are talking about exhaust gas temps. your coolant temp in your dash aint gonna show how hot the heads and turbo are gettin.

 

That's exactly why you need a pyrometer.

 

what is to high for the egt's???

 

1050 degrees F for post turbo, 1250 degrees F for pre turbo


(this is according to kennedys website)

 

That's a bit conservative (1050), but better be on the safe side.

Pistons <span style="font-weight: bold;">will </span>melt at 1450F, so go from there.

 

9465


You gotta crawl before you can walk, until you fit the gages, improve airflow, stay with stock PCM programming, 3.5" exhaust will be better than 3" if you are wanting to max out your setup. Are you planning to tow, Diesels arent really race machines if that is what this quest for power to the max is about, for that I'd recommend a gasser, hell my 90 4.3L V-6 will wax my Diesel, it ain't stock either, but if I blow it up it's a whole lot cheaper to rebuild than the Diesel.


But the 4.3 won't pull my GN trailer loaded to 16K, you can build a race Diesel but it isn't going to last, met a guy at a dyno meet that was dragging Diesels for fun had gobs of power but only, gets 1-2 seasons out of the engine.

 

Your pistons may melt at 1450 but they are more likely to crack before then. Aluminum becomes very brittle when near it's melting point. 18 or 19:1 and an intercooler is the only way to back the heat off the soft aluminium pistons and still make enough power to justify calling it a work truck. I had so much fun replacing one piston, I'm going to do all eight with the lower c/r pistons next time an engine's coming out.

 

how long did it take to install the one?

 

im not wantin to race any body, im just wantin a little more power for normal drivin and towin, when you say improve airflow do u mean like an intercooler or a high flow filter. and i guess i shoulda went with the 3" exhaust but this was just put on a few weeks ago, everybody at the shop thought the 3" would be enough for the 6.5. not make any comparisons but dodge comes stock with 3"

 

Two days start to finish. In retrospect I could have pulled the engine swapped all eight with 18:1 c/r and done it for a only few hundred more than I spent and a little more work. Edited by: quantum mechanic