Engine/Transmission (1998.5 - 2002) ?ECM Training??Fass System installed

[monkfarm]

I finally got the fass system installed (been sitting around in a box since last summer) The engine runs so smooth. It still smokes a little though (New recent bigger turbo also)

?Does it take a while for that engine computer to get used to the idea of a different fuel delivery and turbo? It's got plenty of power, but it probably should have more, and I'm getting pretty good belches of black smoke when I step on it at low R's.

 

[Oil Burner]

That is normal to smoke more on the low end with a bigger turbo. It will spool slower than your stock turbo. The advantage is on the top end where your bigger turbo will outflow the stocker. Less egts and smoke in the higher rpms.



Jason

 

[Beast2B]

Low boost smoke is the byproduct of bigger sticks and larger turbo. The ECM is not a 'learning' computer, it just takes voltage values and creates a fueling curve as far as power goes. I had to re-learn driving my truck with the turbo, injectors and box. Try driving/shifting to stay at 2000rpm or higher for awhile, keeps smoke down and power is almost instant. Unless I'm on the freeway, then it's 6th gear cruise control!

 

[monkfarm]

THANK'S FOR THE REPLY!!

I think I have to seal up my intercooler lines a little more. Maybe not as tight as they could be. (Just used the stock intercooler hosery coming off the turbo. )

I would rather not use the high rpm range (even though it does run good in the range you are talking about. )

Say, was that high angle cv rear shaft necessary with the 4. 5" lift?? Was that real expensive?? and where did you source those?? (If you don't mind telling me?) I want to put some 22. 5s on the dodge. (I get some real good deals on them cuz I have 3 big trucks. ) I've heard the u-joints wear out real quick if you lift your truck up.

 

[Beast2B]

I figure that the engine would not be ALLOWED to go to an RPM where it would be jeopardizing the motor. LOTS of these motors are spun up to 4k RPM regularly with no issues.

I ate two u-joints (first joint behind the carrier bearing) in 10k miles. CV joint is the only correct (IMHO) way to fix my issue, so I had a rear shaft built with carrier bearing in stock location so angle is stock from t/case to carrier. Rear diff is angled to keep the rear u-joint straight with the shaft. CV joint behind the carrier splits the angle and it's been great for 25k miles. I also had a NASTY vibration towing heavy on take-off, rear diff pinion angle climbing with power applied. Non-issue now.

I went with www.highangledriveline.com cause they build stout stuff for Crawlers and they are close. Any good driveshaft shop could do it. Check any off-road or 4wheeler magazine for specialty shops.

Speaking of your deals, I was contemplating changing my truck to a dually for towing and wanted 19. 5's or 22. 5's. Any deals for aluminum wheels? Adapters?

 

[Beast2B]

Oh, forgot to add it was $650 with shipping.

 

[darkhorse]

Hey Dean, nice to see ya in here. Thanks for the use of the generator last summer. I see from your sig. that you srpang for a CaTCHER. How's it working for you in that heavy truck?



Richard