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-   -   Smoke/Performance (https://www.dieselbombers.com/1st-generation-dodge-cummins-89-93/137-smoke-performance.html)

2001shrtbedcummins 03-16-2007 08:48 PM

Smoke/Performance
 
Okay guys...new truck what can I do real cheap...like free...:q:

92 D/UNIT 03-16-2007 09:59 PM

the free stuff is the best. id start with gauges before any pump mods are performed. then grind the fuel pin and move the star wheel down all the way and bring it back a turn.
fuel screw in a couple turns and advance the timing an 1/8 of an inch
here is a good link to help you out. http://dodgeram.org/tech/dsl/more_power/Power_ve.htm

then when your bored with that and have some money to spend a BHAF and a compressor upgrade are fairly reasonable i purchased a stage 3 compressor and housing from gillett deisel for 180.00 + shipping.

injectors would be good to get the benifits of the comp upgrade.

here are some fuel pin pics for you
http://i124.photobucket.com/albums/p...elpinstock.jpg
http://i124.photobucket.com/albums/p...6405ground.jpg

hope this helps you out some:)

2001shrtbedcummins 03-16-2007 10:13 PM

wow man that's takin a lot of the pin...:hd:

92 D/UNIT 03-16-2007 10:27 PM

oh i forgot the thing that will really make a difference in performance, a 3200 rpm governor spring you can pick one up at your local inj shop for under 20.00
here is a link on how to install one.
http://dens-site.net/Dodge_CTD/Governor_Spring/

cajun 93 03-17-2007 09:13 AM

pump adjustments and 3200 spring will make so much difference for $20 you won't believe it. only problem is then your hooked and the money gets bigger from then on. still, i've got about 1500 in improvements and can't believe how it tows and runs.

cajun 93 03-17-2007 09:26 AM

just seeing if my sig works now.

yep, it does. this has been a test of the emergency horsepower network, in event of an actual emergency, a large cloud of smoke will appear.

wminmi 03-19-2007 07:27 PM

these "tips" work on an '89 as well? Fairly easy to accomplish these in an afternoon?

Out of curiosity, how bad is MPG effected?

Begle1 03-19-2007 11:57 PM

Everything's the same for an '89.


As long as you're soft on the fuel pedal the mileage won't be affected. Until you learn to be soft, you'll probably be washing 1-2 mpg off of the rear of your bed.

92 D/UNIT 03-20-2007 06:44 PM

mpg will be better, if can keep your foot out of it :dm: you could do it in a day if your pretty good with a wrench and have everything to do it, but i would just do a little at a time as you get an understanding of what the mods do.

nubee89cummins 08-25-2007 12:49 PM

the problem with the 89 is that your boost will go to 35 or more. i know b/c thats how i blew my head gasket. all i did was one half turn for the power screw. i am working on gettin a intercooler made for my truck to bring boost down

Begle1 08-29-2007 12:23 PM

My truck can just barreeelllyyy max my 35 PSI boost gauge. My truck with a stock torque convertor would make less boost; my truck with a manual would make more boost but I don't know if anybody could wait long enough for the turbo to spool that much before shifting.

My fuel pin is still stock, however... A tight driveline with a maxxed fuel screw and a chopped fuel pin probably could get up to 40, and anything over 35 is in danger of popping the headgasket. Although, the majority of headgaskets are fine at 40 PSI, and that was considered the max safety level for the stockers for a long time until a few started failing at 35PSI over the past couple years... I think that the stocker headgaskets around the country are getting weaker now that they're 14-18 years old...

I'm still running stock intake and exhaust too... A BHAF and 4-inch downpipe would reduce boost a bit.

Another thing is that, without an intercooler, your EGT's are going to prevent you from running 35 PSI + for very long. An intercooler will reduce boost, but the reduction in EGT's is the really nice part.

And there are a lot more economical options for intercooling than getting a finned model custom made.


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