Engine/Transmission (1994 - 1998) Effects of turning "up" injector pump?

[gsmith1]

On a 1998 12V, what can be expected from turning up the injector pump in regards to increasing power? Will this have any negative effects on anything?



Thanks.





***NOTE*** I've moved this thread/question to the second gen 12v forum for better response...



Pastor Bob...

 

[SEmerson]

Depending on how much you turn it up and also how you may get high egts and smoke. But for the most part no negative affects.

 

[BV]

The harder you run it, the faster it will wear out. So if you take that 1/2 million mile engine and push it hard then you might only get 1/4 million out of it .



Seriously - I believe the above statement to be true for the most part however, if you have high HP and use it gently instead of all go and all stop, then you shouldn't loose much life at all.

 

[Cooker]

These motors are rated for much more HP in a larger application. Personally I do not think turning up the HP within reason, what's that right will affect the longevity of the pump at all.

 

[Joseph Donnelly]

My '97 has his pump turned up a little

I'd like to turn it up some more as he feels a little tired, even Sickly [his name to you newcomers] at only 799. 9 hp

 

[XcumminsX]

my buddy has a 1st gen... whats the easiest way to get the this screw... it seemed really hard and we couldnt do it... do you have to move all the linkages out of the way?

 

[A Johnson]

In regards to more HP hurting anything, just remember when Cummins sells physically identical engines, the higher horespower costs you more because it costs them more to warranty it.



What will a 98 12 valve take? I don't know, probably quite a bit.



Short list dependent on amount of fuel and abuse:

Cracked/siezed pistons, blown headgaskets,fried trannys.



A Johnson

 

[JJW_ND]

It is all about duty cycle!

If you pull heavy and hard things will wear out earlier on a truck that has the power turned up. But that is all relative.



If you run empty I doudt you would see any increased wear. Running down the road at 70 mph empty has the same wear on a 500hp motor as a 160hp motor. If you tow and can run 70 pretty easy loaded with a stock truck turning that truck up will add little increase wear. It is only when you are able to run at speeds never attainable with a stock truck and then the % of miles you use that exrta power. Nothing a few quality parts can not fix.



From what I have read and personally experienced, 250 - 300hp is pretty safe and conservative for even towing situations. 300 - 400 you get into clutchs, AT upgrades and lots more tire wear.



jjw

ND

 

[Forrest]

Yep, high EGTs for sure. One of our fellow senior bombers calculated me @ 586hp ... assuming I've got enough air to burn it all. Poor little HX40 is not up to the task & no twins ... yet. However, the upcoming J. R. HX55 hybrid should burn a little more.



Oh well, the rest just goes in the cowl of the tailgaters.

 

[Deezul1]

Dang tires wear the worst.

 

[gsmith1]

Thanks for info folks!!

 

[R.ebel]

Originally posted by gsmith1

On a 1998 12V, what can be expected from turning up the injector pump in regards to increasing power? Will this have any negative effects on anything?

The only negative effect will be on your wallet Be warned bombing is very, very addictive. On the plus side you will have a big **** eating grin on your face when you start to feel the POWER