Engine/Transmission (1998.5 - 2002) VP44 slowly dying???

[WHuss]

Is it possible for the VP44 to slowly get weaker and not show any codes or have any dead peddle is issues?

 

[DCreed]

yep, it wont be long now!

 

[SNiebaum]

sure is...

 

[WHuss]

The reason I ask is when I dyno the truck stock the #'s are fine. With everything in my sig I can only get 105hp out of it. Everything else checks out OK. The VP getting weak was the only other thing I could think of.

 

[DCreed]

how are you running it? the smarty AND adrenaline both add timing.

 

[WHuss]

I tried with and without smarty. When I tried with both, Smarty was on 2 and it helped some(13hp).

 

[Graphic man]

your truck is a HO... . HO trucks won't see the gains that the SO trucks will



if your going to go with a new VP i'd look at a SO pump



Scott

 

[SNiebaum]

your truck is a HO... . HO trucks won't see the gains that the SO trucks will

Scott

bingo... but I'd add they don't see the gains from electronics but will see a bit more from injectors up to around 150hp... the H. O. pump is a bit limited in the ultimate volume department.

 

[WHuss]

I'll agree about HO's not responding the best to electronics. I could live with 140-150hp gains but I only gained 73hp with the adrenaline by it self. Something can't be right or am I way off base?



What's involved in changing from a HO to a SO pump besides the pump?

 

[JPulliam]

Just swap the pumps. Some Mach 4's would wake 'er up!