What did you find???

With just a change of 5 year old plugs to fresh new plugs while still strapped to the Dyno I saw it make a 20 HP gain on a wheel dyno...

I think your very first run was kinda low as far as numbers go. I believe a big part of that was the lack of matenance.

 

dyno'd straight from the purchaser. I think the number where a little low, but that is what they where. You can never have a perfect dyno day, that just what they where at that time.
Pulled the plugs last night all seem to be fine, wrong ones but fine. The banging in the exhaust makes me think its fueling or ignition issues. Today I will getting some new plugs, wires, and checking the codes. Light came on while dynoing so it throu a code, probably tranny that been the normally one, but I will look today.

 

Wouldn't make more power with 70mm turbo than the 62mm??

 

lol yep

 

Sure, but this is a standard kit on the truck. Larger turbo @ same psi is moving alot more air.

 

wrong plugs... Who put them in??? Or did you never change them???

 

I think they were the plugs that came in the truck.

 

Yeppers, sure were, stockers not sure how old or how long they have been there. Must have forgot to change them out. Oh well no biggie,
Did a compression check all cylinders are fine. I think we have an altenator problem, not suppling enough voltage/amps to keep all things happy.

 

Well atleast you know that the engine is fine.
Unless the heads are lifting under boost.

 

Gonna test again after swaping them out and fixing the alt issue???