2.70 Metco swap

[Ronson87]

Hey guys, I've been searching the forums so I didn't have to post something thats probably already been posted.

I just put a 2.70 Metco on my stock eaton and tuned it. I seem to be running lean at high rpm and loosing boost as well, which obviously go hand and hand. My question is do I need an aftermarket MAF, bigger injectors or is my tune just bad? :??: Any help would be great, Thanks guys.

 

[Ronson87]

Any help?

 

[Riddick]

Check your datalogs and see what your fuel pump duty cycle is, I believe 1 is max. Simply multiply the value by 100 to see what percent your pumps are working at. Also check your MAF counts from your log. I would guess your stock MAF is maxed but I have read of stock pumps maxing out with just upper pulleys as well. Good luck

 

[whitedevil95]

Check your datalogs and see what your fuel pump duty cycle is, I believe 1 is max. Simply multiply the value by 100 to see what percent your pumps are working at. Also check your MAF counts from your log. I would guess your stock MAF is maxed but I have read of stock pumps maxing out with just upper pulleys as well. Good luck

I would be MAF sensor pegged. I had to get a MAFia during my tune because of it maxing out my MAF.

 

[Ronson87]

Thanks guys, I'll check that out.