im shifting @ 6300 on 1st and 2nd... on my denali.. do u guys think i should raise it up.. not trying to hijack the thread lol.. a friend of mine made 295 on LT's intake and tune on a MD which is a heart breaker i think there is 10-15 hp like u said that u could squeez out of there..

 

where does your HP/TQ stop pulling rpm wise? thats where you set the shift points.

i have to disagree about the 3:42s im clicking 2.0 60's and Cody is 13.8s with 3:42s

 

i have just about the same setup ,, i have a tsp 220 , 3.42 gear , no converter , and full bolt ons , and my truck runs pretty good ,, i still have about 25% TM and my truck is a rocket from a 30 roll , i shift at 6,500 1/2 and 6,500 2-3 and rev limiter is at 6,700 im running a 275/60/17 tire ,

my truck was on dyno ,, and before i snapped the d shaft it supposedley put down 383. but ... you need to get that sorted out ,,, also no Dod Delete i have stock lifters ..

 

i dunno what you tuner did but hmm it must be poo

 

That really astounds me that you're able to consistently run high rpm on those lifters...either we're all way too cautious, or you have GM's best built DOD lifters

You changed PRs right? I thought I remembered reading you did..

 

yeah something sounds wrong here. who's tuning it? Futral?

im in watson, and would like to check the truck out and see what it's doing.

 

yeah bought em from txsilverado 7.400 thunder racing ,

MY MOTOR WAS BUILT ON A WENSDAY ,, AND EVERYONE KNOWS THE BEST MOTORS ARE BUILT FROM TUESDAY TILL THURSDAY

 

I really need to make a sig to clarify my setup but here it is in a nut shell: 08 cc 5.3/4l60e tr220-112,dod delete,LTs,ORY,CAI,3200ish 278mm,3.42s,poomaster super 44, EPS tuneGeoff Skinner at Engine Power Systems did the tune, Im not too educated when it comes to all thats involved with this so I didnt really know what to ask for as far as adjustments. I have a copy of the dyno results but need to download software from Winpep to view it.I asked TR about the longer 7.425 pr's and they said comp changed the base circle on the 220.I wonder if my slomaster is robbing some hps that I should be seeing????

 

If Geoff tuned it, it should be good to go. But that surging is a sign the tune is off, usually running to lean of a mixture is when it surges.

 

werd, ive heard good things about geoff of eps