New Gears.... now what???
I posted another thread on swapping my 3.23 gears for 4.10 on my RWD 2005 GMC Sierra 1500 with the 5.3L and 4 speed auto (4L60e). I took the truck in this morning and picked it up about 2 hours ago...
Forum Discussion
roadjunkie wrote:dodge guy wrote:
Custom tunes take over where the manuf. left off. And some left a lot on the table. A good tune will use that left over power and use it safely.
I'm very happy with my custom tunes for my X. If not for anything other than he improved shift strategy! Of course the extra 20HP and TQ is nice when needed.
We think alike. ;)
The improved shift strategy comes from tow haul mode. You refuse to talk about how that works with ya with 4 10's
Like it was said its your truck. throw all the money at it you want..
The people here are stating what they, as myself are, because we know you will not see performance that they advertise. heck 10-15 hp is the same as turning your air condition off. Putting hi test in will net you similar power.
What we are saying is you went from 3 23 rear to 4 10. If you dont see higher RPM and pulling power with that alone then your chasing a ghost.
Making more HP with built motors as you posted below is a good thing but dont overlook what you may do to the trans. Line pressure drops 100 psi or so when the TC locks. Thats not good for higher HP motors. Especially the 4l60E.
Im an old wrencher from back in the day and im all for advancing the timing. Running hi test we would turn the dist to advance just till the car started pinging under WOT.. Then we re-tard a hair and were good to go.
But we were kids back then and in 1988 my silverado had a 350 @ 120 HP
IDK let us know how it turns out. I just dont think those tuners are worth 400 bucks.
As well as the cold air intakes.
It looks cool is all and it sells.. Its a marketing thing..
