Originally Posted by SuperHatch
A couple more MPGs over the box stock TS tunes? That's impressive!
My auto trans shifts well, but firm as it is. I'm pretty much set on switching to a Manual if the trans takes a dump. It was the only thing I really wanted that I didn't get with this truck.
Thanks for the feedback, once I get a chance to check the fuel pressure I'll see if it's needed. I'll wait on the IDM mod until I see how it drives with the mods that are on their way... the exhaust got delivered yesterday
Thanks! The truck is on stock size tires right now, so at 55MPH it's spinning 1800RPM and at 65 its 2200ish.
Some more questions...
EBV... I can feel it kicking in and out until the truck comes up to temp. I know this is normal. If the truck comes up to temp, then idles for a few minutes, the EBV starts kicking in again to get the temp back up. Is this normal? Do I possibly have a sticking thermostat? It was cold today, but not THAT cold. My temps generally stay at the "N" in normal or lower.
Also, is the manual worth any economy over the Auto? It seems like the auto likes to lock the converter pretty quick, which would help economy.
Wow very nice
No I meant that say on stock rubber with 4.10s at 65 mph you are probably spinning something like 2500ish rpm whereas with 3.55s on stock rubber at 65 mph you would be at something like 2100ish rpm. That 400-500 rpm difference is HUGE and will burn way more fuel. So if you slow down to 55 you will be back around 2000 rpm with your 4.10s and see much better fuel economy than you will at 65 mph.
Yeah your EBPV will come and off when sitting and idling in cooler temps. So long as it kicks off and stays off once you get going and warmed up it's fine. Lots of us have them wired to a switch so we can control when it comes on plus it makes a poor man's exhaust brake with a manual trans. Can get the same effect with an auto trans if you wire a TC lock switch.