bigragu

I know the spec for engine in D w/ AC on w/ automatic is 750 rpm's; my question is do any of you prefer to go higher, and if so, what and why? Are your rpm's adjusted for high HP mods?

carl20320

I was always happy with mine right in the 750-800 range. WHen I had my pump turned way up, I actually had a difficult time getting it down to anything lower than 750RPM.

Carl

wannadiesel

I like 850 RPM with a a manual trans, but automatics pull too hard at that RPM.

The proper idle spec for an automatic is 700 RPM, not 750.

timb

I keep mine at 800 rpm. It does pull a little hard when stopped, but that's what neutral is for.

bigragu

Yeah, I was curious because 700-750 is proper, but once I got used to 850, I can't go back. I just turned the power screw in 1 more turn and that raised my idle to 975, and that was starting to get uncomfortable on the right knee trying to keep the truck from creeping at a stop!

flyingd

Hey Wanna

Is that 700 in Park or Drive

gman07

That would be in drive with the A/C on.

I don't have a tach, but I'm pretty sure mine is around 800. I always pop it into neutral when coming to a stop anyway.

Rampage1967

I run mine at 600 - 630 in Drive.

BRUISER

where is everyone's RPM's on your Tachs at 65 MPH???

Ace

I'm turning 2200 rpm at 65 in top gear. But I think my speedo is reading a couple mph high. I went by one of those rodaside radar warning signs the other day and it said I was doing 43, but reading 45 on the clock. Anyone know how accurate those things are?

G1625S

I've got stock tires and 3.54's. I wanna say I'm turning about 1900 at 65. I'll check tomorrow.

BRUISER

anyone else have what there RPM's are at at highway speeds??

also how hard is it to get your Tach to go above 2000RPM...
I just put on new autometer tach and it goes to 2000 and then to get it over that the engine sound sliek it is gonna blow..

just trying to dial mine in correct..

thanks

wannadiesel

When I installed my Autometer tach I had to play with the sensor position to get it to read at high RPM. That may be your problem.

I run 2100 @ 70.

pred

2300 at 82 mph says gps. and very smooth.

KAyers

I found that higher idles caused my trans to heat up way too much in stop and go traffic. Lowering the idle stopped the problem.