well, changed it to running 91.... the exhaust actually sounds throatier if that is possible.....

 

ok, so I noticed that my speedometer is still off... its about 5 mph off @ 40 mph..... so if my speedometer says 40 mph, I am going 45 mph via gps. at this speed, my rpms are around 1450.

I am not savvy enough with the tuner, so how do I get this to work now? Also, I noticed I can firm up the grans shift points by percentage? it is currently @ 0% should I increase it?

 

Change the tire revolutions per mile. You need to lower your current setting about 10% or so, then use trial and error. If you don't know your current setting, look up the revs per mile for your tire size, start there. If the speedo reads low (like yours does now), lower it, if it reads high, raise it.

I'd leave the trans parameters alone till you get the custom tunes, then discuss it with 5Star.

 

I actually haven't had a chance to get the custom tunes done yet. This is all just using the stock canned tuning that the unit allows.

I still need to put my intake on, and do some other stuff, like have some time.... I work @ Tesla, and we are working like crazy pumping out cars

 

Check my post again, I was editing it when you posted.

 

Okay, I cranked your numbers into a gear ratio calculator - at 45 mph, 1450 rpm, in OD with the torque converter locked up, tire diameter calculates to 33.3". This is around 625 revs per mile. Start there, correct as necessary till the speedo reads about 1 or 2 mph high. (60 on GPS, 61 or 62 on speedo)

This also assumes that you have the correct gear ratio programmed, I used 4.56.

 

sweet thanks. I do have 4.56 programmed in

 

so, just programmed it, is the 2mph on the speedo over for 60mph only? or am I aiming for 2mph speedo vs gps at all speeds?

 

It's going to vary - 2 mph at 60 is the best place to be.

 

So, I put it in today. It is currently spot on at all mph under 50 mph. I didn't have a chance to go any faster today.

I am putting an intake in, and have had problems all day. Broke my upper radiator nipple too! Ugh, I have a fix idea though, hope it works.

 

If it's spot on under 50, that's close enough.

 

cool, sounds liek I am going to leave it then.......

if I get pulled over, I will jsut use the excuse that I was going the speed limit based on my speedometer the larger than stock tires must be @ fault