[bcriss]

Ive tried adjusting trans shift points and ive hit the rev limiter a couple times !!! Even if i just set em @ 2mph above baseline !! Why would this be ?
Not shure what the intended area for these shift points is supposed to be,(part throttlre or full throttle) cause it doesn't say !! but mine will hit rev limit if I set it @ 2mph and above.. any help will be aprreciated.. thanks.

[bcriss]

4got to mention... 07 f150 4.6 2wd w/ gryphon cs.....

[Longshot270]

So the cs is saying that it is hitting the rev limiter at regular driving and not WOT? You could probably raise the rev limiter a little bit. What is that set at?

[JackandJanet]

I think Longshot is as puzzled (confused?) by what you're saying as I am!

First, there are TWO kinds of shift points: "Part Throttle" shifts and Wide Open Throttle (WOT) shifts. The part throttle ones are the ones that can be raised or lowered by only a small amount (maybe +/-2 at 1-2, +/-3 at 2-3, and +/-5 at 3-4. These shifts should happen well below any maximum RPM setting you have, and they will not effect the rev limit.

I have not looked in my CTS for the Rev Limit (max RPM) setting yet. And, I'm not finding anything on this in the CS/CTS manual. But, for the older Gryphon, you got to this setting by saying "yes" to "Create a Custom Program?". This would open the "Custom Options Menu".

One of the choices in that menu was the Rev Limit. Another was WOT shift points. If you are hitting the Rev Limit, it is likely that the WOT shift points are set too high, or that the Rev Limit is too low. These are values that I found worked well for me on the old Gryphon:

1-2 Shift: 4900
2-3 Shift: 4900
3-4 Shift: 4400
Rev Limit: 5400

You need to have shift points at least 400 RPM below the Rev Limit and the 3-4 upshift needs even more.

You really don't want any shift much above 5000, because the torque and HP are dropping there, and, at 5400 rpm, your Torque Converter starts to balloon, so I would not set the Rev Limit above 5600 in any case.

I really want to drive my truck some with the "default" tune settings applied, so that's why I haven't messed with custom options yet.

See if this advice applies to the CS menu. If not, let us know and I'll see what I can find out.

- Jack

[cleatus12r]

Bill talked to bcriss a bit yesterday. I'm hoping the issue has been resolved.

[Longshot270]

Luckily the rev limiter is one of the settings that shows the value(ex. 5600 rpm) instead of a value shift (ex. +6) so we will be able to find out pretty quick either way.