LTFT Question

Rnhall · Post by **Rnhall** » Sun Jul 03, 2011 7:01 am

I keep reading that when checking LTFT's you should be in the 2000 RPM range and I've also read you should be check LTFT's at cruise.
At 75 MPH my Vette is turning 1700 RPM's. So is it best to check LTFT's st cruise or drop down two gears and chack at 2000 RPM's?
Ralph

CANUCKPREDATOR · Post by **CANUCKPREDATOR** » Sun Jul 03, 2011 10:38 am

yeah cruise at 2000ish, what ever gear it takes. Or cruise at 2000 and knock some cobwebs out of the car

Post by **06MonteSS** » Sun Jul 03, 2011 11:14 am

you want to be at 1800 ideally... 2000 at the most...

so drop down a gear....

Rnhall · Post by **Rnhall** » Sun Jul 10, 2011 8:16 pm

What would you expect to see when looking at the LTFT's at say 1600 RPM's Vs. 2000 RPM's?

Rally2SS · Post by **Rally2SS** » Sun Jul 10, 2011 8:48 pm

Rnhall wrote:What would you expect to see when looking at the LTFT's at say 1600 RPM's Vs. 2000 RPM's?

UNusable information as far as DSlogRedux is concerned...!?

Grumpy_Aero_Guy · Post by **Grumpy_Aero_Guy** » Mon Jul 11, 2011 8:09 am

yeah, dslogredux allows you to choose an rpm range that corresponds, as best possible, to your cruise RPMS --- 1800 to 2200 rpm in various increments thereof.

1600 is too low. Drop a gear and do around 2000 if you can.

Jruss · Post by **Jruss** » Thu Jul 14, 2011 9:30 am

I'm in the same boat. If I'm in 6th gear with my Corvette I would have to cruise at 82 MPH to show 1800 RPM's
Florida Highway patrol doesn't think kindly of this!

Rally2SS · Post by **Rally2SS** » Thu Jul 14, 2011 10:53 am

Feelin' a bit under-geared, here...70 @ 1800

Post by **06MonteSS** » Thu Jul 14, 2011 10:54 am

like we've been saying - don't do it in 6th gear! drop down a gear...

Jruss · Post by **Jruss** » Thu Jul 14, 2011 6:31 pm

Rally2SS wrote:Feelin' a bit under-geared, here...70 @ 1800

That is because I'm running with a 2:56 rear drive differential.

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