Turbine Doc
Just Another Diesel Guy
Tim writ:
Is there actually a specific tune for the HX? Sorry if I missed that tid bit. I know ATT has a specific tune.
Right now I run the Heath GL4 tune and know that there is more potential in the tune for the HX. Honestly I was just thinking about getting the ATT tune which would be close IMO.
Also to add. I run the stock HX with the 20 PSI valve, no problems at about 15K. But I drive easy, very rarely over 14PSI. And when towing I just regulate by left foot for Pyro and Boost.
I'm headed to Orlando next week with the trailer, so I should bring back some good MPG numbers when towing on the HX.
AFIK there are some tunes for the OBD-I HXs, I do not believe Bill has done any tweaking for the HX it was like pulling teeth to get him to tweak for the ATT, as far as the ATT being close to the HX if the "unbiased tester" is to be believed, apparently the tune is not close enough the HX tune used would not spool the ATT properly but works for the HX