i really appreciate the help ive been up all night trying to figure out how to change to the custom os
i really appreciate the help ive been up all night trying to figure out how to change to the custom os
The 2004 factory calibration will work just fine. I have done several and NEVER been able to out run the MAF table. GM's GMPX built several trucks and they did not use a COS.
Are EFILive's COS speed density calibrations?
EFILive COS may be operated jut like an OEM OS - MAF only, SD only, or blended (OEM style). While you could run the OEM OS in MAF only mode (as long as you don't exceed the airflow limits), a well tuned SD configuration (or blended configuration) will yield a "sharper" tune, with better throttle response.
The HPT 2 bars are SD calibrations. SD calibration lack a lot. It would take me hours to explain everything that the MAF is a function of
Good to here the EFILive COS use MAF's. The 2004 MAF limit is 12,000 hz. The most I got out of a Maggie was 11,250 and the Whipple almost 11,700. The Whipple truck was spun past the RPM range
I just ran a C6 with a Lingenfelter E force supercharger yesterday. I pulled the data-log up and found that it maxed out at as low as 4800 in 1st and the rest of the gears about 6000, I ran it to 6800 with it maxed out. I never thought that would have happened on this car.
Trying to answer the OP's questions about a COS ... not interested in a Coke vs Pepsi debate regarding SD vs MAF tunes. You will find very knowledge people will that will line up on either side of that fence. I work with mainly E38 / E67 these days ... a lot of folks seem to want an A6 in their dream car.
MAF tunes are prevalent for several reasons - they are quick and easy (meaning they cost less), they require less knowledge / experience on the part of the person doing the tune, and only EFILive has these (E38 / E67) VE or VVE tables native within the tuning software.
Having driven and tuned a lot of these, the SD tunes (or SD and MAF combined) always seem a little crisper during rapid throttle transitions, than do the MAF only tunes - but perhaps this is merely my person bias.
i installed the new custom os and tune what do i need to do to get it started now
The MAP and Injector data in that tune are wrong for your setup. I set it for a 2bar MAP---You still have a 1bar. The injector data in that tune is not stock. Your injectors are stock. You need a 2 bar MAP and either input your stock injector information in it or wait and install your new injectors and input the data from them. The COS3 I posted was not intended to run your engine in its present state.
Jeff
98 GMC RCSB, 5.0, 4L80e, Moser M60, 4.10 gear, Homemade twin turbo w/Junkyard T3 turbos, 24x CNP, 12200411 PCM.
ok i should get my map and injectors next week do you know what injectors it was set for
Good lord man, do you speak just to hear the sound of your own voice ?
Of course I read his original post - that is why I chose to participate in this thread. Without a COS and a 2 bar MAP sensor, the only tuning option available is MAF only - eliminating SD and blended MAF & SD (OEM style) as options. Better to have three tuning options rather than just one.
Bookmarks