pressure ratio scaling

Predator support for Dodge gas vehicles

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rmcr
Posts: 42
Joined: Thu Jun 04, 2009 3:09 pm

pressure ratio scaling

Post by rmcr »

2009 dodge challenger tune from diablo i am using is: 68004308ag

the pressure ratio only goes to 1.0 in this tune.

what all would be necessary is raising it to 1.5? as I have seen in a dodge 300 tune that is: 04896600al

is it just a matter of re scaling all the axis that are related to PR? is there a way to go about with without having to retune the entire maps?

car is supercharged with vortech 9 lbs. and a little more resolution would be desireable since it gets to 1.0 PR pretty easily

thanks
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mikel
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Re: pressure ratio scaling

Post by mikel »

yes, you can right click in the x/y axis and select show normalizers to edit them. You'll need to remap the tables once you do so.

Thanks
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

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msmechanical
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Joined: Thu Oct 29, 2009 5:49 pm

Re: pressure ratio scaling

Post by msmechanical »

Mikel what are the rules for altering these axis?
i only ask because i have had idling issues once i changed them ,,
but now i only alter the top half of the pratio axis, and never any lower than say .7,, have had better luck this way , i never touch the rpm scales.

are there rules if you change one normalizer in say WOT spark , do you have go through and ensure ALL spark tables are the same axis values?

i ask this question because again , i have had issues where part throttle spark and min spark were different and massive idle hunting was evident,

cheers
manny :)
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mikel
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Re: pressure ratio scaling

Post by mikel »

thats a better question for Johan or Brian, id post it in the CMR dodge tuning section...
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

[email protected]
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