Setting base idle rpm in tunerpro
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Joined: Feb 2005
Posts: 617
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From: Rochester,NY
Car: 1993 Caprice wagon "Shammoo"
Engine: tpi'd 406, with P4 ebl EBL 730 ECM
Transmission: custom "4L65" swap.
Axle/Gears: 3.42:1 with posi
Setting base idle rpm in tunerpro
So the beast is finally running, thanks to many people here at this forum.
I'd thought I saw an entry for setting target idle speed in Tunerpro RT, but I'll be damned if I can find it now!
My engine seems much happier idling at 800rpm, (230/236 cam), but wasnts to drop off to 600. I want to raise my target idle speed to 800, but can't find the appropriate area in constants/scalars or tables/functions.
I'm using a speed density system $8d mask, using an XDF of 8D_SAUJP_V4a.
I'm sure this is an easy one for you guys.
I'd thought I saw an entry for setting target idle speed in Tunerpro RT, but I'll be damned if I can find it now!
My engine seems much happier idling at 800rpm, (230/236 cam), but wasnts to drop off to 600. I want to raise my target idle speed to 800, but can't find the appropriate area in constants/scalars or tables/functions.
I'm using a speed density system $8d mask, using an XDF of 8D_SAUJP_V4a.
I'm sure this is an easy one for you guys.
Joined: Mar 2006
Posts: 4,370
Likes: 19
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: Setting base idle rpm in tunerpro
To find defined items in the xdf you can use Ctrl+f to open the item finder and type in a keyword such as "idle", click search or enter and then there will be a list that comes up with the search word(s) in the name.
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Joined: Jun 2004
Posts: 157
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Car: 93 GMC Typhoon
Engine: 4.3L V6 Turbo Charged
Transmission: 4L80e
Re: Setting base idle rpm in tunerpro
Just an FYI, if there is an Idle vs Battery Volts, it will override Idle vs Coolant Drive and Idle vs Coolant Park/N if your mask has those in it also.
Joined: Apr 2004
Posts: 3,180
Likes: 3
From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Re: Setting base idle rpm in tunerpro
There is a hard coded value that can be changed using the XDF but only for stock bins. There are two places this must be changed with the same value if you do it.
The addresses are ONLY for AUJP.
If using another $8D you will need to investigate the actual locations of the two items.
Pattern match the area around the locations and see where it is in your bin.
Hex editor is the easiest way to do that.
The V4 bin has it made into a variable that can easily changed. Default is 1000 RPM.
Last edited by JP86SS; Jul 20, 2009 at 10:15 PM. Reason: AUJP only
Joined: Mar 2006
Posts: 4,370
Likes: 19
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: Setting base idle rpm in tunerpro
Unless you are using the S_AUJP bin the idle is max at 600 RPM.
There is a hard coded value that can be changed using the XDF but only for stock bins. There are two places this must be changed with the same value if you do it.
The addresses are ONLY for AUJP.
If using another $8D you will need to investigate the actual locations of the two items.
Pattern match the area around the locations and see where it is in your bin.
Hex editor is the easiest way to do that.
The V4 bin has it made into a variable that can easily changed. Default is 1000 RPM.
There is a hard coded value that can be changed using the XDF but only for stock bins. There are two places this must be changed with the same value if you do it.
The addresses are ONLY for AUJP.
If using another $8D you will need to investigate the actual locations of the two items.
Pattern match the area around the locations and see where it is in your bin.
Hex editor is the easiest way to do that.
The V4 bin has it made into a variable that can easily changed. Default is 1000 RPM.
If S_AUJPv4 is different, what is this called in S_AUJP? I am using S_AUJPv4 1026 in a friends truck, and this might help explain some oddities at idle.
Joined: Apr 2004
Posts: 3,180
Likes: 3
From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Re: Setting base idle rpm in tunerpro
V4 has the idle limit changed so that over 600 can be commanded (at idle)
Search for "Idle Limiter" and you'll see the entry in the XDF.
Use the one labeled "V4 Only".
There is also a listing to change the stock bin if you were running it instead of V4.
The stock bin clips it off at 600 even if your table is set higher.
Ajust the closed throttle idle RPM Vs. Coolant at address 632 as stated above and you'll be able to get 800 RPM.
The "Idle" condition has several parameters.
TPS% must be less than ****
MPH must be less than ***
etc.
Search for "Idle Limiter" and you'll see the entry in the XDF.
Use the one labeled "V4 Only".
There is also a listing to change the stock bin if you were running it instead of V4.
The stock bin clips it off at 600 even if your table is set higher.
Ajust the closed throttle idle RPM Vs. Coolant at address 632 as stated above and you'll be able to get 800 RPM.
The "Idle" condition has several parameters.
TPS% must be less than ****
MPH must be less than ***
etc.
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