Partial-throttle tuning with uberdata?
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
Just a general question regarding Uberdata.
Is it possible to tune partial-throttle with Uberdata 1.70? I searched and couldn't find any info. on how to tune partial throttle.
Is it possible to tune partial-throttle with Uberdata 1.70? I searched and couldn't find any info. on how to tune partial throttle.
When you look at the map you see all the regions the ECU does fueling + ignition for... WOT is more to the right, how far along to the right depends on how much boost you're running and throttle %
As you move left you move through lighter and lighter throttle. But remember that as the engine revs it ingests more air, so 25% throttle at 1500 rpm might be 3"/Hg, but at 5000 rpm it might be 12"/Hg because the engine is working that much harder against the restriction. So throttle % mapped on the chart is not a flat line moving left->right, it's a curve along the map.
For N/A, 100% throttle is 0.3"/Hg or the equivalent on your map, and 24"/Hg is coastdown or very very very light throttle.
As you move left you move through lighter and lighter throttle. But remember that as the engine revs it ingests more air, so 25% throttle at 1500 rpm might be 3"/Hg, but at 5000 rpm it might be 12"/Hg because the engine is working that much harder against the restriction. So throttle % mapped on the chart is not a flat line moving left->right, it's a curve along the map.For N/A, 100% throttle is 0.3"/Hg or the equivalent on your map, and 24"/Hg is coastdown or very very very light throttle.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostincoupe »</TD></TR><TR><TD CLASS="quote">Just a general question regarding Uberdata.
Is it possible to tune partial-throttle with Uberdata 1.70? I searched and couldn't find any info. on how to tune partial throttle.
</TD></TR></TABLE>
Yes. Tuning partial throttle with Uberdata is no different than any other program. You can do street tuning or you can go to a load based dyno (ie non Dynojet).
Is it possible to tune partial-throttle with Uberdata 1.70? I searched and couldn't find any info. on how to tune partial throttle.
</TD></TR></TABLE>Yes. Tuning partial throttle with Uberdata is no different than any other program. You can do street tuning or you can go to a load based dyno (ie non Dynojet).
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 »</TD></TR><TR><TD CLASS="quote">bigwig says uberdata is like a dynojet.. only WOT tuning is allowed.</TD></TR></TABLE>
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">It's very possible, I am tuned for partial throttle and get low to mid 30's for mpg and the car runs very smooth.</TD></TR></TABLE>
Trending Topics
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 »</TD></TR><TR><TD CLASS="quote">bigwig says uberdata is like a dynojet.. only WOT tuning is allowed.</TD></TR></TABLE>
bigwig would say that cause he is probably too lazy to do it.
bigwig would say that cause he is probably too lazy to do it.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">It's very possible.</TD></TR></TABLE>
Sure is. I get like 32mpg here. Just make very smooth adjustments over a broad area not, one cell at a time. keep it simple.
Phil
Sure is. I get like 32mpg here. Just make very smooth adjustments over a broad area not, one cell at a time. keep it simple.
Phil
I dont think part throtle is that hard, just time consuming!!!! Idle I think is the hardest with Uberdata running big injectors. Damn thing wont stay steady no matter what I do. When I think I got it at 14.7ish then drive it around, it drops to like 16ish. then drive again, goes back to 14ish.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD »</TD></TR><TR><TD CLASS="quote">It's very possible, I am tuned for partial throttle and get low to mid 30's for mpg and the car runs very smooth.</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 »</TD></TR><TR><TD CLASS="quote">
</TD></TR></TABLE>
Let me guess..............You tuned that car huh.
Phil
</TD></TR></TABLE>Let me guess..............You tuned that car huh.
Phil
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crucian »</TD></TR><TR><TD CLASS="quote">I dont think part throtle is that hard, just time consuming!!!! Idle I think is the hardest with Uberdata running big injectors. Damn thing wont stay steady no matter what I do. When I think I got it at 14.7ish then drive it around, it drops to like 16ish. then drive again, goes back to 14ish. </TD></TR></TABLE>
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes.
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes.
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
Is the map you gave me tuned for partial-throttle?
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
Is the map you gave me tuned for partial-throttle?
Yes it is. I'm not sure if i gave you the latest y8 map i did or not. Go on xeno's site and download my y8 .bin off there. Its called y8 with p2p timing maps or something like that.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaguyef »</TD></TR><TR><TD CLASS="quote">
Let me guess..............You tuned that car huh.
Phil</TD></TR></TABLE>
But anyway. The best way to tune part throttle without a doubt is with an ostrich and just driving around like you normally would do and do a little smoothing to the map.
Let me guess..............You tuned that car huh.
Phil</TD></TR></TABLE>
But anyway. The best way to tune part throttle without a doubt is with an ostrich and just driving around like you normally would do and do a little smoothing to the map.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
yea my 550's (not that big but still decent sized) idle best in the mid 13's.
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
yea my 550's (not that big but still decent sized) idle best in the mid 13's.
i've tuned a few cars at partial throttle on the dynojet with no problems. i tuned my car on both the dyno and the street and have about the same a/f at part throttle and WOT. i dont see any problem tuning part throttle on a dyno
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
This is all good info, people. Keep it coming. 
SOHC_MShue, the tune I downloaded was "my final tune with P2P timing".
Is that the one you're referring to, that's tuned for partial throttle?

SOHC_MShue, the tune I downloaded was "my final tune with P2P timing".
Is that the one you're referring to, that's tuned for partial throttle?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostincoupe »</TD></TR><TR><TD CLASS="quote">This is all good info, people. Keep it coming. 
SOHC_MShue, the tune I downloaded was "my final tune with P2P timing".
Is that the one you're referring to, that's tuned for partial throttle?
</TD></TR></TABLE>
that should be the one i believe. All of my uber boost files are tuned for part throttle in open loop though.

SOHC_MShue, the tune I downloaded was "my final tune with P2P timing".
Is that the one you're referring to, that's tuned for partial throttle?
</TD></TR></TABLE>that should be the one i believe. All of my uber boost files are tuned for part throttle in open loop though.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
You're right, it seems to hold idle better in the 13 AFRs than 14s. I think I'll just try to keep it in the 13s and see what happens. Another thinkg is that the car runs like **** it in closed loop. Sometimes won't even hold idle, or idles funky!
You probably need to idle them richer. I had this problem on a recent car i tuned...it would do the same exact thing as yours. Idling it around low 13's afr kept the idle nice and steady and the afr's no longer fluctuated. Big injectors are funky sometimes. </TD></TR></TABLE>
You're right, it seems to hold idle better in the 13 AFRs than 14s. I think I'll just try to keep it in the 13s and see what happens. Another thinkg is that the car runs like **** it in closed loop. Sometimes won't even hold idle, or idles funky!
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 7,942
Likes: 0
From: Destroying turbo ITR motors in Minneapolis, MN, U.S.A.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">that should be the one i believe. All of my uber boost files are tuned for part throttle in open loop though.
</TD></TR></TABLE>
<---- h3lla confused on the difference between open and closed loop. I just want my car to run smooth and be fast!
</TD></TR></TABLE><---- h3lla confused on the difference between open and closed loop. I just want my car to run smooth and be fast!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crucian »</TD></TR><TR><TD CLASS="quote">You're right, it seems to hold idle better in the 13 AFRs than 14s. I think I'll just try to keep it in the 13s and see what happens. Another thinkg is that the car runs like **** it in closed loop. Sometimes won't even hold idle, or idles funky!</TD></TR></TABLE>
yea this is why i stay away from closed loop, but i think some of the new uberdata scripts may adress that issue.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostincoupe »</TD></TR><TR><TD CLASS="quote"><---- h3lla confused on the difference between open and closed loop. I just want my car to run smooth and be fast! </TD></TR></TABLE>
Closed loop is where the ecu makes fuel adjustments based on info from your o2 sensor when you are cruising around to keep you at a constant 14.7:1 afr. In open loop your car just runs off of the fuel maps that you have made.
yea this is why i stay away from closed loop, but i think some of the new uberdata scripts may adress that issue.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostincoupe »</TD></TR><TR><TD CLASS="quote"><---- h3lla confused on the difference between open and closed loop. I just want my car to run smooth and be fast! </TD></TR></TABLE>
Closed loop is where the ecu makes fuel adjustments based on info from your o2 sensor when you are cruising around to keep you at a constant 14.7:1 afr. In open loop your car just runs off of the fuel maps that you have made.



