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throttle % wide open stock vs tunes?

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throttle % wide open stock vs tunes?

 
Old 09-19-2016, 11:35 AM
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throttle % wide open stock vs tunes?

not sure if my dealer flashed my car back to stock and I don't have a hand held to retune but my throttle only goes to 87% when I go wot on my obd2 scan tool.

can anyone with a tune or stock car see if there's goes to 100% when going wot?

you can do this with any cell phone and obd2 apps and you can do it with car not running but connected to phone app
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Old 09-19-2016, 11:45 AM
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Originally Posted by skratch77 View Post
not sure if my dealer flashed my car back to stock and I don't have a hand held to retune but my throttle only goes to 87% when I go wot on my obd2 scan tool.

can anyone with a tune or stock car see if there's goes to 100% when going wot?

you can do this with any cell phone and obd2 apps and you can do it with car not running but connected to phone app
I doubt the dealer flashed your car back to stock. The only thing I can think of is that the obd2 app is not reading correctly.
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Old 09-19-2016, 12:07 PM
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Originally Posted by INS1GNIA View Post
I doubt the dealer flashed your car back to stock. The only thing I can think of is that the obd2 app is not reading correctly.
I tried a few apps and all are reporting 87% throttle flooring it.the dealer did a huge top end job and had the car for over a month

can you see if your car shows 100% tps when floored?
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Old 09-19-2016, 12:42 PM
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I will check for you and report back.
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Old 09-19-2016, 12:44 PM
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Originally Posted by skratch77 View Post
I tried a few apps and all are reporting 87% throttle flooring it.the dealer did a huge top end job and had the car for over a month

can you see if your car shows 100% tps when floored?
Very interesting...

I can take a look when I get home later tonight and report back.
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Old 09-19-2016, 12:54 PM
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100% load.
I'm EC V5 tuned.
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Old 09-19-2016, 01:01 PM
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I'm thinking maybe I was looking at the wrong value.
I looked at load percentage... but that may not be accurate. I'll have to check TPS...

I'm using Dashcommand via ELM-327 and iPhone
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Old 09-19-2016, 01:05 PM
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Originally Posted by MTV10 View Post
I'm thinking maybe I was looking at the wrong value.
I looked at load percentage... but that may not be accurate. I'll have to check TPS...

I'm using Dashcommand via ELM-327 and iPhone
depends on app some call it absolute throttle position and some call it tsp % easiest way is just moving the gas pedal and seeing it adjust the %
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Old 09-19-2016, 01:07 PM
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Originally Posted by AMG3.2 View Post
Very interesting...

I can take a look when I get home later tonight and report back.
thanks and I'm wondering if most tunes just allow the throttle bodies to just open up 100% to get that extra top end rush
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Old 09-19-2016, 01:11 PM
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Eurocharged V5

Foot to the floor


Throttle stomp graph
Attached Thumbnails throttle % wide open stock vs tunes?-screenshot_20160919-130027.png   throttle % wide open stock vs tunes?-screenshot_20160919-130102.png  
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Old 09-19-2016, 01:18 PM
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Originally Posted by skratch77 View Post
thanks and I'm wondering if most tunes just allow the throttle bodies to just open up 100% to get that extra top end rush
Doubt it. There's more behind tuning than that.
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Old 09-19-2016, 01:29 PM
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seldom drive by wire cars will have 100% open throttle
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Old 09-19-2016, 01:29 PM
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Originally Posted by AMG3.2 View Post
Doubt it. There's more behind tuning than that.
I thought I read a while ago that the detuning of our 63 in stock form was the throttle bodies not opening up all the way.
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Old 09-19-2016, 01:31 PM
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Originally Posted by Jasonoff View Post
Eurocharged V5

Foot to the floor


Throttle stomp graph
not sure how to compare to my software and don't know if your 100% value is the actual foot pedal vs the actual throttle position sensor and if your angle %is the actual throttle bodies
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Old 09-19-2016, 01:33 PM
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87% is the maximum the throttle can open. If you do a search it's been discussed before.
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Old 09-19-2016, 01:35 PM
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Originally Posted by BLKROKT View Post
87% is the maximum the throttle can open. If you do a search it's been discussed before.
on my e55 I can get it to open 100% and can confirm it visually with the intake off looking at the blade opening up.

wonder if tuning can open it up all the way?
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Old 09-19-2016, 01:39 PM
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Here's the thread. It's like 90% because of the throttle shaft diameter. Anything more than that is pointless.

https://mbworld.org/forums/c63-amg-w...e-comment.html
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Old 09-19-2016, 01:43 PM
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Originally Posted by BLKROKT View Post
Here's the thread. It's like 90% because of the throttle shaft diameter. Anything more than that is pointless.

https://mbworld.org/forums/c63-amg-w...e-comment.html
Done and done.
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Old 09-19-2016, 01:46 PM
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Ok just checked Absolute TPS %.

87.8% foot to the floor.
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Old 09-19-2016, 01:47 PM
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Torque limiter maps are responsible on detune stock file not throttle opening.
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Old 09-19-2016, 01:53 PM
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Originally Posted by Robert AMG View Post
Torque limiter maps are responsible on detune stock file not throttle opening.
Throttle body, bud.
Stock cars open less that 70% from what I'm reading. Perhaps I'm mistaken...
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Old 09-19-2016, 02:00 PM
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Did the dealer perform an update? I had my 63 in a few weeks ago, and I asked for the newest update (my fault..it helped on my G37). When I got it back it felt de-tuned.....so I immediately got the EC V5 and all is good.
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Old 09-19-2016, 02:10 PM
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ok can someone please with a stock file see if the throttle body is 70%? or 87.9
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Old 09-19-2016, 02:14 PM
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Originally Posted by Schulminator View Post
Did the dealer perform an update? I had my 63 in a few weeks ago, and I asked for the newest update (my fault..it helped on my G37). When I got it back it felt de-tuned.....so I immediately got the EC V5 and all is good.
that's what I'm trying to figure out.my car was bought from Miami and was tuned in-house at renntech by previous owner and it felt flat after getting it back and was curious if i could tell if it's still tuned by the throttle % it's opening without putting it on a dyno
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Old 09-19-2016, 03:17 PM
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I was told by former MB tech the newest updates actually de-tune the car for emission purposes, not sure how true it is but my car felt like it afterwards.
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