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      03-23-2018, 09:25 AM   #45
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This is what I normally see......
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      03-23-2018, 09:25 AM   #46
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Quote:
Originally Posted by onfireX5 View Post
I’ve dyno’d a lot of turbo V8’s over the past 10 years. Never saw a torque curve like that unless the boost controller was messed up and dropping boost.
Yeah so I say take it to a strip, if he can trap 120+, then nothing to worry about.
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      03-23-2018, 09:34 AM   #47
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Originally Posted by onfireX5 View Post
I’ve dyno’d a lot of turbo V8’s over the past 10 years. Never saw a torque curve like that unless the boost controller was messed up and dropping boost.
^This. That combined with the lower WHP to higher WTQ numbers when that should be reversed. It seems odd. WHP is definitely too low for 127-129 MPH traps at 4300+ lbs. Could be the test. Could be a limitation. But it is off.
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      03-23-2018, 09:36 AM   #48
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Quote:
Originally Posted by Phatcat View Post
Yeah so I say take it to a strip, if he can trap 120+, then nothing to worry about.
Not 120+. 125+ or there is an issue. Big difference. With 120-123 MPH - that is a low-mid to mid 11 second car.
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      03-23-2018, 09:40 AM   #49
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Originally Posted by vtknight View Post
Not 120+. 125+ or there is an issue. Big difference. With 120-123 MPH - that is a low-mid to mid 11 second car.
I say 120 because I don't know how good he is at launching the car. Many F10 M5 driver when they go on the strip they trap 115 or less because they don't know how to launch the car, it's all wheel spin.

Since F90 has AWD I assume 120 should be easy even if not launched well. So I say if he can trap 120 with ease then I think the car has no problem.
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      03-23-2018, 09:50 AM   #50
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Quote:
Originally Posted by Phatcat View Post
I say 120 because I don't know how good he is at launching the car. Many F10 M5 driver when they go on the strip they trap 115 or less because they don't know how to launch the car, it's all wheel spin.

Since F90 has AWD I assume 120 should be easy even if not launched well. So I say if he can trap 120 with ease then I think the car has no problem.
What is interesting in drags is wheelspin can actually increase trap speed as you "lengthen" the track. A hooked 60's will usually lower a trap speed. Being in the wrong settings or in terrible DA will be what hurts the trap number most - or - probably to your point if there is no prep at all and people spin all the way down the track. Either way - I understand your point. That said - RWD numbers of low 120's - which you will get in RWD mode (one reviewer tried it and ran a mid 11 at 124-125 MPH I believe) - but on in AWD mode - this M5 in reasonable DA - will run 125+ every time if the magazine testing so far is accurate. Normally, magazine testing can be slightly higher ET and slightly lower MPH to those owner testing (videos) as they are on prepped tracks and maybe they wait for better/good DA. I do believe we will see a 130 MPH trap by a stock M5 owner - and maybe a 10.6-10.7 (for sure 10.8) either with adding a tire - or again solid prep and launch (or both). That is why I say in AWD mode - we should not see anything worse that 124-125 MPH unless its a baking hot summer day with zero prep.
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      03-23-2018, 12:38 PM   #51
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Quote:
Originally Posted by onfireX5 View Post
I’ve dyno’d a lot of turbo V8’s over the past 10 years. Never saw a torque curve like that unless the boost controller was messed up and dropping boost.
You are death on, I forgot to put this up, we could not get any boost line, because there was no way to do it without making hole on the parts inside the engine. I'm going to order a replacement parts, so we can make hole for boost, and for next dyno we going to do that.
Dident want to do that on the car. Lol
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      03-23-2018, 12:43 PM   #52
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Quote:
Originally Posted by DINMANN View Post
You are death on, I forgot to put this up, we could not get any boost line, because there was no way to do it without making hole on the parts inside the engine. I'm going to order a replacement parts, so we can make hole for boost, and for next dyno we going to do that.
Dident want to do that on the car. Lol
What about the fact the runs produced the WHP output as lower than the WTQ when crank numbers are 600 HP/553 lb ft?

Seems like a red flag to me. Even if the WHP was lower than we thought - the WTQ should have been lower than the WHP number.
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      03-23-2018, 12:49 PM   #53
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Something sure doesn't seem to be right but an interesting datapoint nonetheless
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      03-23-2018, 01:03 PM   #54
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Quote:
Originally Posted by DINMANN View Post
You are death on, I forgot to put this up, we could not get any boost line, because there was no way to do it without making hole on the parts inside the engine. I'm going to order a replacement parts, so we can make hole for boost, and for next dyno we going to do that.
Dident want to do that on the car. Lol
Check with Dinan. They used to sell a spacer block with a boost tap built in.
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      03-23-2018, 01:38 PM   #55
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Sorry for the typo numbers corrected the AWD numbers read higher as can be seen on the pring outs

450 RWHP/481 RWTQ (W/front wheel load)
471 AWHP/509 AWTQ



Mustang Dynamometer is the most accurate and reliable dyno because it provides real-world loading and precise control. According to their description.

Now for bragging rights Dynojet is THE MOST POPULAR DYNO IN THE US. This is why we started with Mustang. I’m sure a Dynojet run will be up soon but for now we’re the first with any data.

Eventually we will run on a Dynojet as well with higher number and for the cherry on top, Dynojet is still lower numbers than the flywheel 15-18%

When upgrading parts it is recommend to dyno at the same place for a better idea of actual increase after each Mod . It will never be perfect due to elevation tempature and humidity and other variables as well as the correction factors.

In the end were just providing our own cars info im sure there will be other people posting soon. I’m yet to see the same car number between machines (dyno jet/mustang)usually it’s one car on one dyno and another guy across the country with the other dyno

Dynojet numbers coming soon.
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      03-23-2018, 02:19 PM   #56
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Quote:
Originally Posted by onfireX5 View Post
Check with Dinan. They used to sell a spacer block with a boost tap built in.
the plan was to take the car back in feb to DINAN for the 1st dyno, we sign over the car on the feb 8th, was told it well be here 4 hours later, but BMW marketing put hold on the cars till march. so yes I would have loved to take the car to dinan and let them run it.
the plan is to stop by the new location in Alabama some times in august.
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      03-23-2018, 02:35 PM   #57
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Quote:
Originally Posted by DINMANN View Post
Sorry for the typo numbers corrected the AWD numbers read higher as can be seen on the pring outs

450 RWHP/481 RWTQ (W/front wheel load)
471 AWHP/509 AWTQ



Mustang Dynamometer is the most accurate and reliable dyno because it provides real-world loading and precise control. According to their description.

Now for bragging rights Dynojet is THE MOST POPULAR DYNO IN THE US. This is why we started with Mustang. I’m sure a Dynojet run will be up soon but for now we’re the first with any data.

Eventually we will run on a Dynojet as well with higher number and for the cherry on top, Dynojet is still lower numbers than the flywheel 15-18%

When upgrading parts it is recommend to dyno at the same place for a better idea of actual increase after each Mod . It will never be perfect due to elevation tempature and humidity and other variables as well as the correction factors.

In the end were just providing our own cars info im sure there will be other people posting soon. I’m yet to see the same car number between machines (dyno jet/mustang)usually it’s one car on one dyno and another guy across the country with the other dyno

Dynojet numbers coming soon.

All understood - why do you think WHP is reading lower than the WTQ when crank output states HP is higher than TQ (600/553)?
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      03-23-2018, 02:49 PM   #58
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Originally Posted by M4LAKA View Post
Quote:
Originally Posted by ilushka85 View Post
Was first service performed on vehicle ?
I remember I drive the 1500km in a weekend on my m4 to get my first service right away lol
Considering you are limiting the revs, feels like that could make for an awfully long and boring weekend!
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      03-23-2018, 02:50 PM   #59
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Quote:
Originally Posted by ilushka85 View Post
Which part ? It’s all in the coding. As far as car telling you it hasn’t been serviced and in break in stage it’s the yellow icon of car on dash and under vehicle messages as a yellow warning message.
What does this have to do with detuning? The car logs multiple service points.

There was a lot of nonsense here-say over F80s too and I can tell you flat out that mine wasn't detuned and it didn't get any faster than my first autobahn pull until I jb4'd it, 1200 mile service or not.

The fact that the car "logs" and "yellow flags" the first service, and even if the speed is electronically limited initially has no bearing on whether the software is physically limiting the power output. Like some other guys are saying you're purely speculating. You have not "seen it in the code" you've seen the other non-correlating data in the code and you've made the assumption that what you believe is correct. Textbook observer bias.
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      03-23-2018, 03:15 PM   #60
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Quote:
Originally Posted by SDPLV View Post
Considering you are limiting the revs, feels like that could make for an awfully long and boring weekend!
Better than 2 boring weekends in your new M4
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      03-23-2018, 03:18 PM   #61
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Originally Posted by jalkster View Post
Quote:
Originally Posted by SDPLV View Post
Considering you are limiting the revs, feels like that could make for an awfully long and boring weekend!
Better than 2 boring weekends in your new M4
Okay, you make a valid point.
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      03-23-2018, 03:22 PM   #62
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Quote:
Originally Posted by MTHX View Post
20% drivetrain lost on awd and 15% on rwd normally ?
on mustand dyno, could be up to 30% on awd.

if you want to compare number with e63s 2018 on mustand dyno ...

https://grfilms.net/v-i-dyno%E2%80%9...n_h3Jn8z0.html
Except everything on that douche bags YouTube channel is complete BS! I wouldn't take anything that retard posts as truth or fact
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      03-23-2018, 03:28 PM   #63
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What's the point of running the car before it's first service??? lol
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      03-23-2018, 03:31 PM   #64
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What's the point of running the car before it's first service??? lol
To be the first to do something useless!
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      03-23-2018, 03:34 PM   #65
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Quote:
Originally Posted by MTHX View Post
20% drivetrain lost on awd and 15% on rwd normally ?
on mustand dyno, could be up to 30% on awd.

if you want to compare number with e63s 2018 on mustand dyno ...

https://grfilms.net/v-i-dyno%E2%80%9...n_h3Jn8z0.html
No. A Mustang dyno is definitely - not - 30% drivetrain loss.
The Mustang dyno may read 6-8% lower than a dynojet on average - but for a RWD car - new cars - you are only looking at 10-12% as they are more efficient now. AWD 12-15%. Maybe 18% at the absolute worst.

I am not too sure about this groups testing. I have asked three times with no answer why their WHP numbers are lower than the WTQ numbers when we should see the OPPOSITE. The number also do not make sense - nor do they equal the type of performance these cars are demonstrating (127-129 MPH traps at 4300+ lbs).

I will wait for a Shop I know to dyno these cars - because as it stands - the results do not make sense.

Last edited by vtknight; 03-23-2018 at 03:40 PM..
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      03-23-2018, 05:12 PM   #66
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Running-in period limits the revs from going over a certain amount. Running-in oil is used in the engine and diff. The purpose of running-in period is to coat and remove component deposits (shards) etc. Once the first service ("Running-in Check") is performed, BMW reset your service indicator and delimits the engine power completely.
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