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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Toronto Dyno Day



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      02-18-2009, 12:50 PM   #23
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By offending potential customers isn't really good business practices shiv.
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      02-18-2009, 12:52 PM   #24
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I guess his dynos is all he has left cuz he's losing on the drag strip.
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      02-18-2009, 12:57 PM   #25
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All I said was the GTR looks nicely tuned. I'm not going to lie and say that the other tunes looked good. Because you guys already know how they look. And I don't see the need to take it personally. It's just your car. And it can be fixed. Unlike other things.

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      02-18-2009, 12:58 PM   #26
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Like what?
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      02-18-2009, 01:00 PM   #27
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Quote:
Originally Posted by luca335i View Post
Like what?
irrational hatred, bias, defensiveness, global warming (arguable), etc,. I think we all need to take a deep breathe sometimes and just chill the heck out.
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      02-18-2009, 01:01 PM   #28
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Quote:
Originally Posted by luca335i View Post
By offending potential customers isn't really good business practices shiv.
If potential customers get offended by him appreciating a GTR dyno... my mind is blown
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      02-18-2009, 01:03 PM   #29
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Other than the lower numbers please shed some light and technical info on why it doesn't look good. I respect your expertise and I'm not a tuner. Remember we all have the same car and were on this forum to talk about and explain these things. In fact my numbers I'm happy with 360 whp is what I was targeting for anyway. In terms of the graphs I'm gonna admit I know shit about what's happening and why certain cars with the same tune pulled lower numbers.
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      02-18-2009, 01:07 PM   #30
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Quote:
Originally Posted by luca335i View Post
Other than the lower numbers please shed some light and technical info on why it doesn't look good. I respect your expertise and I'm not a tuner. Remember we all have the same car and were on this forum to talk about and explain these things. In fact my numbers I'm happy with 360 whp is what I was targeting for anyway. In terms of the graphs I'm gonna admit I know shit about what's happening and why certain cars with the same tune pulled lower numbers.
Do you have all the dynojet run files (.drf) from that day? Looks like there are a few runs not shown for each car. Getting more data points will help a lot with analysis.

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      02-18-2009, 01:09 PM   #31
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Quote:
Originally Posted by jpsimon View Post
If potential customers get offended by him appreciating a GTR dyno... my mind is blown
No doubt the GTR is a beast jpsimon. But I feel that wasn't his intention. I really don't care if you or shiv think jb3 sux. We have the same car and the only thing seperating jb owners and v3 owners is a damn box with wires.
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      02-18-2009, 01:36 PM   #32
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nice to meet u all but i see a storm brewing and leaving this thread lol..
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      02-18-2009, 01:37 PM   #33
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hahahahahaha
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      02-18-2009, 01:47 PM   #34
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don't start the drama again please... if it works, it works, who cares about the rest...

but either way, numbers seems bit lower than typical dynos on the forum... i have jb3 1.22 so don't flame... lol...
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      02-18-2009, 02:00 PM   #35
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I'll get u those .drf files shiv. I'll email it.
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      02-18-2009, 02:00 PM   #36
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Lets keep this clean.

The dyno session was problematic to say the least. There were two major problems with the way it was run

1) Virtually no fan. The fan they had was not positioned well, nor was it powerful

2) The runs were back to back. Basically 4 runs in 10minuntes. No time to cool down to allow the car to recover.

I was very disappointed in the numbers, especially on the cars with the stock intercoolers. One guy ran the same with map4 as map6, and in hindsight it was a mistake to run map 6 under those conditions, even though people had some supporting mods and 94 octane gas.

I really think the shop did not have much experience with these cars and how to properly dyno a turbo car. Its a shame as it was fun meeting everybody, but judging by the graphs no one is really happy with their numbers.

Perfect example is my stock run. 247hp??? I think the car was completely heat soaked
by that point, and all my HP values are off..

The ambient temp in the room rose 5 degrees between my first run and last, so you can imagine the temp in the engine and my reference to the heat soak issue.

Mike

Last edited by Mike@N54Tuning.com; 02-18-2009 at 02:48 PM..
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      02-18-2009, 02:04 PM   #37
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There is alot of crappy boost control, throttle closure, and or ALOT ignition correction on those maps.

the map goes flat at 4500. Then straight up. Similar to a VTEC equipped car. It doesn't take a tuner to see its problematic. I wonder how bad that feels inside the car. As a third party with neither tune, those tunes need to be re-done.
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      02-18-2009, 02:06 PM   #38
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I feel you mike. I'd like to see results on a better fan for sure. But still can't explain my bros car compared nicks car who had same mods and ran same map.
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      02-18-2009, 02:10 PM   #39
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If you guys are happy with that, more power to you/ From someone who dials cars in on said same style dyno, IMO It needs some work. Not even the fanniest of fanboyism with smooth that graph out.
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      02-18-2009, 02:19 PM   #40
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if there was setting problem, crappy fan and wrong position, why the GTR's dyno came out much nicer??
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      02-18-2009, 02:24 PM   #41
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Quote:
Originally Posted by bren335i View Post
If you guys are happy with that, more power to you/ From someone who dials cars in on said same style dyno, IMO It needs some work. Not even the fanniest of fanboyism with smooth that graph out.
I posted earlier in this thread, but many of them are clearly running too much boost, not enough octane, not enough airflow, etc. You look at other dyno runs of the same tuning and they look fine. So when the first one ran and got crap results why didn't the other ones run lower maps, improve airflow, improve octane, or just go home? Seems like sheep stampeding off a cliff! Was there no laptop available?

EDIT look at map 3 in this dyno test compared to map 6. I am not sure what the differences are but you can see map 6 has knock retard and map 3 does not. So why do these people run map 6?

http://www.e90post.com/forums/showthread.php?t=229039

Also for those who dyno does the car feel lumpy on the road?
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      02-18-2009, 02:31 PM   #42
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Quote:
Originally Posted by bren335i View Post
There is alot of crappy boost control, throttle closure, and or ALOT ignition correction on those maps.

the map goes flat at 4500. Then straight up. Similar to a VTEC equipped car. It doesn't take a tuner to see its problematic. I wonder how bad that feels inside the car. As a third party with neither tune, those tunes need to be re-done.
Most likely knock retard from running map 6 with no airflow. The cars with more mods were smoother, but in retrospect we all should have been using map 3/4, even then without airflow results would be skewed but not as badly.

Mike
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      02-18-2009, 02:32 PM   #43
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Also why can no one see this chart? It should be the first thing they see in the thread!

Here is map 6 with more supporting mods, you can see it smoothing out. With airflow I bet it would be perfect.

Mike


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      02-18-2009, 02:37 PM   #44
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Quote:
Originally Posted by runningman View Post
I posted earlier in this thread, but many of them are clearly running too much boost, not enough octane, not enough airflow, etc. You look at other dyno runs of the same tuning and they look fine. So when the first one ran and got crap results why didn't the other ones run lower maps, improve airflow, improve octane, or just go home? Seems like sheep stampeding off a cliff! Was there no laptop available?

EDIT look at map 3 in this dyno test compared to map 6. I am not sure what the differences are but you can see map 6 has knock retard and map 3 does not. So why do these people run map 6?

http://www.e90post.com/forums/showthread.php?t=229039

Also for those who dyno does the car feel lumpy on the road?
On the third car I asked the owner of the car to switch to map 4 and it gave the same results if not more power as map 6, and a smoother curve, but I think everybody wanted to test out map 6 on their own car..

Mike
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