pissed n confussed at the dyno

Goldenchild · 06-14-2012, 10:01 PM

so i went and got the car dyno today on a mustang dyno. i did logs while he was doing a couple runs. but he was having trouble with running it in 3rd gear cus its auto and it would automatically downshift to 2nd gear, so he had to run it at a higher rpm in 3rd and and above 40mph. well after all said and done i was not impressed with the numbers. he blamed it on the dyno cus of my car being auto or the dyno reads alot less..but either way the readings are 279hp, 314tq. Which i don't think is right? car feels and seems alot faster then that. especially with what i raced. can i get your input on this..it has me frustrated and confused

Everfly · 06-14-2012, 10:41 PM

I think too low Eventhough with Xi and mustang dyno

onebadmofo · 06-14-2012, 11:05 PM

Tell the dyno operator not to mash the gas pedal all the way to the floor, there's a kickdown switch there.

eyim1988 · 06-14-2012, 11:15 PM

Quote:

Originally Posted by onebadmofo

Tell the dyno operator not to mash the gas pedal all the way to the floor, there's a kickdown switch there.

+1, although those numbers seem about rigbt for your mods/mustang dyno.

CPWINCH · 06-15-2012, 03:10 AM

i thought you were supposed to dyno in 4th?

Mike@N54Tuning.com · 06-15-2012, 06:05 AM

Quote:

Originally Posted by Goldenchild

so i went and got the car dyno today on a mustang dyno. i did logs while he was doing a couple runs. but he was having trouble with running it in 3rd gear cus its auto and it would automatically downshift to 2nd gear, so he had to run it at a higher rpm in 3rd and and above 40mph. well after all said and done i was not impressed with the numbers. he blamed it on the dyno cus of my car being auto or the dyno reads alot less..but either way the readings are 279hp, 314tq. Which i don't think is right? car feels and seems alot faster then that. especially with what i raced. can i get your input on this..it has me frustrated and confused

The logs tell the story. The tune is asking for 16psi and your car is producing 10psi. Massive boost leak or wastegate issue would be my guess...

Mike

Sam335ix · 06-15-2012, 09:44 AM

My numbers were 280 whp and 380 torque... I need to log a few runs.

SflBimmer8484 · 06-15-2012, 12:19 PM

Lets see the ignition.

Goldenchild · 06-15-2012, 01:01 PM

Quote:

Originally Posted by Mike@N54Tuning.com

The logs tell the story. The tune is asking for 16psi and your car is producing 10psi. Massive boost leak or wastegate issue would be my guess...

Mike

So how do I go about testing the Wastegate or boost leak. I went through everything and I'm so frustrated ...errrr!!!

Goldenchild · 06-15-2012, 01:07 PM

What's weird is that when I'm on the streets. My boost hits 14 but never hit 17 yet. It was hot yesterday about 87 degrees. Just wonder how I would be having a leak already. Maybe I should put the stock cp on n see if it's the new cp I got leaking???

eyim1988 · 06-15-2012, 01:12 PM

Quote:

Originally Posted by Goldenchild

What's weird is that when I'm on the streets. My boost hits 14 but never hit 17 yet. It was hot yesterday about 87 degrees. Just wonder how I would be having a leak already. Maybe I should put the stock cp on n see if it's the new cp I got leaking???

Are uou sure you see the boost hitting 14+ on the streets? Map 2 jb4? Sorry on a iPhone. You shouldn't be hitting 17 psi.

Goldenchild · 06-15-2012, 01:17 PM

Quote:

Originally Posted by eyim1988

Are uou sure you see the boost hitting 14+ on the streets? Map 2 jb4? Sorry on a iPhone. You shouldn't be hitting 17 psi.

On the st. Map 2 jb4 and I hit 10-14. But I tried map 7 and it's only 14. Both maps never go above 14 even with 100 octane.

eyim1988 · 06-15-2012, 01:19 PM

Was it with full 100 octane ? Map 7 should be hitting 16+.

Goldenchild · 06-15-2012, 01:23 PM

20% 93 but I've been running it awhile to get the 100 in the motor

Goldenchild · 06-15-2012, 01:25 PM

Any ideas on what to do to fix or figure out my problem. Sucks spending this money and it's not running full potential ???

eyim1988 · 06-15-2012, 01:31 PM

Quote:

Originally Posted by Goldenchild

Any ideas on what to do to fix or figure out my problem. Sucks spending this money and it's not running full potential ???

It's most likely a boost leak. Do you hear any excessive air sounds when spooling ? Put it in a high gear up a steep hill and floor it and you might hear air leaking sound?? Lol

eyim1988 · 06-15-2012, 01:44 PM

also you were suppose to dyno on 4th and i have a feeling the guy who was dynoing your car hit the kickdown button like someone above me said..

sA x sKy · 06-15-2012, 01:55 PM

Agreed with everything said above.. 4th gear pulls without hitting that damn kickdown button. And definitely a boost leak judging by the logs.

Goldenchild · 06-15-2012, 02:31 PM

Guess imma have my buddy at BMW do a smoke test for me n see where it's coming from. But meanwhile I might throw on the factory cp n see if that's the problem. Cus when I put the new one on I forgot to put the big o ring gasket to the throttle body on. And I was only boosting 8-9. But after I fixed that it now boost 10-14. On map 2. But I still feel like the new cp isn't fully fitted even tho I adjusted and readjusted. Is there another o ring gasket to the inter cooler pipping?

06-14-2012, 10:01 PM	#1
Goldenchild Private First Class 10 Rep 139 Posts Drives: N55 e90 335xi Join Date: May 2012 Location: York, Pa iTrader: (0)	pissed n confussed at the dyno so i went and got the car dyno today on a mustang dyno. i did logs while he was doing a couple runs. but he was having trouble with running it in 3rd gear cus its auto and it would automatically downshift to 2nd gear, so he had to run it at a higher rpm in 3rd and and above 40mph. well after all said and done i was not impressed with the numbers. he blamed it on the dyno cus of my car being auto or the dyno reads alot less..but either way the readings are 279hp, 314tq. Which i don't think is right? car feels and seems alot faster then that. especially with what i raced. can i get your input on this..it has me frustrated and confused Attached Images __________________ 2011 N55 335xi - Jb4 - bms intake - ER charge pipe - cpe 5" downpipe - bms meth trunk kit - aa fmic - ER carbon fiber shroud - 60 scale/60 additive - 93 octane - 328awhp/395tq on mustang dyno
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06-14-2012, 10:41 PM	#2
Everfly Brigadier General 154 Rep 3,143 Posts Drives: BMW Join Date: Apr 2011 Location: Indianapolis iTrader: (51)	I think too low Eventhough with Xi and mustang dyno
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06-14-2012, 11:05 PM	#3
onebadmofo Colonel 346 Rep 2,396 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	Tell the dyno operator not to mash the gas pedal all the way to the floor, there's a kickdown switch there.
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06-15-2012, 03:10 AM	#5
CPWINCH Brigadier General 732 Rep 4,635 Posts Drives: Toyota Prius Join Date: May 2010 Location: Los Angeles iTrader: (7)	i thought you were supposed to dyno in 4th? __________________ Follow my BMW instagram @CARMODIFICATION Let me know you are from bimmerpost and i'll follow back
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06-15-2012, 09:44 AM	#7
Sam335ix Major 65 Rep 1,274 Posts Drives: 335 ix performance edition Join Date: Sep 2011 Location: Redskin Country iTrader: (0)	My numbers were 280 whp and 380 torque... I need to log a few runs. __________________ 2011 e90 KW V1, JB4, BMS Dp, BMS Intake, CP, Alpina Flash, ISO, E85 Coming soon to the garage: 2014 M3 Maybe M5
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06-15-2012, 12:19 PM	#8
SflBimmer8484 Brigadier General 1467 Rep 3,157 Posts Drives: . Join Date: Dec 2011 Location: Florida iTrader: (5)	Lets see the ignition.
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06-15-2012, 01:07 PM	#10
Goldenchild Private First Class 10 Rep 139 Posts Drives: N55 e90 335xi Join Date: May 2012 Location: York, Pa iTrader: (0)	What's weird is that when I'm on the streets. My boost hits 14 but never hit 17 yet. It was hot yesterday about 87 degrees. Just wonder how I would be having a leak already. Maybe I should put the stock cp on n see if it's the new cp I got leaking??? __________________ 2011 N55 335xi - Jb4 - bms intake - ER charge pipe - cpe 5" downpipe - bms meth trunk kit - aa fmic - ER carbon fiber shroud - 60 scale/60 additive - 93 octane - 328awhp/395tq on mustang dyno
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06-15-2012, 01:19 PM	#13
eyim1988 Lieutenant Colonel 98 Rep 1,647 Posts Drives: 2022 BMW M4 Join Date: Feb 2011 Location: Los Angeles, CA iTrader: (5) Garage List 2022 M4 [0.00]	Was it with full 100 octane ? Map 7 should be hitting 16+. __________________ Current: 2021 X3MC Past: 2013 bmw 335i, 2011 bmw 335i coupe, 2016 bmw m3
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06-15-2012, 01:23 PM	#14
Goldenchild Private First Class 10 Rep 139 Posts Drives: N55 e90 335xi Join Date: May 2012 Location: York, Pa iTrader: (0)	20% 93 but I've been running it awhile to get the 100 in the motor __________________ 2011 N55 335xi - Jb4 - bms intake - ER charge pipe - cpe 5" downpipe - bms meth trunk kit - aa fmic - ER carbon fiber shroud - 60 scale/60 additive - 93 octane - 328awhp/395tq on mustang dyno
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06-15-2012, 01:25 PM	#15
Goldenchild Private First Class 10 Rep 139 Posts Drives: N55 e90 335xi Join Date: May 2012 Location: York, Pa iTrader: (0)	Any ideas on what to do to fix or figure out my problem. Sucks spending this money and it's not running full potential ??? __________________ 2011 N55 335xi - Jb4 - bms intake - ER charge pipe - cpe 5" downpipe - bms meth trunk kit - aa fmic - ER carbon fiber shroud - 60 scale/60 additive - 93 octane - 328awhp/395tq on mustang dyno
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06-15-2012, 01:44 PM	#17
eyim1988 Lieutenant Colonel 98 Rep 1,647 Posts Drives: 2022 BMW M4 Join Date: Feb 2011 Location: Los Angeles, CA iTrader: (5) Garage List 2022 M4 [0.00]	also you were suppose to dyno on 4th and i have a feeling the guy who was dynoing your car hit the kickdown button like someone above me said.. __________________ Current: 2021 X3MC Past: 2013 bmw 335i, 2011 bmw 335i coupe, 2016 bmw m3
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06-15-2012, 01:55 PM	#18
sA x sKy Sameet 739 Rep 2,541 Posts Drives: AY/B M4 '15 Join Date: Apr 2010 Location: Long Island, New York iTrader: (3) Garage List 2015 BMW M4 [0.00]	Agreed with everything said above.. 4th gear pulls without hitting that damn kickdown button. And definitely a boost leak judging by the logs.
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06-15-2012, 02:31 PM	#19
Goldenchild Private First Class 10 Rep 139 Posts Drives: N55 e90 335xi Join Date: May 2012 Location: York, Pa iTrader: (0)	Guess imma have my buddy at BMW do a smoke test for me n see where it's coming from. But meanwhile I might throw on the factory cp n see if that's the problem. Cus when I put the new one on I forgot to put the big o ring gasket to the throttle body on. And I was only boosting 8-9. But after I fixed that it now boost 10-14. On map 2. But I still feel like the new cp isn't fully fitted even tho I adjusted and readjusted. Is there another o ring gasket to the inter cooler pipping? __________________ 2011 N55 335xi - Jb4 - bms intake - ER charge pipe - cpe 5" downpipe - bms meth trunk kit - aa fmic - ER carbon fiber shroud - 60 scale/60 additive - 93 octane - 328awhp/395tq on mustang dyno
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