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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Dyno.. My N52 Turbo Finally made it to the Dyno.



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      11-17-2016, 11:48 PM   #1
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Dyno.. My N52 Turbo Finally made it to the Dyno.

Well like the title said finally made it to the dyno tonight. I'm happy with the outcome to say the least...


Low Boost 12psi 461hp and 371tq


Mid Boost 15psi 498hp and 421tq


High Boost 19psi 569hp and 500tq


High and Low boost difference


Only got three pulls on high boost when a weak point on the engine started showing its ugly head. Started pushing coolant out of the expansion tank cap. The cylinder head is lifting under high boost and pushing pressure into the cooling system, so will need to replace the head bolts with studs and retorque the head. Turned it back down to 15psi and did a couple more pulls and it's still ok...

This engine is BEAST!

I'll post some better dyno graph pics with notes when I get them on a jump drive and will also post a video or two this weekend with the runs.

Youtube uncut unedited dyno clip.
https://www.youtube.com/watch?v=AO-eF5OA224

Last edited by DigiDon; 11-18-2016 at 03:15 PM.. Reason: adding content
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      11-18-2016, 12:09 AM   #2
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Holy shit- WoW!!!!!
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      11-18-2016, 12:21 AM   #3
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That's outrageous, holy smokes.
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      11-18-2016, 12:38 AM   #4
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Damn. Whats an N54 put down at 12psi?
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      11-18-2016, 02:39 AM   #5
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Very impressive wow didn't expect this
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      11-18-2016, 03:20 AM   #6
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ABOUT TIME! This is even better than we suspected, congratulations on a killer job.
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      11-18-2016, 04:02 AM   #7
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      11-18-2016, 04:34 AM   #8
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HOLY MOLY!!!! n52 making 569rwhp at 19psi!!!
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      11-18-2016, 04:35 AM   #9
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Ahhh,the benifets of a single! Nice work! Someone finally turbo'd a n52
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      11-18-2016, 04:46 AM   #10
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This is some crazy findings aye as I know the n54 stock twins are maxing at ~18-20psi too...

Ohhh another note DigiDon , do you think if going forged internals will make your n52 be able to take more boost? i.e. 36psi on the GTX3582r like the world record 861rwhp n54 since you have already done the n54 tranny swap
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      11-18-2016, 04:53 AM   #11
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Great work!!!!!

One question, did you leave the soft limiter in the tune that pulls intake valve lift at 6800 RPM? All of your pulls start to drop power at that point.
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      11-18-2016, 07:09 AM   #12
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Congrats Don! That thing is a beast for sure. Now build the rest of us some manifolds so we can come play too! lol
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      11-18-2016, 07:33 AM   #13
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      11-18-2016, 08:54 AM   #14
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      11-18-2016, 09:03 AM   #15
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And thus, people with 335is sold them to buy 328is. We won guys - the fight is over!
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      11-18-2016, 09:05 AM   #16
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Quote:
Originally Posted by mecbain View Post
Very impressive wow didn't expect this
What he said, great news...
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      11-18-2016, 09:51 AM   #17
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And thus, people with 335is sold them to buy 328is. We won guys - the fight is over!
lol
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      11-18-2016, 10:23 AM   #18
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This is ridiculous funny a buddy of mine who has a n54 5 series still says the n52 is trash I'm like whatever dude
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      11-18-2016, 10:29 AM   #19
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Quote:
Originally Posted by DigiDon View Post
Well like the title said finally made it to the dyno tonight. I'm happy with the outcome to say the least...
Are these WHP or crank HP?
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      11-18-2016, 10:39 AM   #20
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Whp
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      11-18-2016, 10:43 AM   #21
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And if these are whp, you are putting more power than n54 at the same boost.

Damn! N52 is def wolf in sheep's clothing.
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      11-18-2016, 10:47 AM   #22
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Thats what i would expect. The N52 head will have a higher natural VE than the N54, giving it more power potential at a given boost level.

If you really wanted to push it, a frankenmotor with the n52 head, n54 block and running msv70 would be strong and have tons of potential.
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