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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Pure Turbos N55 single turbo upgrade



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      05-30-2014, 09:42 PM   #485
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Quote:
Originally Posted by Jsoboti View Post
Im confused how a FBO only makes 297whp
Every dyno reads different. Mustang reads fairly low. Focus on the difference between the runs rather than the actual numbers.
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      05-30-2014, 09:43 PM   #486
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Quote:
Originally Posted by Pure Turbos View Post
FBO w/ JB4 on map 2 and 91 pump.
What's yr guess on the previous turbo? How much gain do u think the difference will be? Will u be putting one in n dyno it on the same machine to show the diff?
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      05-30-2014, 09:45 PM   #487
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Quote:
Originally Posted by Pure Turbos View Post
Every dyno reads different. Mustang reads fairly low. Focus on the difference between the runs rather than the actual numbers.
Fully agreed, my stock on dynamic dyno only give me 225ps fully stock.
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      05-30-2014, 09:50 PM   #488
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Originally Posted by Andym3100k View Post
What's yr guess on the previous turbo? How much gain do u think the difference will be? Will u be putting one in n dyno it on the same machine to show the diff?
What fuel do you normally run?
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      05-30-2014, 10:23 PM   #489
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Quote:
Originally Posted by Pure Turbos View Post
Every dyno reads different. Mustang reads fairly low. Focus on the difference between the runs rather than the actual numbers.
That makes sense, but its hard to believe that the guys running FBO with JB4 on map 2 or 5 that are posting 350-370 whp from the dyne can be THAT far off from your 297 or whatever it was. Im fairly new at this so I'm just trying to understand. I appreciate the knowledge you're throwing at me
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      05-30-2014, 11:17 PM   #490
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Nice gains for just turbo change
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      05-31-2014, 12:41 AM   #491
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Quote:
Originally Posted by Jsoboti View Post
That makes sense, but its hard to believe that the guys running FBO with JB4 on map 2 or 5 that are posting 350-370 whp from the dyne can be THAT far off from your 297 or whatever it was. Im fairly new at this so I'm just trying to understand. I appreciate the knowledge you're throwing at me
Those showing dyno sheets at 350-370 whp with stock turbo, what fuel are they running?
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      05-31-2014, 12:52 AM   #492
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To me the dyno look like the car started to fall on its face at 5700rpms .?? It's just from what I see from dyno sheet ..it peaked higher the. Stock turbo tho .. I'm sure on 93 with e85 mix it will put some good number ...
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      05-31-2014, 01:37 AM   #493
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Quote:
Originally Posted by ShlemonboostedM
To me the dyno look like the car started to fall on its face at 5700rpms .?? It's just from what I see from dyno sheet ..it peaked higher the. Stock turbo tho .. I'm sure on 93 with e85 mix it will put some good number ...
Thats because he ran map2. Boost target falls off in that map. You need custom map6.
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      05-31-2014, 08:41 AM   #494
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You right .. I totally forgot bout that ...
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      05-31-2014, 12:44 PM   #495
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Wow great so around 14.5 psi with 45whp gain and increased temps. Delta is what matters and it looks awesome so far
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      05-31-2014, 01:33 PM   #496
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Originally Posted by evo335xi
Wow great so around 14.5 psi with 45whp gain and increased temps. Delta is what matters and it looks awesome so far
Yes its very much worth the money. I dynoed over 50 whp gains on 14.5 psi over stock turbo. If you can run meth or e85 gains are even higher.

But on 93 and 14.5 psi, gains are already impressive.
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      05-31-2014, 03:14 PM   #497
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So if i dyno 360whp at map 2 fbo on 93oct I should expect around 390-400whp with just turbo upgrade ?
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      05-31-2014, 03:30 PM   #498
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Quote:
Originally Posted by Pure Turbos View Post
Every dyno reads different. Mustang reads fairly low. Focus on the difference between the runs rather than the actual numbers.
How will you know if the turbo made a difference from your first turbo build if you never dyno the first turbo on you car to begin with? Would be great if you could slap on the first turbo and do a few dyno pulls with that.. regarding stock turbo n55 on map 2 ive seen many dyno in the range of 310-340 depending on dyno..
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      05-31-2014, 06:38 PM   #499
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Quote:
Originally Posted by Pure Turbos View Post
What fuel do you normally run?
Back in Singapore, our shell 98Ron should be the US 93, our 95ron should be us 91 octane.

1 always use 98 + 1/2 a bottle of 300ml of +6 Ron octane booster, so I should be getting 104ron for my fuel.
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      05-31-2014, 07:29 PM   #500
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That's a great % improvement for the money. Mustang dynos tend to read significantly lower than Dynojets, 297whp for FBO on 91 and Map 2 makes sense.
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      06-01-2014, 03:20 AM   #501
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Yes, Mustang dynos are usually at least 15% lower than a Dynojet sometimes up to 20%. Like posted the big difference is the delta. I can't wait to see what it does by someone running e40 or meth compared to their FBO. If it is still a 45whp gain that is a great deal! Should get us solidly in the 11's.
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      06-01-2014, 05:09 AM   #502
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Quote:
Originally Posted by ShlemonboostedM
So if i dyno 360whp at map 2 fbo on 93oct I should expect around 390-400whp with just turbo upgrade ?
Correct
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      06-01-2014, 05:11 AM   #503
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Quote:
Originally Posted by Andym3100k
Quote:
Originally Posted by Pure Turbos View Post
What fuel do you normally run?
Back in Singapore, our shell 98Ron should be the US 93, our 95ron should be us 91 octane.

1 always use 98 + 1/2 a bottle of 300ml of +6 Ron octane booster, so I should be getting 104ron for my fuel.
Lol for sure not. If you add 300ml in 1 tank, i assume 6 series has 70l tank you have maybe us 94 maybe even less.
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      06-01-2014, 05:14 AM   #504
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Quote:
Originally Posted by hetzle
That's a great % improvement for the money. Mustang dynos tend to read significantly lower than Dynojets, 297whp for FBO on 91 and Map 2 makes sense.
Mine did 279 whp stock with catback, 315 whp map2 93 octane, 339 whp map3 93 oct and meth. All stock turbo.

With pure that went to 392 whp
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      06-01-2014, 05:15 AM   #505
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Quote:
Originally Posted by JETmn
Yes, Mustang dynos are usually at least 15% lower than a Dynojet sometimes up to 20%. Like posted the big difference is the delta. I can't wait to see what it does by someone running e40 or meth compared to their FBO. If it is still a 45whp gain that is a great deal! Should get us solidly in the 11's.
Thats what i have ran more or less. Anyways fmic coming soon. Might redyno then.
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      06-02-2014, 09:05 AM   #506
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Any plans to raise the octane and max the turbo out?
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