N54Tech.com - International Turbo Racing Discussion
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katsooba katsooba is offline
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Default 12-02-2015, 06:41 AM

Maybe bmw started working with Pure and did not tell us?;-)


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(#27)
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DB90 DB90 is offline
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Default 12-02-2015, 06:54 AM

Quote:
Originally Posted by Weehe
14whp difference from FBO with E50 in a DCT vs AT on pump and tune only. We also dont even know how much boost the DCT was on. In this case the B58 peaked 18psi and made that much. As for map 2, tune only on 93, that is right where (maybe 5-10whp more) this B58 is stock.

However, I do have to say this has a lot less torque than the N55.

I think the f-series n55 would stack up better to the b58 tbh.
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Bours Bours is offline
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Default 12-02-2015, 07:37 AM

Quote:
Originally Posted by Weehe
14whp difference from FBO with E50 in a DCT vs AT on pump and tune only. We also dont even know how much boost the DCT was on. In this case the B58 peaked 18psi and made that much. As for map 2, tune only on 93, that is right where (maybe 5-10whp more) this B58 is stock.

However, I do have to say this has a lot less torque than the N55.
Would you say its faster stock than a jb4 map 2 on 93 oct ?? Isnt the b58 similar power like ppk bmw 335i ?
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Weehe Weehe is offline
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Default 12-02-2015, 08:11 AM

Quote:
Originally Posted by Bours
Would you say its faster stock than a jb4 map 2 on 93 oct ?? Isnt the b58 similar power like ppk bmw 335i ?
I have no clue. The car just came out. Just basing what I said off the dyno numbers
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Dhillon92 Dhillon92 is offline
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Default 12-02-2015, 08:26 AM

I would say its better than the n55 in the sense that it holds its HP till redline. The numbers are close but the power band is much bigger, looking forward to the development of this new engine!
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Default 12-02-2015, 09:10 AM

im not saying it isnt better then the n55, just pointing out the n55 makes great power fbo on 18psi as well. map 5 without the n20 sensor is capped at 18.5 psi if i remeber correctly. will be interesting to see what this car FBO with some e85 and more boost puts down.


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(#32)
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Vorsprung_CJB Vorsprung_CJB is offline
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Default 12-02-2015, 10:52 AM

To get 380 wheel with just a tune and pump gas is impressive this early after release! Did you see any obvious restrictions on the exhaust or charge side where an upgrade might help (**, CP, etc)? How did IATs look with the W/A IC?

Keeping my fingers crossed for M240i
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(#33)
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Terry @ BMS's Avatar
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Default 12-02-2015, 10:57 AM

IAT seemed OK in runs where we ran stock timing. When we use the timing control we're altering the IAT signal back to the DME so can't accurately log it currently.


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Abear Abear is offline
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Default 12-02-2015, 12:02 PM

This is really impressive, great job Terry! Has there been any advance on the timing control for the N55. I know you said you were working on not too long ago.
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(#35)
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Default 12-02-2015, 12:05 PM

For the N55 it hasn't been overly relevant as they are timed well for factory turbos. More advance doesn't add power and less drops power. In most cases.

For larger turbos without a back end flash we prefer to see them around 2 degrees less and we have the resistor trick which is basically a quick and dirty way of implementing what the JB4_B58 is doing. The difference being the JB4 control relies on CANbus to more precisely and dynamically alter the signal for the desired result.


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(#36)
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Default 12-02-2015, 10:37 PM

Can't wait for E85 testing I'll say it will hit around 415whp on e30 and jb4 ..


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(#37)
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multydrew multydrew is offline
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Default 12-02-2015, 11:02 PM

Wow so lean afr.
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(#38)
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Traf Traf is offline
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Default 12-04-2015, 05:40 AM

Won't the higher compression ratio and the fact that the engine is even more undersquared than the N54/55 hold us back in the future?

84 mm x 89.6 mm 10.2:1 for the N54/N55/S55
82 mm x 94.6 mm 11.1:1 for the B58


f*** v-bands clamp

Last edited by Traf; 12-04-2015 at 06:55 AM..
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(#39)
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Default 12-04-2015, 08:30 AM

fml and my n55


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(#40)
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Default 12-04-2015, 10:44 AM

Quote:
Originally Posted by Traf
Won't the higher compression ratio and the fact that the engine is even more undersquared than the N54/55 hold us back in the future?

84 mm x 89.6 mm 10.2:1 for the N54/N55/S55
82 mm x 94.6 mm 11.1:1 for the B58
It's hard to say. It certainly seems to rev better, probably due to (what to me) seems like a better flowing turbo. The higher CR will probably become an issue at some point. We don't know how strong the pistons are either.


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Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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(#41)
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Traf Traf is offline
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Default 12-04-2015, 02:26 PM

Quote:
Originally Posted by Terry @ BMS
It's hard to say. It certainly seems to rev better, probably due to (what to me) seems like a better flowing turbo. The higher CR will probably become an issue at some point. We don't know how strong the pistons are either.
Seems like internals are forged and it is a closed deck. Should be helluva tough engine, or at least tougher than the N54/N55 right ?


f*** v-bands clamp
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(#42)
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Default 12-05-2015, 08:40 PM

Well, Im impressed.


Garrett Gtw 6465, Supporting mods , Mhd/Jb4
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(#43)
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Default 12-06-2015, 07:50 PM

Getting excited now that this link is live:
http://burgertuning.com/B58_JB4_bmw_...nce_tuner.html
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(#44)
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Default 12-06-2015, 09:05 PM

We'll be adding more photos and info there as we go!


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Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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(#45)
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LoveTwenty LoveTwenty is offline
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Default 12-06-2015, 11:26 PM

Really wanna see log and dyno numbers of MAP2 !!!

Direct ign control?..
wow amazing..

No need to consider about flash tune..finally..
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(#46)
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Default 12-07-2015, 03:31 AM

Quote:
Originally Posted by Terry @ BMS
We'll be adding more photos and info there as we go!
Have a friend visiting LA end of month..... lol would be nice if he could swing by to pick this up
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(#47)
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ridgepug ridgepug is offline
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Default 12-08-2015, 01:27 PM

Really excited to see what this car can do FBO + E85 on stock turbos


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Default 12-08-2015, 04:21 PM

+1 ^^ Terry We need to see whats up with this Car and E85 ...


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(#49)
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Default 12-24-2015, 09:24 AM

Terry this wa obviously done on 91 pump how would you feel about the B58 being able to run stock timing on that map 1 with 93.

Knowing how advanced the modelling of the N54 is, I wouldn't feel fantastic about scaling IAT readings.
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Nniftyfour Nniftyfour is offline
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Default 12-24-2015, 12:34 PM

Quote:
Originally Posted by Nniftyfour
Terry this wa obviously done on 91 pump how would you feel about the B58 being able to run stock timing on that map 1 with 93.

Knowing how advanced the modelling of the N54 is, I wouldn't feel fantastic about scaling IAT readings.
I reread that was on 93. to myself
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