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Default Dyno results on my 135i - 03-18-2018, 04:48 PM

It's been a long time coming, but my 135i is finally putting down some solid numbers. Currently have the Pure Turbos Stage 2 kit, BMS charge pipe with 10mm nozzle meth kit, Injen intake, M4 flywheel swap to eliminate the false misfire issues with the stock dual mass DCT flywheel, JB4, larger intercooler, BMS oil cooler valve and Toyo Proxes R888R Tires in the rear. The car currently has 95K on it and is running great! Thanks, Terry!
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2012 135i M-Sport, JB4 with Meth, Pure Turbos Stage 2.
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jturboawd jturboawd is offline
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Default 03-18-2018, 07:12 PM

What boost


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7
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Default 03-18-2018, 07:14 PM

Congrats on solving the misfires Kenny!

I was behind the wheel for his runs and took them to around 6500rpm IIRC. Dyno wheel speed factory might have been off a couple percent.

Boost was 23-24psi, timing set conservatively as he runs 91 octane often.
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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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Default 03-18-2018, 07:27 PM

This is a fairly normal timing behavior for this boost level on the PS2.

Last time we tested this car it only made 440whp. So it's been a slow progress to get its power up. Maybe it's the crappy Injen intake. Car also has ~90k miles.

Our 2011 PS2 135i makes ~500whp at the same boost level. But has a lot less miles and instead of E85 we're using port injection and a 50% E85 mix.


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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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jturboawd jturboawd is offline
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Default 03-18-2018, 08:01 PM

I hit 495 on ps2 max at 25 psi. Hitting nearly 600 with a stage 3 at 23 psi. I think 500 is a good goal for the ps2. Considering how easily it’s tuned and the plug and play nature I think it’s a heck of a deal. I see random 550 plus post with ps2 on n55 but can only really know my own experience with it.


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7
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Default 03-18-2018, 10:21 PM

In April of 2015 I ran a pretty aggressive ps2 boost curve on low 6* timing and made good power.

http://www.n54tech.com/forums/showthread.php?t=29812


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SeanWRT SeanWRT is offline
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Default 03-19-2018, 06:13 AM

Quote:
Originally Posted by cnm135i
Looking solid! A little surprised to see such inconsistent timing - not 100% meth? These results make me wonder how some people achieve 550whp on the PS2...
550whp is too ambitious for PS2 even on dynojet. As you already knew, Wangli put down 460whp with 100% meth + 95OCT (on octane booster), doing 25psi and timing capped out at 12. I was there and did dyno same day. Ethanol in his case won't do much if anything because timing is already capped out. RWD PWG may be able to do 500whp maximum. EWG probably has 20 more in it though.

550 is the number of M4 stock turbo on meth maxed out, which is slightly quicker than 135i/235i/m2 PS2 maxed out, while being a heavier car. That also means N55 dont have 550whp.
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Default 03-19-2018, 07:51 AM

Quote:
Originally Posted by cnm135i
Max power at 5700 - its a bit sad really. What to do with the remaining 1300rpm

Which is what annoy me a bit about the map3 boost curve. I'd really like if boost peaked at 6500rpm. I tried the custom thing in map6 with meth safety=4 but I cannot find the logic behind it.
Not really, that was right when the PS2 turbo came out. Fighting tons of misfire issues up top. Also the DCT likes to autoshift around 6100-6200 on the dyno for some reason. Iím 100% sure my car now vs then is making more power on the same boost. That 2015 run was done on a xless pipe intake meth and ps2 turbo.

No turbo Inlet, choked up stock exhaust (rear section of u.s. 135i necks down to 2.5Ē) no s55 flywheel and lots of development has been done on the tuning side since then.


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Default 03-19-2018, 07:57 AM

Quote:
Originally Posted by SeanWRT
550whp is too ambitious for PS2 even on dynojet. As you already knew, Wangli put down 460whp with 100% meth + 95OCT (on octane booster), doing 25psi and timing capped out at 12. I was there and did dyno same day. Ethanol in his case won't do much if anything because timing is already capped out. RWD PWG may be able to do 500whp maximum. EWG probably has 20 more in it though.

550 is the number of M4 stock turbo on meth maxed out, which is slightly quicker than 135i/235i/m2 PS2 maxed out, while being a heavier car. That also means N55 dont have 550whp.
S55 really isnít a good motor to compare the n55 to. It has twin turbos, twin water to air intercoolers and a twin hpfp setup and a much better dct system to boot! It sounds like you are comparing peak power though with the s55 vs power at redline. Not sure what was up with your buddies car but 460 whp is what most achieve on 18-19 psi with decent timing.


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jturboawd jturboawd is offline
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Default 03-19-2018, 08:15 AM

IDK newguy, i barely put down 495 maxing out my pure. Solid good engine and all supporting mods. It was fast as hell dont get me wrong, but those where the numbers. This could just be a environment/dyno thing with so many variables. I am at sea level, high humidity, hot weather typically.

I have the m4 intercooler and put down about 600 at 22 psi. If you look at the m4 numbers they are putting down CRAZY numbers but at really high boost. Im a little scared to push past 600 whp for fear of boom.


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7
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Default 03-19-2018, 08:48 AM

Quote:
Originally Posted by jturboawd
IDK newguy, i barely put down 495 maxing out my pure. Solid good engine and all supporting mods. It was fast as hell dont get me wrong, but those where the numbers. This could just be a environment/dyno thing with so many variables. I am at sea level, high humidity, hot weather typically.

I have the m4 intercooler and put down about 600 at 22 psi. If you look at the m4 numbers they are putting down CRAZY numbers but at really high boost. Im a little scared to push past 600 whp for fear of boom.
I’m sure weather and location play a part with the difference in results but there are plenty pwg cars achieveing 500+ whp on dynojets using the ps2 turbo. Last time I had my car on the dyno i tested 15psi to redline on e30 with no meth. Targeting 11* timing it made 408whp again on a measly 15psi. 460 on 25psi doesn’t add up to me. I will Get my car back on the dyno soon and share some results. I’ve been doing a lot of flash only tuning and am curious what it’s doing on the daily 20-21psi map I’ve been running. I agree on the high Boost stuff with the s55, it seems the n55 gets upset once you start going in the 24+ psi range specifically the dct n55’s...Still tuning hurdles with this platform IMO no matter the setup


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Last edited by Newguy123; 03-19-2018 at 09:32 AM..
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Default 03-19-2018, 09:12 AM

Quote:
Originally Posted by cnm135i
495whp/655nm on this run. 93 + 100% meth. I'd really like another crack at the dyno with more timing

Sorry for hijacking your thread Lavey
Unless it's also a dynojet the number are not comparable. But the PS2 on the E series N55 is normally good for around 500whp on a dynojet. We've made more in testing with more aggressive tuning but not everyone is able to get away with aggressive tuning on it.


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jturboawd jturboawd is offline
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Default 03-19-2018, 11:35 AM

i dont think the n55 getting upset is a 25psi problem. it may be a power issue though, time will tell. Im to chicken s*** or just unwilling to do on my daily. I dynod at 600 dynojet at 22 psi, which lines up with speedtechs 630 wheel at 23 (plus or minus). I have map 6 3-4 using dct up to 25 psi but its scary in more ways than one.

I have one of the only finished pwg speedtech kits, but there are others on the street and getting dialed in. Just a matter of time until the speedtech or bigboost start to really find the limit. Jeff is hitting high boost on the 8XXX seriers EFR but I think he is at drivetrain limits. My SSP's are holding so far. Someone with deeper pockets or more time on a toy will push the n55 to the limits. The S55 numbers make me want to crank it up. Honestly though I think the 7670 might be close to its limits at 25psi which means my kit is likely a 600-650 whp kit on a dynojet. maybe with nitro or nos could push it, but thats not in my cards. ill roll 600-650 until something breaks

I was able to run a friends e82 top mount n54 at 26 psi and got a slight pull on him multiple runs. I think we were pretty even, my pull was trans related as i think he is likely a good 50hp more than me, just in a manual car. DCT is mean from a roll.


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7
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Default 03-19-2018, 11:41 AM

Yeah youíre right I should have stated more of a Power limitation vs PSI... anyways thatís awesome, n55 finally starting to get some respect!


Quote:
Originally Posted by jturboawd
i dont think the n55 getting upset is a 25psi problem. it may be a power issue though, time will tell. Im to chicken s*** or just unwilling to do on my daily. I dynod at 600 dynojet at 22 psi, which lines up with speedtechs 630 wheel at 23 (plus or minus). I have map 6 3-4 using dct up to 25 psi but its scary in more ways than one.

I have one of the only finished pwg speedtech kits, but there are others on the street and getting dialed in. Just a matter of time until the speedtech or bigboost start to really find the limit. Jeff is hitting high boost on the 8XXX seriers EFR but I think he is at drivetrain limits. My SSP's are holding so far. Someone with deeper pockets or more time on a toy will push the n55 to the limits. The S55 numbers make me want to crank it up. Honestly though I think the 7670 might be close to its limits at 25psi which means my kit is likely a 600-650 whp kit on a dynojet. maybe with nitro or nos could push it, but thats not in my cards. ill roll 600-650 until something breaks

I was able to run a friends e82 top mount n54 at 26 psi and got a slight pull on him multiple runs. I think we were pretty even, my pull was trans related as i think he is likely a good 50hp more than me, just in a manual car. DCT is mean from a roll.


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jturboawd jturboawd is offline
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Default 03-19-2018, 02:17 PM

Still some missing links on the n55. I still think the turbofolds the limiting factor and why the ps2 will have a lower limit. We need to blow up more n55s to compare with s55. If we start seeing regular 650 whp on stage 3s then I would say it would point to turbofold or just turbo limits on the pure. I’m going to get some good 25 psi runs and dragy 60-130 to post to show the amazing timing on this kit.


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Default 03-19-2018, 03:15 PM

Quote:
Originally Posted by jturboawd
i dont think the n55 getting upset is a 25psi problem. it may be a power issue though, time will tell. Im to chicken s*** or just unwilling to do on my daily. I dynod at 600 dynojet at 22 psi, which lines up with speedtechs 630 wheel at 23 (plus or minus). I have map 6 3-4 using dct up to 25 psi but its scary in more ways than one.

I have one of the only finished pwg speedtech kits, but there are others on the street and getting dialed in. Just a matter of time until the speedtech or bigboost start to really find the limit. Jeff is hitting high boost on the 8XXX seriers EFR but I think he is at drivetrain limits. My SSP's are holding so far. Someone with deeper pockets or more time on a toy will push the n55 to the limits. The S55 numbers make me want to crank it up. Honestly though I think the 7670 might be close to its limits at 25psi which means my kit is likely a 600-650 whp kit on a dynojet. maybe with nitro or nos could push it, but thats not in my cards. ill roll 600-650 until something breaks

I was able to run a friends e82 top mount n54 at 26 psi and got a slight pull on him multiple runs. I think we were pretty even, my pull was trans related as i think he is likely a good 50hp more than me, just in a manual car. DCT is mean from a roll.
Very nice result, I wonder why my doc race 6266 only got 500whp on 5th gear 1.27:1 ratio if it matters, was on ~21psi. some say single scroll but I dont think it matters after spooling. compare to other 6266 on pump they get around 550whp on N54. I don't run Meth, had stock spark plugs too.



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Default 03-19-2018, 08:19 PM

Quote:
Originally Posted by jturboawd
Still some missing links on the n55. I still think the turbofolds the limiting factor and why the ps2 will have a lower limit. We need to blow up more n55s to compare with s55. If we start seeing regular 650 whp on stage 3s then I would say it would point to turbofold or just turbo limits on the pure. Iím going to get some good 25 psi runs and dragy 60-130 to post to show the amazing timing on this kit.
Do you have a dyno and logs I can check out posted anywhere?


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SeanWRT SeanWRT is offline
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Default 03-19-2018, 11:59 PM

Nothing is wrong with my buddy that day. He got consistent 7s from a couple 100-200kph the day of dyno (2017 winter). On the same setup he broke world record with 11.11@125mph in early 2017. The same dyno reads 340whp from a stock M2 on 93OCT (just about right) and 414whp from a FBO M2 on STG1 turbo on 93OCT.

See Dyno sheets here.
http://f87.bimmerpost.com/forums/sho....php?t=1454381

Just the fact N55 doesn't make much power. Just the fact there're plenty of happy reading dynojets out there and vendor/users happen to love to report the numbers from them.

Quote:
Originally Posted by Newguy123
S55 really isnít a good motor to compare the n55 to. It has twin turbos, twin water to air intercoolers and a twin hpfp setup and a much better dct system to boot! It sounds like you are comparing peak power though with the s55 vs power at redline. Not sure what was up with your buddies car but 460 whp is what most achieve on 18-19 psi with decent timing.
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