|
|
|
08-04-2019, 09:28 PM | #1 |
Private
24
Rep 83
Posts |
N55 PWG Pure S2 Preparations
The time has come to go fast, very very fast!
My mod list today is: JB4 MHD BEF Cobb Catted DP VRSF Intercooler BMS Intake CP DV+ VRSF TIC Along with the Pure S2 kit I am installing: Pure Inlet N20 TMAP VRSF Cattless DP N20 TMAP BMS Meth Kit I have a few questions before I have the parts installed, hoping a few of you can set me in the right direction.
Thanks for any recommendations you can give! Last edited by TurboTom; 08-04-2019 at 10:02 PM.. |
08-05-2019, 10:48 AM | #2 |
First Lieutenant
187
Rep 327
Posts |
Replacing the oil lines makes the install easier and couldn't hurt depending on if there is any build up in the old lines.
A stage 2 LPFP is recommend if you want to fully utilize the turbo. When I asked this question I was told 93 octane pump and an in-line would yield me high mid to high 400whp. If you want to be high 400-500+ you need a stage 2 pump. Boost juice makes a 50/50 blend and is the easiest to get your hands on if you don't have a M1 methanol supplier in your area. Be very gentle when removing the wastegate actuator and rod assembly from your current turbo to transfer it over. The rod nut broke off on mine and I had to get a stainless 6x80mm bolt and coupler, along with a new nut to mend it or wait several weeks for a new one from Japan. Unlike the N54 you can't buy N55 wastegates easily. |
Appreciate
1
TurboTom23.50 |
08-05-2019, 11:08 AM | #3 | |
Lieutenant
348
Rep 573
Posts |
Quote:
I posted a thread a ways down in this forum about b58's HPFP being a usable upgrade for us n55 guys. You can pick them up for 200$ish bucks on car-part.com and they flow 17% better than ours, which should be enough for big power. You have to make slight modification for it to fit, I think I have the link in my thread.
__________________
2011 Space Grey 135i DCT:
Pure Stage 2, Fuel-it Stage 2 LPFP, ST XTA Coilovers, Berk Street Axle Back, MHD Stage 2+, VRSF Catless DP, VRSF 5" FMIC, VRSF LCP, BMS UCP, M3 FSB, e92 M3 Drivers Seat. |
|
Appreciate
1
TurboTom23.50 |
08-05-2019, 07:08 PM | #4 | ||
Private
24
Rep 83
Posts |
Quote:
Thanks for the heads up on the actuator, I'll keep an eye out for it. Quote:
|
||
Appreciate
0
|
08-06-2019, 12:39 PM | #5 |
Captain
670
Rep 754
Posts |
If you plan on going over 480whp (roughly 18-19psi) at redline (this usually requires E85) then you will need an M4 flywheel and SSP clutch packs.
My honest opinion. Ditch JB4+BEF and go flash only with Wedge Performance. Smoother, faster, more consistent, 10000x easier to dial the car in. If you want to run meth get an external controller. Single CM5 nozzle is fine. Ken himself has a PS2 135i and spent a lot of time developing the platform, also Houtan & Sbrach (forum members) tune for Wedge and both have 135i's with PS2 turbos/ know these cars inside and out.
__________________
2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold 2006 Z4 M Roadster Black/Black-Sold 2021 M2 Competition DCT Hockenheim Silver |
08-06-2019, 02:44 PM | #6 | |
Private
24
Rep 83
Posts |
Quote:
I've been thinking about going flash only. My concern is that the guys at Burger are the only ones consistently reading logs and giving input on them. I'd rather sacrifice a bit of smoothness in the car for consistent troubleshooting help. If I had a good contact who would read MHD logs for me when I'm having an issue I would go straight for it with MHD only. Looks like for now I need to keep it at or under 18psi at redline, while I get everything hammered out with the turbo and recover from the heart attack inducing dent in my bank account. Do you think I can run the OEM fuel pumps at that power level? I don't intend to run ethanol mixes but I would supplement with meth for octane. |
|
Appreciate
0
|
08-06-2019, 02:53 PM | #7 | ||
Captain
670
Rep 754
Posts |
Quote:
You can always send logs to your tuner. They don't just provide one tune and done they also provide great and constant support/revisions to dial in the car. There's literally no reason to run a JB4 on these cars unless you're running an external wastegate with a single turbo kit. And that's coming from someone who had JB4+BEF. I would upgrade the stock fuel pump to a stage 2 lpfp with a bucket. It'll provide extra safety for the HPFP and allow you to run more boost/timing safely. You'll have to dial down the car down quite a bit in the lower rpm's with the stock lpfp.
__________________
2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold 2006 Z4 M Roadster Black/Black-Sold 2021 M2 Competition DCT Hockenheim Silver |
||
Appreciate
0
|
08-06-2019, 03:07 PM | #8 | |
Private
24
Rep 83
Posts |
Quote:
Thanks again for the responses. |
|
Appreciate
0
|
08-06-2019, 03:49 PM | #9 | ||
Captain
670
Rep 754
Posts |
Quote:
__________________
2006 Z4 M Roadster Black/Imola Red, FBO VF-Engineering, e85 Flex Fuel-Sold
2012 BMW 135i N55 DCT Alpine White/Coral Red, FBO, TBI, Full e85, JB4 BEF-Sold 2006 Z4 M Roadster Black/Black-Sold 2021 M2 Competition DCT Hockenheim Silver |
||
Appreciate
0
|
08-07-2019, 09:58 AM | #10 | |
Lieutenant
348
Rep 573
Posts |
Quote:
Matticus recently went pure s1, even on stage one he had to go aftermarket HPFP from what I remember. The b58 hpfp seems like a no-brainer to me, that's what I'll be running when I go stage 2 in January. I think there are b58's running near 450whp fbo with meth, that pump seems legit, just saw a new supra throw 407whp on the stock pump with tune only (ThatRacingChannel on Youtube). The B58 is so damn good that I'm actually thinking of changing chassis.
__________________
2011 Space Grey 135i DCT:
Pure Stage 2, Fuel-it Stage 2 LPFP, ST XTA Coilovers, Berk Street Axle Back, MHD Stage 2+, VRSF Catless DP, VRSF 5" FMIC, VRSF LCP, BMS UCP, M3 FSB, e92 M3 Drivers Seat. |
|
Appreciate
0
|
08-08-2019, 01:48 PM | #11 |
No Cop No Stop
68
Rep 160
Posts |
I'm also running Pure Stage 1, and have the Fuel It stage 2 LPFP. I personally wouldn't touch a turbo upgrade without fueling mods. I ultimately want to upgrade to a bigger turbo and run at 500+ whp, but I want to pull the trigger on PI at the same time and go 100% e85.
__________________
Current Garage!
2012 BMW 135i - 6MT w/ OEM 550i clutch & MFactory LWFW, Pure Stage 1, MFactory LSD, VRSF Catless Downpipe, JB4 w/ MHD BEF |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|