08-06-2019, 11:59 AM | #1 |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
TuningTechFS XDI-35 HPFP full installation DIY
Hey yall!
I was able to install my new high pressure fuel pump over the weekend and wanted to share the process. I have all of the steps and tools required listed in the description, and documented throughout the process. All in all this is not hard and even going slow will take a couple of hours, if you take your time and be careful throughout. There is really only one or two places where I felt I had to be REALLY careful as to avoid any "oops" moments, but they are obvious moments. Post install, I can already feel the difference. In the last 2-3 dynos, I have felt a odd flutter in the upper RPMs including a pulse you could see in the exhaust gasses if you looked closely. Also, looking at the logs I could see the fuel rail pressure just crater. Strong 2600+lbs in the begining but as low as 950lbs under peak load which is just BAD. So post install.. I ramped it up a couple of times and it just felt different, BETTER for sure. The power ramp felt straight line linear, no flutters or hesitations whatsoever. I haven't pulled logs yet, as I want to get it on the dyno to do that right. NO MORE street logging for me, I got burned on that really really badly a couple of months ago. Never again. Also as an interesting note, I had a 100 mile drive home up through the mountains. The engine pull felt so much smoother and improved, I wanted to document what I could so reset all of my car logs, MPG when I hit the road. My car long term MPG is 24ish.. lots of mixed city and highway driving. Granted the 100 miles was 50mph+ cruising with a mountain pass, but door to door 100 miles.. 36MPG!! 36!! NEVER seen that good ever.. it could be coincidence or the refresh of the pump and fuel line, but woah!! So yeah.. this is a bigger upgrade that is for sure, and a commitment of time and budget to do it. My opinion though is it is worth 5x the cost in real benefit. The OEM pump is $1200 as is, so if you had to replace your existing pump, its not a small amount of money. This pump not only is superior but supports the higher end boost especially if you are big turbo. According to Gabe at TuningTechFS, they haven't found a turbo out there yet that can max out what this pump can do. I recommend this very very highly and cannot wait to get this back on the dyno, and then start to ratchet up my tune. This really is worth it.
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
08-06-2019, 12:35 PM | #2 |
Lieutenant Colonel
1106
Rep 1,499
Posts |
Nice! Are you running stock LPFP?
__________________
2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI). SPI Films Blog/DIY Vids |
Appreciate
0
|
08-06-2019, 12:37 PM | #3 |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
Yes.. I have heard from two (I trust) sources that the LPFP change is not only not worth it, but can introduce problems. Just what I have heard, so zero LPFP plans at this time.
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
Appreciate
0
|
08-06-2019, 12:46 PM | #4 |
Major
1475
Rep 1,286
Posts |
Thanks for all the info!
I do feel a “jerk” coupled with a bit of hesitation and unusual exhaust note at high rpms going from 2nd to 3rd gear. I wonder if it’s fuel pump not keeping up. Although my BM3 log showed no problems and I don’t think I’m making as much power as some people here. Maybe I need to re-log and check again.
__________________
2024 BMW M4 Competition XDrive - Tanzanite Blue/Kyalami Orange - AST HAS - RaceChip
|
Appreciate
0
|
08-06-2019, 12:51 PM | #5 | |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
Quote:
Check out my last dyno log run here.. look at my fuel rail just CRATER during the run to dangerously low levels. This HPFP isnt cheap (so is the OEM), but absolutely worth it in my opinion already. https://datazap.me/u/bmwdiyguy/april...whV6_5kafI4JtA
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
|
Appreciate
0
|
08-06-2019, 01:00 PM | #6 |
Lieutenant
228
Rep 301
Posts |
Outstanding job! Thank you for taking the time to do this.
Please update your impressions after you have had some more time in the car. |
Appreciate
1
BMW DIY Guy3042.00 |
08-06-2019, 03:50 PM | #7 |
Lieutenant Colonel
1106
Rep 1,499
Posts |
Yes I've been reading about stage 2 LPFP frying EKP modules so was trying to avoid that route, but most who do the XDI HPFP upgrade seem to have an upgraded LPFP as well. Good to see you realizing benefits on stock LPFP and data to back it up. Looking forward to the dyno logs. Are you going to run a richer ethanol mix and bump up the boost?
__________________
2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI). SPI Films Blog/DIY Vids |
Appreciate
1
BMW DIY Guy3042.00 |
08-06-2019, 04:21 PM | #8 | |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
Quote:
I will give this change a little bit to bake in, then will pull dynos for review from Active, to tweak the existing tune. The next two (and probably last performance) things on the radar is a methanol kit (sooner) and big turbo (later).
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
|
Appreciate
0
|
08-07-2019, 06:29 AM | #9 | |
Modder of everything I own
147
Rep 491
Posts |
Quote:
Doing more research on it though, I still want to verify that the XDI 35 can support the BW 8374 @ 650hp. Thank you for documenting your install DIY Guy, much appreciated!!
__________________
2013 BMW 335xi F30 N55 PWG/VRSF DP/ER CP/Injen CAI/AA FMIC/JB4 map 7/Fuel= E50 w/ E85:93oct/Stock LPFP & HPFP/CATuned coilovers/Megan Racing Rear Swaybar/Powerflex Rear Subframe Bushing Inserts/Dual aFe Power Mach Force Mufflers/Resonator Delete/MHD & BMS Race BEF
|
|
Appreciate
1
BMW DIY Guy3042.00 |
08-07-2019, 08:44 AM | #10 | |
Lieutenant Colonel
1106
Rep 1,499
Posts |
Yeah a meth kit is next on my list as well. Pretty much decided on the AEM 30-3300 and adding the injection filter and high flow solenoid so I'm not limited on where I can mount the tank and pump. Will probably pull the trigger when I hit 75k on the ODO (I'm at 73k now). I get to justify it by telling myself the meth kit is about the same cost as a walnut blast...LOL.
And yes you should definitely run an ethanol mix if you have good E85 around you and a tune to support it. I've been running the bm3 E30 tune and it's fire. Quote:
__________________
2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI). SPI Films Blog/DIY Vids |
|
Appreciate
1
BMW DIY Guy3042.00 |
08-07-2019, 09:15 AM | #11 | |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
Quote:
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
|
Appreciate
0
|
08-07-2019, 01:10 PM | #12 | |
Major
485
Rep 1,105
Posts |
Quote:
Its no wonder your HPFP couldn't keep up with that amount of target boost. But after seeing your log im not as concerned about my PS2 map dipping the rail pressure to 1800-1900psi! But huge thanks for making this video!!!
__________________
435i M-Sport | Pure Stage 2 Turbo | MHD Tune | XHP Stage 3 | Wagner Comp Evo 2 | MPE | Evolution Racewerks CP/DP/TIC | M-LSD | XDI-35 |
|
|
Appreciate
2
BMW DIY Guy3042.00 harkes1075.50 |
08-07-2019, 01:37 PM | #13 | |
Lieutenant Colonel
1106
Rep 1,499
Posts |
20PSI target and max 3 degrees of timing advance. Not ideal. Much better to have 17PSI and 10 degrees of timing. Also IATs skyrocket from 79F to 113F by the end of the pull. But good to know the HPFP could keep up on stock LPFP.
Quote:
__________________
2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI). SPI Films Blog/DIY Vids |
|
Appreciate
1
BMW DIY Guy3042.00 |
08-07-2019, 01:52 PM | #14 | |
Major
172
Rep 1,375
Posts |
Quote:
|
|
Appreciate
1
JaredG_F301106.00 |
08-07-2019, 02:09 PM | #15 | |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
Quote:
*sigh* No dude.. more air.
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
|
Appreciate
0
|
08-07-2019, 02:25 PM | #16 |
Second Lieutenant
212
Rep 232
Posts |
Just a side note, and it might not be the case with BMW at all but on previous cars of mine, once you change fueling mechanics (pumps/injectors/ext) the trip computer gets off. Unless you’re measuring by miles and actual added fuel to the tank measurements it might not be accurate. One car I was getting over 80mpg and another was less than 3mpg according to the cars computer.
__________________
2015 F30 335i EBII MSport
M Perf Exhaust | M Perf Brakes | M Perf LSD | CTS CP | CTS Catless DP | FMIC | BM3 Stage 2 93oct | 20" 405m | 10/15mm Spacers | KW V3’s | Vorshlag Camber Plates |
Appreciate
1
harkes1075.50 |
08-09-2019, 03:12 PM | #17 | |
Captain
1171
Rep 969
Posts |
Quote:
|
|
Appreciate
1
VAF3025.50 |
08-10-2019, 08:59 AM | #18 |
Father of Frankenfold
299
Rep 531
Posts
Drives: Yo daddy's 2014 X3 M Sport
Join Date: Jan 2017
Location: Albuquerque
|
I'll throw in my two cents worth of review, too. I've run E50 on this pump with boost at 25 psi at peak torque and tapering to 20 psi at redline. On some occasions under those conditions it would fuel cut briefly at the top of 2nd if going from a 3,000 RPM brake torquing launch. The speed at which it rips through the top of the rev range in first and second gears just starts to overwhelm its delivery rate a little bit. Not bad at all, and the XDI-60 will do better than that.
This is a modular pump with replaceable flanges and fuel inlet configurations. It's essentially a universally reconfigurable pump that can apply to nearly any Bosch based direct injection application. The pump body is o-ring sealed to a removable flange that's tailored for the specific application. It can rotate within the flange for orientation direction. There's an inlet body mounted to the pump body that can be reoriented for inlet direction and connector type. This allows them to cover the half dozen vehicle brands that they do. That and other odd bits, like the flush headed allen bolt that replaces the stock one that holds the front knock sensor in place. The modular design should allow adaptation to the B58 and even S58 platform with a new flange and the right inlet configuration. I suspect we'll be seeing 700 - 800 whp B58s and 1000+ whp S58s with aftermarket HPFPs in the future, mods permitting. Yay! All of this is brilliant, but, the same pump used in Ford applications is $1600, rather than $2000. The only difference is the flange, the inlet orientation and inlet fitting. The orientation can be changed easily and the fitting replaced for about $10. The flange costs no more to machine for the Ford versus the BMW application. The accessory hoses and fittings are of equivalent value between the two applications. A significant "BMW tax" is being imposed here, in my opinion. Most likely in large part by the fact that TTFS is the only re-seller for the BMW version of the pump. My experience with TTFS at the beginning of the year was less than stellar. It took 41 days from the time the pump was ordered to the time it was delivered, with several un-returned emails and phone calls along with phone conversations and emails filled with apologies and empty promises of mine being shipped in the next batch, next week. Only when emailing and calling to leave a voice mail cancelling my order did I get a last return phone call and promise to ship it out. Finally it arrived at the end of the week as promised in that call. I'm sure it was largely due to XDI's backlog of orders at the time, but it could certainly have been handled better. In terms of design, there is one small flaw. The pump body itself is sealed between it's OD and the flange's ID with an o-ring. Similar to how the factory HPFP is sealed within the vacuum pump body. But with the XDI, neither is sealed to the vacuum pump itself. Only the flange mating surfaces tolerance between the vacuum pump flange and the fuel pump flange allow any kind of seal, possibly allowing oil to weep. You may want to use a tiny amount of carefully applied sealant, being careful not to use excess. With all of that said, while it may seem like I'm dumping on this pump, I actually really enjoy having it on the car. It allowed me to ditch PI and my JB4 and run elevated boost levels with cleanly controlled DME PI for factory smoothness and big power. It certainly delivers, I just wish it did so at lower than earlier adopter prices with German luxury car owner tax added on top of that. Hopefully one of the other vendors who've been teasing at offering a pump will have something on the market soon to drive down prices. In the meantime, if you're looking to stay DI and make big power, these pumps will do that.
__________________
F25 X3 35i M Sport | Frankenfold 6662 | VRSF Race IC | FTP CP | BM3 tuned | XDI-35 HPFP | Stage 2 LPFP | Ethanol mixed | WMI | Oil cooler | xHP | X5/550i brakes
|
Appreciate
2
ChrisFulton227.50 harkes1075.50 |
08-13-2019, 12:49 PM | #19 |
Brigadier General
3042
Rep 3,010
Posts
Drives: 2019 M2 Competition
Join Date: Jan 2017
Location: Maple Valley WA
|
"In terms of design, there is one small flaw. The pump body itself is sealed between it's OD and the flange's ID with an o-ring. Similar to how the factory HPFP is sealed within the vacuum pump body. But with the XDI, neither is sealed to the vacuum pump itself. Only the flange mating surfaces tolerance between the vacuum pump flange and the fuel pump flange allow any kind of seal, possibly allowing oil to weep. You may want to use a tiny amount of carefully applied sealant, being careful not to use excess."
Actually I had my 25 year master mechanic buddy over my shoulder the entire time doing the install, and he commented on that as well. (Ironically its why I use plurals sometimes during the video, since its me and my buddy supervising! lol) He suggested and added a VERY thin coat of some sealant, not sure what, against that flange to the body to just makes sure. I cannot wait to get my car back to the dyno and some updated tunes after that to really start to draw on what this pump can do.
__________________
Check out my BMW DIY Channel on YouTube! E, F and G series projects from Active Autowerke, Bimmertech, Kies Motorsports, AvinUSA, Karbonius Composites and more!
** YouTube BMW DIY Guy ** 'Nimona' G87 M2 Build Thread 'Lillith' F87 M2 Competition Build Thread |
Appreciate
0
|
08-13-2019, 02:08 PM | #20 | |
Gettin It Figured Out
1820
Rep 2,669
Posts |
Quote:
I felt This ^^ to be the case from the beginning which is why I’ve taken a “wait and see” approach. 100% certain when competitors develop their own variations, XDI/TTFS will have a “sale” and/or price drop. .
__________________
|
|
Appreciate
0
|
08-13-2019, 08:47 PM | #21 |
Private
26
Rep 75
Posts |
gonna try and attempt this install this weekend on my f30 n55. .. looking forward to checking it out! ill let you know how it turns out.. thanks for the video!
|
Appreciate
1
BMW DIY Guy3042.00 |
09-14-2019, 03:55 PM | #22 |
Driver
199
Rep 516
Posts |
|
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
hpfp, tuningtechfs, xdi, xdi-35 |
|
|