[SC_B5X]

Originally Posted by kern417

very nice. I can't wait to get started on mine.

How are you guys approaching it? Seems like a lot of boost and timing for a base map. Are you just slowly increasing the E to see how it responds?

My base map is pretty much my E30/Meth map that i've been running before the HPFP that was modified and also added calibration for the HPFP. But now i'm using E50 instead of meth. We haven't really added anymore E and i'm not sure i'm going to. I don't really know yet.

Right now i'm just screwing around with the stock turbo testing out the HPFP until my Pure 800 gets here. I'd like to shoot for stock turbo record (I think its like 501 or 505whp?) on our car before I get my Pure on.

[kern417]

Originally Posted by SC_B5X

My base map is pretty much my E30/Meth map that i've been running before the HPFP that was modified and also added calibration for the HPFP. But now i'm using E50 instead of meth. We haven't really added anymore E and i'm not sure i'm going to. I don't really know yet.

Right now i'm just screwing around with the stock turbo testing out the HPFP until my Pure 800 gets here. I'd like to shoot for stock turbo record (I think its like 501 or 505whp?) on our car before I get my Pure on.

Yeah 501whp with E30+meth. I'm in the same boat. Not hell bent on beating the record, but would love to see 500whp on stock turbo without meth. I'm pretty confident that E85 will get me there but I've had mixed feedback on whether we'll hit the hpfp limit on E85 with stock turbo. I think 20-21 psi with 18-20 degrees of timing would be nice

[SC_B5X]

Originally Posted by kern417

Yeah 501whp with E30+meth. I'm in the same boat. Not hell bent on beating the record, but would love to see 500whp on stock turbo without meth. I'm pretty confident that E85 will get me there but I've had mixed feedback on whether we'll hit the hpfp limit on E85 with stock turbo. I think 20-21 psi with 18-20 degrees of timing would be nice

Indeed it would, i've never seen anyone on here run more than 17 degrees of timing though. Might need to talk to my tuner

[neonnblack]

Your IAT looks about normal. Mine end up around 90 in colder weather. A lot of people including me end up 100f or more, temperature dependent.

[neonnblack]

ugh didn't quote correctly. That was for janea1207

[InstigatorX]

MG flasher, stage 1 e30 tune, blend is about e25. Getting low rail pressure fault code when cruising. Any ideas? Trying to burn off some of fuel so I can add regular gas.

Error happens near end where you can see target jump dramatically.

https://datazap.me/u/instigatorx/log...&solo=6-29

Thoughts? Is my blend too high?

[enemigo13]

Originally Posted by InstigatorX

MG flasher, stage 1 e30 tune, blend is about e25. Getting low rail pressure fault code when cruising. Any ideas? Trying to burn off some of fuel so I can add regular gas.

Error happens near end where you can see target jump dramatically.

https://datazap.me/u/instigatorx/log...4-15&solo=6-29

Thoughts? Is my blend too high?

why you log part throttle?

[InstigatorX]

Originally Posted by enemigo13

why you log part throttle?

I get the rail pressure error at low rpm. Was trying reproduce. WOT logs are fine.

[OzBMR]

Originally Posted by InstigatorX

MG flasher, stage 1 e30 tune, blend is about e25. Getting low rail pressure fault code when cruising. Any ideas? Trying to burn off some of fuel so I can add regular gas.

Error happens near end where you can see target jump dramatically.

https://datazap.me/u/instigatorx/log...4-15&solo=6-29

Thoughts? Is my blend too high?

Never seen anything like that before. I don't think it has anything to do with your fuel, looks more like a mapping problem.

I'd try re-flashing the car, maybe back to stock and then the tune back in again.

If still a problem go back to the tuner. If they can't sort it out switch to MHD or BM3?

[kern417]

Originally Posted by InstigatorX

I get the rail pressure error at low rpm. Was trying reproduce. WOT logs are fine.

Running E25 on an E30 tune will only cause timing issues. If you have to reduce the ethanol percentage, switch to a 93 tune. The only thing I notice is that your crusing RPM is too low. It's showing 1100-1500rpm. Keep the revs closer to 2k, especially in higher gears like 6th.

Maybe post a WOT log so we can better see how it's running. Also, try logging in sport mode with the more sensitive throttle and see if that is any different.

[InstigatorX]

Originally Posted by kern417

Running E25 on an E30 tune will only cause timing issues. If you have to reduce the ethanol percentage, switch to a 93 tune. The only thing I notice is that your crusing RPM is too low. It's showing 1100-1500rpm. Keep the revs closer to 2k, especially in higher gears like 6th.

Maybe post a WOT log so we can better see how it's running.

I was in auto mode just cruising down road at 35mph.

EDIT: if I drive in manual and keep rpm up I don't get the fault.

Here are 3 datalogs...

https://datazap.me/u/instigatorx/log-1576977223

https://datazap.me/u/instigatorx/log-1576977513

https://datazap.me/u/instigatorx/log-1576977599

Had a low rail pressure fault at very end of 3rd one after I let off throttle and was cruising again.

[SC_B5X]

Here's some more logs on my latest revision of my Wedge E50 Tune with the DE Stage 1 HPFP.

Couple timing corrections popped up on this revision, not sure why.

3rd Gear Logs:
Wedge E50 V4 3rd Gear
Wedge E50 V4 3rd Gear (2)

4th Gear Logs:
Wedge E50 V4 4th Gear
Wedge E50 V4 4th Gear (2)

[OzBMR]

Originally Posted by InstigatorX

I was in auto mode just cruising down road at 35mph.

EDIT: if I drive in manual and keep rpm up I don't get the fault.

Here are 3 datalogs...

https://datazap.me/u/instigatorx/log-1576977223

https://datazap.me/u/instigatorx/log-1576977513

https://datazap.me/u/instigatorx/log-1576977599

Had a low rail pressure fault at very end of 3rd one after I let off throttle and was cruising again.

Your target rail pressure when you have this problem, which is coming from the flashed tune, is 30.58 mpa (4435 PSI) The HPFP has a internal pressure relief valve at 25 mpa (3625 PSI) so cannot achieve the target and will go into limp mode/fault until you clear the codes.

You need to contact MG Flasher or whoever provided the tune for your car.

Originally Posted by kern417

The only thing I notice is that your crusing RPM is too low. It's showing 1100-1500rpm. Keep the revs closer to 2k, especially in higher gears like 6th.

For auto cars with ZF8 auto box cruising is normally in the 1000 - 1500 rpm range even in 6th - 8th

[OzBMR]

Originally Posted by SC_B5X

Here's some more logs on my latest revision of my Wedge E50 Tune with the DE Stage 1 HPFP.

Couple timing corrections popped up on this revision, not sure why.

3rd Gear Logs:
Wedge E50 V4 3rd Gear
Wedge E50 V4 3rd Gear (2)

4th Gear Logs:
Wedge E50 V4 4th Gear
Wedge E50 V4 4th Gear (2)

Looks good, the stock turbo seems to drop off over 6000 rpm

Are you going to need a bigger HPFP for your Pure800? You're getting a little dip at peak torque in these logs

[SC_B5X]

Originally Posted by OzBMR

Looks good, the stock turbo seems to drop off over 6000 rpm

Are you going to need a bigger HPFP for your Pure800? You're getting a little dip at peak torque in these logs

Yeah, it does seem to drop off after 6k, Steven @ Wedge is working on it seeing if we can squeeze some more out of it.

As for the HPFP, we'll see. More than likely i'll end up with the Dorch Stage 2 pump. When I bought the Stage 1 they said if I needed more fuel they'd exchange mine for a Stg 2. I might try to push the Stage 1 on the Pure800 before getting the upgrade, that way we can have some data and see how much the Stage 1 is capable of.

EDIT: What I don't understand is why ever since we increased mid range boost it has dropped off so hard up top. If you look at an old log from before I had the HPFP (E30 + Meth), it only dips down to 19PSI, not 17.

https://datazap.me/u/richmichael97/w...=0&data=5-7-24

[InstigatorX]

Originally Posted by OzBMR

Your target rail pressure when you have this problem, which is coming from the flashed tune, is 30.58 mpa (4435 PSI) The HPFP has a internal pressure relief valve at 25 mpa (3625 PSI) so cannot achieve the target and will go into limp mode/fault until your clear the codes.

You need to contact MG Flasher or whoever provided the tune for your car.

Thanks for info. I've pinged support and switched back to standard gas map. Any thoughts on what the issue is or should be addressed?

[SC_B5X]

So I did some testing tonight, and decided to do some datalogs with and without meth. I haven't really used my meth kit since going upgraded HPFP since I didn't really need it anymore, but anyways.

Here are the results (click the images to be directed to full datazap log)

3rd Gear (NO METH):

Result: At 6700 boost is only hitting 17PSI although target is 22.2PSI. Also slight timing correction, but nothing serious.

3rd Gear (WITH SPRAYING METH):

Result: At 6700 boost is now hitting 19.7PSI while targetting 22.7PSI. Zero timing corrections.

Not sure why the car isn't holding that boost with the HPFP on E50 alone, but I plan on discussing my findings with my tuner.

Mod Setup:

MHD E50 Tune by Wedge Performance
Dorch Engineering Stage 1 HPFP
VRSF Catless DP
Dual Resonator Delete
Remus Axleback
AEM V2 WMI Kit w/ Dual 755cc ProMeth Nozzles

[hari94]

Originally Posted by hari94

Because the compressor reaches his max efficiency in high rpm

With more E85 content (charge pipe injection kit needed) or with a kit methanol we can gain from AFR and timing changes,

But I'm sure that the compressor can't give much more (maybe +1-2psi),

I'm running MHD OTS maps and for the price I couldn't be happier !

it seems that was right ... > page 5 of this thread

[kern417]

Originally Posted by SC_B5X

So I did some testing tonight, and decided to do some datalogs with and without meth. I haven't really used my meth kit since going upgraded HPFP since I didn't really need it anymore, but anyways.

Here are the results (click the images to be directed to full datazap log)

3rd Gear (NO METH):

Result: At 6700 boost is only hitting 17PSI although target is 22.2PSI. Also slight timing correction, but nothing serious.

3rd Gear (WITH SPRAYING METH):

Result: At 6700 boost is now hitting 19.7PSI while targetting 22.7PSI. Zero timing corrections.

Not sure why the car isn't holding that boost with the HPFP on E50 alone, but I plan on discussing my findings with my tuner.

Mod Setup:

MHD E50 Tune by Wedge Performance
Dorch Engineering Stage 1 HPFP
VRSF Catless DP
Dual Resonator Delete
Remus Axleback
AEM V2 WMI Kit w/ Dual 755cc ProMeth Nozzles

might need to increase fuel flow or ethanol percentage to keep it spooling. Remember meth has a higher octane than E85, so technically you can always make more power with meth. It seems like the car is automatically filling up the gap now that the supporting fuel is there.

Is anything else changing with meth? IATs, AFR, etc?

Edit: didn't notice you could open the log. Looks similar except fuel trims plummet (as expected).

[J3Vr6]

I've always had this weird hang when shifting between early gears (JB4 Map 3, auto). Is that something that can be seen and the culprit deciphered with looking at a log? The hang I'm referring to is shifting at WOT and in while the car shifts, it hits what feels to me like lag. Makes my head literally rock forward b/c of it. Don't know if its throttle closure, fuel limitations, or just really long shifts.

[kern417]

BM3 Stage 1 93oct after my TU pump install.
https://datazap.me/u/kern4179/stage-1-93-tu-pump

[kern417]

Originally Posted by J3Vr6

I've always had this weird hang when shifting between early gears (JB4 Map 3, auto). Is that something that can be seen and the culprit deciphered with looking at a log? The hang I'm referring to is shifting at WOT and in while the car shifts, it hits what feels to me like lag. Makes my head literally rock forward b/c of it. Don't know if its throttle closure, fuel limitations, or just really long shifts.

Log it and we'll see.