[IMS-340C]

You went from 8.8 to 7.6 just by using E35 and a tune with no other mods ?

Originally Posted by theone1973

Yes mate !

7,65 is my best with this map ( costum tune E35 ). 93/98 fuel was 8,80 with this tuner.

I did two pulls after each other couple days ago, I hit almost same time twice 7,80 and 7,82. It was like 25 deg hot..

I have to drive 10 km to find "my sort" to test and its the opposite direction where I use to drive.. I don't do it often.

I let you know nest time when I feel for it

[theone1973]

Originally Posted by IMS-340MP

You went from 8.8 to 7.6 just by using E35 and a tune with no other mods ?

Yes sir !

I have costume tune. We did 10 versions of 93/98 octane. Timing and corrections was bad. After that we did ethanol map..I have got 10 versions and I think we are close to done. I sent in last log yesterday.

With supra pump and 93/98 I did not gain anything..it was just the same as standard pump. Then I fitted hpfp and start E10..E15..E20. Around E20 I notice a lot more power..I have logg in 3d gear but now its to much torque. I logg only in 4th now. I remember OZBMR told me when reaching E30 the magic happens

[IMS-340C]

Nice I will sure look into finding Ethanol here.

All pumps are HPFP including the Supra pump they just varies in pressure and flow so which HPFP are you using now I am confused ?

Also most of us log in 4th gear anyway so no worries.

Originally Posted by theone1973

Yes sir !

I have costume tune. We did 10 versions of 93/98 octane. Timing and corrections was bad. After that we did ethanol map..I have got 10 versions and I think we are close to done. I sent in last log yesterday.

With supra pump and 93/98 I did not gain anything..it was just the same as standard pump. Then I fitted hpfp and start E10..E15..E20. Around E20 I notice a lot more power..I have logg in 3d gear but now its to much torque. I logg only in 4th now. I remember OZBMR told me when reaching E30 the magic happens

[theone1973]

Originally Posted by IMS-340MP

Nice I will sure look into finding Ethanol here.

All pumps are HPFP including the Supra pump they just varies in pressure and flow so which HPFP are you using now I am confused ?

Also most of us log in 4th gear anyway so no worries.

There are only one supra pump 8631642 BMW part nr.

Dorsch is stage 1 and 2. I have seen one pics of flow but cant remember...

[IMS-340C]

I mean which pump are you using now with the E35 setup ?

Originally Posted by theone1973

There are only one supra pump 8631642 BMW part nr.

Dorsch is stage 1 and 2. I have seen one pics of flow but cant remember...

[theone1973]

Originally Posted by IMS-340MP

I mean which pump are you using now with the E35 setup ?

I have the BMW / Supra pump 8631642.

[Solid67]

Originally Posted by AleksanderSuave

is that based on F30? I have an F22, which is only 13.7 gallon capacity.

I can bump the e85 up to 4.5 gallons and do the remainder with 93 octane and try a fresh pull after. I fill up at the same gas station, and its a speedway (one of the largest chains in the US) so I expect them to at least be consistent.

I will definitely try the ethanol tester.

Lol if you read my signature you would see I have a 2019 M240i xDrive, so yes, its for a F22.

[AleksanderSuave]

Originally Posted by Solid67

Lol if you read my signature you would see I have a 2019 M240i xDrive, so yes, its for a F22.

sorry about that, I was on mobile when I responded, I dont believe I saw it then.

I will definitely add more e85 and respond back with a fresh log

[AleksanderSuave]

Originally Posted by OzBMR

Based on your ignition timing it looks closer to E20 you currently have.

Try adding 1 gallon of E85 per 5 gallons in your tank current E22 mix and I think you'll end up somewhere between E30 - E34

You'll notice a big difference in how it goes then

Fresh log. Added 2.75 gallons of e85 to the current mix, flashed Stage 2+ tune to reset adaptations. in Sport+ with manual shifting. Definitely felt like a better pull today but its also a bit hotter outside.

https://datazap.me/u/aleksandersuave...og=0&data=3-22

[yokata]

Originally Posted by AleksanderSuave

Fresh log. Added 2.75 gallons of e85 to the current mix, flashed Stage 2+ tune to reset adaptations. in Sport+ with manual shifting. Definitely felt like a better pull today but its also a bit hotter outside.

https://datazap.me/u/aleksandersuave...og=0&data=3-22

You cant hit target in top end ,thats some horses down

[AleksanderSuave]

Originally Posted by yokata

You cant hit target in top end ,thats some horses down

Any idea whats happening there?

Im also trying to figure out whats happening around 3000 rpm that drops. Pretty sure this was there in my last log too.

[yokata]

Originally Posted by AleksanderSuave

Any idea whats happening there?

Im also trying to figure out whats happening around 3000 rpm that drops. Pretty sure this was there in my last log too.

Yeah you need bigger turbo About that drop idk you run ots or custom map?

[AleksanderSuave]

Originally Posted by yokata

Yeah you need bigger turbo About that drop idk you run ots or custom map?

MHD Stage 2+ OTS

Was thinking about PureTurbo800

[yokata]

Originally Posted by AleksanderSuave

MHD Stage 2+ OTS

Was thinking about PureTurbo800

Better bro we discuss this with other guys ,there is already few broken stock turbos with around 22psi boost.Im running around 24psi now with vt gc turbo on 100ron only and vargas told me its ok with around 32psi so have room for improvement ,E ,meth , etc...

[AleksanderSuave]

Originally Posted by yokata

Better bro we discuss this with other guys ,there is already few broken stock turbos with around 22psi boost.Im running around 24psi now with vt gc turbo on 100ron only and vargas told me its ok with around 32psi so have room for improvement ,E ,meth , etc...

Yeah I thought I was ok as is it is on stock turbo. wasnt planning on pureturbos upgrade for a while.

[OzBMR]

Originally Posted by AleksanderSuave

Fresh log. Added 2.75 gallons of e85 to the current mix, flashed Stage 2+ tune to reset adaptations. in Sport+ with manual shifting. Definitely felt like a better pull today but its also a bit hotter outside.

https://datazap.me/u/aleksandersuave...og=0&data=3-22

The additional ethanol definitely helped timing. I think you could still add more ethanol, your rail pressure is still rock solid at 2900 PSI with no dips. More ethanol will help timing up top where the turbo is blowing hotter air. Currently you're only getting to 14 degrees of timing, which is low for ethanol in these cars.

Ignore the power and torque numbers in the attached Virtual Dyno chart, I haven't adjusted for ambient conditions, your specific weight etc, it's the delta that's important. E20'ish to E30'ish

You may also want to try the non-HPFP MHD Stage 2 E30 map, less boost, but more timing you may get a similar result? You've bought the Stage 2 E30 maps so no harm in comparing.

The dip at 2800 - 3400 RPM is due to the OTS map load targeting and limits. You should send your log to MHD for their info and they may tweak the OTS map for the next revision.

[AleksanderSuave]

Originally Posted by OzBMR

The additional ethanol definitely helped timing. I think you could still add more ethanol, your rail pressure is still rock solid at 2900 PSI with no dips. More ethanol will help timing up top where the turbo is blowing hotter air. Currently you're only getting to 14 degrees of timing, which is low for ethanol in these cars.

Ignore the power and torque numbers in the attached Virtual Dyno chart, I haven't adjusted for ambient conditions, your specific weight etc, it's the delta that's important. E20'ish to E30'ish

You may also want to try the non-HPFP MHD Stage 2 E30 map, less boost, but more timing you may get a similar result? You've bought the Stage 2 E30 maps so no harm in comparing.

The dip at 2800 - 3400 RPM is due to the OTS map load targeting and limits. You should send your log to MHD for their info and they may tweak the OTS map for the next revision.

So currently I’m sitting at approx. 6.35 gallons of e85 (3.6 originally and added 2.75 today). Should I basically be at about 50/50 e85 and 93 octane if I’m using this station? ( waiting on the tester kit to ship) I did see the sign that e85 “standard” in Michigan could be as low as e51, and the 93 is “up to” 10% ethanol.

I can top off and add more e85 and do one more run on this map then flash the stage 2 e30 map and log a run with that to compare.

[OzBMR]

Originally Posted by AleksanderSuave

So currently I’m sitting at approx. 6.35 gallons of e85 (3.6 originally and added 2.75 today). Should I basically be at about 50/50 e85 and 93 octane if I’m using this station? ( waiting on the tester kit to ship) I did see the sign that e85 “standard” in Michigan could be as low as e51, and the 93 is “up to” 10% ethanol.

I can top off and add more e85 and do one more run on this map then flash the stage 2 e30 map and log a run with that to compare.

Seems like the E85 has a lower ethanol % at your station currently.

When the oil price is low ethanol content may drop towards the lower end of the allowable range so the gas station/fuel company makes more margin.

Sounds like a plan, interested to see your results.

[AleksanderSuave]

Originally Posted by OzBMR

Seems like the E85 has a lower ethanol % at your station currently.

When the oil price is low ethanol content may drop towards the lower end of the allowable range so the gas station/fuel company makes more margin.

Sounds like a plan, interested to see your results.

would B58tu1 spark plugs make a difference at this point?

[OzBMR]

Originally Posted by AleksanderSuave

would B58tu1 spark plugs make a difference at this point?

What's in there now and how many miles?

The only plugs I'd recommend are NGK 94201 SILZKGR8B8S. There's a good discussion here https://f30.bimmerpost.com/forums/sh....php?t=1682609

In the photos I posted there comparing the stock Champion to NGK you can see the insulator on the core of the NGK is thicker and more encompassing, which should make it a colder plug and make the fuel mix less susceptible to pre-ignition

[AleksanderSuave]

Originally Posted by OzBMR

What's in there now and how many miles?

The only plugs I'd recommend are NGK 94201 SILZKGR8B8S. There's a good discussion here https://f30.bimmerpost.com/forums/sh....php?t=1682609

In the photos I posted there comparing the stock Champion to NGK you can see the insulator on the core of the NGK is thicker and more encompassing, which should make it a colder plug and make the fuel mix less susceptible to pre-ignition

26.5k miles stock plugs, but previous owner ran dinan V1 piggyback for who knows how long on the car.

https://datazap.me/u/aleksandersuave...og=0&data=3-22

added 2.89 gallons of e85 just now, its a full tank or I would have added more. flashed again then fresh 4th gear pull. Had to let off towards the end as I was getting close to my sub and cars were popping out.

Thats a total of 5.64 gallons of e85 added today. Looks like the previous map limit didnt kick in until after 3000 RPM now. Looks like I'm still missing boost targets after 5000 rpm.

will try flashing the stage 2 e30 map tomorrow and give it another run.

I wonder if Stage 2+ is more optimized towards the Dorch/XDI fuel pump, rather than the Supra pump?

[OzBMR]

Originally Posted by AleksanderSuave

26.5k miles stock plugs, but previous owner ran dinan V1 piggyback for who knows how long on the car.

https://datazap.me/u/aleksandersuave...og=0&data=3-22

added 2.89 gallons of e85 just now, its a full tank or I would have added more. flashed again then fresh 4th gear pull. Had to let off towards the end as I was getting close to my sub and cars were popping out.

Thats a total of 5.64 gallons of e85 added today. Looks like the previous map limit didnt kick in until after 3000 RPM now. Looks like I'm still missing boost targets after 5000 rpm.

will try flashing the stage 2 e30 map tomorrow and give it another run.

I wonder if Stage 2+ is more optimized towards the Dorch/XDI fuel pump, rather than the Supra pump?

You're now at optimal ethanol

Timing looks perfect, 14 degrees all cylinders by 5700 RPM and 15.5 by 6700 RPM.

It's interesting to see how with increased ignition timing, from increased octane and ethanol cooling, the car needed less boost to hit the load target and made more torque.

You have xHP stage 3 flashed? Torque limiters removed?

To me looks like there's a torque/load limiter kicking in around 5000 RPM, your power peaks very early about 5000 RPM, should be about 5800 RPM and about 500 WHP.

Between 3000 and 5000 RPM it's a rocket.

Load/boost targets are just what the map asks for and isn't necessarily what the car will hit, especially up top the stock turbo is never going to hit 190+ load or 22 PSI, just runs out of puff.

Edit: order a set of the 94201 NGK's as 26.5K miles on stock plugs is enough