[Newguy123]

Well wider isn't always better, In a lot of cases it can slow you down. Your contact patch doesn't get any better with a wider tire on the same size rim. Increase the width of the rim along with a wider tire but try not to decrease the height of the sidewall for best traction. You slam the car down low you get much worse traction in most scenarios. if your car is breaking loose at 12psi it's time to think about getting that power down to the ground. I was able to break loose in third with stock run flats in the right conditions. After just Michelin pilot super sports size wider front & rear I can now hit it in second and just rip at 19psi when limited before at 16. My first gear was limited at 10psi now it's at 15 and slightly spins but still pulls WAY harder than what it did at 10psi.My Point is the difference is a couple car lengths when you can put all your power down sooner vs limiting it

[M-terkait]

Originally Posted by 1cleann55

I have 265 RE11 on the back still spin lol I'm trying R888 next.

R888 are too noisy i use them on 4 corners its nearly no slip all grip in corners in the first 2 months of use but after 5-6months (now) it doesn't grip like before but it defenitly still better than stock runflat atleast 3-4times

[hetzle]

Originally Posted by Darkhold

I dont understand i have 8 speed gearbox with shorter gears. In 1st it makes 12 psi, in 2nd 15 psi, in 3rd 18 psi. As of 4th it makes 20 psi.

I have 245/35-18 on the rears (michelin supersport) and no grip issues at all. I can do 3.9 0-60 all day long maybe the chassis of the F20 is more refined and the short gears of the gearbox help not making too much boost in first 2 gears.

Because Supersports>Federals by a HUGE margin... they're honestly a joke in comparison to PSS. The performance and longevity per dollar offered by Michelin PSS is so ridiculous that there is no reason to buy anything else at this point. I have no clue how they managed to make such a grippy tire wear so well but hey, I'll take it.

[PeterPure]

I should have fuelit.biz f series stage2 lpfp upgrade installed end of the month together with some ngk spark plugs and some other stuff. I wonder how she will do on 60% e85 with dual meth bungs (cm7 + cm5). I guess i am prepared when Jesse finishes his stage2 pure upgrade. Still have around 300 gallon e96 at home to burn up. Will probably head to the dyno again early november!

[Newguy123]

Originally Posted by Darkhold

I should have fuelit.biz f series stage2 lpfp upgrade installed end of the month together with some ngk spark plugs and some other stuff. I wonder how she will do on 60% e85 with dual meth bungs (cm7 + cm5). I guess i am prepared when Jesse finishes his stage2 pure upgrade. Still have around 300 gallon e96 at home to burn up. Will probably head to the dyno again early november!

you think your trans will hold with no flash tuning and a stage 2 turbo?

[PeterPure]

Originally Posted by Newguy123

you think your trans will hold with no flash tuning and a stage 2 turbo?

Sure it will. The zf is a torque convertor automatic. Currently its seeing 8 to 10 psi of boost. It doesnt slip at all currently. I do think it has a 650nm safety limit built in though.

So with jb only i can limit boost < 4k rpm to reduce torque there. Over 4k rpm its no problem to run max boost with a stage2 turbo i think.

But a backend flash is just around the corner so i can soon enjoy the most from the car.

[Newguy123]

Originally Posted by Darkhold

Sure it will. The zf is a torque convertor automatic. Currently its seeing 8 to 10 psi of boost. It doesnt slip at all currently. I do think it has a 650nm safety limit built in though.

So with jb only i can limit boost < 4k rpm to reduce torque there. Over 4k rpm its no problem to run max boost with a stage2 turbo i think.

But a backend flash is just around the corner so i can soon enjoy the most from the car.

Can't wait

[iuhutch]

Originally Posted by Darkhold

Sure it will. The zf is a torque convertor automatic. Currently its seeing 8 to 10 psi of boost. It doesnt slip at all currently. I do think it has a 650nm safety limit built in though.

So with jb only i can limit boost < 4k rpm to reduce torque there. Over 4k rpm its no problem to run max boost with a stage2 turbo i think.

But a backend flash is just around the corner so i can soon enjoy the most from the car.

I can't believe the 8-speed auto does such a good job of holding the power that the DCT doesn't seem to do as good of a job yet. The new M2 is being offered with the DCT 7-speed trans so BMW is obviously still using the technology. PLEASE please keep us updated on the company that is providing flashes to the f-series cars and what they'll be able to do for the 2012+ e-series cars!

[JETmn]

Just a quick something I thought of; I have 63k miles on my car, most of it with a JB4 on and 18 psi. The turbo that came off the car didn't have any more shaft play than the Pure going in! I think we should see a long life out of these.

[JETmn]

Took the car out for some shakedown runs last night, still on map 5. Car felt very close to stock turbo power and delivery. I was very happy there is no perceptible difference in spool (6AT). The power definitely doesn't fall on its face up top though, sport mode is MUCH more usable now! It was still falling off some at 6500, but not nearly as hard. I am thinking stage 2 is going to be perfection, I can't wait!

[paradoxical3]

Originally Posted by JETmn

Took the car out for some shakedown runs last night, still on map 5. Car felt very close to stock turbo power and delivery. I was very happy there is no perceptible difference in spool (6AT). The power definitely doesn't fall on its face up top though, sport mode is MUCH more usable now! It was still falling off some at 6500, but not nearly as hard. I am thinking stage 2 is going to be perfection, I can't wait!

The car feels close to stock because map 5 will not target higher boost targets than the stock turbo. So in other words, you get almost no benefit from the Pure Turbo Stage 1 when running map 5 - just a bit better ability to hold the boost up top.

You need to use map 6 to realize any benefits.

[JETmn]

Originally Posted by paradoxical3

The car feels close to stock because map 5 will not target higher boost targets than the stock turbo. So in other words, you get almost no benefit from the Pure Turbo Stage 1 when running map 5 - just a bit better ability to hold the boost up top.

You need to use map 6 to realize any benefits.

Yep, I know that. Didn't have time to do any logging yet so I didn't want to mess with it. Hoping to run 20-21psi and then taper up top once I get map 6 set up.

[PeterPure]

If running default maps target is lowered topend range. However since the turbo just cant stop spooling it will overboost a bit.

Ofcourse map6 brings you all the joy

I have been running flat 15 psi boost curve last 2 weeks and today i ran 20 psi again. Man still a big difference and put a smile on my face once more

[danielescobarg]

Who is running pure stg 1 on an Electric wastegate?
We are building our second pure stg1 on a F30 335 and was curious as per what settings are you running with the Flex fuel wires on map 6.

Best,
Daniel

[PeterPure]

Originally Posted by danielescobarg

Who is running pure stg 1 on an Electric wastegate?
We are building our second pure stg1 on a F30 335 and was curious as per what settings are you running with the Flex fuel wires on map 6.

Best,
Daniel

I also have the flex fuel wires on my pneumatic car. The boost settings for ewg cars on map6 is the same if you have the ewg wiring installed.

[danielescobarg]

Originally Posted by Darkhold

I also have the flex fuel wires on my pneumatic car. The boost settings for ewg cars on map6 is the same if you have the ewg wiring installed.

I know, boost wise should be the same, but there are some fields that need to be change with FF wires, but now sure if on EWG are the same as PWG

[JETmn]

Originally Posted by danielescobarg

I know, boost wise should be the same, but there are some fields that need to be change with FF wires, but now sure if on EWG are the same as PWG

I hear you, I wish there was a decent guide that told you everything. You know, like and Owner's Manual. What a novel idea!

You end up finding little bits and pieces all over the place, but it isn't up front.

[PeterPure]

Indeed but we are here to help eachother out, right?

[danielescobarg]

Originally Posted by Darkhold

Indeed but we are here to help eachother out, right?

Dark, I see that you have now a LPFP upgrade. Did it help in getting those AFT down? Im debating on doing this vs the Back-end flash. Since back-end flash is apparently a total mystery and we are on our own after we pure stg 1, do you recommend the upgrade? Do you have logs before and after?

[PeterPure]

Originally Posted by danielescobarg

Dark, I see that you have now a LPFP upgrade. Did it help in getting those AFT down? Im debating on doing this vs the Back-end flash. Since back-end flash is apparently a total mystery and we are on our own after we pure stg 1, do you recommend the upgrade? Do you have logs before and after?

Hi Daniel,

I have plenty of before logs but no after logs yet. My pump was delivered today. I will install it tomorrow. I will keep you posted.

My AFRs are ok now as well. I just cant put in over 17L E100 mixed with 35L 98 (us 93). When i put in more E the hpfp couldnt give enough fuel and lost pressure. I hope the issue is lpfp related. It could as well be the lpfp was fine and the hpfp is the issue. I will find that out the coming week(s).

In case its hpfp i have to either lower my E % in the fuel mix or change my dual nozzle meth cm5/cm7 into cm5/cm10 or cm7/cm10. But lets not jump to conclusions yet. Either way i would still do backend flash if its possible.

[danielescobarg]

Originally Posted by Darkhold

Hi Daniel,

I have plenty of before logs but no after logs yet. My pump was delivered today. I will install it tomorrow. I will keep you posted.

My AFRs are ok now as well. I just cant put in over 17L E100 mixed with 35L 98 (us 93). When i put in more E the hpfp couldnt give enough fuel and lost pressure. I hope the issue is lpfp related. It could as well be the lpfp was fine and the hpfp is the issue. I will find that out the coming week(s).

In case its hpfp i have to either lower my E % in the fuel mix or change my dual nozzle meth cm5/cm7 into cm5/cm10 or cm7/cm10. But lets not jump to conclusions yet. Either way i would still do backend flash if its possible.

Awesome. That one fast signature edit then.. lol.

super interested on the results. Hope that solves the issue. The backend flash for me is a super dark area... no results at all from people running pure turbo, not clear what map to use, etc.....

Best.
Daniel

[loesch]

Originally Posted by danielescobarg

Awesome. That one fast signature edit then.. lol.

super interested on the results. Hope that solves the issue. The backend flash for me is a super dark area... no results at all from people running pure turbo, not clear what map to use, etc.....

Best.
Daniel

I have done the backend flash. There aren't any issues. I don't think much has been altered from the stock DME settings other than boost targets and AFRs. It doesn't change anything with regard to the JB4 maps except for 0 and 4. I actually really like it because my car targets up to around 14psi without the JB4. It makes map 4 quite usable as an every day map and also the car doesn't feel slow when warming up. I usually use map 6 though. That's the only other map you'll want to use since the others all taper boost so much up top. IMO I would stay away from the N20 TMAP sensor for now though. I tried that as well and it did not work well.

Here is a before and after of the backend flash.

Before
http://datazap.me/sites/default/file...20_45_17_0.csv

After
http://datazap.me/sites/default/file...2019_08_33.csv