Preventing rods from bending and engine damage.

[bm5bullit]

Originally Posted by brad850csi

I'd love to see that tune with Pure Stage 2. Keep torque to 550lbft for as long as possible - in the chart above it drops below 550lbft at about 5000rpm, if it could keep that flat until 6000rpm that would be great.

Ditto. That my goal also because of Allmotor's comparison of the different stages.

[OpenFlash]

Originally Posted by brad850csi

I'd love to see that tune with Pure Stage 2. Keep torque to 550lbft for as long as possible - in the chart above it drops below 550lbft at about 5000rpm, if it could keep that flat until 6000rpm that would be great.

I've already mapped an M5 with both Pure Stage 1 and Stage 2 turbos. And the results were quite good considering we were limited by the amount of boost we could run with the OEM MAP sensors. In order for a nice flat torque curve to be maintained at high RPM, one needs to run more than 22psi up. We will be revisiting these cars soon one we have the 3.5bar MAP sensors installed and are able to run ramp up boost a bit at high RPM

[allmotor_2000]

The s63tu has another issue when you don't pre-load boost down low... it just won't always make power up top. You have to find the right balance. Incremental target more boost (via whatever load factor) until 5.5K.

[azndrunk74]

Originally Posted by OpenFlash

I've already mapped an M5 with both Pure Stage 1 and Stage 2 turbos. And the results were quite good considering we were limited by the amount of boost we could run with the OEM MAP sensors. In order for a nice flat torque curve to be maintained at high RPM, one needs to run more than 22psi up. We will be revisiting these cars soon one we have the 3.5bar MAP sensors installed and are able to run ramp up boost a bit at high RPM

are you tuning to run pure stage 1/2 turbos over 22 psi on a stock motor?

[OpenFlash]

Originally Posted by azndrunk74

are you tuning to run pure stage 1/2 turbos over 22 psi on a stock motor?

Not yet but we are going to do some testing at slightly higher boost pressure. But only at higher engine speeds where torque is reasonable. Will probably be doing the testing on our shop car.

[brad850csi]

I am excited!

[Mkai0]

Originally Posted by OpenFlash

Not yet but we are going to do some testing at slightly higher boost pressure. But only at higher engine speeds where torque is reasonable. Will probably be doing the testing on our shop car.

Do plan on offering your tuning services through Bootmod3?

[OpenFlash]

Originally Posted by Mkai0

Do plan on offering your tuning services through Bootmod3?

I’m afraid not.

[Mr. M6]

can some one tell me or explain if my dyno graph is ok for the engine or ??

[STONEY_M5]

Originally Posted by OpenFlash

I’m afraid not.

Where can I purchase your tune?

[OneExtra]

Originally Posted by STONEY_M5

Where can I purchase your tune?

From their website Openflash.com

[STONEY_M5]

Originally Posted by OneExtra

From their website Openflash.com

Yea, no that takes you to an adobe website.

[F10CPROG]

Interested in the tune also

[OneExtra]

Originally Posted by STONEY_M5

Yea, no that takes you to an adobe website.

https://www.openflashtablet.com/

[OneExtra]

Originally Posted by F10CPROG

Interested in the tune also

https://www.openflashtablet.com/

[GreenRacingM3]

Originally Posted by OpenFlash

This. The key is to limit the torque and to not run excessive timing in the midrange. A lot of tune files I've seen retain the OEM ignition mapping which actually runs 1-2 deg too much timing at 22psi. Still doesn't knock which is why most tuners don't think to much about it. But you can make the same power with less timing and far lower peak cylinder pressures. Probably the biggest mistake people make is running methanol injection and letting the ECU run an aggressive timing map. It may be knock-free but it's certainly going to induce excessive wear and tear.

So glad to see the smartest person in the room from my STi days here in the M5 room dropping knowledge. Appreciate this info