MarkD M42 Chip installed

[peteM3power]

thanks mark. I'll give it a try later this week. will report back in this thread...

Sounds good Rob. Can't wait to see the dyno results.

Pete

[MarkD]

thanks mark. I'll give it a try later this week. will report back in this thread...

Sounds good Rob. Can't wait to see the dyno results.

Pete

The dyno results may not be as impressive as the chip is in real life. The main reason is that it takes at least 100 miles of driving for the DME to adapt once the power is removed from it. It's best not to perforn a dyno run right after changing a chip.

MarkD

[Rob]

I cant think of another way to have a truly back to back comparison though, I plan on doing a few 'drag runs' and maybe some top speed pulls on the dyno before I actually make the pulls with the new chip. Dynoing with the stock chip, then unhooking the car and driving around for a while isnt ideal in the interest of time

[peteM3power]

What ever you get, I'm interested in seeing it anyway Rob. Mark, fair point but don't worry, I am still interested in this chip :D !

Pete

[rwh11385]

The dyno results may not be as impressive as the chip is in real life. The main reason is that it takes at least 100 miles of driving for the DME to adapt once the power is removed from it. It's best not to perforn a dyno run right after changing a chip.

MarkD

What about doing what I am planning on doing?
Test the MarkD chip first, as it would have already been adapted, then put the stock chip in?
You wouldn't have to have any down time.

Well, I might have to run it to redline up there, but not necessarily do a recorded "pull" to get the ECU to reduce the duty cycles of my 19lb injectors.

But unless I'm overlooking something, I don't see why you cannot run the modded chip first, then go to stock. I'm imagining the stock chip should behave as stock when the power is reset......?

[Rob]

that method works robert

[nickmp0wer]

tried the 92 octane yet?

[Anthrsckmnd]

I'm also really interested in a 92 octane test as that is the highest available in Hawaii. If it runs well, definately count me in for a chip.

[Digitalwave]

The dyno results may not be as impressive as the chip is in real life. The main reason is that it takes at least 100 miles of driving for the DME to adapt once the power is removed from it. It's best not to perforn a dyno run right after changing a chip.

MarkD

What about doing what I am planning on doing?
Test the MarkD chip first, as it would have already been adapted, then put the stock chip in?
You wouldn't have to have any down time.

Well, I might have to run it to redline up there, but not necessarily do a recorded "pull" to get the ECU to reduce the duty cycles of my 19lb injectors.

But unless I'm overlooking something, I don't see why you cannot run the modded chip first, then go to stock. I'm imagining the stock chip should behave as stock when the power is reset......?

The ECU has to adjust to a stock chip as well.

[theberglar]

The ECU has to adjust to a stock chip as well.

True. I have to remove and recharge my battery every time I come back to my car ('89 325i) from school. The idle is rough every time for the first ~50 or so miles.

[nickmp0wer]

howed the 92 octane work out?

[pig4bill]

The ECU has to adjust to a stock chip as well.

True. I have to remove and recharge my battery every time I come back to my car ('89 325i) from school. The idle is rough every time for the first ~50 or so miles.

Get one of those solar powered trickle chargers. It sits on the dash and plugs into the lighter.

[nickmp0wer]

cough 92 octane cough

[Erick]

Hey Rob, how does it feel to have the extra 800rpms on a turn?

[royalflush313]

any updates?