Tuning my DR750s on Chrome

[Chris@Rvengeperformance]

Nice place Chris. Congrats buddy.



Jeff

thanks Jeff, it has been a long time coming!





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[Chris@Rvengeperformance]

It looks nice. I like that you have a wide driveway for parking. The garage is about the same size of my friends. We made a ceiling access hole for him and he stores extra parts up overhead to conserve space. You could put an air compressor up there too and run a line down.

thanks, yep there is an attic access in the garage, I could do that, good idea.





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[HilbillyHomeboy]

That's a beautiful home!

Jeremy

[futurevr4man]

Jrods... That's right. I spoke too quick. My bad. I knew it was someone I knew haha

lol, would love to have you out sometime. We have a LOT to do to get the place together though.

You would sure have a lot bigger space to sleep in.





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You just let me know when! You're not but a measley 6 hours away hahaha!

[hated]

Just got here, so not sure if anyone caught this:

Noisy engine shows false knock at low loads. I never posted a thread about how to "tune" the knock sensor because my fear is it opens the door to people messing their engines up.

At any rate, you were probably just making too much power for that tired old engine. It seems right around when you get to the sweet spot with these turbos, the stock motor gives out...

Please do... is it possible to run different knock sensor tunes, or run an E85 specific unit? One for E85 and one for pump gas?

[Greg E]

Please do... is it possible to run different knock sensor tunes, or run an E85 specific unit? One for E85 and one for pump gas?

No. The knock sensor doesn't need to be "retuned" for different fuels. You tune it for your specific engine.

See, the code is setup to detect sudden noises outside the average engine noise to a certain point. It's that point which varies motor to motor. Higher octane fuels will just simply not produce "pings" too far outside the average engine noise.

[HilbillyHomeboy]

^Yep. As well as the valvetrains in these heads are inherently noisy. Different springs, solid lifters, etc, can greatly change the noise level.

Jeremy

[J. Fast]

Just got here, so not sure if anyone caught this:



Please do... is it possible to run different knock sensor tunes, or run an E85 specific unit? One for E85 and one for pump gas?

Contrary to what was once thought the stock knock sensor can detect noise for any fuel. The solution was discovered by a few engineers at EvoM about 5 years ago.

One thing to note, in order to properly tune for knock you can't use your typical MUT loggers. Deconstructors of Open Flash at EvoM determined it's best to use DMA logging accelerators because they catch every ignition timing event and you can disseminate.
You can cruise thru this thread to learn how to log engine noise and fine-tune. Knock control - load vs RPM table found - evolutionm.net . Best of luck.

[Greg E]

I had thought about re-writing the entire knock base subroutines to match closer to the EVO but haven't yet encountered a need for it. The current filter/octane setup works just fine.

[J. Fast]

I had thought about re-writing the entire knock base subroutines to match closer to the EVO but haven't yet encountered a need for it. The current filter/octane setup works just fine.

Yes it does . Can you post up your knock filter and multiplier logging results in another thread?