[Kelvin1000]

There is a sweet spot for both tunes to activate the bogfix. Just takes a little practice...

[jcarlucci1]

I am using an 18ohm board..the car knocks on map 7, I cant use it at all, but I still have bog on the lower maps as well. Car seems to run perfect other than the 3--->4 shift. Dont have a BT, trying to find a local shop that can help..

Originally Posted by Mike@N54Tuning.com

Did you BT log and figure out what the cause was? From your description it sounded like knock retard so you probably have some other problem going on with the car. Are you running a normal JB3 or a modified board? The modified boards are a lot more sensitive to things being perfect as one would expect when pushing the limits.

Mike

[jcarlucci1]

Can you explain what you mean?

Originally Posted by Kelvin1000

There is a sweet spot for both tunes to activate the bogfix. Just takes a little practice...

[jpsimon]

with the procede, to "activate" the fix you have to shift at 6500 or later and completely take your foot off the throttle.. but you have to do this fast. if you do it right you'll never bog between shifts. this of course is only applicable when driving hard (at WOT)

[Mike@N54Tuning.com]

Originally Posted by jcarlucci1

I am using an 18ohm board..the car knocks on map 7, I cant use it at all, but I still have bog on the lower maps as well. Car seems to run perfect other than the 3--->4 shift. Dont have a BT, trying to find a local shop that can help..

The modified board is meant for people who run mainly race gas or meth, so the first thing to do is to revert back to the production board, and then do those BT logs to see what the problem is.

Mike

[enrita]

Originally Posted by jcarlucci1

I am using an 18ohm board..the car knocks on map 7, I cant use it at all, but I still have bog on the lower maps as well. Car seems to run perfect other than the 3--->4 shift. Dont have a BT, trying to find a local shop that can help..

The car doesnt knock... is pulling timing to avoid knock...

[munters]

Originally Posted by enrita

The car doesnt knock... is pulling timing to avoid knock...

and why is the car pulling timing?

[enrita]

Originally Posted by munters

and why is the car pulling timing?

because the ECU understands that if it continues with those timings you will eventually knock soon so in order to avoid that timing is pulled.

[jpsimon]

Originally Posted by enrita

because the ECU understands that if it continues with those timings you will eventually knock soon so in order to avoid that timing is pulled.

the car magically forsees what is to come with no knocking?

[enrita]

Originally Posted by jpsimon

the car magically forsees what is to come with no knocking?

Yes , its magic, amazing huh?

[jpsimon]

so the car just pulls timing and never knocks. so no matter what, if you're running a map far too aggressive for your mods/octane the car figures this out before knocking and pulls timing... gotcha

[jcarlucci1]

Im no expert, but Im pretty sure the car is knocking. At WOT the car jerks so bad it's undriveable..

Mike--I had the shift bog problems with the 24ohm board as well. Either way, I dont want to ruin this thread Ill report back when/if I get it figured out

Originally Posted by enrita

The car doesnt knock... is pulling timing to avoid knock...

[Mike@N54Tuning.com]

Originally Posted by jpsimon

the car magically forsees what is to come with no knocking?

Most can't feel the difference between knock, misfire, throttle closure, or boost drop. Audible knock is hard to induce. Just like with your procede long term trims learn out excessive advance. So to get real audable knock you need sudden huge boost swings.

Either way OP is crazy to run a modified board without a bt on pump gas. It would be like you running 100% user torque and not logging the car. Not a good idea.

Mike

[Mike@N54Tuning.com]

Originally Posted by jcarlucci1

Im no expert, but Im pretty sure the car is knocking. At WOT the car jerks so bad it's undriveable..

Mike--I had the shift bog problems with the 24ohm board as well. Either way, I dont want to ruin this thread Ill report back when/if I get it figured out

Without the logs its speculation, but knock in this platform isn't something you normally can easily feel. What you are describing could be misfire, from bad plugs, or running lean. Any codes? Really I suggest you purchase a BT cable, its a very useful tool, especially for a heavily modified car.

Mike

[jpsimon]

I was obviously being facetious

[OpenFlash]

Originally Posted by Mike@N54Tuning.com

Most can't feel the difference between knock, misfire, throttle closure, or boost drop. Audible knock is hard to induce. Just like with your procede long term trims learn out excessive advance. So to get real audable knock you need sudden huge boost swings.

Either way OP is crazy to run a modified board without a bt on pump gas. It would be like you running 100% user torque and not logging the car. Not a good idea.

Mike

Not quite. Even at 100% user torque, the Procede is still retarding 4-5 degrees of ignition advance.

Shiv

[Mike@N54Tuning.com]

Originally Posted by shiv@vishnu

Not quite. Even at 100% user torque, the Procede is still retarding 4-5 degrees of ignition advance.

Shiv

It's still always bumping against the knock sensor. Especially heavily in the areas < 4500rpm used often during daily driving. One needs only clear the long and short term timing adaptions and log to reveal the true nature of the beast.

Mike

[OpenFlash]

Originally Posted by Mike@N54Tuning.com

It's still always bumping against the knock sensor. Especially heavily in the areas < 4500rpm used often during daily driving. One needs only clear the long and short term timing adaptions and log to reveal the true nature of the beast.

Mike

lol.. Okay Mike.

[scottp999]

Originally Posted by jcarlucci1

Im no expert, but Im pretty sure the car is knocking.

Me either (but I think you are dead right), the car has knock sensors - part 13627566786. I would assume when they sense it, they reign it in.

Don't want to be in tuning wars, but the whole thing boils down to, one tune may prevent knock from happening and the other may be letting the car adjusts when it "hears" knock.

[jcarlucci1]

My concern is the bog between shifts with jb3. It happens regardless of octane, map, or board. I am fully aware of the dangers of using an 18 ohm board on 93 octane, but blaming that for the hesitation between shifts is not a valid argument. Btw, not throwing any codes either. No offense, but i dont really feel like spending another $300 to try and figure out why my tune isnt working properly

Originally Posted by Mike@N54Tuning.com

Most can't feel the difference between knock, misfire, throttle closure, or boost drop. Audible knock is hard to induce. Just like with your procede long term trims learn out excessive advance. So to get real audable knock you need sudden huge boost swings.

Either way OP is crazy to run a modified board without a bt on pump gas. It would be like you running 100% user torque and not logging the car. Not a good idea.

Mike

[enrita]

If a knock actually happens the ECU will register it as "SuperKnock" and you will never get there besides having some real big issues with the engine in general. The knock sensor sensitivity is set in a way to start pulling timing way before you actually knock. Anyway everybody can see this in different ways but its important to know that the car is not knocking when pulling timings. Think the N54 deserves more credit on its very advanced capabilities of its electronic management.

[badass335]

Originally Posted by jcarlucci1

I am using an 18ohm board..the car knocks on map 7, I cant use it at all, but I still have bog on the lower maps as well. Car seems to run perfect other than the 3--->4 shift. Dont have a BT, trying to find a local shop that can help..

I actually had this issue when i first installed my JB3. Knock on map 7, but after i reset the ecu, car adapted and it was fine.In the mean while, i ran map 6 and there was a major bog for me on that map. I would unplug the battery for the night, plug back in the morning and try map 3 and allow car a day or 2 to adapt. Once it has or you feel its been long enough, raise the maps. Map 7 was the sweet spot for me. Power everywhere, no knock, no misfires, and no bog.