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[auf Deutsch]

What's up with the Dinan website? I can't log on from either of my devices.

[Jackie Chiles]

Originally Posted by auf Deutsch

What's up with the Dinan website? I can't log on from either of my devices.

I think it's been down for a few days.

What gives, Dinan?

[Dinan_Engineering]

Originally Posted by auf Deutsch

What's up with the Dinan website? I can't log on from either of my devices.

Originally Posted by Jackie Chiles

I think it's been down for a few days.

What gives, Dinan?

Up now. The tech guys are looking into the cause of the issue but they resolved it super quick this morning so must not have been too earth shattering whatever the cause.

[Jackie Chiles]

Originally Posted by Dinan_Engineering

Up now. The tech guys are looking into the cause of the issue but they resolved it super quick this morning so must not have been too earth shattering whatever the cause.

It was probably the North Koreans.

[Dinan_Engineering]

Originally Posted by Jackie Chiles

It was probably the North Koreans.

Makes sense to me.

[auf Deutsch]

Tis December, any juicy stage 4 gossip?

[Bimmer28312]

Still no intercooler??

[SeanWRT]

Originally Posted by Dinan_Engineering

~3.5 PSI
Don't see the point of pushing much farther unless you have a bigger turbo on the thing. Just going to be producing heat at that point with no gains. Unless they are pushing up that large delta amount in the lower RPM's just to have the torque surge. Which I guess you can do but just give you a bit of whiplash. Dinan has always been more about a gradual steady power build up and smooth power band in general. Not slamming you back in your seat at 2500 RPM just for the feel of it. To each their own.

Dinan,

What is the target boost your software sets at top end?

Will a high flow DP and a good FMIC make meaningful gains with your stage 1 tune? Say extra 15~20WHP?

[Dinan_Engineering]

Originally Posted by auf Deutsch

Tis December, any juicy stage 4 gossip?

Originally Posted by Bimmer28312

Still no intercooler??

Waiting on engineering to give its blessing and sprinkle holy water on the products or the sign of the cross or whatever they do in the time between when they verbally say stuff is ready to when its actually released ("paperwork bureaucracy" is the phase I call this).

Originally Posted by SeanWRT

Dinan,

What is the target boost your software sets at top end?

Will a high flow DP and a good FMIC make meaningful gains with your stage 1 tune? Say extra 15~20WHP?

The DME/tune doesn't target boost. It targets load. The actual boost will depend on conditions that are necessary to get to that load. At sea level (or close to it) that delta is ~+3.5 PSI as stated earlier. Haven't heard what that number is for the big turbo stage but if its the same as the M235i it would be ~+8.0-+8.5 PSI.

We dont do any testing with modified CATs for emissions reasons so I really couldn't give you a concrete answer on the second question. In general the CAT's are the single most restrictive element in a system though so their removal, or going to a lower cel count version, would give you some power.

[Bimmer28312]

Will you have enough intercoolers on initial launch? I live close enough to Morgan hill or your Mt view shops so I can go either or. If supply will be a minimum how can I be the first on your list?

[Dinan_Engineering]

Originally Posted by Bimmer28312

Will you have enough intercoolers on initial launch? I live close enough to Morgan hill or your Mt view shops so I can go either or. If supply will be a minimum how can I be the first on your list?

Should have plenty for the initial launch. I'll put up the release when its imminent and you can contact Erin over in Mtn. View to get it scheduled/ordered.

[auf Deutsch]

Originally Posted by Dinan_Engineering

Should have plenty for the initial launch.

And turbo supply?

[Dinan_Engineering]

Originally Posted by auf Deutsch

And turbo supply?

Turbos are turbos--- there's never enough cores to go around. We are currently cycling through 28-29 cores for the N55 EWG. The non-M2 demand seems to be lessening though which will ease up the availability for the impending M2 demand. Given..its still limited.

[SeanWRT]

Originally Posted by Dinan_Engineering

The DME/tune doesn't target boost. It targets load. The actual boost will depend on conditions that are necessary to get to that load. At sea level (or close to it) that delta is ~+3.5 PSI as stated earlier. Haven't heard what that number is for the big turbo stage but if its the same as the M235i it would be ~+8.0-+8.5 PSI.

We dont do any testing with modified CATs for emissions reasons so I really couldn't give you a concrete answer on the second question. In general the CAT's are the single most restrictive element in a system though so their removal, or going to a lower cel count version, would give you some power.

Now if you don't mind my coming back with more questions Though I Just wish I understand the load/target tunes difference...care to explain?

Is load based tuning an exclusive Dinan feature? It looks to me a tune that brings out full potential of your hardware that's possible to a piggyback. Does that mean it effectively take advantage of the DP/IC or FBO setup?

Then what's the difference in tune between Dinan stage 1 and say 3 or 4?

[Dinan_Engineering]

Originally Posted by SeanWRT

Now if you don't mind my coming back with more questions Though I Just wish I understand the load/target tunes difference...care to explain?

Is load based tuning an exclusive Dinan feature? It looks to me a tune that brings out full potential of your hardware that's possible to a piggyback. Does that mean it effectively take advantage of the DP/IC or FBO setup?

Then what's the difference in tune between Dinan stage 1 and say 3 or 4?

I am no engineer so take the following explanation that follows with a grain of salt... It's how I understand it at least.

Load based tuning is not unique to Dinan. Its simply the way the current generation of BMW DME's are programmed from the factory to make power. Instead of targeting a boost value it targets a load value (torque). So depending on altitude as an example that boost number needed to get to the load may be higher. At altitude and in thinner air the engine simply works harder to make the same amount of power that would be present at sea level. It does this by adding more boost until it meets its requirement. This is why a car in Colorado may be running 20 PSI of boost and a car in LA is running 16 PSI but they output the same power. BMW does this so every car no matter the conditions will be making the same power (in theory).

In terms of the tuning (specifically Dinan) the stage 1 tune will not maximize the benefits of a FBO setup, particularly the DP because without the catalyst restriction the load target could be scaled up, which it is not, because our tunes assume a stock cat is on the vehicle. You will get some additional power from the car just because a restriction is removed but it would not be optimized for it.

Stage 1 and stage 4 difference essentially comes down to the cap power is increased. I'll speak in boost just because it easier to illustrate. Stage 1 may have a peak boost of 15 PSI and stage 4 may have a peak boost of 23 PSI. Just because the hardware is on the car from stage 4 the tuning is still stage 1 the car will still be peaking at 15 PSI and not the 23 PSI. Its the same with load/torque.

I'm horrible at illustrating more technical points. lol

[SeanWRT]

Originally Posted by Dinan_Engineering

I am no engineer so take the following explanation that follows with a grain of salt... It's how I understand it at least.

.......

I'm horrible at illustrating more technical points. lol

Actually you've always been very helpful

BMW's load based approach for turbo engine is not new to us but it surprises me that a piggyback works the same way, though to be completely honest I am still a little bit skeptical on it.

My understanding is that engine perform to piggyback preset boost/AFR targets with altered signals and has much less control on the power output it ends up making.

Can you double check and confirm I am wrong?

[toastie]

Dinan_Engineering Are there any new updates on additional product offerings for the M2?

[Dinan_Engineering]

Originally Posted by SeanWRT

Actually you've always been very helpful

BMW's load based approach for turbo engine is not new to us but it surprises me that a piggyback works the same way, though to be completely honest I am still a little bit skeptical on it.

My understanding is that engine perform to piggyback preset boost/AFR targets with altered signals and has much less control on the power output it ends up making.

Can you double check and confirm I am wrong?

That statement (if I am reading it correctly) is correct for units that are strictly utilizing MAP/TMAP sensors only and are just fiddling with the boost. The DME is filling in the gaps where the piggyback is only "adjusting" boost values.

Originally Posted by toastie

Dinan_Engineering Are there any new updates on additional product offerings for the M2?

The only 2 other M2 products that I am aware of in the pipeline are camber plates and strut braces. No real news on either though.

[toastie]

Originally Posted by Dinan_Engineering

The only 2 other M2 products that I am aware of in the pipeline are camber plates and strut braces. No real news on either though.

Wasn't an intercooler in the planned offering as well? Will there be any additional stages to your tuning software?

[Dinan_Engineering]

Originally Posted by toastie

Wasn't an intercooler in the planned offering as well? Will there be any additional stages to your tuning software?

Stage 4, big turbo, and intercooler are all interrelated and have been being discussed for the last couple pages so I thought that was already implied. =)

[MR_M2]

Dinan_Engineering do you have any information about the decibel level for your exhaust with and without resonator delete? I will be tracking my car and some tracks have decibel limits.