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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Dinantronics Sport, Fabspeed Catted DP

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      01-12-2017, 10:14 AM   #23
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Quote:
Originally Posted by DelGriffith View Post
If I go this route, then decide later to add the Dinan big turbo, will I be required to upgrade to the Stage 4 tuner? Would this simple tuner be less efficient, or obsolete?
I am going with the Dinan P2 package, along with some other parts, later down the road (I've already picked up the resonator delete, and ER charge pipes, both turbo to IC, and IC to intake).

I've spoken with some of the "experts" about the setup, and to answer your questions:

- the big turbo will not yield any gains unless you run it with proper tuning (DINANTRONICS Performance Tuner Stage 2) and in conjunction with the larger intercooler (otherwise it will heat soak & pull timing)
- so the Dinantronics Sport simple tuner will have to go
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      01-12-2017, 10:17 AM   #24
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Quote:
Originally Posted by RPM2-85 View Post
Perfect now with the DP. Before that it didn't work great honestly. Sometimes it would hit hard others flat.

The DP changed the game. Addicting little pulls.
Which downpipe did you go with?
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      01-12-2017, 10:19 AM   #25
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Quote:
Originally Posted by rosenbergendo View Post
Which downpipe did you go with?
Look at the title of this thread...
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      01-12-2017, 10:32 AM   #26
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Im convinced the car doesn't need a big turbo setup.

Turbo can hit higher boost without the restriction of the factory DP. The boost controller can get you there. On top of that the ECU as-is can easily keep up with the changes. Smooth delivery all the way out.
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      01-12-2017, 10:36 AM   #27
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Quote:
Originally Posted by RPM2-85 View Post
Im convinced the car doesn't need a big turbo setup.

Turbo can hit higher boost without the restriction of the factory DP. The boost controller can get you there. On top of that the ECU as-is can easily keep up with the changes. Smooth delivery all the way out.
I'm sure you've got a great setup there. But the stock turbo is maxed out. It's gonna heat soak when the temps outside are above 80 degrees running it with the sport tuner.
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      01-12-2017, 11:01 AM   #28
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Quote:
Originally Posted by switlikbob View Post
I'm sure you've got a great setup there. But the stock turbo is maxed out. It's gonna heat soak when the temps outside are above 80 degrees running it with the sport tuner.
Remember that the DP will help ALOT with temps just by itself. Heat is dissipated much much faster with less time to build up.

Im optimistic that I dont need an intercooler with this setup.

If turbo was maxxed out, why am I able to consistently hit MUCH higher boost targets? I just dont believe it and of course dinan says its maxxed out they dont mess with DP. This setup seems to be exactly what the "fast" M2's run at the ring. Just a boost controller and a DP, either small cat or catless.

In those vids, those cars do not heat soak. Im not a believer its maxxed with my experience.
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      01-12-2017, 11:58 AM   #29
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Let me start this reply by saying I really do hope that you get all that you expect out of your setup! I am not trying to be Debbie Downer over here

But...

I don't understand how a different catted downpipe is going to help with alleviating engine heat soak? It can help with exhaust flow, faster spool, etc. I believe the reason Dinan doesn't offer a reduced cell catted DP is because there is a much greater chance the it would generate a CEL, and that would cause many more warranty service issues for them.

When I say the stock turbo is maxxed out, I don't mean that it can't make more boost. I mean it's running outside of it's designed efficiency range (which I am not going to attempt to explain here).

With the dinan tuner you have, you're making the turbo work harder, and it's going to generate more heat, more often, and heat soak the engine. This will be VERY apparent on hot days, or during prolonged heavy foot driving, especially if you have to wait at traffic lights in between pulls. You might be making more boost, but you're also blowing much hotter air into the intake. That's why the larger intercooler is necessary for any mods like this.

Regarding the track car videos, I've never seen them, nor do I know what setups the cars are using. I do know that track driving and street driving are very different. I can say that on a track, you have constant, unimpeded, fast flowing air traveling through your intercooler. This helps tremendously with keeping the IAT's down, avoiding heat soak, and in turn reducing the chance of the ECU pulling timing.

Again, I'm not trying to have an argument with you here, just sharing what I've learned from both owning turbo cars, and from what I've been told by trustworthy sources.

Last edited by switlikbob; 01-12-2017 at 12:05 PM..
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      01-12-2017, 12:16 PM   #30
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Interesting OP, going to go thru the entire topic again and read more in detail.

Thanks for sharing this info.
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      01-12-2017, 12:32 PM   #31
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RPM2-85 Do you track your car or plan to? I'm def curious to see how this setup holds up @ the track
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      01-12-2017, 01:17 PM   #32
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Ive had a few turbo cars myself.....

less restriction=less heat generation.

Maybe I will need further cooling. But this is a DD car. I prob wont track it very much.
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      01-12-2017, 01:25 PM   #33
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Quote:
Originally Posted by RPM2-85 View Post
less restriction=less heat generation.
I'm not saying you're wrong, but I've never read or heard of this before.

Would you mind sharing your sources on this? I'm always trying to educate myself
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      01-15-2017, 09:02 PM   #34
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Does the Dinan tuner have to be disconnected/removed for dealer visits? or can you just set it to stock ala JB4 map 0?

my concern is voiding warranty/interference with dealership diagnostic equipment
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      01-16-2017, 10:30 AM   #35
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No, it's usually dealer installed and retains factory warranty.
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      01-16-2017, 11:13 AM   #36
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I'm seriously considering this DP. Another 15-20 whp with even more enhanced sound would be awesome.
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      01-16-2017, 11:17 AM   #37
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Quote:
Originally Posted by auf Deutsch View Post
I'm seriously considering this DP. Another 15-20 whp with even more enhanced sound would be awesome.
Go for it
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      01-16-2017, 11:19 AM   #38
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Quote:
Originally Posted by switlikbob View Post
No, it's usually dealer installed and retains factory warranty.
Dinan does not retain factory warranty ... If BMW decides to blame the tune for any issue, Dinan offers their own warranty which is different than BMW

For the Dinan Sport, even Dinan warranty does not apply.
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      01-16-2017, 11:25 AM   #39
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This is Dinan's description of its warranty:

http://www.dinancars.com/warranty/
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      01-16-2017, 11:38 AM   #40
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Quote:
Originally Posted by mike@x-ph.com View Post
Dinan does not retain factory warranty ... If BMW decides to blame the tune for any issue, Dinan offers their own warranty which is different than BMW

For the Dinan Sport, even Dinan warranty does not apply.
Mike, this is a bit of a grey area, and i get what you're saying...

But, when the dealer installs your Dinan stuff, and there is a warranty issue, the dealer fixes it. In my scenario, the BMW dealer is the Dinan certified installer.
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      01-16-2017, 11:44 AM   #41
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Quote:
Originally Posted by switlikbob View Post
Mike, this is a bit of a grey area, and i get what you're saying...

But, when the dealer installs your Dinan stuff, and there is a warranty issue, the dealer fixes it. In my scenario, the BMW dealer is the Dinan certified installer.
My comment was to address the BMW warranty post.

Even if your dealer is Dinan certified, when something breaks down that is not covered by BMW your dealer will go back to Dinan and get their approval based on their warranty which is different than BMW one.

They might still fix it and everything goes great, but it is misleading to say that you keep your BMW warranty when going with Dinan thats all
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      01-16-2017, 11:52 AM   #42
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Semantics Mike.

With Dinan, you're gonna get your car fixed for free under warranty by BMW. Who fits the bill is between Dinan and BMW.
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      01-16-2017, 12:02 PM   #43
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Quote:
Originally Posted by switlikbob View Post
Semantics Mike.

With Dinan, you're gonna get your car fixed for free under warranty by BMW. Who fits the bill is between Dinan and BMW.
If your car is covered by Dinan warranty, then yes what you said above is true.

If Dinan does not fix your car because they say it is not covered by their terms and conditions, you will not be able to go to BMW USA and complain. Now you have to pay out of your own pocket.
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      01-17-2017, 03:42 AM   #44
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This Dinan tuner how is it installed? And will it delete the CEL for catless? It's a daily so just fmic intske exhaust really what I plan on keeping it at
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