[tyler9595]

I have a 2010 e90 335i sport with auto tranny. When I bought the car, I had the dealership put the BMW Performance Power Kit on the car (software, Performance exhaust, etc.)

Today, I took my car in to my dealership to get the Dinan Stage 2 software. (need more ponies!). They called me this afternoon and told me they couldn't install it because of the Power Kit. WTF? Dinan's website says it works fine with the 335is.

I have a call in to Dinan now...

Does anyone know if the PPK precludes me from putting the Dinan software on my car??? Is my dealership right?

[tscdennab]

From what I read on this forum, I think there will not be enough power gain with Dinan S2, compared to the Power Kit. Maybe 25whp more. Is Dinan Stage 3 very expensive ?

[achien]

yes, D3 is very expensive, you need to get their Dinan Oil Cooler and Inter-cooler, this is on top of the software.

Originally Posted by tscdennab

From what I read on this forum, I think there will not be enough power gain with Dinan S2, compared to the Power Kit. Maybe 25whp more. Is Dinan Stage 3 very expensive ?

[tyler9595]

25 hp? Can you point me to a thread?

I was under the impression that Dinan Stage 2 would take me up to 78hp and 116ftlbs over stock as per their website? What am I missing?

[tibra1]

Why do you want to go with Dinan, its an over-priced and under-powered tune

[tscdennab]

Originally Posted by tyler9595

25 hp? Can you point me to a thread?

I was under the impression that Dinan Stage 2 would take me up to 78hp and 116ftlbs over stock as per their website? What am I missing?

You are missing the difference between wheel hp and crank hp (Dinan publishes crank hp), and some dyno graphs on Dinan S2 posted on this forum, which are not impressive at all...I don't think I have ever seen more than 40-45whp gain.

http://www.e90post.com/forums/showthread.php?t=241782
http://www.e90post.com/forums/showthread.php?t=303139
http://www.e90post.com/forums/showthread.php?t=151280
http://www.e90post.com/forums/showthread.php?t=509038

Etc...

[tyler9595]

Originally Posted by tscdennab

You are missing the difference between wheel hp and crank hp (Dinan publishes crank hp), and some dyno graphs on Dinan S2 posted on this forum, which are not impressive at all...I don't think I have ever seen more than 40-45whp gain.

Thanks. That makes sense. But, I think the BMW Performance Power Kit is only rated at something like 330 at the crank. So, the Dinan is still quite a bit more, right?

[tscdennab]

Originally Posted by tyler9595

Thanks. That makes sense. But, I think the BMW Performance Power Kit is only rated at something like 330 at the crank. So, the Dinan is still quite a bit more, right?

I personally have the Power Kit (in fact, I have only the hardware, I replaced the software with GIAC Stage 2), and I got +23whp to +27whp at the wheels (I changed my username in the mean time):

http://www.e90post.com/forums/showpo...7&postcount=47

Since the Dinan S2 delta is 40-45whp, I expect the delta between Dinan and Power Kit to be about 25whp.

[shortseller]

Originally Posted by tibra1

Why do you want to go with Dinan, its an over-priced and under-powered tune

Not sure why you think the D2 is under powered, I've got it and the gains over stock are very obvious and probably quite enough for most that are not looking to track their cars.

And oh yeah...Dinan matches BMW warranty and offers free lifetime flashes and updates.

[tyler9595]

Originally Posted by tscdennab

I personally have the Power Kit (in fact, I have only the hardware, I replaced the software with GIAC Stage 2), and I got +23whp to +27whp at the wheels (I changed my username in the mean time):

http://www.e90post.com/forums/showpo...7&postcount=47

Since the Dinan S2 delta is 40-45whp, I expect the delta between Dinan and Power Kit to be about 25whp.

Based on this info (thank you, BTW), it sounds to me that the torque number (+116lbft) shown on Dinan's website is overstated?

The PPK is about 330lbft tq at the crank, right? Wouldn't the Dinan S2 be somewhere in the ballpark of 420lbft? (i.e. stock tq of 306lbft + 116lbft = 422lbft).

I would think this difference (422lbft for S2 compared to 330lbft for the PPK) would be very noticeable in daily driving. Are Dinan's numbers that far off?

[BQTuning]

There is a big difference with Dinan S2 vs the BMW performance Power Kit tune. There is an absolute night and day difference in power deliver between the two, meaning, Dinan S2 trumph the BMW Power Kit software all day long. I have driven and breathed the 335is and in no way does a stock 335is come near to the power delivery of the Dinan S2.

They told you wrong, they can flash the Dinan S2 over the PPK software maping. The Dinan S2 does not alter the other DME parimeters that are related to the two radiator fans etc which I think they are being confused about that is part of the PPK

The Dinan S2 only overights the boost levels/targets, water pump,fuel mixtures, and timing. If they dont know this then they dont need to sell Dinan.

I am leaving my 07 E92 335i with Dinan Stage 3 for a 2012 335is with Dinan Stage 2.

Note of advice, if you get stage 2 you might as well go all the way for stage 3. Do no mix mods unless you are out of warranty

[BQTuning]

Originally Posted by tibra1

Why do you want to go with Dinan, its an over-priced and under-powered tune

And because of that so called over price Dinan I am getting a brand new 2012 335is . No money out of pocket for a down payment. I will just continue my regular payments.

Money well spent.

[tibra1]

Originally Posted by shortseller

Not sure why you think the D2 is under powered, I've got it and the gains over stock are very obvious and probably quite enough for most that are not looking to track their cars.

And oh yeah...Dinan matches BMW warranty and offers free lifetime flashes and updates.

Ofcourse over stock you are going to feel a gain but for the pricepoint there are many other reflashes which are stronger..as far as the warranty the jury is out on that..and so you are aware you have to get Dinan's supporting mods for them to warranty..

Dinan's tune doesnt even support downpipes..anyone who has modded the n54 knows that downpipes are by far the best supporting mod to increase power

[nitehawk]

Originally Posted by BuraQ

And because of that so called over price Dinan I am getting a brand new 2012 335is . No money out of pocket for a down payment. I will just continue my regular payments.

Money well spent.

Did you have to buy Dinan S2 again with the 335is?

[BQTuning]

Originally Posted by nitehawk

Did you have to buy Dinan S2 again with the 335is?

No. I just have to wait for the break in period of the vehicle.

[nitehawk]

Originally Posted by BuraQ

No. I just have to wait for the break in period of the vehicle.

Wow...I didn't know we could do that. Any stipulations?
I thought when you buy a Dinan tune, it's for a single VIN only.

[BQTuning]

Originally Posted by nitehawk

Wow...I didn't know we could do that. Any stipulations?
I thought when you buy a Dinan tune, it's for a single VIN only.

Technically yes, however the rule of liability in my situation rests with the dealer not Dinan. Its another way of compensating me for something so I am not penalized due to the dealer's possible error.

[tyler9595]

Just to close this thread out and clarify the answer to the original question....Dinan rep called me back and confirmed the S2 software can absolutely be loaded on a car that has the BMW Performance Power Kit.

[shortseller]

Originally Posted by tyler9595

Just to close this thread out and clarify the answer to the original question....Dinan rep called me back and confirmed the S2 software can absolutely be loaded on a car that has the BMW Performance Power Kit.

OK.

[tyler9595]

Had the Dinan S2 put installed yesterday. I've only put about 20 miles on the car since installation but I can tell it's definitely got significantly more pull compared to the BMW PPK tune.

I was pleasantly surprised that the S2 isn't as peaky as I feared it would be. So far, it seems to be just as smooth as the PPK.

If anyone is wondering whether they will feel a real (fun) difference between the BMW PPK and Dinan S2, I think you will. I'm looking forward to experimenting in the rev range to see where the real differences are.

Obviously, the S2 tune isn't the cheapest or most powerful tune, but I'm happy with it so far.

[BQTuning]

Originally Posted by tyler9595

Had the Dinan S2 put installed yesterday. I've only put about 20 miles on the car since installation but I can tell it's definitely got significantly more pull compared to the BMW PPK tune.

I was pleasantly surprised that the S2 isn't as peaky as I feared it would be. So far, it seems to be just as smooth as the PPK.

If anyone is wondering whether they will feel a real (fun) difference between the BMW PPK and Dinan S2, I think you will. I'm looking forward to experimenting in the rev range to see where the real differences are.

Obviously, the S2 tune isn't the cheapest or most powerful tune, but I'm happy with it so far.

Since it is not a piggy, it will take just over 100 miles for the DME to adjust to the new tune. Your adaptive driving is also reset so that is also subject to readaptation and make sure to always use 93 octane.

After you reach over 100 miles from the flash go take your car in for a car wash ;-D