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-   -   BMW DINAN tuning (https://www.revscene.net/forums/694619-bmw-dinan-tuning.html)

BEEB 04-24-2014 08:57 AM

40% drivetrain loss is one hell of an loss !

bcrdukes 04-24-2014 09:22 AM

It's just a number that's generally accepted. Mind you, AWD drive train technology has improved significantly over the years. It could be 20% to 30% these days.

What do I know? I drive a Corolla. :fuckthatshit:

AeroK 04-24-2014 09:31 AM

Dinan is the best....lol im just being a jackass

underscore 04-24-2014 10:11 AM

Quote:

Originally Posted by bcrdukes (Post 8459917)
Dinan typically measures HP at the flywheel, not at the wheels.

In the example I posted above, the OP ended up with 416hp. He's also got an xDrive drive train.

Take 416hp and let's just use 40% drivetrain loss. 416hp x 1.40 = 582.4 AWHP. THat's a lot more than the advertised numbers.

Umm, what? The drivetrain doesn't add HP, it takes it away, and 40% loss is a stupidly high number. On top of that, your math is completely wrong. With 416AWHP and 40% loss he would have 693 crank HP.

Crank * (1 - loss) = wheel
Crank * (1 - 0.4) = 416
Crank = 416 / 0.6
Crank = 693 according to you.

Now knowing that Dinan may be a bit shifty I would say anyone considering their stuff should get a dyno pull done both before and after to be sure there was actually any change. Looking at the drag numbers alone I would say the Dinan "tune" didn't do shit. They were supposed to add a lot of power and that should provide a noticeable difference.

bcrdukes 04-24-2014 10:39 AM

you didn't read my previous post.

But whatever, I'm not an SAE engineer.

knight604 04-24-2014 11:02 AM

Is Your Dyno Lying? - Feature - Car and Driver

Z3guy 04-24-2014 11:55 AM

Guys, I just bought a 2011 Dinan S3-R (E93 cab). I 100% agree with you all that Dinan is extermely expensive and probably provides less bang for your buck when you compare with other tuners. I have owned E36, E46, E39, E60 M cars. While I could improve the performance, it was hard to improve driveablity and ride comfort. However when the complete Dinan package is installed, the cars feels like OEM but just more aggressive. I wouldn't pay $50K+ for the Dinan package, but I am very happy how the car performs. Sure you could build an M3 (SC & Coilovers) for allot less money and perform better lap times than the Dinan package, but as a complete package (performance, driveabliity, comfort), I think you would be hard pressed to beat Dinan. Plus having your 4 year/80K kms factory warranty intact is a huge benefit.
On M3post, allot of people bash Dinan's stroker motor, saying that a SC is a way better deal, but in the longrun, the SC will turf your motor and you lose the power curve of a NA motor. My two cents.

westopher 04-24-2014 12:18 PM

I've never been a big fan of dinan, but it has nothing to do with the quality of product. It has to do with the performance/dollar ratio. If the parts were more of a reasonable price, I'd be very happy to have their products on my car. If I had a 65k car that was under warranty and I was planning on modding my car, I think the price of the warranty approval on the parts however may be worth that premium.

knight604 04-24-2014 12:37 PM

The thing about dinan is the quality is there because of in house but not a lot of people will fork money for that price.

I dont mind paying money for their exhaust because its priced well compared to eisenmann.

underscore 04-24-2014 10:06 PM

Quote:

Originally Posted by westopher (Post 8460897)
I've never been a big fan of dinan, but it has nothing to do with the quality of product. It has to do with the performance/dollar ratio. If the parts were more of a reasonable price, I'd be very happy to have their products on my car. If I had a 65k car that was under warranty and I was planning on modding my car, I think the price of the warranty approval on the parts however may be worth that premium.

It depends on how much you want to mod it, I'm not overly familiar with the BMW lineup but couldn't the guy who dumped $20k into Dinan stuff just have bought a better BMW for $20k more?

westopher 04-24-2014 11:40 PM

Well think of it this way. If I hypothetically had 120k in my bank account towards a car purchase, was a guy looking for a sports coupe I could drive every day and was a bmw fan, I'd head in tomorrow, buy an m3 and leave with my wallet 90k lighter. I want my car faster and more fun, without blowing that warranty I'd head to dinan. Bmw couldn't have offered me more car, because for what I wanted, that was already at the top. I do agree though blowing 20k on dinan upgrades for a non-M car to put the cost into M car territory makes no sense. Although people do it.

bcrdukes 04-25-2014 12:21 AM

More money than brains, I guess! :)

Z3guy 04-25-2014 06:38 AM

Quote:

Originally Posted by bcrdukes (Post 8461346)
More money than brains, I guess! :)

How is buying Dinan parts make you not inteligent? buying expensive well engineered and tested components not make sense? Buying your cosmetic upgrades on Ebay is dumb. How many BMW tuning companies do you know have the R&D expertise of Dinan? How many tuning companies actually have Daytona prototype racers going to them to build an engine for 24hr racing?

Z3guy 04-25-2014 06:43 AM

Quote:

Originally Posted by westopher (Post 8461331)
Well think of it this way. If I hypothetically had 120k in my bank account towards a car purchase, was a guy looking for a sports coupe I could drive every day and was a bmw fan, I'd head in tomorrow, buy an m3 and leave with my wallet 90k lighter. I want my car faster and more fun, without blowing that warranty I'd head to dinan. Bmw couldn't have offered me more car, because for what I wanted, that was already at the top. I do agree though blowing 20k on dinan upgrades for a non-M car to put the cost into M car territory makes no sense. Although people do it.

The fact is the M3 is just "normal car" in Vancouver. I love the fact I can drive a 500hp+ hardtop vert everyday and not worry too much about it!

Eventhough an M5 or M6 is faster in a straight line, I will never go back to either cars because they are just super fast land yachts.

I hope BMW make an M2.

bcrdukes 04-25-2014 06:44 AM

I think you misunderstood the context of my post (if you even read my previous posts.)

I was basically responding to westopher's post where if you have a new BMW, and you buy Dinan, great. It works to your advantage and is worth the expense.

But buying say a 318ti and throwing $20K at it to make it a Dinan car, well....some people do it. Does it make sense? Uhh...not really? To each their own I guess?

knight604 04-25-2014 01:41 PM

m power only

meme405 04-25-2014 01:56 PM

Quote:

Originally Posted by Z3guy (Post 8461396)
How is buying Dinan parts make you not inteligent? buying expensive well engineered and tested components not make sense? Buying your cosmetic upgrades on Ebay is dumb. How many BMW tuning companies do you know have the R&D expertise of Dinan? How many tuning companies actually have Daytona prototype racers going to them to build an engine for 24hr racing?

No you missed the point of his response.

Buying a 335 and dumping 20k into it brings it to the price of an M3. So why the fuck didn't you just buy an M3 to begin with?

I think Jeremy Clarkson said it best once: "Why buy a brogue that has been converted into a training shoe, when for much less you can buy something designed from the ground up as a training shoe".

knight604 04-25-2014 02:43 PM

^ cause people be racking up the CC bills to pay for dinan instead of buying a M car.

westopher 04-25-2014 03:30 PM

Quote:

Originally Posted by meme405 (Post 8461603)
No you missed the point of his response.

Buying a 335 and dumping 20k into it brings it to the price of an M3. So why the fuck didn't you just buy an M3 to begin with?

I think Jeremy Clarkson said it best once: "Why buy a brogue that has been converted into a training shoe, when for much less you can buy something designed from the ground up as a training shoe".

He just took dukes post out of context, thats all. I did too when I first read it.

Z3guy 04-26-2014 10:25 AM

Quote:

Originally Posted by bcrdukes (Post 8461398)
I think you misunderstood the context of my post (if you even read my previous posts.)

I was basically responding to westopher's post where if you have a new BMW, and you buy Dinan, great. It works to your advantage and is worth the expense.

But buying say a 318ti and throwing $20K at it to make it a Dinan car, well....some people do it. Does it make sense? Uhh...not really? To each their own I guess?

My bad, I misunderstood your comment. I agree 100% with you. The factory always does tuning the best. However m cars are still pretty soft nowadays


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