Dinan Drivetrain Flywheel

[Ragenikon]

Lightweight Flywheel
Product Number: D550-0009

Dinan has carefully lightened the stock dual-mass flywheel in order to reduce the amount of energy required to turn it, improving driveline efficiency for faster acceleration and more immediate throttle response. The Dinan flywheel has been lightened for a substantial 23% reduction in rotational...
Price: $1999.00

I have to ask those more knowledgeable, is this really worth 2 grand?

[crzy4135i]

Originally Posted by Ragenikon

Lightweight Flywheel
Product Number: D550-0009

Dinan has carefully lightened the stock dual-mass flywheel in order to reduce the amount of energy required to turn it, improving driveline efficiency for faster acceleration and more immediate throttle response. The Dinan flywheel has been lightened for a substantial 23% reduction in rotational...
Price: $1999.00

I have to ask those more knowledgeable, is this really worth 2 grand?

No.. or better yet, No way in hell!

Other than quicker revving for matching revs to shift, lightened flywheels help acceleration mainly in lower gears. The 135i already seems to have traction issues in 1st and 2nd gears. There is no way in hell I'd pay more than $700-800 for it. Even at that price it wouldn't be worth the installation labor.

I will also add that my current car has gear rattle noise at idle with a light flywheel installed. A porsche GT3 makes the same gear rattle noise because it comes with a light flywheel.

[WhiteOne]

The throttle response would be quicker but not as smooth. $2000 is insane. IMHO

[coco_m3]

f that.
:middlefin (this is what i do to dinan!)

[crzy4135i]

Originally Posted by silverbullet135i

f that.
:middlefin (this is what i do to dinan!)

Same here but at the same time I'll gladly buy their software.

[coco_m3]

software is worth it.
but not a freggin flywheel.

[ArBrnSnpr]

Thats a rediculous price for a flywheel

[Charles1]

dual-mass flywheels prevent rattle.

[absoluzer0]

Lighter flywheels are better on the road course than on the street. The point of a heavy flywheel is to cushion the drivetrain from the contant pulsing of the engine combustion. On the street with stop and go traffic, you'll probably run into more headaches than needed. With the lighter flywheel, the inertia needed to keep the flywheel spinning for smooth engagement is reduced. I highly doubt that anyone would truly utilize the need for a lighter flywheel especially if the car is a daily driver.

[F0Bman]

Performance flywheels? Awesome!

[WhiteOne]

Everything Dinan sells is way overpriced. I do not think they will be big in this business much longer. Call it a hunch. YOMV But I didn't think people would pay for radio and look at what happened to sat radio stocks. $2000 for this and $2000 for that. There whole business is based on sales to rich people. I wonder what % of N54's will get their tune. When the car warranty expires there warranty expires to doesn't it?

[E82tt6]

Wow.....

That is INSANE. They don't even tell you how much it weighs...

[crzy4135i]

Originally Posted by WhiteOne

Everything Dinan sells is way overpriced. I do not think they will be big in this business much longer. Call it a hunch. YOMV But I didn't think people would pay for radio and look at what happened to sat radio stocks. $2000 for this and $2000 for that. There whole business is based on sales to rich people. I wonder what % of N54's will get their tune. When the car warranty expires there warranty expires to doesn't it?

They will remain in business as long as bmw dealers sell their parts. Most people pay more to buy dinan because it retains a warranty. I wonder how many people buy expensive dinan parts for a car already out of warranty?

[Crowley]

Originally Posted by WhiteOne

The throttle response would be quicker but not as smooth. $2000 is insane. IMHO

[MZWIE]

As usual Dinan is really proud of their stuff. And as I have said many times before with Dinan.

The dollars over gains equation is really bad.

[timt]

Seems like it is just an issue of paying for what you want. It does seem like a $2000 flywheel + pretty expensive labor is a bit much for a car that would spend more time on the street than the track. For the right customer this may be worth it. However, the engine tune is pretty good to a wide audience (expensive but $$/reward is not horrible.)

I had a Dinan S package for my E46 m3 comp and was very happy with the price vs payoff. They did a nice package deal which swapped exhaust, ECU, air intake, strut brace, and a couple other little tweaks for around $4k. It was a nice improvement for a good price - with warranty and dealer install.

[adc]

Originally Posted by WhiteOne

Everything Dinan sells is way overpriced. I do not think they will be big in this business much longer. Call it a hunch.

If you knew how long Dinan has been in business and how expensive their stuff has always been, you'd eat your hunch. :iono:


I agree that $2k is a lot to pay for a flywheel, but there's no other one available yet as far as I know. Even in the past, other tuners which had flywheels (UUC, Rogue etc.) replaced the flywheel with one of a different design (single mass vs. the OEM dual mass), which led to rattles at idle and other vibrations.

Not to mention that by the time UUC came out with a flywheel for my ZHP, I was already selling it...

Dinan seems to be a lightened OEM wheel, which should bode well for vibrations and rattles (or lack thereof).

The other big problem with flywheels is that you will spend another $600-1000 to install it at a shop, so even a $700 part turns into a $1500 project at the very least. It's usually worth it if you are replacing the clutch for any reason.



You cannot say it's overpriced unless you compare it with something else - at this point, is there anything else?

[Rye]

So they just took the stock part, lightened it, and sells it for $2k. Wow. I could maybe see the $2k being somewhat of a deal if it was a true Dinan part, but a modified stock part? No thx.

[WhiteOne]

BMW has dropped Dinan haven't they?
Would this cut into their sales?
Couldn't you machine your own flywheel for less?
Do they sell anything that you can't get somewhere else for less?
Shark Edit is a remap isn't it?
They will sell you a $2000 warranty that is good for 50K miles if you only mod your car with their stuff.
It is your money. Spend it anyway you want.

[adc]

Originally Posted by WhiteOne

BMW has dropped Dinan haven't they?

They never "held" Dinan, merely tolerated them. Recent rumors have it that some BMW dealers are no longer Dinan dealers - perhaps because of BMW pressure, who knows.

Couldn't you machine your own flywheel for less?

Sure, you'd have to buy one first - my guess the OEM one is around $1000, give or take. A machine shop might charge a few hundred dollars to punch some holes in it. :wink:

But I am not sure they will test and perhaps replace other flywheel components (springs, whatever) to keep the stock one's vibration dampening characteristics. Pretty sure Dinan does this retuning work, it's their style, and within their R&D capability.

So yes, you might save money, perhaps as much as $500-700 for hardware, but the end result is unknown. You are essentially performing your own R&D on your own car, at your own risk.

Do they sell anything that you can't get somewhere else for less?

Until Shark Injector comes out, theirs is the only reflash in the US.

Shark Edit is a remap isn't it?

A reflash, yes. Changes the software inside the ECU box.



I don't have any Dinan mods on my car - never had on previous cars either. But I do respect some of the things they do...