[DrKevM5]

I had the upgrade installed two weeks ago, but since they had issues loading the software, I wanted to give the ECU a chance to adapt just in case it needed it. 93 octane, Fabspeed 200 cel, Eventuri intake. On his dyno, that computes to 466.85. I also installed the Dinan coilovers that truly transforms the handling. Very happy with my investment. Dinan, for me, is worth every dollar. Quality engineering and development ain't cheap!

[omasou]

Originally Posted by DrKevM5

I had the upgrade installed two weeks ago, but since they had issues loading the software, I wanted to give the ECU a chance to adapt just in case it needed it. 93 octane, Fabspeed 200 cel, Eventuri intake. On his dyno, that computes to 466.85. I also installed the Dinan coilovers that truly transforms the handling. Very happy with my investment. Dinan, for me, is worth every dollar. Quality engineering and development ain't cheap!

What made you choose the Dinan HAS over say the MP coilovers?

Is your graph in 4th or 5th gear?

[DrKevM5]

Originally Posted by omasou

What made you choose the Dinan HAS over say the MP coilovers?

Is your graph in 4th or 5th gear?

Reviews and price point. I initially installed H&R springs for looks a year ago, but I wanted to wait until more coilover systems were developed. I've always felt that a trade off with ride quality was to be expected. When the reviews came out on the DINAN system that stated that the ride quality was actually improved I was sold. Ride quality is actually better than stock. Dyno performed in 5th gear.

[No Boost]

The tune feels very OEM, doesn't it? Similar turbo lag compared to stock, perhaps even less with the DP but it pulls seamlessly hard to just about redline. It's a long shot but I'm hoping Dinan releases a stage 5 tune that increases the hp/tq by just a smidge while still being compatible with our hardware. I've grown quite comfortable with the added ~100 bhp.

As it pertains to the coilovers, I've considered them but feel the stock suspension is good enough for spirited street driving. Additionally, the M2 has very little wheel gap from the factory unlike the M3/4. BMW still hasn't resolved that eyesore in the car's 4th year of production.

What exhaust are you running?

[DrKevM5]

Originally Posted by Stage IV

The tune feels very OEM, doesn't it? Similar turbo lag compared to stock, perhaps even less with the DP but it pulls seamlessly hard to just about redline. It's a long shot but I'm hoping Dinan releases a stage 5 tune that increases the hp/tq by just a smidge while still being compatible with our hardware. I've grown quite comfortable with the added ~100 bhp.

As it pertains to the coilovers, I've considered them but feel the stock suspension is good enough for spirited street driving. Additionally, the M2 has very little wheel gap from the factory unlike the M3/4. BMW still hasn't resolved that eyesore in the car's 4th year of production.

What exhaust are you running?

Throttle response does seem OEM, excepts it pulls STRONG to redline. I'm getting wheel spin in third gear! Problem for me now is properly putting the power down. I'm running 295s on the rear and I need more. Should hopefully be better with the RE71r on the track. I agree the stock suspension is good, but I get reduced body roll and height adjustability with this coilover system which I like. I think I'll go to the thicker Dinan roll bars next. Stock exhaust. The Fabspeed makes it sound SO good. Not trying to terrorize the neighborhood.

[CSL_E36]

These look like stock turbo numbers.

I have the following,
ER catless DP
ER Intercooler with TIC and chargepipe
Dinan full exhaust
Dinan intake
Rktunes flash

Its not my dyno below, but a similar modded m2 without IC put down these numbers over a jb4. I expect 375whp and 420wtq on a local dynojet.

[DrKevM5]

Dinan tune is a tad less aggressive than many other tunes, and the Dinantronics adjust more parameters for safety. Clearly you can get much higher levels with others. I like the comfort of warranty coverage so I'm satisfied with the numbers.

[CSL_E36]

Originally Posted by DrKevM5

Dinan tune is a tad less aggressive than many other tunes, and the Dinantronics adjust more parameters for safety. Clearly you can get much higher levels with others. I like the comfort of warranty coverage so I'm satisfied with the numbers.

Sorry dont mean to take a dump on your post, just putting more info out there for others.

The Dinan is less aggressive, but please, dont spread info that a piggy back has more control vs a ecu flash. Jordan has been playing with 1s and 0s on bmw dmes for over a decade and hes in his 20s. My car feels stock until you tip the throttle over 50% and pulls hard to 7k, also retains all the factory safegaurds for limp mode regarding high oil and water temps, and due to our fueling limitations, my tune is considered "conservative".

The dinan does offer peace of mind of warranty, no argument there, enjoy your setup in good health!

[mrcheezle19]

Originally Posted by CSL_E36

These look like stock turbo numbers.

I have the following,
ER catless DP
ER Intercooler with TIC and chargepipe
Dinan full exhaust
Dinan intake
Rktunes flash

Its not my dyno below, but a similar modded m2 without IC put down these numbers over a jb4. I expect 375whp and 420wtq on a local dynojet.

Very Very interested to see your numbers.

[MdMcoupe]

Doc, if i recall correctly, you like your track days. It looks like the dinan "coilovers" are just adjustable spring perches with stiffer springs.

Why did you shy away from the BMW Motorsport coilovers which include double adjustable shocks? I understand they are a grand more, but judging from your beautiful house and car collection that extra grand wouldn't be a concern.

BTW, great results and thanks for the write up.

[BAN_M2C]

Thanks for sharing the info on the build!! Must feel nice!!

[ZM2]

Originally Posted by MdMcoupe

Doc, if i recall correctly, you like your track days. It looks like the dinan "coilovers" are just adjustable spring perches with stiffer springs.

Why did you shy away from the BMW Motorsport coilovers which include double adjustable shocks? I understand they are a grand more, but judging from your beautiful house and car collection that extra grand wouldn't be a concern.

BTW, great results and thanks for the write up.

Curious to hear the OPs input as well, but I went with Dinan bc they have the softest coil over setup for daily driving, and I didn't want to start playing with damper settings at the track while I'm still learning the car and stickier tires, and am focused on seat time.

Very nice ride around town and much flatter at the track. These combined with corner balance and track alignment had me running 2:13s on my first weekend at Watkins Glen.

[SeanWRT]

Originally Posted by CSL_E36

These look like stock turbo numbers.

I have the following,
ER catless DP
ER Intercooler with TIC and chargepipe
Dinan full exhaust
Dinan intake
Rktunes flash

Its not my dyno below, but a similar modded m2 without IC put down these numbers over a jb4. I expect 375whp and 420wtq on a local dynojet.

Ever had a doubt on benchmark making 420lb*ft?

-------------------------------------

Congrats to OP for the strong and linear power delivery!

[CSL_E36]

Originally Posted by SeanWRT

Ever had a doubt on benchmark making 420lb*ft?

-------------------------------------

Congrats to OP for the strong and linear power delivery!

The "benchmark" was a jb4. I suppose the customer wanted to see the gains of a flash vs his jb4, hence the 17wtq delta

[omasou]

Sounds like the best of both worlds.

How does the spring gives a softer ride around town but less lean?

[ZM2]

Originally Posted by omasou

Sounds like the best of both worlds.

How does the spring gives a softer ride around town but less lean?

I think it's just the specific combo of springs and bumpstops they're using. To be more clear, it is rougher over big bumps. That could also be due to my specific corner balance which dropped the front 15mm and the rear 25mm. That's a little more than Dinan suggests.

On small bumps it feels like a better ride bc the Dinan springs are linear and not progressive like the OEM springs. The OEM progressive springs made the car feel more bouncy and unsettled on the small bumps compared to the Dinan setup.

[DragonGate]

Originally Posted by CSL_E36

These look like stock turbo numbers.

I have the following,
ER catless DP
ER Intercooler with TIC and chargepipe
Dinan full exhaust
Dinan intake
Rktunes flash

Its not my dyno below, but a similar modded m2 without IC put down these numbers over a jb4. I expect 375whp and 420wtq on a local dynojet.

As long as you have your baseline number at the end to compare to your own car that's all that matters. Peak numbers at the end of the day mean nothing without a baseline run.
I believe this car didn't have full exhaust/intake nor intercooler, so you probably will have a better dyno number and powerband.

Originally Posted by DrKevM5

Dinan tune is a tad less aggressive than many other tunes, and the Dinantronics adjust more parameters for safety. Clearly you can get much higher levels with others. I like the comfort of warranty coverage so I'm satisfied with the numbers.

Dinan is less aggressive thats their marketing scheme, dinan has no adjustment of parameters only tricks as its the nature of a piggyback.

Originally Posted by CSL_E36

Sorry dont mean to take a dump on your post, just putting more info out there for others.

The Dinan is less aggressive, but please, dont spread info that a piggy back has more control vs a ecu flash. Jordan has been playing with 1s and 0s on bmw dmes for over a decade and hes in his 20s. My car feels stock until you tip the throttle over 50% and pulls hard to 7k, also retains all the factory safegaurds for limp mode regarding high oil and water temps, and due to our fueling limitations, my tune is considered "conservative".

The dinan does offer peace of mind of warranty, no argument there, enjoy your setup in good health!

Once again thank you, a lot of folks have been saying this but the Dinan followers that believe their Marketing hype still continue to think Dinan has a f**king clue when it comes to Tuning lol.

Originally Posted by SeanWRT

Ever had a doubt on benchmark making 420lb*ft?

-------------------------------------

Congrats to OP for the strong and linear power delivery!

Linear power delivery? LOL you missed the negative numbers in the Dyno which makes it look like its linear. "How to read Dyno 101"

[UltraMagneticAL]

Originally Posted by omasou

Sounds like the best of both worlds.

How does the spring gives a softer ride around town but less lean?

probably progressive spring rates. softer for small road bumps, but the further the spring is compressed (ie leaning into a corner) the stiffer they become.

[BruceM]

Originally Posted by UltraMagneticAL

probably progressive spring rates. softer for small road bumps, but the further the spring is compressed (ie leaning into a corner) the stiffer they become.

One would think, but nope. They are linear springs. See post # 30, from Dinan, in this thread:

http://f87.bimmerpost.com/forums/sho...1371219&page=2

[SeanWRT]

Which flows better on a EWG n55? IC+DP+Turbo Inlet, or IC+Stg1(Dinan) turbo?

Inlet picks up some efficiency from compressor end and dp removes a lot restriction at turbine side, while Dinan bigger turbo uses enlarged compressor to improve efficiency at higher boost. So it's hard to tell how they compare right?

Stage 4 kit (turbo+IC) would have put down 360-365whp(DCT) on stock downpipe. This is a bold idea - you probably will run stage 4 software just fine with IC+DP+inlet pipe, on stock turbo. And I have a feeling dp+inlet combo can make very close power to bigger turbo alone.

That being said, that's unless Dinan turbo with compressor tweak really flows 30% more than a EWG turbo, as advertised.