[MartyMcFly88MPH]

Dinan stage 2 tune M235ix
Heat soaked quickly after the first run.
Let it sit for 10 mins before shutting the tune off for a baseline (light blue).
91 octane, Denver altitude, AWD.

[MartyMcFly88MPH]

Any input on this? I didn't know what to expect with the altitude and AWD.
I would have liked to see over 300WHP (i'm sure its dyno dependent), but gains of 57WHP and 54WTQ seem good to me. I'm surprised to see more HP gain than TQ.

[CO_Steve]

Confirms what my butt dyno tells me at 6000'. Turning the tune off makes a big difference.

[bryan_G01]

what type of dyno was it, as each one reads differently.

Do you have the DRF files?
Wa this std, sae, uncorrected?

[MartyMcFly88MPH]

Originally Posted by bryan_f22

what type of dyno was it, as each one reads differently.

Do you have the DRF files?
Wa this std, sae, uncorrected?

Originally Posted by bryan_f22

what type of dyno was it, as each one reads differently.

Do you have the DRF files?
Wa this std, sae, uncorrected?

It's a Dynocom. It was uncorrected, as he said he won't correct turbo numbers. Idk much beyond that. I'm new to this dyno stuff.

Here's the temp/pressure that day. It was around 55*.

[MartyMcFly88MPH]

idk why it quoted twice

[mike@x-ph.com]

Your gains are very close to what Dinan has reported on their website

[JP's M2xx]

Thanks for posting this, helps me make my decision for sure.

Funny how all of the detractors are silent in this post since there is a baseline and then results with the tune!!!

[bryan_G01]

Originally Posted by JP's M2xx

Thanks for posting this, helps me make my decision for sure.

Funny how all of the detractors are silent in this post since there is a baseline and then results with the tune!!!

If you do the ROI/TCO on power gains vs price, it's still the most expensive option vs other piggy backs or even flash tune alternatives.

Dinan makes good products, but they charge way to much for their tunes which are conservative at best.

[BEM-S4]

Originally Posted by bryan_f22

If you do the ROI/TCO on power gains vs price, it's still the most expensive option vs other piggy backs or even flash tune alternatives.

Dinan makes good products, but they charge way to much for their tunes which are conservative at best.

Do your calcs factoring in some sort of problem and the Dinan "premium" disappears very quickly once the warranty is used. It's the same old argument of whether spending $1k extra to maintain a warranty on a $50-60k car is worth it to you. Especially when you can get the work all done at a BMW shop for a lot of folks the answer is "yes."

It's basically what 2% price of car for warranty?

You'll notice on older products Dinan drops their prices big time once the cars won't have manufacturer warranty that they need to match any longer.

[Mr Carrots]

I'm confused, those stage 2 numbers are what I would expect the stock to be putting to the wheels?

[JP's M2xx]

Originally Posted by bryan_f22

If you do the ROI/TCO on power gains vs price, it's still the most expensive option vs other piggy backs or even flash tune alternatives.

Dinan makes good products, but they charge way to much for their tunes which are conservative at best.

I only agree with you if money is no object. I don't have the extra money laying around to pay for a major repair should something ever go wrong.

Are there alternatives that are far cheaper and make more power, absolutely. I have been trying to decide which way to go for the past two months and I am finding that I can't get myself to potentially give up the warranty.

[mike@x-ph.com]

Originally Posted by JP's M2xx

I only agree with you if money is no object. I don't have the extra money laying around to pay for a major repair should something ever go wrong.

Are there alternatives that are far cheaper and make more power, absolutely. I have been trying to decide which way to go for the past two months and I am finding that I can't get myself to potentially give up the warranty.

Sounds like you know what you want. We offer Dinan, let me know if i can help

[BEM-S4]

Originally Posted by JP's M2xx

I only agree with you if money is no object. I don't have the extra money laying around to pay for a major repair should something ever go wrong.

Are there alternatives that are far cheaper and make more power, absolutely. I have been trying to decide which way to go for the past two months and I am finding that I can't get myself to potentially give up the warranty.

More power isn't always great either. I mean it is but equally important is power delivery. Dinan does a nice job of OEM+ performance and doesn't require any tweaking.

[bryan_G01]

Have i seen a Dinan stage 3 car completely blow up, than sit in the dealer for 3 months while bmw takes their time putting in the paperwork, getting the right ppl to come in and look at it, absolutely.

Have I seen an independent shop fix the same issue in under 2 weeks for under $2k, yes. And how much in difference was the dinan tune vs the flash or jb4? A few thousand... so it all evens out.

We can argue all day about the warranty vs power vs cost... If you blow a tranny, a turbo, or any high cost item the warranty makes sense. But this goes to how you drive and maintain the car. Take care of it, it will take care of you.

I was Dinan stage 3. And after all that money, it was still speed limited to 135mph since it came with runflats. So i ripped out the tune and went with a flash instead.

Resale of Dinan is ridiculously low, I got 1/3 of what i paid for it. Other tunes you can get much more when its time to sell it.

If i could do it again, i would purchase the Dinan hard parts, but go with a flash tune off the bat. Save myself a few thousand for tires or more brake pads and rotors.

but thats just me...

[JP's M2xx]

Originally Posted by bryan_f22

Have i seen a Dinan stage 3 car completely blow up, than sit in the dealer for 3 months while bmw takes their time putting in the paperwork, getting the right ppl to come in and look at it, absolutely.

Have I seen an independent shop fix the same issue in under 2 weeks for under $2k, yes. And how much in difference was the dinan tune vs the flash or jb4? A few thousand... so it all evens out.

We can argue all day about the warranty vs power vs cost... If you blow a tranny, a turbo, or any high cost item the warranty makes sense. But this goes to how you drive and maintain the car. Take care of it, it will take care of you.

I was Dinan stage 3. And after all that money, it was still speed limited to 135mph since it came with runflats. So i ripped out the tune and went with a flash instead.

Resale of Dinan is ridiculously low, I got 1/3 of what i paid for it. Other tunes you can get much more when its time to sell it.

If i could do it again, i would purchase the Dinan hard parts, but go with a flash tune off the bat. Save myself a few thousand for tires or more brake pads and rotors.

but thats just me...

I didn't know we were arguing!!!

I am coming from a '15 Mustang and have owned and raced various Mustangs since '89. Even the best maintained cars when pushed break parts, which I know you know. Your car is very impressive and part of me wants to do a flash or JB4 but I'm trying to do the "more logical" thing here and add some power with some peace of mind if that makes sense.

I know I can get more power out of a flash or piggyback tuner but in reality, I have been 9's, this car isn't going to do that and that isn't why I bought it. I just want it to be a bit more than the next one and be able to surprise some people at the "stoplight" drags and have fun on my twisty roadsl

[bryan_G01]

I have a notch fox body on a 200 shot.
9's all day.

https://www.facebook.com/bryanduncan...3017740941649/

[Drpoomanchu]

Originally Posted by bryan_f22

I have a notch fox body on a 200 shot.
9's all day.

https://www.facebook.com/bryanduncan...3017740941649/

Nice...

[MartyMcFly88MPH]

Originally Posted by Mr Carrots

I'm confused, those stage 2 numbers are what I would expect the stock to be putting to the wheels?

I think its a combination of AWD (20-25% loss), altitude of 5280', and potentially a low reading dyno. I would have liked to see higher numbers too, but the difference between baseline and the top run are what really matter.

[XutvJet]

Originally Posted by BEM-S4

More power isn't always great either. I mean it is but equally important is power delivery. Dinan does a nice job of OEM+ performance and doesn't require any tweaking.

This is what I love about the Dinan Stage tunes. Their systems tap into way more systems than that from BMS and the like. Sure, the Dinan stuff is more conservative, but that's done by design because they know there are limitations to the piggybacks and pushing things hard can lead to inconsistent power and driveability. If you're out to chase numbers then the JP4 is the way to go for a piggyback. There's no doubt that flash tunes are the way to go, BUT you're really up a creek if you have DME issues and/or BMW needs to peer inside the DME, update, etc. You're basically f-ed at that point.

If I tune my car, it will be a Dinan Stage 2 unit. I've had my M235 6MT for 1.5 years and is stock. I'm not sure adding more power to it will make it a more enjoyable car as it easily lights up the tires in 1st, in 2nd from a 3,500rpm punch, and even sometimes in 3rd. This is on well-treaded staggered MPSS tires too. In sub 60 degree temps, full traction is even more problematic. If anything, I may just go with an 3.23 or 3.46 gear LSD and a downpipe and maintain all out motor reliability while improving gearing and improving acceleration and traction a bit. IMO, adding a ton of power to these cars can negatively impact their overall fun factor. I'm past the days of worrying about being the fastest on the streets. I want something I can use on the streets, have fun with, and push relatively safely.

Plus, being a turbo BMW and a snorty exhaust and modded looks, most every gear-head I come across assumes it's heavily modded and pushing 500hp and runs 11s. I'll let them believe that. LOL

[Benandluna]

I love my set up. The stage two has turned out to be perfect with my set up. If I go more, it'll be stage 4

[icin235]

I just dyno' d my 2015 M235i 6 speed. I has Dinan Stage II and a Fabspeed Sport Cat. I wanted a reliable tune and got a DS2 used for cheap.
I don't have any baseline numbers. This is on SoCal 91 octane.

With a 15% drivetrain loss, this is 373HP and 438TQ.
Car is plenty fast for my daily commute and occasional track day.