[RMRC]

Originally Posted by Kelvin1000

I don't know if it is because the 335i with the Dinan flash has so much torque at mid-range

You're right, it feels this way because of the gobs of torque at low rpm. I think a Dinan tuned 335 and 997 CS are about even from a dig and roll but the 335 will feel faster because of that big torque.

[Wicked_SVT]

Originally Posted by Orb

I have to agree this been a trouble free upgrade. I got my 3rd identical DTC failure this week and yet another BMW software upgrade. The Dinan software was reinstalled for free as expected.

The throttle response is still my favorite part of the upgrade. Nothing is more fun having a LSD and being able to swing the rear end around for precision drifts. I couldn’t do this constantly with the stock car. The AT is a lot smoother now but the BMW v27.xx software makes a big difference in any case. My gas mileage went for about 11.8 MPG to 13.4 MPG. I am wishing for bit more top end (6200+ RPM) but no complaints at all.

I’m getting Stage II with Intercooler as soon as it comes out and been told it will have a lot more top end. I’m trying to get a release date this week.

Orb

I too am looking forward to the release of the stage II. The big question that I have is when they release Stage II will they now require you to purchase the oil cooler to maintain their warranty?

[Orb]

Originally Posted by Wicked_SVT

I too am looking forward to the release of the stage II. The big question that I have is when they release Stage II will they now require you to purchase the oil cooler to maintain their warranty?

Just the factory or Dinan oil cooler is required. The intercooler is tied to the stage II package as I know today. They are using a Spearco core but it not going to the same as what you can buy so it will have more frontal area. I’m sure they are going with the route of reducing pressure drop to get more out of the turbo. There no other way to get more power if the turbos are close to over spooling. There suppose to be a cold air intake as well but it doesn’t interest me much.

I kind of surprised Dinan (or anyone else) haven’t done an AT cooler yet. Being smart about this you actually reduce the coolant temperature since your dealing with two heat exchangers.

Orb

[geeman]

Bubbles, How did you buddy get BMWNA's blessing? Was it in writing?

[Bubbles]

Originally Posted by sflgator

I know this guy; he's a nice guy, but he just made the mistake of denying the piggyback was on his car when he specifically asked his SA to "please clear my codes" without any explanation. This was way before v2, when v1.4x bypassed the solenoids and things were much more obvious. His repeated denial just made the dealer frustrated and angry, and they made him pay for the service and tried to void his warranty (not sure if they offically voided his warranty through BMWNA or not).

What he should've done (which I told him after it happened) was to go to a local tuning shop to have the codes cleared. Anyway, that happened about 1 year ago and AFAIK, it only happened one time to one guy. And yes, it happened at a "mod-friendly" dealer who would have most likely not given him any trouble had he come clean with his mods in the first place.

sflgator, from my discussions with the Tech I do not believe this is an isolated case, regardless I just passing the information along.

[sflgator]

Originally Posted by Bubbles

sflgator, from my discussions with the Tech I do not believe this is an isolated case, regardless I just passing the information along.

It is; I know the dealer, the SA, and the whole story from the guy.

[Bubbles]

Originally Posted by sflgator

It is; I know the dealer, the SA, and the whole story from the guy.

It's not who you think it is. The guy I was speaking to is not "our" guy. I sent you a PM.

[Bubbles]

Originally Posted by Orb

Just the factory or Dinan oil cooler is required. The intercooler is tied to the stage II package as I know today. They are using a Spearco core but it not going to the same as what you can buy so it will have more frontal area. I’m sure they are going with the route of reducing pressure drop to get more out of the turbo. There no other way to get more power if the turbos are close to over spooling. There suppose to be a cold air intake as well but it doesn’t interest me much.

I kind of surprised Dinan (or anyone else) haven’t done an AT cooler yet. Being smart about this you actually reduce the coolant temperature since your dealing with two heat exchangers.

Orb

Orb, I will let you be the guinea pig on this one. Thanks for the update.

[twin turbo]

Awesome write up.

[BMW///Motorsport]

I am getting the Dinan flash asap... I cant take it anymore, i want that power. this write-up put me over the top.

[e90AW335i]

Originally Posted by BMW///Motorsport

I am getting the Dinan flash asap... I cant take it anymore, i want that power. this write-up put me over the top.

Congrats! You should do a before and after dyno....

[Bubbles]

Originally Posted by e90AW335i

Congrats! You should do a before and after dyno....

Dynos are like crack to ya! You just can't get enough.

[e90AW335i]

Originally Posted by Bubbles

Dynos are like crack to ya! You just can't get enough.

Dont tell me how to live my life!!!! LOL...

I just want to see some more dynos of the Dinan tune. Especially before and after....

[Brandon26pdx]

I'm skeptical as to how much more power they can wring out of the stock turbos and fuel delivery system. The reflash (and the latest piggys) bring the boost up to about max I would guess they would be useful for.

[sambonator]

So what you are saying is, when you bring in the car for service, leave the procede/jbs2/xede/etc in there and tell them its there?

[Bubbles]

Originally Posted by sambonator

So what you are saying is, when you bring in the car for service, leave the procede/jbs2/xede/etc in there and tell them its there?

No, it was a mere opinion of one "mod-friendly" Tech, as I don't "piggy."

[trueblue]

I also recently had the Dinan reflash done on my 08, but I have to say I am completely disappointed at the result.
Here is what I have found, from the start it feels like the car is not even boosting until passing 3.5k mark. The whole point of the small twin turbos is to reduce lag and the stock car has done that quite well. Power was available from 1400 rpm but now it's gone. It's almost like Dinan puposely held back the turbos from spooling up until 3.5k rpm.
Once you get into it the power does NOT feel like the claimed 90 hp and 120 f-lb increase at all. At nearly 400 hp and 421 ft-lb of torque the car should not feel like it is struggling or stressing at any point from 1400 to redline.
I am going to talk to the Dinan dealer and have the car dynoed to verify (for some reason the dealer advises against getting on the Dyno, siting not enough airflow can be supplied for valid results?)
We'll see.

[double35]

Wow. Sorry to hear that. Not my experience. I'd say it's smooth in low rpm's, but not weak. And I can't believe the thrust as the rpm's increase.

I never heard of +90 hp and 120 ft/lb increases. I thought it was 50 and 70 or so.

[trueblue]

"The results of Dinan’s tuning are nothing short of breathtaking, with the added boost and related recalibration producing maximum output of 384 horsepower at 5700 rpm and 421 lb-ft torque at 4300 rpm."

Taken directly from the Dinan website. With stock numbers listed at 300/300, the gain claims made by Dinan is 84 hp/121 tq.

According to the press release, the posted gains begins at 2500 rpm with 29 hp and 62 tq. It is certainly not felt in my car at all.
If anyone here has already done a dyno, please post the graph. I know Dinan is a reputable company but with everything I have seen and read I still did not see a comparative dyno graph of the power improvement on 07 or 08 car yet.

[trueblue]

Correction on my part, based on the Dinan dyno results the stock 335 engine output is 332 / 327 which is higher than the published 300 / 300 so the max gain would be 79 hp/96 tq

My butt dyno really does not feel the claims being made here.

[Orb]

Originally Posted by trueblue

"The results of Dinan’s tuning are nothing short of breathtaking, with the added boost and related recalibration producing maximum output of 384 horsepower at 5700 rpm and 421 lb-ft torque at 4300 rpm."

Taken directly from the Dinan website. With stock numbers listed at 300/300, the gain claims made by Dinan is 84 hp/121 tq.

According to the press release, the posted gains begins at 2500 rpm with 29 hp and 62 tq. It is certainly not felt in my car at all.
If anyone here has already done a dyno, please post the graph. I know Dinan is a reputable company but with everything I have seen and read I still did not see a comparative dyno graph of the power improvement on 07 or 08 car yet.

How long have you had the tune? You’re not the first to complain as it takes several days or 200 miles to adapt and you have to run through the full power band numerous times. Run it hard it 2nd thru 4th and it will adapt faster. You will now it when it does as there lot more torque. There another thread here were someone said the same thing and few days later he said the opposite. The gains are 46 whp (55 hp flywheel) and 79 wtq (88 ft-lb flywheel). The other numbers you looked at are the largest difference in power within the full RPM range.

[DSe93]

great write-up... I'm really looking forward to the Dinan upgrade that I recently read about (something to do with ReFlash + Intercooler)... but it was just a post on here, not solid info yet...

Originally Posted by Bubbles

one customer said with a straight face "What's an ECU?"

HAHAHA