[OpenFlash]

Originally Posted by 91Octane

Can we see your trunk mounted setup?

Sure. I'll post one up later this week. Currently running a 2.5g bottle in my trunk but will be switching over to the new baffled 5g AEM bottle on Thurs/Fri.

[OpenFlash]

Originally Posted by jippii ensio

Can't upgraded twins run single's firmware if flashed the same way as single?

The upgrade twins can't run the same firmware as the single turbo. Many changes to boost control/meth logic/throttle control that are specific to single turbo applications. To use the 3.5 add on sensor for twin turbo cars, we'll have to write new twin turbo firmware which we can and will do once we get caught up with some other goals. But like I said, there isn't much to gain from running the upgraded twins at higher (22+psi) boost). The turbine housings are very incredibly restrictive when supporting that kind of boost and high RPM. And I'm not sure how useful/stressful it is to have 600lbft of torque at 4000rpm.

[King mode]

I must say, i'm impressed with the stock injectors / pump to handle this kind of power. Have you ever changed out injectors to something larger on the n54?

[JamesM3M5]

Originally Posted by King mode

I must say, i'm impressed with the stock injectors / pump to handle this kind of power. Have you ever changed out injectors to something larger on the n54?

Direct injection - there is only one injector available for this application, currently. I don't expect to see any upgraded DI injectors for a long time, if ever. N54 injectors are used on the N63 twin-turbo V8 as well.

[Q4P]

Originally Posted by shiv@vishnu

The upgrade twins can't run the same firmware as the single turbo. Many changes to boost control/meth logic/throttle control that are specific to single turbo applications. To use the 3.5 add on sensor for twin turbo cars, we'll have to write new twin turbo firmware which we can and will do once we get caught up with some other goals. But like I said, there isn't much to gain from running the upgraded twins at higher (22+psi) boost). The turbine housings are very incredibly restrictive when supporting that kind of boost and high RPM. And I'm not sure how useful/stressful it is to have 600lbft of torque at 4000rpm.

I can definitely agree with the above... that much tq at 4000 rpm would crumple an At tranny and make a manual even harder to drive. The power delivery is linear and great... I just have an issue with how it will be put down to the ground but that depends entirely upon the end user and their goals. I personally would choose the absolute smallest kit with an AT and cap it around 560-570 whp to keep it very driveable with a full suspension upgrade of course. That should should be good for consistent high 120 traps...

[N111CUK]

Originally Posted by shiv@vishnu

The upgrade twins can't run the same firmware as the single turbo. Many changes to boost control/meth logic/throttle control that are specific to single turbo applications. To use the 3.5 add on sensor for twin turbo cars, we'll have to write new twin turbo firmware which we can and will do once we get caught up with some other goals. But like I said, there isn't much to gain from running the upgraded twins at higher (22+psi) boost). The turbine housings are very incredibly restrictive when supporting that kind of boost and high RPM. And I'm not sure how useful/stressful it is to have 600lbft of torque at 4000rpm.

Hi Shiv, please correct me if I'm wrong but if we look at the TQ of a 335d its insain when modified and am I right in thinking that the drive train strength is the same on the 335i as the 335d? That being true we could safely add more TQ to the stock drivetrain with this modification.

[jippii ensio]

Originally Posted by N111CUK

Hi Shiv, please correct me if I'm wrong but if we look at the TQ of a 335d its insain when modified and am I right in thinking that the drive train strength is the same on the 335i as the 335d? That being true we could safely add more TQ to the stock drivetrain with this modification.

Its different.

[beemerboy305]

Originally Posted by shiv@vishnu

It is possible. In fact, I did that for the first 5k miles of running the single turbo. I switched to trunk mount primarily for the added flow benefits which comes into play when flowing more than 1000cc/min (4 nozzles). At these high flow levels, you really need the pump gravity fed by the bottle (mounted close by).

Shiv

Question sorry i its been asked thread blew up so fast lol. if you were to just buy the small kit u need to upgrade axles and clutch will it hold ? It my dd so I'm jw. I don't wana run meth. Or spend extra 1500$ on axles I don't track or act like a idiot at a stop light maybe wit this kit I will 😱😱😱

[Sniz]

Originally Posted by shiv@vishnu

Sure. I'll post one up later this week. Currently running a 2.5g bottle in my trunk but will be switching over to the new baffled 5g AEM bottle on Thurs/Fri.

thats a big tank!

[The Ghost]

Originally Posted by beemerboy305

Question sorry i its been asked thread blew up so fast lol. if you were to just buy the small kit u need to upgrade axles and clutch will it hold ? It my dd so I'm jw. I don't wana run meth. Or spend extra 1500$ on axles I don't track or act like a idiot at a stop light maybe wit this kit I will 😱😱😱

You don't want to go off on your daily. I've been there many times.

If this is your only car, I would buy a $3k beater first.

[Lulz_M3]

Any chance you will offer the ability to stack the procede ontop of Cobb for this? This will allow your end users even great functionality/levels of safety.

[OpenFlash]

Originally Posted by Lulz_M3

Any chance you will offer the ability to stack the procede ontop of Cobb for this? This will allow your end users even great functionality/levels of safety.

How would that be more functional/safe?

[turugara]

Originally Posted by turugara

Is there a scheduled test to take one of these single turbo 335i's out to a road course and see how well it holds up during extended WOT? Especially on hot Cali tracks.

Bump

This got lost in the suspension argument in a turbo release thread

[Lulz_M3]

Originally Posted by shiv@vishnu

How would that be more functional/safe?

Functional/Safe because more parameters could be controlled directly via the DME, while retaining the PROcede for boost control and the usual foray of Piggyback features, gauge hijacking, NLS, Launch control etc.

[dbjb]

Originally Posted by turugara

Bump

This got lost in the suspension argument in a turbo release thread

I doubt it. It seems most just go to the drag strip. Although, I would love to see it!

[OpenFlash]

Originally Posted by Lulz_M3

Functional/Safe because more parameters could be controlled directly via the DME, while retaining the PROcede for boost control and the usual foray of Piggyback features, gauge hijacking, NLS, Launch control etc.

What parameters are you referring to? The only things that the DME no longer directly controls is throttle blade and boost control. Both of which the Procede does much better and safer.

[hemi to e90]

would there be any sense in custom tuning? i think thats whats meant when referring to cobb

[OpenFlash]

I've been subjecting our test car to some pretty harsh tests over the last 12 miles. Including back to back dyno pulls, repeated 0-170 mph runs, hard sustained driver and I have yet to see oil temps even rise as they would with stock and upgraded twins making considerably less power. This is most likely do the much power backpressure levels seem with the single as well as the removal of the cast heat sink (stock exhaust manifold/ turbod) which used to be bolted directly to the cylinder head.

The single turbo did car see 10min of run time at Thunderhill a few months back (80f deg day) and held up far better than it has ever before. This was during a mid-day instructor session so the run was uninterupted. Brakes went away well before anything else showed signs of problems. Of course, I didn't run at 650whp/24-25psi since that is futile without racing slicks. But even at 15psi, it was making well over 450hp. Oil temps didn't even get high enough to drop boost target. So I'd say it did very well. Will be spending a weekend at Laguna seca in the fall and will be able to get a lot more seat time then. It should be a blast now that the JRZs are installed and dialed in

[Brey335i]

Do you adjust the boost you want in the same way as the regular twin turbo? By that I mean just plug in the laptop.

Just wondering if it's possible to quickly make a low boost map for when you are at a track.

[Lulz_M3]

Originally Posted by shiv@vishnu

What parameters are you referring to? The only things that the DME no longer directly controls is throttle blade and boost control. Both of which the Procede does much better and safer.

So PROcede no longer has influence over Timing or AFR? Are you flashing the base fuel pressure/load targets?

[OpenFlash]

Originally Posted by Brey335i

Do you adjust the boost you want in the same way as the regular twin turbo? By that I mean just plug in the laptop.

Just wondering if it's possible to quickly make a low boost map for when you are at a track.

Yes, the same exact way. You can on-the-fly adjust the same user adj values as twin turbo Procede users (start boost, ignition correction, OL fuel, etc). It's all the same as far as user tunability goes. But in this case, you're not trying to make max power which is a nice change

[OpenFlash]

Originally Posted by Lulz_M3

So PROcede no longer has influence over Timing or AFR? Are you flashing the base fuel pressure/load targets?

The Procede still adjusts AFR targets, timing and fuel pressure. Both on and off meth to difference degrees. But offset are smaller since the DME has been reflashed to follow a more appropriate ignition advance and lambda tables. Again, everything is pretty conservative (esp the timing tables) since we don't know many people who need to make over 630-650whp. We found a nice happy spot where the car makes heaps of power without needing to be aggressive in any particular area.