[mob17]

So i'm thinking of fitting a meth kit, but part of me is a bit concerned if my car runs even more torque what the damage could be to my gearbox.

Is there anything that i can do, preventative wise, to the gearbox that would enable it to handle more torque? Any parts i could replace for stronger ones?

[BB_cuda]

seek guidance from the banned one, bohldiesel dot com

[NC335d]

Originally Posted by mob17

So i'm thinking of fitting a meth kit, but part of me is a bit concerned if my car runs even more torque what the damage could be to my gearbox.

Is there anything that i can do, preventative wise, to the gearbox that would enable it to handle more torque? Any parts i could replace for stronger ones?

I am running hybrid turbos and have a meth kit installed running a stock transmission. The meth kit is made by AEM with an upgraded controller that does not have a boost nozzle running to it but has a MAP sensor instead. I have 2 nozzles, a 1000 CC nozzle and a 500 CC nozzle. The car was out on the dyno today and produced 435 rwhp and 655 ft.lbs of rwtq.

The only thing that I have done to the transmission is change the fluid/ filter, the mechatronics seal/sleeve and several of the other seals and the transmission is performing fine.

I think a lot has to do with the tune that you are running and when the torque converter nannies kick in.

The banned one is the only one that I know of Stateside that is running a modified/built tranny. Not sure who is out there in Europe that can help you with this. What are the guys at Madness Motorsport and ProfiTuning running on their modified 335d cars with hybrid turbos? As far as I know they are running stock transmissions.

[BMW335D88]

nc335d , why you upgrade the controller? the AEM controller is not good?

[NC335d]

Originally Posted by BMW335D88

nc335d , why you upgrade the controller? the AEM controller is not good?

No,the one that came with the kit was not sufficient enough dealing with the 40 lbs of boost that I was pushing at full throttle. Whilst testing and fine tuning the car on the street the boost vacuum line popped off. The upgraded boost controller accommodates higher boost levels in addition to utilizing a MAP sensor as opposed to a boost vacuum line to measure boost hence initiating the water/meth pump.

[Chief Orman]

Originally Posted by NC335d

No,the one that came with the kit was not sufficient enough dealing with the 40 lbs of boost that I was pushing at full throttle. Whilst testing and fine tuning the car on the street the boost vacuum line popped off. The upgraded boost controller accommodates higher boost levels in addition to utilizing a MAP sensor as opposed to a boost vacuum line to measure boost hence initiating the water/meth pump.

The AEM kit is superior to the Snow Kit I installed which just uses turbo boost as tapped from the charge air pipe.

[NC335d]

Originally Posted by Chief Orman

The AEM kit is superior to the Snow Kit I installed which just uses turbo boost as tapped from the charge air pipe.

The controller that I am running is an upgraded version from AEM, designed to handle higher boost applications.

[DSB335d]

Aquamist makes a pretty decent kit.

[DWR]

Just want to add some clarity ...
If a proportional controller (not staged system) is running off of boost, it is doing so with a MAP signal, either internal or external. MAPs are rated by their full scale pressure. Clearly a higher rated MAP was needed in NC335d's case. The same controller can work for many different MAPs.

H20/methanol injection provides 1) coolant to control combustion temperatures 2) additional fuel for heat energy. If a fixed boost limit occurs throughout the powerband at full load, a boost signal cannot track any variation in AFR or temperature.

These things are often correlated to MAF or RPM. That is where the AEM controller show's it's superiority. Because the 335d MAF is a frequency based sensor, AEM's frequency signal processing can be used for either parameter. Which is better depends on the specifc application.

[Chief Orman]

Originally Posted by DWR

Just want to add some clarity ...
If a proportional controller (not staged system) is running off of boost, it is doing so with a MAP signal, either internal or external. MAPs are rated by their full scale pressure. Clearly a higher rated MAP was needed in NC335d's case. The same controller can work for many different MAPs.

H20/methanol injection provides 1) coolant to control combustion temperatures 2) additional fuel for heat energy. If a fixed boost limit occurs throughout the powerband at full load, a boost signal cannot track any variation in AFR or temperature.

These things are often correlated to MAF or RPM. That is where the AEM controller show's it's superiority. Because the 335d MAF is a frequency based sensor, AEM's frequency signal processing can be used for either parameter. Which is better depends on the specifc application.

an education as always DWR...wish I had this input before getting the snow kit

[DWR]

Originally Posted by Chief Orman

an education as always DWR...wish I had this input before getting the snow kit

To be honest, I'm not impressed with any of the commercial kits. Both iaknown and I use programmable piggyback ECUs. We can tune flow by adjusting maps. It is not for everyone. TDIwyse uses an RPM signal. That works for him because of the way he has modified the operation of the JBD to also scale with RPM - and he understands exactly what he is doing.

Just to break a paradigm, I'm considering controlling H20 and methanol separately. Obviously, the methanol needs to be treated as a fuel, with safety in mind. Then H20 can be used in closed loop control of exhaust temperature.

[Whitbread]

Originally Posted by DSB335d

Aquamist makes a pretty decent kit.

Agreed. I've installed a few of them and they are top notch. Their controller is a standalone ecu for all intensive purposes. The most current HFS4-v3 version is fully programmable and takes injector duty, rail pressure, and map signal to determine the flow. I dropped them an email last week about installing the system on a 335D and if they had any specific recommendations about grabbing an injector signal with our multiple injection events.

[DSB335d]

Originally Posted by Whitbread

Agreed. I've installed a few of them and they are top notch. Their controller is a standalone ecu for all intensive purposes. The most current HFS4-v3 version is fully programmable and takes injector duty, rail pressure, and map signal to determine the flow. I dropped them an email last week about installing the system on a 335D and if they had any specific recommendations about grabbing an injector signal with our multiple injection events.

I'm somewhat familiar with them from NASIOC. There were a handful of Subaru guys that used those systems.

[Whitbread]

Originally Posted by DSB335d

I'm somewhat familiar with them from NASIOC. There were a handful of Subaru guys that used those systems.

The really nice them about them is operating like a gasoline efi fuel system with constant pump pressure and PWM controlled delivery, you can do one nozzle in front of the turbo and one post IC to get the greatest possible benefits. With the much finer atomization at lower delivery levels, damage to the compressor wheel isn't a concern. It's the route I'll be heading when funds permit.

[DSB335d]

Originally Posted by Whitbread

The really nice them about them is operating like a gasoline efi fuel system with constant pump pressure and PWM controlled delivery, you can do one nozzle in front of the turbo and one post IC to get the greatest possible benefits. With the much finer atomization at lower delivery levels, damage to the compressor wheel isn't a concern. It's the route I'll be heading when funds permit.

Yes. I recall one Sti owner tapping and installing a nozzle at each intake runner. That was back before they started making all the intake manifolds out of plastic. Couldn't find the build thread from the car I was thinking of but here is an Sti w/ an H6 swap; you can see the manifold tapped for 6 nozzles. Also found a picture of a newer Subaru w/ plastic intake tapped for aquamist nozzles. Which leads me to believe that an Aquamist HFS-6 system could be used on the 335d.

[DWR]

Originally Posted by Whitbread

Agreed. I've installed a few of them and they are top notch. Their controller is a standalone ecu for all intensive purposes. The most current HFS4-v3 version is fully programmable and takes injector duty, rail pressure, and map signal to determine the flow. I dropped them an email last week about installing the system on a 335D and if they had any specific recommendations about grabbing an injector signal with our multiple injection events.

Aquamist has been a leader in water injection for quite sometime. Everyone else looks like amatuers compared to them, IMO. The real power of the HFS4-v3 is the ability to take in an auxiliary signal - think exhaust temperature.

Multiple injection is an issue if you plan to inject at part throttle settings. Full throttle, post and pre injections go away. Aquamist is trying to hit a specific fuel to water ratio (that's a little too simple for a diesel as AFR needs to be considered as well, That's why they added the auxiliary input to get MAF). To do that they are trying to measure fuel flow with duty cycle and pressure. I think if you just take an rpm signal (you can tap one off the OBD port), combined with MAP and rail pressure you can get very close.

[DWR]

Damn, I just did what I don't like doing. These water injection posts are way off subject. We should probably start a new thread if we are going to continue down this road.

Is there a good way to grab the last group of posts and move them?

[mob17]

Originally Posted by DWR

Damn, I just did what I don't like doing. These water injection posts are way off subject. We should probably start a new thread if we are going to continue down this road.

Is there a good way to grab the last group of posts and move them?

Lol no worries. To be honest i'm glad you guys are discussing the Aquamist HFS4-V3 as that's what i need more info on too. Seriously considering buying this one, which is why i made this thread

I will amend the thread title.

[Whitbread]

Now that we're not derailing anymore, I just got this from Aquamist this morning:

"I think the 335D has solenoid type injectors. The N54 335i has piezo-type injectors. The HFS4 can read both.
The 335D responses very well with wm injection. See attached.

If you order the system with a "335d" comment at checkout, I will put in the appropriate documents.

Richard
aquamist direct"

Maybe the 335D's in the UK had solenoid injectors? I'm 99.9% sure ours are piezo here in the US. Either way, good to know it works with any of them! I attached the dyno they sent me also.

[mob17]

I've emailed the person whose dyno that is to get some more info, but yet to hear anything. But the gain on that is very impressive, never thought meth would give such a big increase.

When speaking with Richard, i think what he said was that the IDC and MAF are mainly used for the injection calculation, and boost makes a small percentage of the calculation.

I'm just wondering what the aux input should be used for.

[DWR]

Originally Posted by Whitbread

Now that we're not derailing anymore, I just got this from Aquamist this morning:

"I think the 335D has solenoid type injectors. The N54 335i has piezo-type injectors. The HFS4 can read both.
The 335D responses very well with wm injection. See attached.

If you order the system with a "335d" comment at checkout, I will put in the appropriate documents.

Richard
aquamist direct"

Maybe the 335D's in the UK had solenoid injectors? I'm 99.9% sure ours are piezo here in the US. Either way, good to know it works with any of them! I attached the dyno they sent me also.

100% piezo injectors. Solenoids are not fast enough. I think they are missing the point about the multiple injections.

That dyno curve is interesting. Looks like the added methanol HP is dimishing with rpm after 3,000 rpm. That is representative of a boost only curve on a stock 335d. Not what I would have expected.

[TDIwyse]

Originally Posted by NC335d

I am running hybrid turbos and have a meth kit installed running a stock transmission. The meth kit is made by AEM with an upgraded controller that does not have a boost nozzle running to it but has a MAP sensor instead. I have 2 nozzles, a 1000 CC nozzle and a 500 CC nozzle. The car was out on the dyno today and produced 435 rwhp and 655 ft.lbs of rwtq.
...

When are you going to get that thing on the strip?!?! If this is a conservative dyno, then those rwhp #'s are about what you need to get into the 11's.