Water Meth Controller RPM and MAP Signal Wires???

[Alexc]

Who has tied into an RPM signal wire? Any chance you used this location:Speed Sender.jpg

As I understand it I can use the combination MAP sensor and temperature sensor on either side of the supercharger, it is just a matter of connecting to the right wire.

Thanks for the help!

[Fresh.S4]

why not just run a hobbs switch ?
such an easier process.

[Alexc]

The water meth controller I'm using takes both of those inputs and allows me to manipulate a 3D progressive injection table. I will be running the SRM direct port plates with an additional nozzle at the throttle body.

[Izzyz28]

Can't help you there, but a Hobbs switch, or a simple boost reference coming on all at once or ramping up with boost is more than sufficient. Hell, a Hobbs switch with a single nozzle in the intake tube or at the TB is more than sufficient.

[Fresh.S4]

Can't help you there, but a Hobbs switch, or a simple boost reference coming on all at once or ramping up with boost is more than sufficient. Hell, a Hobbs switch with a single nozzle in the intake tube or at the TB is more than sufficient.

yup. that 3d progressive shit isnt for us lol.

easiest method is just a single hobbs switch running to a nozzle after TB. This is your octane spike

if you need more, add a T and run another nozzle (much smaller) in the intake filter. This is your cooling.
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if you plan to run those SRM plates, i commend you! to my knowledge i dont think anyone has actually found success going that route.
remember spraying isnt new technology. dont over complicate it.

[Izzyz28]

yup. that 3d progressive shit isnt for us lol.

easiest method is just a single hobbs switch running to a nozzle after TB. This is your octane spike

if you need more, add a T and run another nozzle (much smaller) in the intake filter. This is your cooling.
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if you plan to run those SRM plates, i commend you! to my knowledge i dont think anyone has actually found success going that route.
remember spraying isnt new technology. dont over complicate it.

People like to add points of failure and overcomplicate everything. I'd rather trust the blower to mix and distribute the fog from one nozzle, but some folks prefer a rat's nest of lines and nozzles. One nozzle/orifice clogs or sticks, you won't know until it's too late.

[fastboatster]

hmm, these srm plates look very interesting. I wonder if it's possible to pop some real injectors instead of methanol nozzles and have a port injection kit

[Fresh.S4]

hmm, these srm plates look very interesting. I wonder if it's possible to pop some real injectors instead of methanol nozzles and have a port injection kit

WOULD YOU LIKE TO KNOW MORE?

[BrokeBichB8]

The water meth controller I'm using takes both of those inputs and allows me to manipulate a 3D progressive injection table. I will be running the SRM direct port plates with an additional nozzle at the throttle body.

Can the controller accept PWM? or it has to be a 5V signal?

[fastboatster]

WOULD YOU LIKE TO KNOW MORE?

lol, yes

[Alexc]

It needs to be 5V. I could pull it from CANBUS but I like the idea of going direct.

[Fresh.S4]

lol, yes

https://precisionraceworks.com/produ...8-b8-5-mpi-kit

these are available NOW and have a controller that you can use with it.


join the fight! buy the MPI kit and help the platform progress. Work with the other guy and his kit and maybe things will progress faster....get it lol.
theirs been so much talk about how much fueling problems these cars have but no one wants to put the work in to help solve the problem (we just like to hype the dream stuff).

[Ashtonts]

these are available NOW

Lol they are backordered

[Fresh.S4]

thats actually a REALLY good thing....

when i chatted with the owner last year he said he was sitting on inventory. so now if hes sold out, then we've got folks who are doing stuff behind the scenes (i really hope!).
id contact them to find out for sure.

[Alexc]

The controller they recommend for the MPI kit still needs a RPM and Map signal. Anyone have any info on my original question?

[fastboatster]

Sorry, I’ll continue to stir this off the original topic. That PI kit is back ordered and just too expensive for an unproven part compared to some other platform I have which uses port injection spacer/manifold which looks similar to this meth injection kit. This 3.0t port injection kit basically replaces the entire intake manifold with billet aluminum part which can’t be cheap plus tacks on port injection controller and injectors with it which can be obtained used (controller) or separately depending on your needs (injectors). Could they not just make similar spacer plate which would go under the original intake manifold and add some spacers/extensions for the DI injectors or they just want to add “value” by manufacturing a more complex and expensive part they can sell for more?

[Fresh.S4]

Sorry, I’ll continue to stir this off the original topic. That PI kit is back ordered and just too expensive for an unproven part compared to some other platform I have which uses port injection spacer/manifold which looks similar to this meth injection kit. This 3.0t port injection kit basically replaces the entire intake manifold with billet aluminum part which can’t be cheap plus tacks on port injection controller and injectors with it which can be obtained used (controller) or separately depending on your needs (injectors). Could they not just make similar spacer plate which would go under the original intake manifold and add some spacers/extensions for the DI injectors or they just want to add “value” by manufacturing a more complex and expensive part they can sell for more?

expensive? maybe but its the kit needed to solve fuel problems.
unproven? maybe. everyone is too scared to try.

no they cannot make a spacer that incorporates injectors that fits with the oem plastic manifolds. THAT option is reserved for the meth guys + SRM plates https://sillyrabbitmotorsport.com/3....ategory_id=120

[fastboatster]

expensive? maybe but its the kit needed to solve fuel problems.
unproven? maybe. everyone is too scared to try.

no they cannot make a spacer that incorporates injectors that fits with the oem plastic manifolds. THAT option is reserved for the meth guys + SRM plates https://sillyrabbitmotorsport.com/3....ategory_id=120

well, that's not how it works - if somebody is asking money for their product, most people would expect that they would show that it does what it advertised. not just fork out some money and then the product ultimately might not do much. Yes, port injection would be nice because it would allow to run full e85 and not mess with mixing, but there's a sneaky suspicion PI kits (and blowers) didn't pick up any steam due to some ecu limitation(s). Particularly, as I was told and understood, ECU's reference map (ip_tqi_ref) it uses to go back and forth between the load and torque, has a torque limit very close to an e40 dual pulley setup. Or we should say, e40 DP setup is on the limits of this reference map. here's this map from some b8.5 rom (columns are load in mg per stroke and rows are engine speed in rpm, values are torque in Nm):
0 60.02 120.03 180.05 230.06 270.07 350.1 430.11 550.14 700.17 850.2 1250.31
512 0 23.219 50.469 77.75 103 125 165.531 210 294 378 460 693.281
800 0 21.594 60 86 106 130 178 219 297 382 463 697
1024 0 20.5 64 90 114 137 185 226 300 384 468 698
1248 0 20.906 66 96 122 141 190 235 305 386 470 698.469
1504 0 21.125 69 100 126 146 198 252 319 387 472 698.469
1760 0 24.969 70 102 130 154 204 260 326 395 475 698
2016 0 28.563 71 105 134 162 212 266 332 403 473 699
2496 0 29.031 72.125 107 138 164 216 272 338 413 484 703.688
3008 0 32.406 74 109 140 165 212 266 339 420 491 710.625
3520 0 34.781 71 111 141 165 213 264 338 419 488 710.656
4000 0 37.281 74.5 112 141 166 218 268 337 420 487 711.656
4512 0 36.281 75.5 112 142 167 217 264 339 424 490 714.375
5024 0 38.188 76.344 114 144 168 218 268 347 428 506 714.094
5504 0 39.969 78.969 114 143 169 217 267 342 426 503 710.625
6400 0 38.531 77.031 113 143 170.5 219 269 341 420 496 700.219
7200 0 38.969 77.531 112.344 142.719 169.125 219.781 270.125 341.969 418 495 693.906

and it's all downhill from here, these are some reference values in some ideal conditions, and this all gets mostly adjusted down. If PI kits could make a lot of a difference power wise (not just be convenient for e85), I'm sure some major vendors on this platform would have released these already. By the same token, this might explain why APR didn't get much power from their supercharger compared to a DP setup. Of course, I might be wrong about this, this is what I have been told. It does seem more plausible to me than all the hopium-filled stuff about the new PI and blower setups, I've been hearing that this platform is about to have a breakthrough for almost all the years I had this effing car.

[RoofRails]

This has nothing to do with the original post but in terms of best setup. The more information you're basing your wmi delivery on, the better tuned it can be. What I ran into when doing a Map + progressive controller on a automatic transmission 3.0TFSI is that the boost never drops between shifts so once you reached full boost 100% spray its delivering the same amount of fuel at 5K rpms that it does at 7200rpms but the controller keeps on spraying. Loading up 034s wmi file cleaned that up. I'm guessing they pull a little fuel in that lower RPM range to counter that, where an RPM + MAP based wmi system could be tuned to avoid that. 6MT guys will not run into this.

1. Map + IDC + RPM (3D Map controlled)
2. Map , RPM. (2D Map controlled)
3. Map (progressive controller)
4. Hobbs (On off controller)

Sent from my SM-S908U1 using Audizine Forum mobile app

[Alexc]

Interesting, hopefully when I get to the tuning stage I can test the differences between those files. Where did you get your Map signal from?

[RoofRails]

Interesting, hopefully when I get to the tuning stage I can test the differences between those files. Where did you get your Map signal from?

I have the # 3 combo from the list... My Map was a standalone 4 bar, and I took a boost tap reference to it, and then the signal wires to the controller.

Sent from my SM-S908U1 using Audizine Forum mobile app

[Fresh.S4]

do NOT over complicate world war 2 technology.....

no one sprays on a "3d map" for our cars. Issues could arise if one of those sensors fails to report something. what happens if an injector hiccups? rpms drop? thats 3 failure points.

even a progressive spray is absolutely over kill. but if you must this should be as far as you need to go.

[BrokeBichB8]

Progressive spray mimics high DA conditions and allows the ECU to properly control fueling. Otherwise full on/off spray has moments of straight dumped fuel and super rich AFRs momentarily.

[Patrick Matte]

Who has tied into an RPM signal wire? Any chance you used this location:Speed Sender.jpg

As I understand it I can use the combination MAP sensor and temperature sensor on either side of the supercharger, it is just a matter of connecting to the right wire.

Thanks for the help!

Did you find the good wire? How it goes :)

What type of controller are you using?

Thx.


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