waterinjection.info  

Go Back   waterinjection.info > Injection Applications (making it work) > Gasoline Forced-Induction

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 02-12-2017, 06:34 AM
mm3boost mm3boost is offline
Junior Member
 
Join Date: Nov 2017
Location: Charlotte
Posts: 5
Default E46 M3 WMI Design

Hey Guys,

I'm about to order an HSF4 WMI setup for my maximum PSI E46 M3. My current specs are:

Precision 6870 turbo / .82 AR
3.5" straight exhaust, no restrictions
3" Intake
ID1050cc injectors
Currently 9 psi low boost pump gas 500 rwhp / 385 tq
High boost is set to 19 psi on MS109 ~730 rwhp

Goals:
With WMI, I would like to be able to run 13-15 psi (550-600 rwhp) on pump gas and 21-24psi (750-800 rwhp) on MS109.
At the moment the plan is not to tune for the WMI, just to add boost and use it as a knock deterrent.



The challenge of this setup is the intake manifold design has a large surge tank and the MAF sensor sits right before the manifold as well. The only position I see that is of value would be direct injection into each throttle body, I've attached a picture of my planned placement.


My main question is that the several of the technical papers I've read on this forum support data that shows the best water/fuel mass ratios to use are between 100-150%, but the Aquamist website claims 10-25% depending on your WM ratio. I'm unsure what injectors to purchase at the moment until I get a better clarification on what the proper ratio to run.



Regards,


~Anthony


Attached Images
File Type: jpg Slide1.jpg (157 Bytes, 32 views)
Reply With Quote
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT +1. The time now is 09:40 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.