waterinjection.info  

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

Reply
 
Thread Tools Display Modes
  #21  
Old 08-03-2017, 02:42 PM
Mattias Mattias is offline
Junior Member
 
Join Date: Jun 2016
Location: Sverige
Posts: 17
Default Re: Port injection with FAV vs Pump speed

That is where I fitted mine and used it in the same way, at first it reversed the flow to the header tank so all air was pushed out in the system, fixed that with a one way-valve but I'm afraid it might also have changed flow in the head and block. What I learnt is when designing cooling circuits it's all about remembering pressure differences to keep track of the flow path.

I wish I had a lot more inputs on my ecu so I could measure all temps in the CC system to get an idea how effective it is and what air temp the engine rad is seeing.

What is a ZC controller? I came up with the idea of using a fan module from a volvo that is PWM controlled, worked perfect for both pump and fan, really nice to hear the pump and fan working in the pit after shutdown:

Volvo fan module (P/N Bosch 1137328081) 

I used 100Hz input pwm and it works from 10-95% duty.

Input 95% > Output 99,4% @ 3300Hz
Input 50% > Output 67% @ 22800Hz
Input 10% > Output 34% @ 22800Hz

If 95% is applied from standstill it slowly increases the output pwm and holds the Amps pretty constant . 
If nothing is connected to the module output it doesn't activate.
Reply With Quote
  #22  
Old 08-03-2017, 10:28 PM
rotrex rotrex is offline
Senior Member
 
Join Date: Jan 2014
Location: Germany
Posts: 154
Default Re: Port injection with FAV vs Pump speed

The DC electronic pump controller, Davies Craig


No flow reversion issues for a Rover engined Elise. You only need to extend the top coolant reservoir vent line on the inside of the reservoir to below the coolant level. Other wise it pulls in a little air once in a while.

Last edited by rotrex; 08-03-2017 at 10:31 PM.
Reply With Quote
  #23  
Old 31-03-2017, 08:34 PM
Mattias Mattias is offline
Junior Member
 
Join Date: Jun 2016
Location: Sverige
Posts: 17
Default Re: Port injection with FAV vs Pump speed

I just tested the FAV and it only works up to 55% DC @ 30Hz and 69% @ 20Hz after that it won't switch fully.

My plan was to only use 60-90% DC @ 30Hz from 4000-7500rpm to cover the engine cycles but now that seems impossible.

Is it impossible to get hold off the old faster FAV now days? I'm assuming it was custom made for aquamist?
Reply With Quote
  #24  
Old 20-04-2017, 08:39 PM
Richard L Richard L is offline
Manufacturer sponsor
 
Join Date: Oct 2003
Location: England
Posts: 4,472
Default Re: Port injection with FAV vs Pump speed

There is something wrong with your drive circuit if you couldn't go past 55%dc with the aquamist FAV.

You should be able to repeat the chart I posted earlier.
__________________
Richard L
aquamist technical support
Reply With Quote
Reply

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 Off

Forum Jump


All times are GMT +1. The time now is 06:45 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.