Re: HFS-4 Q&A, application for your engine...
 

We have a new range of jets with 15psi internal checkvalve. The body will be slightly longer (~3mm+). It is designed for port injection. It is will be available in 6 weeks.

If you are not in a hurry, consider them instead of individual "jet" followed by "check valve" arrangement.

Since you do not have individual throttle plates, the after spray may cause pre-ignition problems if you run high concentration of methanol (~50%)

There will not be a GB for them.

Re: HFS-4 Q&A, application for your engine...
 

Good deal, I'll wait.


Thanks for all the advic

Re: HFS-4 Q&A, application for your engine...
 

Would I be able to run this on my rotary setup?
Haltech e11v2 ecu
2 x 450cc injectors primary
2x 1680 injectors secondary
EFI hardware lower inlet manifold (2x 55mm throttle bodies feeding 4 ports)
Borgwarner S366
PWR largest charge cooler available
Just order some AEM ignition smart coils. 40,000 volt output, 108mJ at 3.0 seconds dwell, up 250mJ at 6.0 ms. Max dwell 9.0ms but recommended dwell setting is 4.5 ms but can be mapped for higher dwell for higher boost.
GM air temp sensor, fast reacting.
3 bar map sensor.

If you need any other info tell me what you need and I will know it.

Could this kit be used pre turbo? My turbo inlet is 4". Or is the spray not fine enough? Post turbo would be fine. Initially wanting to use just water to help clean the carbon build up and lower the EGTs that rotaries produce. Then eventually use wm50/50 and map it up for power as well as engine safeguard from det

Re: HFS-4 Q&A, application for your engine...
 

Yes, I can not see why it can't be used on a rotary.

Does your Haltech has a spare PWM channel to drive an inline valve so that you can create your own water injection map?

Is pre-turbo is part of the set up or you want to inject the total amount pre-turbo?

If you are concerning about droplet sizes, Tee-off some water through a restrictor/checkalve arrangement from the main post-valve line and feed it into an air-assisted atomising nozzle.

The restrictor can be replaced by a pneumatic speed control valve:

http://www.aquamist.co.uk/forum/restrictor.jpg

Re: HFS-4 Q&A, application for your engine...
 

Richard, have you ever tried this? i was considering it for pre-turbo, but hadn't heard anything from the water air nozzle guys like riceracing or the seller on rx7club.

Re: HFS-4 Q&A, application for your engine...
 

Has anyone installed the HSF-4 on a new golf R?

Re: HFS-4 Q&A, application for your engine...
 

I have not heard this myself but it does mean it hasn't been done. I only get some indication when people require help or a new enquiry like yours.

Can you please tell me something about this new Golf meanwhile? I will do some search this weekend and will reply.

Re: HFS-4 Q&A, application for your engine...
 

I have played with an air atomisation nozzle many years ago but did not go any further than just curiosity.

Pete at Rice racing knows a great deal more about it than me.

Re: HFS-4 Q&A, application for your engine...
 

Yea i believe it has multiple PWM controls. Ideally I want to have the system for post IC just for safety measure then change to pre turbo and post IC and map for it

Re: HFS-4 Q&A, application for your engine...
 

If you have multiple PWM channels, just need two inline valves, one for post IC inline valve, one for turning the pump on (via a relay- on/off) and the other for the pre-turbo inline valve.



If this is the case, you don't need a checkvalve and variable restrictor.

Your shopping list:
x1 aquatec pump with by-pass
x2 Fast acting valves
x1 standard jet for post IC
x1 air atomising jet

+some fittings, pump relay and nylon lines.