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  #1  
Old 08-02-2012, 12:16 PM
Richard L Richard L is offline
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Default HFS-4 Q&A, application for your engine...



HFS-4 Q&A here


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  #2  
Old 08-02-2012, 12:16 PM
Richard L Richard L is offline
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Default Re: HFS-4 intro...

"What is in the box"

? 6M of 6mm OD nylon hose (806-261). 2M of 4mm OD nylon hose (806-266)
? HFS-4 Electronic controller
? 0.8 mm water jet (806-323) in plastic bag
? 0.9 mm water jet (806-324) in plastic bag
? 1.0 mm water jet (806-325) in plastic bag
? 1x 4mm Tee compression fitting (806-395) in plastic bag (new for 2.12 kit)
? 2x M8 x 1/8 NPT jet adapter with plug (806-357N)
? A set of three restrictors with insertion tool
? 1x water tank adapter 1/8 BSP (806-270), 6mm compression fitting and in-tank filter (806-258)
? 4x M5x40mm bolt, washers and fasteners for pump
? 1x M6 grounding stud with washer and nuts and 6mm eyelet for pump ground.
? 2x 6mm to 1/8 BSP compression fitting for pump..
? 2x 3/8BSP-M to 1/8BSP-F reducer for pump.
? 1x 4mm to 1/8 BSP compression fitting for FAV.
? 1x 6mm to 1/8 BSP compression fitting for FAV.
? Water pump harness. 6M of #12 AWG cable and 6M of multi-core cable with blue harness.
? 1x Fast acting valve with red harness
? 1x turbine flow sensor with yellow harness
? 1x water level switch with connector (806-281c)
? 1x DDS3v12 Gauge with 1.5M x 8-way cable
? 2.0 M of multi-core with grey capped RJ48 for ECU interface, fail-safe and map switching.
? Molex type 4-way power in harness
? Green harness for Direct injection engines (v2.12).
? User manual




Generic wiring diagram:





components in the kit:

Gauge:


Compression fittings (zero leak)


More to come...





More to come...
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  #3  
Old 09-02-2012, 08:17 AM
Dust Dust is offline
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Default Re: HFS-4 intro...

subscribing for group buy.
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  #4  
Old 10-02-2012, 10:31 AM
Richard L Richard L is offline
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Default Re: HFS-4 intro...

GB details will be up this weekend.
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Old 10-02-2012, 10:48 AM
Cletusb Cletusb is offline
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Default Re: HFS-4 intro...

Quote:
Originally Posted by Richard L View Post
GB details will be up this weekend.
Looking forward to it
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  #6  
Old 10-02-2012, 03:30 PM
Richard L Richard L is offline
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Default Re: HFS-4 intro...

We will probably need 20+ people for the GB to materialise. Hopefully it will happen.
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Old 11-02-2012, 01:38 AM
JumpingJackson JumpingJackson is offline
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Default Re: HFS-4 intro...

Compatible with DI on Mazdaspeed 6 / 3?
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  #8  
Old 11-02-2012, 05:54 AM
rxheaven rxheaven is offline
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Default Re: HFS-4 intro...

is this basically for newer cars and would this have no major improvements over the hfs3 on an 92 rx7
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  #9  
Old 11-02-2012, 09:19 AM
Richard L Richard L is offline
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Default Re: HFS-4 intro...

Quote:
Originally Posted by JumpingJackson View Post
Compatible with DI on Mazdaspeed 6 / 3?

Yes, it will be. The H4 has two dedicated Di inputs, one will work with the MZS3 and MZS6. The other is for VW FSi engines.
I know the MAZADASPEED ECU quite well. It is weird how it switches, firing alternative injector banks between + and -. On the MZS6, you can tap the injector signal before the driver, the injector signal is individually driven.
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Old 11-02-2012, 09:25 AM
Richard L Richard L is offline
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Default Re: HFS-4 intro...

Quote:
Originally Posted by rxheaven View Post
is this basically for newer cars and would this have no major improvements over the hfs3 on an 92 rx7
There several improvements on the H4 over the H3. One in particular is the ability to balance the meth flow rate between boost and IDC. This allows you to add more meth in the mid-range.

Think of the H4 as the H6 (discontinued) replacement rather a newer H3.
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