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Old 26-02-2012, 01:40 PM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
Posts: 4,941
Default Re: HFS-4 Q&A, application for your engine...

You have today to register your interest the GB but you are not fully commited until you have paid the deposit.

Answers to your questins:
1. OE S/C or specials?
2. For total fuel flow of 3300cc/min at M70/W30 mix, I recommend 20% to fuel ratio: 660cc/min @19psi (or 0.9mm + 0.8mm jets), allowing a small head room. System comes with 0.8. 0.9 and 1mm jets as standard.
3. A 5-quart is normally good for a full tank of fuel. For drag days, perhaps 7-8 runs.
4. I cannot read German, but a ECU pinout diagram will help. The HFS-4 has a set of relay contacts for the failosafe usage. Not sure how we can stop the S/C from spinning unless you have a blow-off valve we can activate. There is also 0 or 5V output for failsafe interface purpose with your ECU. Again not sure until I know what is available.
5. The HFS-4 has an 0-5V anlogue output for water flow, you can use this for you data logging purpose.
6. Tanks are sold separtely, Howeton will help you on this. We do supply every parts to be fitted to the tank.
7. Any possibilty of fitting jet before the S/C? it will help reducing the heat soaking from the S/C casing.
8. Jeff howerton will help you on this.
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Richard L
aquamist technical support
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