hrmm just went for a drive, still bubbles.. big as well

i just tightened up the tank adapter a bit more and a drop of liquid leaked out..

maybe thats the problem...

 

Leaky tank adaptor will not normally produce air bubbles, but will make your carpet wet. I will send you a few compression fittings so the posibilities of leaky push-in fitting is totally elminated. You can then concentrate on finding the real cause of the bubbles in Toobs.

There is another possibility, if the delievery is over a hot component, it may cause local boiling and produce air bubbles.

 

no hot components nearby.

before you send anything let me do some more checking

ps - can you tell me how to mod my HFS board to use MAP instead of IDC?

 

I though I ought to do something about this long going thread.

The HFS-6 can either be progressive with boost or progressive with IDC. Is this what you want, progressive with boost?

 

Remember I emailed you about it

Instead of using IDC as the triggering point I wanted to use MAP sensor as the trigger.

So once triggered the system will still use IDC to determine how much to spray...

 

I'm setup this exact way. Works well.

 

with an Aquamist?

 

I think we are narrowing the source.

One possibility and quite common:

There are two wedge-shaped collars at each end of filter. If they are not fully aligned before they are pressed into the filter posrt, it will distort after tightening the two cap nuts. This causes air bubbles in line.

Let me know.

Richard

 

Well the hose actually angles UPward towards the filter - bubbles can't go down can they?

Also the bubbles are in the prefilter section of tube.

So I would assume that its not the filter or filter collars.

 

OK, I think our new compression fitting may help. O-ring/quick fit fitting works great under pressure but in low pressure or vacuum, it not as effective especially with methanol. It will dissolve the plasticizer used in the o-ring, in time of the dimensional changes and sealing property is affected.

 

Just a question. The port you are using for the X is an analogue one, can you write a patch to alter the ignition and fuel trim if a progressive flow signal is sent to this port?

I will work on the boost trip, I forgotten all about this since we last spoke. dubbleugly01 uses a different aquamist system to yours, the system-trip can be IDC or boost.

Do you have a MAP sensor on your car?

 

On the compression fittings, do you have a 90degree elbow (1/8 BSPP -> 6mm compression)?

What about a T piece (2x 6mm compression, 1/8 BSPP)

Yes MAP sensor is default in EvoX, I already have it wired into the HFS for boost compensation.

With the patch - what modifications to the ignition and fuel trim would you like? I could add a 2d lookup table that takes input volts and applies a + or - adder to the Ignition Timing, and I guess another one for AFR...

You know my current patch just loads up different fuel, timing and boost tables at the moment right?

 

I do have a 1/8BSP-M to 1/8 BSP-F, 90-deg elbow in compression fitting style. All you need to do is putting a 6mm to 1/8BSP-M into this fitting.

I do not have a Tee (2x 6mm compression to 1/8 BSP-M) fitting. I only have 4mm compression Tee.

I have been thinking, when we can get the 4-port sequential WMI system going, the patch can be used to modified afr and timing automatically tio suit a methanol rich fuel. When you mention AFR , it is actually a lambda translated value? This may sound crazy, I try to make a totally user selectable dual fuel system, pump and methanol in any proportion. Since each inline valve can flow 1600cc/min. It wouldn't be out of the question to have a dial to select Pump100 to M100 fueling system.

I am slowing learning your thoughts behind the patch.

 

If you can source a T that would be brilliant! - Otherwise a 3x6mm compression Y piece (but parallel like the one in the HFS6 kit) so I can run 2 6mm lines into the filter

ok on the patch, we can basically do anything you want. However having variable flow/timing/boost adjustments is hard todo, its better to have set maps, ie when meth is ON or meth is OFF.

Can you give me more info on the 4port sequential WMI? Does it replace the regular fuel?

 

I looked into the possibility of alter the boost trigger and it is not easy. it need soem retracking work, not easily performed on a populated board. I have a few bear board here, I will modify one and set it to you and see if it works.

Richard