HIF Manifolds

Started by tmsmini, November 09, 2019, 09:08:11 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

94touring

Fitment results.  Fits and fits well.  No room for error though!  Stub stack inside the filter turned the idle mixture from 14:1 to wouldn't stay running lean fyi.

tmsmini

And that is with a 6 mm or 1/4 inch spacer? And no longer or adjustable dogbone?

94touring

6mm spacer gave just enough clearance for the linkages to not foul as well as the arm for the abutment plate.  I don't have an adjustable arm, just the fancy lightweight 1275 one that med or one of the blingy aftermarket people sells. 

94touring

One thing that would benefit this filter is a few extra gaskets or slim spacer so the tab for the filter doesn't clip the carb when you slide the piston off. 

John Gervais

At one time, I cut an abutment plate (removed the side tab and below the holes) and used it as a thin spacer between the carb and manifold.
- Pave the Bay -

CooperTune

I believe if you do some checking you will find the late cars moved the power unit 1/2 inch forward. Steve (CTR)

LarryLebel


CooperTune

On page one there is talk about replacing the water tubes in Metro HIF 44 intakes. The bore though the intake does not allow a drift to pass from one end to the other. The tubes are pressed in and are very tight. I saw off the ends flush with the intake, grind though the tube wall with a high speed burr. When the tube gets thin it will turn blue and can be peeled away with a sharpened punch. It takes time and and care. Once removed new tubes can be purchased at a good machine shop. They are used for intake by pass and heater outlets on common American engines. I mix up some 5 minute epoxy and press new ones in. I do run the water though even if it's not required. I also use a HIF 44 air horn and std plastic air cleaner with a K&N element. Top speed recorded by my GPS 96 MPH. Steve (CTR)

MiniDave

I ran a stock air cleaner on Buzz too, it is SO much quieter than with a pancake filter and the like....doesn't look as cool tho  ;D

Larry, what cable are you referring to?
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

tmsmini

I pulled my spare HIF out and looked at it, thinking I would use a smaller spacer, but on this MiniSpares manifold, the bracket and throttle quadrant will foul the manifold

MiniDave

You could carve a little radius where the bracket is close to the manifold to make room for a smaller spacer....I think I ran a 1/4" spacer on Buzz.
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

John Gervais

My current MiniSpares manifold required that I file a tiny (relief) amount off of the manifold itself where the throttle quadrant would have fouled.  This was with a 1/4" spacer.  I also filed a tiny amount off of the throttle quadrant itself. 

Of course, I could have simply used the thin spacer that I'd made from an old abutment plate as a supplement to the 1/4" spacer, or had a ½" spacer milled down...
- Pave the Bay -

John Gervais

Another thing that I can't remember offhand - would it be possible to rotate the throttle quadrant 90° counter clockwise?
- Pave the Bay -

Willie_B

Quote from: John Gervais on January 04, 2020, 03:50:36 PM
Another thing that I can't remember offhand - would it be possible to rotate the throttle quadrant 90° counter clockwise?

Not if you are using the stock air filter housing.

John Gervais

Thanks - I'm using the stock air filter housing and I couldn't remember if I'd tried that at one time or another.
- Pave the Bay -

tmsmini

So I finally got out a head and compared the older HIF manifold with some new MS versions.
It appears there is about 1/4 inch difference. Although I am not sure if my older manifold has been modified.

Not sure if you can tell how I was measuring. May not be scientific, but it convinced me that it might be worth trying at some point.

Not sure I trust myself to remove the heater pipes, so I will keep an eye out for one with a decent set of pipes.

MiniDave

So, is the older one or newer one shorter?
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

tmsmini

The older CAM 6618 manifold is the shorter one.

MiniDave

What is the device on the throttle shaft of the carb?
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

tmsmini

It is a TPS for the electronic ignition. On the woodie wagon we drove to MMW, we are using an MPi block so we are making use of a Specialist Components ECU to provide distributorless ignition.

MiniDave

#45
MMW in 2016? I was there.....Bruce and I took his MINI and Mini there. I didn't have my Racing Green yet, I bought it shortly after we got back IIRC.

Hard to have ignition without a distributor if you don't have an electronic system!   ;D

What do they charge for their electronic ignition setup? And once you have that, can you add their fuel injection or do you need a different ECU?
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

tmsmini

Sorry MMEW last year.

It is the same ECU, but we are using the older Typhoon and now they have the Delta 400 for Minis.
Both support injection.
They had a special at Christmas time on the ignition only system and I think it was close to $800 including a trigger wheel and their sensor setup.

MiniDave

Yikes, that's spendy...but what choice do you have? the map can be tailored?
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

tmsmini

Yes, fully adjustable
If you know what you are doing

94touring

Can't recall if I illustrated how closely my abutment plate and throttle linkage comes to the new MS manifold but this is it.   I think if I was barely fouling I'd file down the plate or even the manifold slightly.   I can fit an index finger between the carb float and bulkhead too fyi.