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PostPosted: Thu Apr 16, 2020 3:20 pm 
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848cc
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Joined: Sun Sep 22, 2013 8:36 pm
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Location: Murwillumbah NSW
Hi.

Just wondering if anyone is running a Mikuni HSR on their car? Are they a worthwhile upgrade and what performance benefit have you got?

Thanks.


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PostPosted: Thu Apr 16, 2020 3:22 pm 
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848cc
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Location: Coffs Harbour
I am but it is on a supercharged setup. I am happy with mine but took custom needle profiling and a larger acc pump

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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Thu Apr 16, 2020 3:28 pm 
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848cc
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It is a HSR 45 - Here is an old pic of it. I have since tidied up the engine bay so ignore the mess!


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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Thu Apr 16, 2020 3:33 pm 
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848cc
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Joined: Sun Sep 22, 2013 8:36 pm
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Location: Murwillumbah NSW
Thanks, MINI66. Very cool. I read your post, regarding swapping from the HS6 to the Mikuni, if you had a NA mini would you put a Mikuni on it?


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PostPosted: Thu Apr 16, 2020 3:43 pm 
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848cc
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I do have a na mini as well but am running a 45 weber because they are the coolest. But seriously, I would run one on an na if originality isn't an issue for you. Wide open throttle body without the piston and bridge restriction of an su. It is not a bolt on and drive away prospect though. It is not a cv carb so most of the tuning is to cure transition to load lean stumble. I paid $850 for mine with the custom oversize acc pump so they are not cheap
ImageImage

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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Thu Apr 16, 2020 6:33 pm 
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848cc
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Joined: Fri Jul 21, 2017 1:14 pm
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Location: Branxton, NSW
Geez that silver looks great!

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https://www.ausmini.com/forums/viewtopic.php?f=3&t=95872


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PostPosted: Thu Apr 16, 2020 7:38 pm 
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848cc
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Thanks
2000 Toyota liquid silver 1D0

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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Fri Apr 17, 2020 10:07 am 
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848cc
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Location: Murwillumbah NSW
MINI66 wrote:
I do have a na mini as well but am running a 45 weber because they are the coolest. But seriously, I would run one on an na if originality isn't an issue for you. Wide open throttle body without the piston and bridge restriction of an su. It is not a bolt on and drive away prospect though. It is not a cv carb so most of the tuning is to cure transition to load lean stumble. I paid $850 for mine with the custom oversize acc pump so they are not cheap
ImageImage

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Your'e right the Weber does look cool. Two awesome cars there. Which one do you enjoy driving the most? And why?
Attached a pic of Floyd's first day at work, pre working from home times.

Image

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PostPosted: Fri Apr 17, 2020 10:37 am 
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848cc
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Thanks mate

I only finished the build of the white one a week ago, so I am still tuning the weber. It goes pretty hard off the line at the moment but seems to be running out of puff up top. AFR is good up top but not revving out past 5.5rpm too well. More jetting to do.
So I only have about 15km driving on that engine/car but the bark from the weber is louder that I thought it would be (sounds awesome. I don't get that bark from the Mikuni). This car is for my wife so it was supposed to be pretty tame and has bulk sound proofing and only 1 & 7/8 maniflow twin box exhaust. Is really smooth and quiet for a mini.

The silver one will always be my preferred driver. It has minimal sound proofing, it is sitting on old cones so the ride is rough, has 2 inch single box exhaust so is loud as hell and at 12-13 psi around town the torque steer is there.
My point is, neither of these cars are my daily, I like the raw / loud experience of the mini and I like horsepower so the silver one is my fav.
My daily is a HSV Maloo 6 speed manual. It is cammed an goes pretty hard but not the same experience.

Is floyd an 850? Looks like it by the grill. My first car was a 1961 850.

cheers
Rick

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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Fri Apr 17, 2020 6:18 pm 
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848cc
848cc

Joined: Sun Sep 22, 2013 8:36 pm
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Location: Murwillumbah NSW
MINI66 wrote:
Thanks mate

I only finished the build of the white one a week ago, so I am still tuning the weber. It goes pretty hard off the line at the moment but seems to be running out of puff up top. AFR is good up top but not revving out past 5.5rpm too well. More jetting to do.
So I only have about 15km driving on that engine/car but the bark from the weber is louder that I thought it would be (sounds awesome. I don't get that bark from the Mikuni). This car is for my wife so it was supposed to be pretty tame and has bulk sound proofing and only 1 & 7/8 maniflow twin box exhaust. Is really smooth and quiet for a mini.

The silver one will always be my preferred driver. It has minimal sound proofing, it is sitting on old cones so the ride is rough, has 2 inch single box exhaust so is loud as hell and at 12-13 psi around town the torque steer is there.
My point is, neither of these cars are my daily, I like the raw / loud experience of the mini and I like horsepower so the silver one is my fav.
My daily is a HSV Maloo 6 speed manual. It is cammed an goes pretty hard but not the same experience.

Is floyd an 850? Looks like it by the grill. My first car was a 1961 850.

cheers
Rick
Nice job.
They both look great. You are correct Floyd is a '63 850. He's got a 1098. I've just got 500ks on him so far.
Had a noisy generator bush that scared the daylights out of me. Fixed with help from the guys on the forum.
I'm now thinking that my hs4 will be adequate. The Mikuni would be over kill. And I am trying to keep him semi original. Thanks for the reply.

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PostPosted: Fri Apr 17, 2020 6:49 pm 
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848cc
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Joined: Wed Oct 22, 2008 5:06 pm
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Location: Coffs Harbour
No worries. Yeah the su is your best bet I reckon. Very forgiving carb. Piece of cake to tune on na engine. I am running the carbs I have as I like the challenge.



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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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PostPosted: Fri Apr 17, 2020 7:14 pm 
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Location: Under the bonnet son!
We need a Like button

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All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


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PostPosted: Fri Apr 17, 2020 10:46 pm 
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Location: near Baulkham Hills, NSW
Gafmo is still running a
44 HSR on my 1412 stroker, in his Mini van.
I had to drill the main jet out to 2.4mm.

Not seen him here for a while though. ;)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Fri Apr 17, 2020 10:53 pm 
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848cc
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Joined: Wed Oct 22, 2008 5:06 pm
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Yeah must be a Siamese port thing as mine is drilled to 3mm. That was for a target afr of 11 though

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1310 SC 1969 Morris Deluxe - 15psi boost
1293 1968 Morris Deluxe Miglia - 45 Weber
HSV Maloo Z Series - Comp Cam - 300rwkw
Ford DF LTD - 5Ltr


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