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Twin Su Carbs


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#1 Shooter63

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Posted 18 April 2017 - 03:18 PM

Is there a reason that people don't use twin hif carbs on a mini, I've noticed that the old style hs twins go for silly money but twin hif4 type carbs make no money at all, where as single hif carbs go for mad money, surely the hif type carb must be better, so if a single is good why not the Twins?
Twin hif 4/38's were fitted to later mgs etc before some one says they didn't make them.

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#2 GraemeC

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Posted 18 April 2017 - 04:29 PM

Some people do  ;-) :

IMG_3200.jpg



#3 nicklouse

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Posted 18 April 2017 - 08:02 PM

Having more of a good thing is not always a good thing.

A HIF44 is good enough for most road base builds you will see.

Twins have a place and being realistic it is only the old Skool ones that have the value for the retro build look. For most other builds the HIFis a better option.

#4 Moke Spider

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Posted 18 April 2017 - 10:19 PM

Twins do look great and I suspect in most instances, that's why they bring money, and a single HIF does look pretty lame by comparison.

 

I recently posted up a HP vs Carb sizing guide if you do a search.



#5 Shooter63

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Posted 18 April 2017 - 10:29 PM

The actual point of my question was, why don't twin hif type carbs command more money, when I presume they are a better carb, I know the plus and minus sides of both set ups.

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#6 nicklouse

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Posted 18 April 2017 - 10:33 PM

The actual point of my question was, why don't twin hif type carbs command more money, when I presume they are a better carb, I know the plus and minus sides of both set ups.
Shooter

They are not needed so no one buys them.

#7 AlexMozza

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Posted 19 April 2017 - 12:00 PM

Nothing beats the look of twin hs4's :)

#8 Shooter63

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Posted 19 April 2017 - 12:17 PM

The actual point of my question was, why don't twin hif type carbs command more money, when I presume they are a better carb, I know the plus and minus sides of both set ups.
Shooter

They are not needed so no one buys them.

But need and want are two seperate things, do I need 300bhp in my kit car, the answer is no, but will I have 300bhp in a car that weighs 650kg, what do you think :)

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#9 InnoCooperExport

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Posted 19 April 2017 - 03:56 PM

Guess you're not using an A-series engine if you're shooting for 300bhp? Unless you want to rebuilt it very often. I think even with forced induction on a 1380 (or stroked to even bigger capacity) won't yield those kind of figures. Happy to be corrected here but to me it seems unrealistic on an a-series. 



#10 minifreek1

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Posted 19 April 2017 - 04:42 PM

I think he may have exaggerated slightly when he says 300 BHP....



#11 Shooter63

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Posted 19 April 2017 - 05:30 PM

I think he may have exaggerated slightly when he says 300 BHP....


2.0 zetec engine in the kit, 300bhp is sooooo easy,now 450-550 bhp, then things get interesting, but back to the mini,I've got both set ups for the engine, single 44hif and twin hif4'su. After seeing Graemec's setup I think I'll go with that.

Shooter

#12 minifreek1

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Posted 19 April 2017 - 05:57 PM

Think the fella above was referring to you getting 300BHP from an A series.... thats what I got anyway..

 

ZETEC's are a good strong engine, used to have the ZETEC S engine in a Fiesta my wife used to have, that went well indeed...



#13 GraemeC

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Posted 19 April 2017 - 06:58 PM

The linkages are a squeeze to get in and, depending on where your HIFs are from you may need to fashion up a throttle cable bracket (the one in that pic wasn't stiff enough, I now have one from an Allegro 1750SS)

#14 InnoCOOPER

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Posted 24 December 2017 - 09:31 AM

The linkages are a squeeze to get in and, depending on where your HIFs are from you may need to fashion up a throttle cable bracket (the one in that pic wasn't stiff enough, I now have one from an Allegro 1750SS)

Thinking of doing the same.. any close up pics of the setup would be useful,  May mate use to run twin HIF4s years ago on a hillclimb mini... very effective.  



#15 GraemeC

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Posted 24 December 2017 - 09:13 PM

What do you want close ups of?




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