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Twin SU carbs on your 2.25?

Started by NoBeardNoTopKnot, Jun 05, 2024, 12:47 PM

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NoBeardNoTopKnot

#30
This goes the other way too. No takers on these twins, fair enough.

I got the alert too late. Someone got a 2.5 17H for £400 because the buyer clearly had no clue of its value - thus priced at £400.

More usually, to even find one says you're doing well. I've seen those go for over £2500+. A 2.25 5MB has to be going £1500-2000.

A 17H for £400... PAS pump too. Someone got lucky.


https://www.ebay.co.uk/itm/256538004903

Wittsend

I'm not surprised at all - no bids at £850 with a day to go.

I'm surprised that this topic has gone onto 3 pages  :thud

Out of 1000 forum users I doubt there's but 1 or 2 contemplating twin SU carbs ???

A few have (good) experience of the ACR and lately the HNJ Engineering offerings.
One big carb, easy to set up.

What these carb conversion won't do is get you anymore mpg.
The best you can expect is around 24 mpg and who needs to out accelerate the vicar on his bike  ???

We have Series Land Rovers 50+years old not racing cars.

As such we shouldn't be berated for not showing much/any interest in this eBay offering.
What's interesting is the astronomical price the seller is hoping for.



 :RHD

NoBeardNoTopKnot

#32
None of this is cheap. Astronomical? Are you sure?
The eBay offering is at £600. I can see that price. Agreed there's never going to be a massive queue, only for those that like  such things it's viable.  HNJ - after you've sourced a decent carb- want about that for a lash-up. ACR comes at around £1450.

This thread sits in 3 x pages. The topics which garner greater traffic follow standard rules; with a few exceptions they all have the same thing in common. Follow the rules, and be more surprised if a thread does less.






Beamont58

Quote from: NoBeardNoTopKnot on Jun 10, 2024, 11:17 AMThis goes the other way too. No takers on these twins, fair enough.

I got the alert too late. Someone got a 2.5 17H for £400 because the buyer clearly had no clue of its value - thus priced at £400.

More usually, to even find one says you're doing well. I've seen those go for over £2500+. A 2.25 5MB has to be going £1500-2000.

A 17H for £400... PAS pump too. Someone got lucky.


https://www.ebay.co.uk/itm/256538004903

I have a 2.5 petrol engine, with all the gear PAS pump. Running in an old chassis in my lockup. Occasionally I fire it up to keep it ticking over.

One day, I might rebuild it. I could of course drop it into the Series 1 that I haven't bought yet  ???

NoBeardNoTopKnot

#34
PAS version too? Reckon you're lucky to have it. Rare and both early d*b**der owners and Series owners want them. Banged on about this numerous times, rather spendy yet in my mind -  for the ultimate '4-potter',  the way to go if you can is overbore to 2.8L. Highly recommended.

With no departure from its essence of 2.25, the 17H maintains the feel and character of the 2.25 - yet with more grunt.

And why wouldn't it? - that's what it is.

ACR linky

Beamont58

Yes. It has PAS. All working too.  :cool

Infact, everything on the car works. It juts needs a new chassis and bulkhead. Minor issue...

Agree with your comments about the 17H.

Boomer

My HNJ SU kit works well.
I like the sheer simplicity of these carbs.

NoBeardNoTopKnot

#37
Quote from: Boomer on Jun 27, 2024, 01:03 AMMy HNJ SU kit works well.

Don't doubt it.

LR never did get it right with carbs. Hardly a week goes before we see light of yet another carb rebuild. Selection is based on being 'original' - and its place as 'which is best of a bad bunch' etc. But whichever it is -  someone will be along to say they've had their ZenStromSolWeb for "40 years and it's fine thank-you very much". Fact is, like them all, it'll be sub-par.

The SU is pretty much vice-free and holds closer to stoich than stock fitments. British Leyland fitted the SU to everything else. I suspect BL would have fitted the SU to LRs had it not been for the fear of one real weakness. They're ***** on an incline.

Only most of us cope, if we truly do spend our time driving cliff-faces we probably require professional help. For, in practice, where the SU comes up short you'd be falling out of the thing anyway. If we lack the sense to find another approach we've bigger problems...

Meantime we're left with a hotch-potch of carb fitments because LR had rightful fear. Imagine the scene - the marketing-team provisions a smart hotel,  a slap-up lunch. The problem is: our press-fleet's in the the hands of the only people to make cliff-faces routine - journos. We, as the marketing-team have real fear;  being found trousers-down.

We send down another brandy after dinner.

I put this to you; this is the true root to iffy carbs, and the harrumph "40 years and it's fine thank-you very much" ; this coupled to 20-30 more carb-threads before the years out.


Boomer

#38
Quote from: NoBeardNoTopKnot on Jun 27, 2024, 08:51 AM
Quote from: Boomer on Jun 27, 2024, 01:03 AMMy HNJ SU kit works well.

Don't doubt it.

British Leyland fitted the SU to everything else. They're ***** on an incline.


That may be true with SU carbs that had separate float bowls.
The last SU designs have integrated bowls and concenctric floats that surround the jet.
Theoretically, they should be far less sensitive to slopes and centrifugal forces when turning left and right / braking and accelerating.