Series 3 ACU - SU Carb Powerplus kit - Here at last!

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Simon Perks

Simon Perks

Active Member
Posts
318
Location
Switzerland East
Well almost ... the exhaust pipe is currently being help at Swiss customs but the manifold and the carb and the rest bits n bobs are here.
So my weekend project is to get this done.
I will take a bunch of photos of the progress and probly make a short video for you guys should anyone else be considering this move.

I'll also let you know what difference it makes to the current Zenith that it has.

Will I finally be able to climb the hill to our village at over 30kmh?
Steamwally thinks so ...

Stay tuned

Simon
 
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I have a full ACR kit, it's good only it's not that good! It’s a head, cam, carb and extractor manifold. With the full kit maybe....

Whereas this is a simple carb-swap? You’ve not shown how you’re getting more air in the engine, the carb will only meter what you already have, only better. You would not expect much more power, just better running. Unless the last one was a wreck?

Previously 35 up your hill, now 60? Improved to 40 more likey, are you sure?
 
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109SeriesIIA said:
I have a full ACR kit, it's good only it's not that good! It’s a head, cam, carb and extractor manifold. With the full kit maybe....

Whereas this is a simple carb-swap? You’ve not shown how you’re getting more air in the engine, the carb will only meter what you already have, only better. You would not expect much more power, just better running. Unless the last one was a wreck?

Previously 35 up your hill, now 60? Improved to 40 more likey, are you sure?
Click to expand...

Your running a 2A right not a 3?
Totally the improvement was massive but if you were to follow the whole back story there was a struggle with the old zenith, then i bought a new one (cheap **** copy) and it got worse, lots of dicking around with the 123 LX dizzy which finally got replaced with a distributor doctor one (love it).
The detail in the carb was that I had to replace the needle for one that can cope with altitude and yes the pancake air filter enable it to ingest more air, fuel consumption is off the scale though however I get (got) a much longer pull in 2nd and 3rd which meant I could get to 60 in second and change up to 3rd on the hill in question, what also to bear in mind is that I was only the 3rd owner and in Her previous life she spent all her time on an airfield as a fire tender so when we bought her she had less than 100k (km) on the clock, even the heater worked, which had never been connected, when i removed the bungs on the inlet/outlet pipe and flushed it clear water came out - yes my heater works like a new one .. most amazing.

Yes basically it was like rocket power in a somewhat S111 style. No problem now doing 100kmh on the autobahn and keeping up with daily traffic.
I never got around to full upgrade as needs demanded that I jump to a Disco 2 TD5 which feels very much like a modern S3 (to me).

Having met others with the same conversion here it seems engine condition and gearbox are important.

sorry to hear you haven't had the success I did
 
couple of bits I forgot,
The pancake filter didn't pass swiss mot, i bought a Ubend from HSJ and used the old inlet part and reconnected the breather and the original air filter.
All those clear plastic pipes got replaced with proper ones.
The vacuum pipe nipple broke of (now held on with JB weld!)

The downside to the tale is that after thrashing it about for a year or so the rear main oil seal (the one behind the flywheel) started to leak .. badly and the cheapy indian replacement leaked after a week.
 
Er.. read again. I have had real success, this success took far more than a carb change, and dizzy fitment. The gains you speak of are flat impossible if that's all you've done. Tuning of this kind takes getting more air through an engine, and it's very clear you've done none of this. Until you do this you will not burn more air, thus you will not see more power. It was bad enough that in the other thread you knocked the 123Ignition, when it was very obvious you don't understand it. In this thread you avoid the query or plain do not understand it. Obfuscation waffle about pipework or whatever means we can be pretty confident to call BS.

An SU carb (and maybe the silencer?) is good, yet not THAT good. One more go... those claims are possible. Via photographic proof, show how you achieve these. ie show us how you're getting air in to burn the fuel to match them. The concept is not difficult to understand. The key to big gains from these engines is the head and you're saying you've not done this. What have you done to remove the bottlenecks? Custard test please. Else this is fantasy.
 
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109SeriesIIA said:
Er.. read again. I have had real success, this success took far more than a carb change, and dizzy fitment. The gains you speak of are flat impossible if that's all you've done. Tuning of this kind takes getting more air through an engine, and it's very clear you've done none of this. Until you do this you will not burn more air, thus you will not see more power. It was bad enough that in the other thread you knocked the 123Ignition, when it was very obvious you don't understand it. In this thread you avoid the query or plain do not understand it. Obfuscation waffle about pipework or whatever means we can be pretty confident to call BS.

An SU carb (and maybe the silencer?) is good, yet not THAT good. One more go... those claims are possible. Via photographic proof, show how you achieve these. ie show us how you're getting air in to burn the fuel to match them. The concept is not difficult to understand. The key to big gains from these engines is the head and you're saying you've not done this. What have you done to remove the bottlenecks? Custard test please. Else this is fantasy.
Click to expand...

Ok mate you seem to have a bit of an issue with me, all you do is contradict and tell me i'm lying so I guess we are going to have to agree to disagree what I can tell is you is what I said in the past.
123 ignition (do you work for them) is not a solution for me.
The SU carb and the dizzzy doctor is.
Fact of the matter it made all the difference to me.
End of story.
 
When I last looked I ran a small mail-order company. Not a dizzy in sight. I have no issue with you. I don't do my own dentistry, I freely admit I know zilch. I find a pro. Minded to this, best not put false information on Dentistry forums, and I can't imagine why I would? When we don't understand something, or our grasp is so poor; we don't even know what we don't know - best to keep quiet.

Else, the take-away here is vast gobs of power from a carb and dizzy swap - I've the secret to eternal life, and aliens live under the sea.
 
109SeriesIIA said:
When I last looked I ran a small mail-order company. Not a dizzy in sight. I have no issue with you. I don't do my own dentistry, I freely admit I know zilch. I find a pro. Minded to this, best not put false information on Dentistry forums, and I can't imagine why I would? When we don't understand something, or our grasp is so poor; we don't even know what we don't know - best to keep quiet.

Else, the take-away here is vast gobs of power from a carb and dizzy swap - I've the secret to eternal life, and aliens live under the sea.
Click to expand...

For some people the answer is false teeth for others its expensive implants or vaneers, cleaning your teeth properly might help keep fillings at bay but in the end its all a personal point of view
in no way intended to give a false or misleading result as all of them can take a bit from an apple.
My solution, my results, take it as you will, no lies, no smoke n mirrors just many frustrating hours until I found what works for me up here.

The world is a disc, carried on the backs of Elephants riding a giant Turtle
 
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