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  #16  
Old 29-08-2017, 09:42 AM
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Originally Posted by johnymd View Post
..... Not sure how much a pair of new SU's are .......

Can you buy new SUs? I contacted Burlen a while ago and they just aren't interested in supplying carbs for our cars.

Have a look here - Datsun or Nissan aren't event listed:

http://sucarb.co.uk/
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  #17  
Old 29-08-2017, 09:51 AM
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Looks like Burlen don't want to sell anything to anyone - everything I looked at is 'temporarily out of stock'
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  #18  
Old 29-08-2017, 10:24 AM
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I think you can get a pair of HS6 carbs from Burlen. They always say stuff is out of stock because they manufacture to order. Having said that, there will be a lot of fettling to do on the HS6 as the throttle linkage is different and I am not sure they bolt straight onto a nissan balance tube.

The best bet is to go to Z Therapy in the States. They do the proper job and are not too expensive (at least until the shipping costs are added). Still cheaper than Webers & Injection kits. They also do full rebuild kits.

Ali (Smileyinside) has used ZTherapy so he may be able to give some perspective.
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  #19  
Old 29-08-2017, 10:39 AM
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I was as wondering if it's down to the fuel having Ethanol in it that causes the problem. I seem to remember the tip of the needle valve is rubber / rubber coated. The Ethanol could be degrading it as it seems to attack everything else.

Mike B
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  #20  
Old 29-08-2017, 10:52 AM
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If only you could order a new set of 1.75" or 2" SUs with linkages for a Z.

My carbs are fine by the way so I'm not looking for any but if a really good pair of 2" came on the market I'd be interested. My engine is a modified 2.8 like my old track car and 2" SUs work well on those.

Anyway I have a set of new Weber DCOE40s, Mangoletsi manifold and Nismo fuel rail ready to go on over the winter, however I'll keep my original carbs and manifold in case I can't get them working how I'd like. I need it to work well over the full rev range that's why I've gone for 40s. I'm a bit apprehensive because it's venturing into the unknown and so many cars I've seen with triples seem to have issues - not least horrendous fuel consumption. My car (apart from when it flooded!) is good on fuel and my old track car was too.

I just feel I need to join the triple brigade to see if a performance advantage can be gained on my DJR modified engine, the previous owner was against triples.
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  #21  
Old 29-08-2017, 12:45 PM
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I wonder how many of those people with issues have had their car on a rolling road and gone through a full proper setup?
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  #22  
Old 29-08-2017, 12:54 PM
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I wonder how many of those people with issues have had their car on a rolling road and gone through a full proper setup?
Yes and do the people 'tuning' have all the knowledge/jets etc.

Anyway I will - already discussed it.
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  #23  
Old 29-08-2017, 01:42 PM
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Quote:
Originally Posted by Rob Gaskin View Post
If only you could order a new set of 1.75" or 2" SUs with linkages for a Z.

My carbs are fine by the way so I'm not looking for any but if a really good pair of 2" came on the market I'd be interested. My engine is a modified 2.8 like my old track car and 2" SUs work well on those.

Anyway I have a set of new Weber DCOE40s, Mangoletsi manifold and Nismo fuel rail ready to go on over the winter, however I'll keep my original carbs and manifold in case I can't get them working how I'd like. I need it to work well over the full rev range that's why I've gone for 40s. I'm a bit apprehensive because it's venturing into the unknown and so many cars I've seen with triples seem to have issues - not least horrendous fuel consumption. My car (apart from when it flooded!) is good on fuel and my old track car was too.

I just feel I need to join the triple brigade to see if a performance advantage can be gained on my DJR modified engine, the previous owner was against triples.

Where did you buy your triples from Rob? That may be my next upgrade.
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  #24  
Old 29-08-2017, 02:20 PM
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What do people consider 'bad fuel consumption' on these cars?
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  #25  
Old 29-08-2017, 02:33 PM
franky franky is offline
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Originally Posted by Rob Gaskin View Post
Yes and do the people 'tuning' have all the knowledge/jets etc.

Anyway I will - already discussed it.
I think that's more than half the trick, finding some where that are knowledgable and comftable in setting them up.
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  #26  
Old 29-08-2017, 02:37 PM
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'I've seen with triples seem to have issues - not least horrendous fuel consumption. My car (apart from when it flooded!) is good on fuel and my old track car was too.

I just feel I need to join the triple brigade to see if a performance advantage can be gained on my DJR modified engine, the previous owner was against triples.'



Iv only ever been in a zed with webbers on

I'd like to experience a few other zeds ie like standard zed with su never been in

Now mine running bit on the rich side but I got to oulton park and my hotel then back to the track then home on 50 pound worth petrol dunno what other people are like but I don't drive it every week so I class it as a treat

Last edited by Rob Gaskin; 29-08-2017 at 03:05 PM.. Reason: Making the quote more obvious.
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  #27  
Old 29-08-2017, 03:04 PM
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Originally Posted by uk66fastback View Post
What do people consider 'bad fuel consumption' on these cars?
I've heard of 20 mpg.

All 3 of my Zeds have done very high twenties and come to think of it so did my 370Z.

I would hope to get 25 out of mine with triples - we will see.
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  #28  
Old 29-08-2017, 03:11 PM
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I dunno how work out miles Peter gallon but my dad used to say does 13 miles to gallon driving steady and thrashing it he sed it was 9 mile to the gallon
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  #29  
Old 29-08-2017, 03:14 PM
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When I did Saturday and Sunday at Donny I spent just shy of 100 pound on petrol haha. I did 50 at oulton but hotel was 60 pound haha
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  #30  
Old 29-08-2017, 03:22 PM
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I dunno how work out miles Peter gallon but my dad used to say does 13 miles to gallon driving steady and thrashing it he sed it was 9 mile to the gallon
That's unacceptable to me. It shouldn't take that much fuel to move a 240Z.

That needs tuning Christian.
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