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Hello!
- Thread starter riske
- Start date
Mr.F
Inactive
The easiest fit are the Hitachi carbs from a 240Z. Pretty much everything will bolt up and drop into place - minor mods to waterways, 240Z balance bar preferred, use 240Z airbox and heat shield - job done.
You can also adapt the 1.75" SU carbs (either HS side float or HIF float under). These will bolt onto your existing manifold, but you will have to fabricate linkage between the carbs, your drop link attachment, revise the fuel pipes and overflow pipes and probably use K & N or similar pancake filters.
The 240Z carbs are like a refined version of the HS SU carb. Bear in mind that nozzle assemblies for the 240Z carb are no longer available, so they cannot be fully refurbished. Everything else comes in a kit. We stock.
Also bear in mind that there are two types of 240Z carb - the early version with four screws holding the dashpot on and the later (more common) version which has three screws on the dashpot. The latter type are preferred in terms of parts availability.
You can also adapt the 1.75" SU carbs (either HS side float or HIF float under). These will bolt onto your existing manifold, but you will have to fabricate linkage between the carbs, your drop link attachment, revise the fuel pipes and overflow pipes and probably use K & N or similar pancake filters.
The 240Z carbs are like a refined version of the HS SU carb. Bear in mind that nozzle assemblies for the 240Z carb are no longer available, so they cannot be fully refurbished. Everything else comes in a kit. We stock.
Also bear in mind that there are two types of 240Z carb - the early version with four screws holding the dashpot on and the later (more common) version which has three screws on the dashpot. The latter type are preferred in terms of parts availability.
richiep
Club Member
As far as the 240Z carbs are concerned, there are a couple of trader sources worth trying. Geoff Gale's Auto Active in Bristol list 240z carb setups as available on the parts page - £150 for SH, £400 for rebuilt. He also has some 2" SUs for £250 (another common upgrade using the 2" Jag SUs instead of the 1 3/4" originals). See Datsun Z cars original and restored engines, grearboxes, exhausts and other parts
Duncan Pearcey (RallymanDP on here) at the Z Farm in N Yorks might be able to help too. Pete Macdonald (pmac on this forum) is also a useful person to talk to. You might be able to source the 240z carb setup from any of these guys and if you need parts (with the caveat he gives above about availability of certain items), Mike Feeney is the man to talk to.
Hope that helps.
Lots of people doing engine swaps these days - but you'll actually find that the vast majority of parts for the L series engine are still available so that's not necessarily a reason for changing engines. There's also plenty of performance boosting work you can do to the L - dig through the forum here, or those at classiczcars.com and hybridz.org (the latter for the serious performance stuff or engine swaps).
Duncan Pearcey (RallymanDP on here) at the Z Farm in N Yorks might be able to help too. Pete Macdonald (pmac on this forum) is also a useful person to talk to. You might be able to source the 240z carb setup from any of these guys and if you need parts (with the caveat he gives above about availability of certain items), Mike Feeney is the man to talk to.
Hope that helps.
Lots of people doing engine swaps these days - but you'll actually find that the vast majority of parts for the L series engine are still available so that's not necessarily a reason for changing engines. There's also plenty of performance boosting work you can do to the L - dig through the forum here, or those at classiczcars.com and hybridz.org (the latter for the serious performance stuff or engine swaps).
Ian Patmore
Well-Known Forum User
The flat top carbs can be superior to the 240z Su type, it just takes more skill to set them up. Usually the flat tops become "boat anchors" as nearly everyone can't. Flat top carbs can be found on race winning 260z's and running well on standard cars in the UK, US and Japan. They have a fuel enrichment circuit that the SU type don't that can improve performance.
But for ease, go the SU type way, learning how to get flat tops to work, is not for the novice.
Guys im only listening to everyones advice on what to do as i have only had the car 5 mins. I was told the carbs float is stuck open and is flowing too much fuel. Car floods easily with little choke and is very rich.
I wouldnt mind sticking with flat tops and becoming an expert, i have only time for this car and im all ears.
Anyone a flat top expert around Kent? Thanks
I wouldnt mind sticking with flat tops and becoming an expert, i have only time for this car and im all ears.
Anyone a flat top expert around Kent? Thanks
Ian Patmore
Well-Known Forum User
Moggy, the fuel "bowl" on a flat top is under the body of the carb, its intergral.