The bottom end is starting to get more noisy, so my thoughts are heading towards a rebuild. Has anybody built a CU with EFI? The guy I used to set up my twin carbs builds Megasquirt EFI systems for a living and the idea of sticking this on instead of twin carbs is getting me tingly. I would not be after high performance, but more torque and a small increase in hp would be nice and I would have thought that there would be gains in economy.
What are peoples thoughts / opinions / constructive criticism?
CU EFI
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kevtherev
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Re: CU EFI
According to the Samba fuel consumption is the same.
Power is better but thats because the inlet geometry is different
VW have shipped fuel injected vans to the USA for many years before we ever saw them.
Plonking an efi system means you'll need to alter valve timing and cam profile.
Otherwise it's pointless imo
Power is better but thats because the inlet geometry is different
VW have shipped fuel injected vans to the USA for many years before we ever saw them.
Plonking an efi system means you'll need to alter valve timing and cam profile.
Otherwise it's pointless imo
AGG 2.0L 8V. (Golf GTi MkIII)
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richie-b
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Re: CU EFI
Thanks Kev
Yeh, early days yet and just a thought going around in my head. My other thought about it was the reliability of an EFI system over the carbs? Not sure whether there is any difference or not.
By the way, still got the steel wheels on the van that I had off you many moons ago!
Cheers,
Rich
Yeh, early days yet and just a thought going around in my head. My other thought about it was the reliability of an EFI system over the carbs? Not sure whether there is any difference or not.
By the way, still got the steel wheels on the van that I had off you many moons ago!
Cheers,
Rich
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kevtherev
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Re: CU EFI
Id say reliability depends on your experiences with both.
Personally I don't have any issues with carburettors.
I dare say due to the electronics involved to keep emissions down, efi can be more problematic should a component fail.
But I am only guessing.
Carburettors seem simpler
Personally I don't have any issues with carburettors.
I dare say due to the electronics involved to keep emissions down, efi can be more problematic should a component fail.
But I am only guessing.
Carburettors seem simpler
AGG 2.0L 8V. (Golf GTi MkIII)
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sarran1955
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Re: CU EFI
Hello,
For the price of your Megasquirt, you could have a deeper crank, conrods and 'A' pistons,
and/or go big bore to 2.1 and have the heads fly cut...
Everybody moans about Solex, but so few people realise that the 22 mm venturi can be swapped out for a larger tube
An increase from 70 bhp to 110bhp is perfectly realisable 'out of the box', with no funky electronics
Air-Cooled Bliss...
Cordialement,
For the price of your Megasquirt, you could have a deeper crank, conrods and 'A' pistons,
and/or go big bore to 2.1 and have the heads fly cut...
Everybody moans about Solex, but so few people realise that the 22 mm venturi can be swapped out for a larger tube
An increase from 70 bhp to 110bhp is perfectly realisable 'out of the box', with no funky electronics
Air-Cooled Bliss...
Cordialement,
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richie-b
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- Joined: 25 Apr 2006, 21:31
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- Location: shrewsbury
Re: CU EFI
100-110hp would be fantastic!
I am being drawn towards doing my own rebuild at the moment and would stick to solex. I have a good deal to learn before starting as I like the idea of going a bit warmer, but have absolutely no knowledge of how to achieve what I want. I replaced piston rings, valve guides, lapped in valves last year in order to bring compression back to reality and to stop burning oil. That has been OK, so I think I could handle a rebuild if I take my time and spend some time in books and asking questions. Just need to find a reasonable engine to rebuild first.
I am being drawn towards doing my own rebuild at the moment and would stick to solex. I have a good deal to learn before starting as I like the idea of going a bit warmer, but have absolutely no knowledge of how to achieve what I want. I replaced piston rings, valve guides, lapped in valves last year in order to bring compression back to reality and to stop burning oil. That has been OK, so I think I could handle a rebuild if I take my time and spend some time in books and asking questions. Just need to find a reasonable engine to rebuild first.