"Trevor Slattery, ACTOR" (anacostiabikecompany)
03/17/2017 at 10:24 • Filed to: None
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"Trevor Slattery, ACTOR" (anacostiabikecompany)
03/17/2017 at 10:24 • Filed to: None | 2
| 12 |
http://sucarb.co.uk/news/new-development-2017/
The system will be supplied complete with ECU and all components required to fit, including the new carburettor units.
Initial tests are complete and have been conducted using a Jaguar 4.2 E-Type engine both on the dyno and in the car.
This is BIG news in car restoration land.
fourvalleys
> Trevor Slattery, ACTOR
03/17/2017 at 10:34 |
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In a single SU carb? Wow...
It hurts when I consider what the price will probably be...
RamblinRover Luxury-Yacht
> fourvalleys
03/17/2017 at 10:42 |
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Probably something like the Hilborn EFI systems plus another 30-50%. Which is to say, “OW!”
Urambo Tauro
> Trevor Slattery, ACTOR
03/17/2017 at 10:51 |
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So... like a TBI?
functionoverfashion
> Urambo Tauro
03/17/2017 at 10:58 |
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It seems... exactly like a TBI.
crowmolly
> Urambo Tauro
03/17/2017 at 11:03 |
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Yeah, Holley does it too.
kanadanmajava1
> fourvalleys
03/17/2017 at 12:06 |
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If the main markets are Jaguar engines, I can probably forget these. Even the Jenvey’s “fake carburetor” is annoyingly expensive.
BiTurbo228 - Dr Frankenstein of Spitfires
> Trevor Slattery, ACTOR
03/17/2017 at 12:20 |
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Soooo....
It’s fuel injection without the added benefit of something to measure Mass Airflow (which carbs do natively, and modern FI with MAF sensors also does) so the fuelling will be as efficient as old-school Fuel Injection (read worse than well set up carbs), with the added complication of having 4-8 separate fuelling and air measurement systems (so it misses out on the simplicity angle for single point TBI, and the ease of mapping of FI systems that measure airflow from a single point).
It’s Fuel Injection for the glamour brigade, inferior in every way to its competitors aside from ‘looking like a carb’.
Kanaric
> BiTurbo228 - Dr Frankenstein of Spitfires
03/17/2017 at 13:02 |
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holly’s uses a speed density sensor of some kind aka a MAP sensor, so I assume these SU efi will use something similar.
RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars
> Trevor Slattery, ACTOR
03/17/2017 at 13:36 |
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Something like this would be awesome for cars with smaller engines! Would love to get something like this on my FIAT 126p when I import it! It has a Weber of some sort AFAIK....a little power and economy bump from something like this would be nice! :)
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BiTurbo228 - Dr Frankenstein of Spitfires
> Kanaric
03/17/2017 at 19:34 |
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Yeah MAP (Manifold Absolute Pressure) is the slightly worse method of measuring fuel. Both MAF (Mass Air Flow) and carbs utilise volume of air to directly influence fuelling, whereas MAP-based injection calculates assumed airflow by measuring pressure.
By no means a bad system, but you’ll be paying quite a lot for this SU-alike FI system when it’s only real benefit over the original carbs, a proper FI system, or ITBs is that they look like SU carbs (but you can say you’ve got fuel injection).
I suppose i just have different priorities though :) i’d rather spend my exorbitant amounts of cash on a Fuel Injection system that offers the best possible performance, rather than one that looks old ;)
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Kanaric
> BiTurbo228 - Dr Frankenstein of Spitfires
03/20/2017 at 16:55 |
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I’d imagine that another benefit is that if you change altitudes regularly that the aftermarket EFI will adjust. I live in the west so if I had say a 240Z or something like that I can see benefit there.
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BiTurbo228 - Dr Frankenstein of Spitfires
> Kanaric
03/20/2017 at 18:17 |
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Ah, yeah I will admit that would be a benefit :)
Still, for the price you’ll be paying for these you could probably go full-on throttle-bodies, or at least a proper MAF-based fuel injection system, so the only thing you’re actually paying a premium for is the way it looks while you lose out on performance.