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Location:
Finland
Registered:
June 2002
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Re: efi vs carby
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Mon, 07 October 2002 15:19
 
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To my mind the upside in getting twin carbies is that they are somewhat plentyful out there on used market. Yes, second hand units.
Those few units I've been involved with were in good condition, nothing was broken. Only re-alignment of butterflies was needed, and of course re-jetting them.
If we compare cost of independent throttle bodies with all relevant gadgets to a pair of used twin carbies - our imaginery weekend racer's decicion may very well turn to favour of carbs.
To get carbies run well we need to sort out ignition management. That'd preferably be a 3-dimensional model. This will jack up the price of carbie setup. This feature is standard in EFI setup.
No arguments there, EFI is the best. I'm not aware of recent price developement but I know of domestic racers paying like 3000 AU dollars for EFI.
A pair of used twin carbies with inlet manifold is rarely more than 700 AU dollars (over here). For race use regular ignition distributor can be tweaked to work decently well on used rpm band.
It's really a case of what is sought from upgrade. An everyday ride with occasional drop at local track - EFI is the way to go.
For a car that is solely raced on track and built up with limited budget, carbs are good. Some difference in top rpm performance when compared over to EFI, but not really worlds apart. Like Mr. Sherwood said, Atlantic engine gained 20hp at 6000rpm when EFI'ed. But don't those engines rev like crazy, so 6000rpm would present an rpm range just off idle  -?
To what I've been told, hp figures are very close to one another in 4-cyl rally engines revving to about 8000rpm.
-A.
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| | Subject | Poster | Date |
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efi vs carby
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Ribbo | Mon, 07 October 2002 02:03 |
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Re: efi vs carby
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EMP-2TG | Mon, 07 October 2002 02:43 |
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Re: efi vs carby
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Bill Sherwood | Mon, 07 October 2002 03:31 |
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Re: efi vs carby
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IRA11Y | Mon, 07 October 2002 04:25 |
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Re: efi vs carby
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Bill Sherwood | Mon, 07 October 2002 04:50 |
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Re: efi vs carby
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floody | Mon, 07 October 2002 05:17 |
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Re: efi vs carby
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Blown86 | Mon, 07 October 2002 05:29 |
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Re: efi vs carby
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GIN51E | Mon, 07 October 2002 05:32 |
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Re: efi vs carby
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floody | Mon, 07 October 2002 06:15 |
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Re: efi vs carby
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Norbie | Mon, 07 October 2002 08:24 |
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Re: efi vs carby
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gianttomato | Mon, 07 October 2002 10:18 |
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Re: efi vs carby
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RWDboy | Mon, 07 October 2002 06:41 |
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Re: efi vs carby
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GIN51E | Mon, 07 October 2002 08:27 |
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Re: efi vs carby
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Ribbo | Mon, 07 October 2002 08:21 |
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Re: efi vs carby
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SUPRAGTE | Mon, 07 October 2002 09:20 |
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Re: efi vs carby
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Grega | Mon, 07 October 2002 10:39 |
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Re: efi vs carby
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GIN51E | Mon, 07 October 2002 13:49 |
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Re: efi vs carby
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5KinKP60 | Mon, 07 October 2002 15:19 |
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Re: efi vs carby
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justcallmefrank | Tue, 08 October 2002 00:20 |
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Re: efi vs carby
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mrshin | Tue, 08 October 2002 00:34 |
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Re: efi vs carby
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thetoyman75 | Tue, 08 October 2002 00:39 |
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Re: efi vs carby
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mrshin | Tue, 08 October 2002 01:34 |
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Re: efi vs carby
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chrisss | Tue, 08 October 2002 09:18 |
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Re: efi vs carby
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Remedy | Tue, 08 October 2002 10:03 |
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Re: efi vs carby
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GIN51E | Tue, 08 October 2002 10:31 |
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Re: efi vs carby
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chrisss | Tue, 08 October 2002 11:24 |
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Re: efi vs carby
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rjenman | Fri, 21 October 2005 22:24 |
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Re: efi vs carby
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rjenman | Fri, 21 October 2005 22:25 |
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Re: efi vs carby
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hemi twofifteen turbo | Sat, 22 October 2005 01:29 |
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Re: efi vs carby
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Bill Sherwood | Sat, 22 October 2005 07:28 |
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Re: efi vs carby
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September_Squall | Sat, 22 October 2005 05:24 |
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Re: efi vs carby
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170bhp | Sat, 22 October 2005 08:03 |
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Re: efi vs carby
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oldcorollas | Sat, 22 October 2005 08:07 |
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Re: efi vs carby
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170bhp | Sat, 22 October 2005 08:15 |
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Re: efi vs carby
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river | Sat, 22 October 2005 10:26 |
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Re: efi vs carby
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170bhp | Sat, 22 October 2005 10:41 |
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Re: efi vs carby
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170bhp | Sat, 22 October 2005 10:44 |
