 | Home > V8 > Weber Edelbrock 500 vs SU carburettors |
 
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| jomara Member Since: 26 Oct 2009 Location: Lanarkshire Posts: 1756   
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I had looked at replacing the boxer setup on my Bowler with a Weber 500 but decided against it as some of the other guys using them were having problems with getting them to run reliably off road
 2014 110 2.2TDCi XS Station wagon
1971 Bowler Tomcat 88 4.2 V8 Auto 2022 110 250D XS |
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10th Nov 2016 7:54am |
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| Inigo Member Since: 13 Nov 2011 Location: Kent Posts: 614  
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I had an Edelbrock 500 and it was great except on very steep inclines where it would stall. I bought some spring-loaded off road needles, but never got around to fitting them.
I also found that you could get vapour lock where the petrol in the bowls would boil. I fitted a phenolic spacer to lift the carb off the engine block and insulate it, this seemed to help. |
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10th Nov 2016 10:36am |
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| charcoal Member Since: 28 Jul 2014 Location: Hampshire Posts: 941 
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Interesting, never heard of either of those problems. Is the petrol boiling a problem caused by off roading too or just running for long periods of time? 1999 Land Rover Defender 110 td5 station wagon
1998 Land Rover Defender 110 County Station Wagon ~ Sold 1995 Land Rover Defender 110 V8 Station Wagon ~ Sold 
1985 Land Rover 110 ex mod project Tithonus ~ Sold |
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10th Nov 2016 2:55pm |
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| Iggle piggle Member Since: 10 Sep 2014 Location: Wales Posts: 378 
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I've had no experience of the Weber Edelbrock set up, but can I ask why you are thinking of going down this route?
More power? better MPG? or are you having problems with the SU's? |
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10th Nov 2016 3:20pm |
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| Inigo Member Since: 13 Nov 2011 Location: Kent Posts: 614
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Petrol boiling only happened on a few occasions. Once was very hot day off roading in sand, high revs, low speed, the other was sitting in traffic queue for Eurotunnel on a hot day, it stalled at the ticket booth and I had to get the guy to help me push it out of the way. Whilst waiting for the Eurotunnel tow truck it cooled down enough to restart and I managed to drive off.
Adding the 10mm-ish thick insulating spacer was enough to stop it happening again. |
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10th Nov 2016 3:43pm |
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| charcoal Member Since: 28 Jul 2014 Location: Hampshire Posts: 941
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More power would be the main reason, heard of people getting 20-30 horses from it. Don't want fuel injection also. It would also be nice to have one carburettor so balancing is no longer required.
Did it run normally after you were able to drive off? Was the engine temperature too high on the fuel gauge? 1999 Land Rover Defender 110 td5 station wagon 1998 Land Rover Defender 110 County Station Wagon ~ Sold 1995 Land Rover Defender 110 V8 Station Wagon ~ Sold
1985 Land Rover 110 ex mod project Tithonus ~ Sold |
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11th Nov 2016 12:19am |
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| Inigo Member Since: 13 Nov 2011 Location: Kent Posts: 614
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And the sound, the throaty induction roar as the secondaries open up was wonderful.
It drove perfectly after it had cooled down a little and wasn't showing in the red zone on the temp gauge. Initially I had overheating problems, but added new viscous coupling for fan, had the exhaust manifolds zircotech coated and changed the temp sender and gauge for VDO so I got a better idea of what actual temps were. Petrol boiling in carbs seemed to be a heat soak thing, so normal heat from engine was enough to boil petrol in traffic. The spacer sorted it out and was simple to fit. I was concerned that there would be enough room under the bonnet, but it was fine. |
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11th Nov 2016 9:57am |
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| charcoal Member Since: 28 Jul 2014 Location: Hampshire Posts: 941
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Doesn't sound like a deal breaking problem then, do you have any pictures of the setup? 1999 Land Rover Defender 110 td5 station wagon
1998 Land Rover Defender 110 County Station Wagon ~ Sold 1995 Land Rover Defender 110 V8 Station Wagon ~ Sold
1985 Land Rover 110 ex mod project Tithonus ~ Sold |
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11th Nov 2016 4:24pm |
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| muddypaws Member Since: 22 Jan 2013 Location: Leicestershire Posts: 122  
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Only just found this thread.
My old cobra had an Eddie in it. A great carb to work on & very adjustable but a 500cfm would certainly very much overfuel a standard 3.5 in a low state of tune. John Eales used to use SU's right upto 250bhp & if they are jetted right, I am sure they are your best bet as they work well on all sorts of inclines Richard Defender 90 SVX Last edited by muddypaws on 14th Dec 2016 3:07pm. Edited 1 time in total |
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14th Dec 2016 2:35pm |
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| muddypaws Member Since: 22 Jan 2013 Location: Leicestershire Posts: 122
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 Click image to enlarge Richard Defender 90 SVX |
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14th Dec 2016 2:39pm |
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| Romadog Member Since: 07 Jul 2011 Location: Powys Posts: 1746 |
Su's all day long !
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14th Dec 2016 7:06pm |
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| charcoal Member Since: 28 Jul 2014 Location: Hampshire Posts: 941
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At the price the conversion kits cost it wouldn't be something I could do any time soon anyway. If my problems are stemming from the su carburettors then it'll be easier to just get a new pair. Also that engine bay looks fantastic muddypaws
1999 Land Rover Defender 110 td5 station wagon
1998 Land Rover Defender 110 County Station Wagon ~ Sold 1995 Land Rover Defender 110 V8 Station Wagon ~ Sold
1985 Land Rover 110 ex mod project Tithonus ~ Sold |
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16th Dec 2016 1:14am |
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| Morepower Member Since: 08 Jan 2013 Location: Fife, Scotland Posts: 630 
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Burlen Fuel systems are the people to speak too regards spares and new/reconditioned carbs... They have the rights to the SU/Amal and others... Really nice people to deal with and definitely know their product... Hope this helps
Regards Tim It doesn't matter how bad it is, It can always get worse... 2013 Bowler 110 (Sold) 2016 Bowler 90 Rally Spec (Sold) |
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16th Dec 2016 7:36am |
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| charcoal Member Since: 28 Jul 2014 Location: Hampshire Posts: 941
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Thanks for the suggestion Tim, just contacted them with regards to a replacement pair of hif44s. Don't know how I didn't find them before! 1999 Land Rover Defender 110 td5 station wagon
1998 Land Rover Defender 110 County Station Wagon ~ Sold 1995 Land Rover Defender 110 V8 Station Wagon ~ Sold
1985 Land Rover 110 ex mod project Tithonus ~ Sold |
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17th Dec 2016 1:38am |
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