Weber 500+dual port manifold instead of efi sistem?

[panic]

What would be the performance difference beetwin a webber 500 carbed griffith and a fuel injected one? I'm looking for a performant alternative to efi in my griffith, yet simple and reliable.

[clive f]

Andy, aka Guillotine will be able to answer this one, drop him a HM.

or ANDY.......!!!

[Bluebottle]

clive f said:

Andy, aka Guillotine will be able to answer this one, drop him a HM.

or ANDY.......!!!

Andy had Quad Dellorto's on the Monster...Sounded Awesome

[trackcar]

how much does it cost to convert to carbs panic?

[Boosted LS1]

I've heard some very good things about the webber/carter/edlebrock set up. I'd use a single port manifold or the newish edlebrock manifold if going this route. A magazine test also said there was hardly any difference between this carb install and the efi. Power was the same.

[panic]

trackcar said:

how much does it cost to convert to carbs panic?

Th weber 500 carb and its matching intake is about 500 pounds...plus assembling/etc...

[GreenV8S]

panic said:

Th weber 500 carb and its matching intake is about 500 pounds...plus assembling/etc...

Does this need tuning once you've got it bolted on? I imagine that's not something that the average DIYer would be able to do.

[panic]

GreenV8S said:

panic said:

Th weber 500 carb and its matching intake is about 500 pounds...plus assembling/etc...

Does this need tuning once you've got it bolted on? I imagine that's not something that the average DIYer would be able to do.

Yep, i'm sure it'll need fine tuning of course...

[pwd95]

Spoke to a chap at Castle Coombe last year who was running this exact set up on his 4.6 MGB. He said changing the jet needles was quite an easy task.

Few pics of him in action on here. Great V8 forum. Probably has the answer to your question on there too.


http://www.v-8.org.uk/forum/viewtopic.php?t=2322&a...

[rev-erend]

I've heard the MPG can be quite bad but again - talk with someone like Guillotine to get the actual facts..

[pwd95]

rev-erend said:

I've heard the MPG can be quite bad but again - talk with someone like Guillotine to get the actual facts..

You've become very concerned with mpg's recently Rev, whats up?

[Bluebottle]

GreenV8S said:

panic said:

Th weber 500 carb and its matching intake is about 500 pounds...plus assembling/etc...

Does this need tuning once you've got it bolted on? I imagine that's not something that the average DIYer would be able to do.

Single Carbs like this are pretty simple to DIY tune, so long as you are supplied with the carb with the corrects jets for your engine. You can set it up with a Colour Tune kit.
Twin and Quadrouple Carbs are a bit more complex to set up tho as each carb is individually tuned and all the carbs then have to be balanced with each other.

[Laird]

We had no probs other than having to change the jets for the MOT

[Boosted LS1]

Singlecoil fitted one onto his TR8 and dynoed it. He then changed engines but the carb was still in tune when he dynoed it for the second time. So despite changing to a bigger engine it seemed able to accomodate the changes in air flow and add fuel to suit.

[rev-erend]

pwd95 said:

rev-erend said:

I've heard the MPG can be quite bad but again - talk with someone like Guillotine to get the actual facts..

You've become very concerned with mpg's recently Rev, whats up?

Me .. no chance.

My car uses no fuel .. can't beat that..

[griffdude]

The new John Eales X manifold with 4 twinchoke carbs looks good.