Vehicle & Technical > Suzuki

SU Carb attachment

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V8MoneyPit:
Not a case of one being 'better' that the other as such. A correctly set up carb will require a specific needle type to suit a specific engine. All engines require a 12:1 or 14:1 air to fuel ratio (can't remember the exact ratio). The job of the carb or injection system is to provide that ratio across the rev range and load range.

The BDL just seems to work quite well with the 413 engine. It may not be perfect and only a rolling road session will get it spot on. You could have 2 apparantly identical engines and they could need different needles. Just because of slight port casting differences, CR differences, etc. But as long as you don't want to squeeze out the last hp or mpg, close enough is good enough!

Hovis:
MPG is not an issue really and who needs more power than a 413 has to offer?! :lol:

V8MoneyPit:
Exactly!  :lol: Check the needle in the carb you have and if it's a BDL, bolt it on and try it. You will need to tweak the mixture screw to get the emissions to MOT levels. Then take it for a run and see if it runs OK. After a blast down the road check the colour of the spark plugs to make sure it's not over lean at high revs. If they are a nice tan colour, all is well.

generation-x:
hovis your have better luck gettin intouch with tim weston @ rhino-central as he has merged with sj-uk
he will be able to answer ur questions about the su conversion
or ask me lol

simon

V8MoneyPit:
No disrespect to Tim, but it was a Rhino Central one I fitted and it wasn't exactly brilliant quality..... and it needed modifying to fit my car. I did speak to Tim about it and he did take note of what I had to do. So the product might be a little different now.

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