Hi just wondering is this a good price and will it run on a 998?

http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0083681152


Thanks
Steve

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Classic Not Plastic

It's not cheap, and not in Australia.

Jetted correctly, the 40mm Dellorto/Weber is good for a small bore (998/1100).

I would run either a HS4 (1.5"), HS6 (1.75") or HIF44 (1.75") on a small bore.

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This will bring howls of derision but I actually think a good big SU (1 1/2 or HIF44) is a better carby for a road car than a weber/ dellorto type.

Its true that a side draught will produce more power and if i was racing I wouldn't consider any other type. However they lack flexibility in road conditions, they cough and splutter and technically should be re-jetted for every 100 metres variation you travel above or below sea level. The reality of course is that they are not rejetted and the finite tune is a compromise.

The SU type is a variable type carby where the induction vaccuum sucks open the piston which allowing the most optimum amount of fuel and air. The amount the piston is sucked open depends on what the engine demands. The tapered needle controls the fuel being feed into the engine.

This is an area where two very strong camps exist - those pro and those con. There is, as I said more power to be made from a weber / dellorto but if you want a smooth easy to drive car in every day traffic then IMO an SU is the better bet.

Finally - the best way to have either type of carby tuned and jetted for your car is on a dyno by someone who has lots of needles and jets to try and get the best mix. All cars are slightly different.

If you really want a 40DHLA, buy it here, IMO. Cheaper and easier.
They were commonly used on Alfa 2L motors in the 70s and early 80s, so plenty are still about.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

In fact the rest of the car probably rusted around them leaving two carbs and an alloy head sitting on the ground
KB

Too true.. my mate bought an Alfetta 1750GTV sitting in a field for $50. Motor and transaxle were about all that was useable.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.