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Author Topic: Replacing the standard 2.2 cam with a Holbay, or S-cam. Issues?  (Read 1323 times)
Jon Weywadt
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« on: June 14, 2014, 02:45:46 pm »

One of the things I want to do is to install a Holbay, or S-cam in my Murena 2.2.

Before I attempt this I want to ask if it also requires to mount double carbs?
Or can the original single carb deliver the extra fuel that I assume the S-cam will cause the engine to consume?

If more fuel than one carb can deliver is needed, I will wait until I am ready to also convert to fuel injection. My MegaSquirt control should automatically adjust air/fuel mixture as the quick-response Lambda probe tells it.
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TimS
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« Reply #1 on: June 21, 2014, 01:44:55 am »

Jon
I believe I have a Holbay cam in my car. The carb is a Weber 34DMTR which replace the original worn out Solex as I understand.

Quite happy to post a photo of the carb if you like, but it is more than enough for the engine and after  tune today, is producing 120BHP.
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Anders Dinsen
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« Reply #2 on: June 28, 2014, 10:34:58 pm »

The Holbay cam runs very well with the original Solex 34CIC, Jon. No rejetting or anything is needed, and the carb can supply plenty enough air for the engine to breate up to 7000 rpm  Shocked

/Anders
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
Jon Weywadt
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« Reply #3 on: June 29, 2014, 12:21:32 pm »

The Holbay cam runs very well with the original Solex 34CIC, Jon. No rejetting or anything is needed, and the carb can supply plenty enough air for the engine to breate up to 7000 rpm  Shocked

/Anders

Thanks Anders. That is what I hoped  to hear.  Grin
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