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 How do i make my rapier run better
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onefunkyman

United Kingdom
60 Posts

Posted - 04 Nov 2015 :  08:37:27  Show Profile  Visit onefunkyman's Homepage  Reply with Quote
Simple tuning steps.....

1. convert to electronic ignition (costs less than £50)
go to Accuspark and use discount code SR10 for 10% off.

2. Change the carb and manifolds for the Sunbeam Alpine repro type made by WebCon UK. speak to Jerome Senn in the Alpine club as he champions them, although this kit is very expensive it will DRAMATICALLY improve the engine's economy, smoothness and power!
this is around the £500ish mark

3. port and polish the head, you can go a long way with the alloy head and it makes a good deal of difference. you can even go for bigger valves if you like but then it starts to get pricey! £200

4. Holbay camshaft, if you are starting with the 1725cc engine, why not add a holbay cam? the Head wont fit the carb set-up mentioned in stage 2.) and you can get more out of porting and polishing a standard head! the Holbay cam is rare but will give you better lift.

5. and finally computer controlled ignition system, not so scary or complicated - not even pricey either!! around £200 from AccuSpark will get you the full kit including the software to program it all for yourself. it even has a new distributor! (i have it on my H120)

6..... look out for fuel injection, it's currently under development but you didnt hear that from me ;)
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onefunkyman

United Kingdom
60 Posts

Posted - 02 Nov 2015 :  08:20:01  Show Profile  Visit onefunkyman's Homepage  Reply with Quote
swap all bits from 1725cc H120 engine ;)
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harley95

United Kingdom
28 Posts

Posted - 01 Nov 2015 :  19:48:26  Show Profile  Reply with Quote
Hi all i have removed my MK4 eng for a rebuild is it possable to reprofile the cam or change it to make it alround better ? or any other changes i can make ?

jbailey
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