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Old 11-10-2011, 02:20 PM
softic softic is offline
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Join Date: Jul 2011
Location: Moscow, Russia
Posts: 59
Default Re: Mini R56 2009 Factory JCW HFS-3 Install (Cooper s owners too)

Quote:
Originally Posted by Richard L View Post
I like to confirm howerton's comment, either run a small jet or go for 100% methanol ro avoid blowning out the sparks.

Assuming the mini uses 400cc/min fuel injectors. 15-20% of fuel is 240-320cc/min. At present, you are injecting over 450cc/min with a 0.8mm jet. The size is too big for an untuned engine. The reason for your power loss.
Richard,

Do I get it right that for 400cc/min injectors and 1.4 Bar boost I will need 0.5mm nozzle? (I have the same engine in my car)
Or placing 0.5mm restrictor is okay?

Thanks!
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