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which 42 lb injector is better to run in an ls1 Bosch design 2 or 3 ?

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Old 12-10-2008, 08:02 PM
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Default which 42 lb injector is better to run in an ls1 Bosch design 2 or 3 ?

I am fixing to order a set of injectors for my H/C/I stock bottom end ls1 that sees mostly street driving and will see a little track use. Which is better the bosch design 2 like the green top injectors or the design 3 blue injector? The design 3 already have the ev1 connection on them.
I decided on the 42 lb injectors because I might add a small dry kit later.
Old 12-13-2008, 10:38 AM
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I dont have any experience with the Bosch 3s, but i never had any problems with the green tops that were in my Lightning (From the factory) My buddy has the same injectors on his heads/cam Firehawk, and hasnt had any issues that im aware of.. they plug right in too.
Old 12-13-2008, 12:50 PM
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The Bosch Design III's are a more efficient injector with better atomization and spray pattern characteristics. IN MY HUMBLE OPINION, I would not use the 'blue giants' because of the 'V' spray pattern. FICINJECTORS has a fantastic price on the ASA/GTP white 36 lb/hr @ 3 bar Bosch Design III's. These injectors work wonderfully in LSx engines.




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