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Author: Subject: Injector Blanks
AntonUK
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posted on 22/1/12 at 04:11 PM Reply With Quote
Injector Blanks

I'm in the process of putting together my GSXR TB's on a ST170 manifold. Obviously I need to blank off one of the sets of injector holes. I know the norm is chemical metal, but I would like a removable solution in case I ever decide to got to staged injection or wish to change the injector location (testing on a RR for example).

Is there an off the shelf "injector blank' that is available or do I need to have something knocked up on a lathe?
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wombat
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posted on 22/1/12 at 04:21 PM Reply With Quote
Blanks

I have a spare set for GSXR 600s if interested....
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scootz
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posted on 22/1/12 at 04:23 PM Reply With Quote
Drop Flakmonkey a U2U... I'm sure he could sort you out!




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davidimurray
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posted on 22/1/12 at 04:24 PM Reply With Quote
Never use chemical metal. I learnt the hard way when the slug was sucked out of the throttle bodies and into the engine, resulting in bent valves




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AntonUK
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posted on 22/1/12 at 04:29 PM Reply With Quote
Wow quick response thanks

Wombat you have U2U
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wombat
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posted on 22/1/12 at 04:39 PM Reply With Quote
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dave r
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posted on 22/1/12 at 05:14 PM Reply With Quote
apparently raceline do the blanks.......
i couldnt find them when i was looking for them

mine are quite a close hole size for a bsp thread, so i tapped mine up and pu bungs in

no good if you want to re-use them though




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pjay
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posted on 22/1/12 at 08:57 PM Reply With Quote
quote:
Originally posted by davidimurray
Never use chemical metal. I learnt the hard way when the slug was sucked out of the throttle bodies and into the engine, resulting in bent valves


Not a problem if the slug is shaped so that it can't be sucked in. I filled mine to the lip on the injector ports - on the GSXR1000s this gave a shaped slug.
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Jenko
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posted on 23/1/12 at 10:11 AM Reply With Quote
quote:
Originally posted by pjay
quote:
Originally posted by davidimurray
Never use chemical metal. I learnt the hard way when the slug was sucked out of the throttle bodies and into the engine, resulting in bent valves


Not a problem if the slug is shaped so that it can't be sucked in. I filled mine to the lip on the injector ports - on the GSXR1000s this gave a shaped slug.


Totally agree - Chemical metal works a treat, but as long as you form is around the shape of the entire injector port. So a cross section would look 'T' Shaped.

I would not worry about re using the ports...if you go for an 8 injector, then you would have the GSXR injectors in the current position, and a set pointing down the trumpets.




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