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Rb26 Injectors Without Top Rubbers?

Chris Wilson

By Chris Wilson,
in Engines & Forced Induction

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Chris Wilson Proficient

Chris Wilson

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I want to use some Siemens 850 cc / minute injectors from http://www.fiveomotorsport.com/PartsJPEGs/...mens%203145.jpg These are turned down to match the head end seals, but although the feeds are a perfect fit in the stock rail there's no room for the top compression rubbers, the single ribbed ones that squash the injector into the bottom seal. Nonetheless they are a tight fit and the bottom seals are compressed. Anyone else running after market injectors without the top "compression" rubbers, which, I suspect, are for noise isolation anyway? Thanks. I like these as A: They are branded and B: They have published lag times and C: I have used their Pico style ultra short ones in other projects with great success also D: They are a sensible price. The Motec M800 is happy with these low resistance peak and hold type injectors, so no worries there.

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Chris Wilson Proficient

Chris Wilson

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I thought an image would help.

These Siemens ones are a tight, perfect fit against the bosses of the stock rail, so I guess they'll be fine, no way can they lift anyway :(

What I mean is the part of the body encircled in pink is hard and true against the stock rail injector bosses when the rail is bolted up, and the bottom of the injectors compresses the bottom seals adequately.

siemens.jpg

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