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Yet Another NOS Question!

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Old 01-24-02, 02:42 PM
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WTB S5 N/A FC

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Yet Another NOS Question!

I am considering running the NOS kit #05123 instead of going turbo. It is a 55-75 shot of wet n2o. Summit says I will need no fuel upgrades, but how safe would this be to use? I have a 91 n/a w/ stock fuel system and 99,xxx miles on the original engine. Any suggestions? And yes, I will get my electrical bug fixed before I even THINK of adding NOS!
Old 01-24-02, 02:46 PM
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you need to upgrade your fuel pump
Old 01-24-02, 03:01 PM
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WTB S5 N/A FC

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Walbro or TII fuel pump?
Old 01-24-02, 03:03 PM
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WTB S5 N/A FC

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...and would a S-AFC be a good idea as well?
Old 01-25-02, 03:04 PM
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pump what pump?

'89 vert, 112,000 mile NOS installed week ago, no upgrade and runs like a bat out of H@#%
Old 01-25-02, 03:12 PM
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Re: pump what pump?

Originally posted by thomasmeisch
'89 vert, 112,000 mile NOS installed week ago, no upgrade and runs like a bat out of H@#%
Get back to us when you need a reputable engine reuilder...

At the least I would get an RPM-based RRFPR... but an S-AFC, a bigger fuel pump, and some dyno tuning would be best. Oh, and I wouldn't go with more than a 50-shot, due to the N/As' high compression ratio and small ports - any higher and it's getting near the edge.

Brandon
Old 01-25-02, 04:51 PM
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75

My RX mechanic recommended 60, found '89-91 model years work great at that shot with no upgrades. But hey what every make YOU feel safe
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