Fuel system help - Mercedes Benz SLK Forum

Performance MODS for the R170 Tuning and Performance modifications for your SLK

 
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#1 Old 09-27-2014
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Fuel system help

So I've got an Evosport pulley, and now I have a full 3.0" dual intake (think NeedsWings, but about half the cost. )

My next move is a tune, but I'm worried about leaning out.

Regarding my fuel system, what should I do?

Eurocharged said that injectors are my best bet to avoid going lean at the top end. The Crossfire boards seem to suggest that the fuel pump is the limiting factor, and that I should do that first.

Hence I'm getting a third opinion. :P What's next?

(If you need more data I can provide fuel trims, but I can't read AFRs...)

Thanks in advance!
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#2 Old 09-28-2014
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You might want to,invest In an AFR gauge, Innovate sells theirs for around $200. check into a Kenne-Bell BAP(Boost a Pump) You'll find info on their website. Simply, it increases voltage to,the STOCK fuel,pump and is usually boost related, 1psi of additional fuel pressure for each pound of boost. I don't have their website but just google them. Sorry for,the type,,themipad is dying. mark
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#3 Old 09-28-2014
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If I'm going to pay 200 for fuel mods though, an SL55 fuel pump would be about the same price and doesn't seem as ... risky as a clip-on screw-with-voltage mod.
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