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  1. #1
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    HIGH FLOW THROTTLE BODIES

    Dinan offers HIGH FLOW THROTTLE BODIES

    Are they worth the money? Ive heard the stock throttle bodies are a bottleneck.
    Click here to enlarge

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    Click here to enlarge Originally Posted by FR305 Click here to enlarge
    Dinan offers HIGH FLOW THROTTLE BODIES

    Are they worth the money? Ive heard the stock throttle bodies are a bottleneck.
    For which engine(s), the S65 and S85?

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    e92 M3 S65
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    no..........

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    im curious, do we know/think the stock TB is restrictive on the N54? If yes, maybe we should get one sent to a machine shop and have it ported..

    maybe not be worth it as of right now, but if/when HPF releases its manifold, might be a good combo, no?

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    Its not to restrictive at all.

    Already looked into this.

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    ahh, i figured you would be the one. What about manifold?

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    Manifold isn't restrictive either.

    I was going to pay JE to make an aluminum one, but they said it wasn't worth it. The HPF manifold is good because it allows secondary port injection. There is definetely a convenience factor there. But I don't think it was designed to increase HP.

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    Click here to enlarge

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    ^^ Thats very close to the angle that JE was going to spray the injectors initially. I hope they changed it...

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    HPF 335i intake manifold provides the ability to run an additional fuel rail / injectors / and 5 methanol nozzles.

    Unfor any pics of what JE is doing for you?
    Click here to enlarge

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    im sure HPF wil adjust as neccessary, as that pic is just a first-draft fab.

    I dont believe their goal was to maximize hp/tq, but maybe shift it. although a small increase, i would think, is probable/possible

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    A small shift might be 3 hp or less. Click here to enlarge

    But the stock manifold is very good for our cars. Very strong and has really good air flow. you can even tap directly in the manifold for additional injectors, and the manifold won't crack. The problem with that is the angle the fuel sprays into the valve. That is kind of tricky thing to solve.

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    yes, but moving our tq curve would be great, and worthwhile

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    Yea, but it won't be a huge change. This manifold is focused on ease of use. Pop in some injectors and meth and you are good to go.

    If you really want to shift the torque curve, you have to add ITR's. That is ridiculously expensive.

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    Guys who got the throttle bodies for the S85 or S65 were not really happy with the result for the cost. We are talking $2k+ to get them installed and calibrated correctly. The calibration is key with independent throttle bodies. Several dynos have shown little to no gains. With just a minimal bore increase you can't expect much especially since the throttle bodies are already flowing a good amount of air. It just isn't worth it for 3 whp or so unless you really are modding the motor seriously and this becomes a point of restriction.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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