PZtuning and William Au-Yeung’s Record-Crushing RSX
Hybrid Racing fuel pressure regulator
A TI Automotive pump draws Ignite Ethanol Racing Fuel 114 from the factory Acura fuel tank (which has a Holley HydraMat installed) and directs it through a Hybrid Racing fuel pressure regulator. It then guides through the plumbing towards Evolved Injection 2200cc injectors sitting in a Hybrid Racing fuel rail.

 

Hybrid Racing 70mm throttle body
A Hybrid Racing K-series throttle body is also used to ultimately control the go.

This trick part deletes the complex and restrictive factory cruise control components, has integrated block offs for for the various sensors and solenoids (since you’ll be using aftermarket units) and even comes with a thermal insulating gasket.

 

Mishimoto radiator between intercooler and core support
A Mishimoto radiator helps keep the engine temps in check.

 

Vibrant Performance vertical-fin intercooler behind bumper support
While a Vibrant Performance intercooler is custom fitted and plumbed to cool the intake charge, sent where it needs to go by PZtuning fabricated intercooler piping.

16 comments

    1. Lol, that’s where those spacers are … now I remember, needed them for the ZE40’s (they’re actually 24 offset, and minus 3mm for the spacers, so 21 offset). We usually run 57FXX’s that are 22 offset (and no spacer)

  1. You guys did an excellent video + article on fixing the EP3’s steering issues. Did they do any similar work on this car? I imagine they had to.

    1. All we have in our steering rack is a custom rack slider (which we had made), otherwise its all oem steering gear in it.
      That being said I’m sure there’s room for improvement there in this car – we actually retired the RSX in 2014 and have been slowly bringing it back up to competitive form, so we’ll keep developing it as we can!

  2. Well, you’ve got a lot of development to do. Here’s some freebees.

    Honestly, I don’t know why I bother, but whatever…when I get back on track, it will make the competition interesting.

    First of all..

    Why do you have the stock radiator mounting core? this is a freebee. but if you have hood locks, you don’t need all that shit, cut it out…save some weight, i did it on my car.

    bumper support? worthless…drop 20 lbs, right there. another freebee.

    w
    Not the greatest cage…but, maybe your spring rates are not high enough?

    Factory crash bars? worthless 10 lbs.

    You got your spring rates all wrong, on on FWD, you run soft fronts, and stiff rears. Don’t need sway bars, for the rear, either. Run some neg camber, and some positive caster, and you’re golden on a Mac-Strut. Saves weight, too.

    If you had a ‘proper’ splitter you would be able to use those soft front spring rates to your advantage, because under brake dive you would get more grip. But, you need to have a front diffuser/splitter to do that. Which, obviously, you do not have, otherwise you would not have such a huge front splitter because you don’t need it because a front diffuser makes much more downforce, and far more efficiently. Look it up, on LMP1 cars.

    Wank, rear wing should be mounted to the rear frame rails. Period.

    Rear diffuser is beyond basic. For one, double decker. Secondly, lateral diffuser. Third, blown diffuser. If you know racing, you shouldn’t even have to look those terms up.

    Wank, lame side skirts. How about sliding skirts, FTW…maybe you can catch up to 1980’s F1 technology. Or are you that slow?

    Horrible front bumper design, you should have radiused inlets, obviously.

    1. You don’t need a double deck diffuser if you have enough room to make a large one. Also the golden rule of all things aero: you design to the rule set. Just because something is “the best” in one series of racing does not necessarily make it correct for another series.

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