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Mugabetown - Whoretownin' At It's Worst.


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Nismo fuel pumps are only 275lph or something silly. Sure they bolt in but thats about it. 450lph walbro pump will also cost ~150 bucks less IIRC. If the R33gtst fuel pump mount setup is similar to the R32gtst it's a peice of piss to modify it to fit, though getting to the tank may be harder due to 33's being less likely to combust in a rear end accident.

You could probably easily go smaller injectors (720cc?) and shave off a hundred bucks. Also make sure you buy side feed injectors to suite your fuel rail, with the right size holes etc.

Really need a FPR? Making 300kw's here without one, but maybe there's different stuff on the GTR fuel system?

I wouldn't double the tuning, maybe add only 50%, for flex. You're basically getting two tunes in there. That's assuming you have no issues however, which can quickly add up unfortunately. I mean, best case, just a 98 tune, 500 bucks maybe. Worst case, things to wrong, flex tune, 2000 bucks isn't out of the question, so be ware.

you're also just missing little stuff. Turbo gaskets, new studs, fittings for Ethanol sensor and the like can add up to a few hundred bucks

You'll need to figure out how you're going to get the car to the tuner aswell, Everything you need to do is easy enough to DIY at home (and... satisfying to do, i'd recommend it), but with bigger injectors the car will be undrivable unless you can get the tune adjusted for the injectors. Not sure how easy haltec is to modify

Not compatible? So Walbro over Bosch 040?

If you say so. You've done it recently.

yeah, the Walbro pump is E85 ready and as Pete said flows more than nismo pumps.

It can be fitted in tank too (just like mine)

Yeah, budget for at minimum 2k in tuning costs with eflex

R33 fuel tank is completely different to R32, just FYI.

Not sure how simple it is to mount a walbro/040 in tank in an R33

well as long is its not mounted to the tank floor it'd be easy enough :woot:

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  • Latest Posts

    • Ok guys thank you very much. GCG highflow it is then 🙂 
    • forgot to mention that when it does this it does not kill the engine, but I have not kept the pedal down long enough to let it, as I see no reason to beat up on it as its got to be something simple, small and dumb causing this.  And as soon as I let off pedal, the engine returns to its normal super smooth operation and rpms re-stabilize quickly, once below 4k. 
    • neither stumble or cut really seem to be an appropriate term....hard to explain its like a rev limiter but at 4k, but it violently shakes engine and entire vehicle as the rpms will not rise over 4k, even with slow acceleration. as soon as it hits 4k, it sounds like entire spark is lost entirely. plugs were 1.1 which I used as such, but later put in new plugs gapped down to .8 changed back after issue arose when I replaced the coils, still does it with either plug gap...damn and it was all running so good.
    • Oh how times have changed! I actually lean it out relative to my water/methanol injector duty cycle. The methanol adds a lot of fueling and you can then lean it out even more due to reduced knock. 
    • Yeah my thoughts are the same, a well thought out WMI setup, would be slightly ahead of just straight E85 and you're also chemically intercooling the charged air, dropping it even further. This is why you need to add so much more fuel as soon as you spray. I remember someone taking me through their set up before (Dennis, has a R33, lives around Cabramatta - no idea if he's still around on this forum). He would target AFR 10:1 on 98, then as WMI ramped on, AFR would lean back up to 11:1. Amazingly, he did this all through his PowerFC, a relay to cut power to his EBC solenoid if there was not enough line pressure on his WMI kit. And of course, if there wasn't any boost made above gate pressure, you wouldn't be accessing the load cells with heaps of timing for WMI. One downside to that rudimentary setup, once the WMI came on, the EBC would unleash the dragon, and of course all the timing. Tyres would fry lol.
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