Walbro 450

[EVOCPE]

Nope, Benny just tuned an EVO X with a single Walbro 416 E85 on 34psi and made 380kw, just upgrade your feed line to a minimum 6AN and you'll be right (stock EVO X feed is 6an)

Its all comes down to boost pressure, base pressure, pressure drop across pump housing, voltage at pump, line size

 

[evo-gsr]

I just reading on dsm tuners that these 450 walbro are running out of puff at 28psi boost level. Something to keep your eyes on.

Im running more than 28 on mine with no dramas.

 

[4piknup]

Sweet

 

[EVO-00X]

I just reading on dsm tuners that these 450 walbro are running out of puff at 28psi boost level. Something to keep your eyes on.

What injector size Jack?
I had 28psi with 1250cc injectors on 98 pump and had no fuelling issues. That's with OEM GVR4 base fuel pressure too which is lower than EVO.
There's a lot of nay-sayers out there but Im waiting to see how the single intank Walbro 416/450 performs on E85 and 1400cc injectors with my upgraded fuel lines.
If I need to upgrade to a surge tank setup then I will, but let's find out first

 

[4piknup]

Injector size wont matter. 80% of 1400s is the same as 50% on 2200s. (Or whatever the calculation is)
I will try find it again.
But it was e85 at 28psi.....hang on.

 

[evo-gsr]

Im using mine with Ethanol at 30 psi.

 

[4piknup]

Cant find it. Must be bull.

Maybe you are using 'poofteenths' or 'pipsqueaks' per square inch, jamo....

Na, sorry guys. Forget I said anything.

 

[evo-gsr]

No Jack...we arent talking about whats in your pants here. Sorry.

 

[EVO-00X]

30psi on E85 has got to be good for close to 500hp atw so that's gotta be the happy stuff right there on a street car :thumbsup:

 

[khubner1]

500hp is as the car builder from the fast and the furios series is the perfect number it's enough to do most of what you could ever want.

(short of fully fledged race cars that is)