!!FUEL INJECTED!! TRX450R Build

[laxman1306]

updates?

[rc41]

yes, interested to see how this turns out??

[mclerc07]

so no update on this?

[DnB_racing]

I have worked and programed plenty of FI and the more I work on them the more I LOVE MY CARBS!!! now if they want to make a FI 2 stroke then Im interested

there are already way too many restrictions from the factory on the current models I don't want any more

FI doesn't belong in the race world!!! leave it for sport and work quads...when im done building my 25 year old technology 2 stroke 363 sphinx I will gladly put it up against any new technology race quads...race quads and bikes are getting slower not faster.. but I guess if everyone is running the same new tech motors then it doesn't matter if they are slower cause everyone is going slower...let a 363 run against the 450"s instead of only allowing up to 310

and I know lap times are improving ...that has more to do with suspension designs then motor designs

2 strokes are not going away they are actually making a comeback and im sure the factory's will do everything they can prevent a fair race of cc against cc

more aftermarket companies are developing some very powerful cylinders, and once built the upkeep will be much less for a basic carbureted 2 stroke then a
FI restricted EPA C.A.R.B.requirement motor
the problem with the FI is its not going to be limitless a simple power commander isn't going to allow enough settings to be competitive with 25 year old technology
and not too many will have the correct information to do real mapping the epa will be sure not to allow the average guy to bypass all the clean air guidelines

what your doing is cool but Im sure not in a hurry for it to be the standard ... look what happened to the ltr, Suzuki left the 450 open for rider improvement and got shut down because of it

your designing your system to run!!! don't expect the same possibilities from a big name company,,,
don't take this the wrong way but I hope Honda never does what your doing... it wont be as good!

[DnB_racing]

Possibilities are unlimited with fuel injection

id bet that's what people who bought the LTR said....it will be limited by the EPA and C.A.R.B.(California air rescores board) or not allowed to be sold

[Rivet]

. Possibilities are unlimited with fuel injection

What does this mean? Unlimited power? An engine that runs on drain oil? Well, no.
I think it was just a reactionary comment when someone asked, "why?"

I have worked and programed plenty of FI and the more I work on them the more I LOVE MY CARBS!!! now if they want to make a FI 2 stroke then Im interested !

DnB, I'm curious if you've worked with the fully programmable ECUs with unrestricted settings where maps are made totally from scratch or the factory ones that allow you to adjust within the parameters that the engine is expected to work within?
FI in the sport atv world certainly needs to go through more evolution, or growing pains if you will.
The more pioneers or experimenters the better. I was thinking of the analogy of the hot rod diesel trucks nowadays. Almost everyone and their brother has one or knows someone who does. But back in the eighties when Chevy started putting them in pickups everyone cried " junk! I'll never own one of those."
And they were junk, to some extent, but even today the GM 6.5L diesel design of decades ago have a pretty good record after the pioneering type of guys have worked with them. But look at the diesels in the trucks today," the possibilities are unlimited. "(well,almost)
A FI two stroke, that would be cool. But regardless of two stroke or four, the carburetors of today truly can rival any FI for the reasons WE want. Power, throttle response, ride ability, familiarity/easy to service.
But manufacturers need to use it in order to comply with the ever tightening restrictions of the E.P.A. and C.A.R.B. Stuff like emissions during cold weather start up.
I'd really like to hear how his project turned out.

I know its not a 450 but I snapped a couple of pictures of my 400 while it was apart the other day.



A few more





And what goes better with fuel injection?









Wish I saw something like this before. 20 dollar fuel injection.
http://www.popularmechanics.com/cars...etors-15682450

[400cc]

any updates?

[JoePA]

He's having FI problems! Sorry I had to say it. I'll stick with carb any day of the week. FI is ok for the utility quads and Harleys but thats just me. Good luck with your machine and hope it works well for you.

[MtnEX]

This is absolutely a sin.... lol...

Honda guys should rejoice in the fact the ATV hasn't been changed to EFI.

Look... EFI is nice when it works, but it is not cheap to mod an EFI bike, and it's a nightmare when something goes wrong and it isn't easy or cheap to resolve.

I mean are you reading how great this is from owners of EFI bikes that have had them a while? Nope. Current ATV/Bike EFI is pretty much 80's technology.

Lobby for an updated frame or updates to the transmission, etc.... not EFI.

[SHIFTx450]

damn dude you're right over the mountain from me.

I wanna hear this turbo efi 400ex run!