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Re: [turbobike] carburation vs fuel injection

Bryan Goodwin (bgoodwin@iquest.net)
Tue, 20 Apr 1999 00:32:33 -0500

I must agree, these debates are quite interesting. Getting lots of [good] mail
is cool too!

sebastian wrote:

> -----Original Message-----
> From: Lorcan Parnell <lorcan@globalnet.co.uk>
> To: Christer Johansson <christer.johansson@mbox383.swipnet.se>
> Cc: turbobike@natvideo.com <turbobike@natvideo.com>
> Date: Monday, April 19, 1999 2:32 PM
> Subject: Re: [turbobike] carburation vs fuel injection
> come on guys you know terry used a little nitrous oxide to hit that
> number.Lets not make it seem like it was all efi turbo!!
> you guys make my afternoons with theses debates!! kepp up the good work!!
> n20boy
>
> >Hi Christer, I hope you are enjoying this as much as I am! hehe...
> >
> >
> >>To make full use of a EFI setup you would really need to know what You are
> >doing
> >and use all types of sensors, otherwise it will be more primitive than any
> >carb
> >setup.
> >and carbs aren't primitive? Only been around 100 years...
> >
> >>I know what a MAP sensor is ,I work with dynoing engines at a engine
> >research
> >center.
> >Then you should have kicked my ass on this discussion by now - I'm an
> >amateur!
> >
> >>Yes some sofisticated EFI“s can adjust for different flows but then You
> >would
> >need
> >a map sensor in every inlet rubber, on a carb setup the stronger signal
> will
> >just pull
> >more fuel in that carb, nothing of major concern but nevertheless.
> >
> >No, you could just adjust the fueling/ignition on each cylinder against a
> >brake dyno.
> >
> >>Yes Your van have EFI (to clear emission laws) but a Yamaha R1
> >(who makes 150hp/litre) doesent , understand My point?
> >
> >Yes, now I do.
> >
> >>You may be able to buy an ECU for £650 and injectors for £15 ,but I doubt
> >that John Doe can walk into an speed shop and get a nice EFI setup for that
> >amount.
> >
> >I AM that John Doe! No, I didn't walk into a speed shop, i just hunted
> >around.
> >
> >>Besides you need alot more than ECU and injectors, throttle bodies and a
> >box
> >full of
> >sensors ,wires ,not the cheapest stuff around. The carbs are already on the
> >bike
> >True, but you are coming back to cost, the one point I concede.
> >
> >>How fast do I wanna go? well the old setup easily made 200mph and the new
> >one
> >is more powerful. As I said in an earlier mail Mark Moisan out of texas
> made
> >429hp
> >...and Terry Kizer made 494 on his EFI ZX11...
> >
> >Cheers
> >
> >Lorcan
> >
> >
> >
> >
> >