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Zetec, carbs or EFI
Hammy360 - 14/12/10 at 12:17 PM

I,m in the really early stages and still planning a lot of the project, my question is should I be looking to have my Zetec EFI or carbs? If carbs what sort of money am I looking at for the carb set up (without engine) ?

mcerd1 - 14/12/10 at 12:27 PM

EFI is a bit better all round performance/econnomy wise, but carbs are significantly cheaper

if it needs a cat to pass emissions that really means it needs to be EFI
will you need to get it through an IVA test ?
what age is your engine ? (pre Aug. 95 ?)


bike carbs (ZX9R / R1 or similar) = what ever you can get them for say ~£50+
DIY manifold = £ ? (I got a bogg bros one - very shinny but not very locost )
megajolt (for sparks) = $145 (us dollars)
bike fuel pump to suit carbs = ~£20


I'll let someone else cost out the EFI (I went for carbs on my pinto)


[Edited on 14/12/2010 by mcerd1]

rusty nuts - 14/12/10 at 07:37 PM

A well st up EFI system is so much better than carbs, peak power may be the same but carbs lose out on driveability

big_wasa - 14/12/10 at 07:38 PM

efi

austin man - 14/12/10 at 07:55 PM

carbs they just sound sooooo good

Hammy360 - 15/12/10 at 07:39 AM

cheers, thanks for all the help

Hammy360 - 15/12/10 at 07:43 AM

When I source my engine should I be looking to get the ECU at the same time from the same vehicle?

mcerd1 - 15/12/10 at 09:04 AM

quote:
Originally posted by Hammy360
When I source my engine should I be looking to get the ECU at the same time from the same vehicle?

some folk have used the donor's ECU, but this isn't always as strait forward as you'd think (depends on the donor) - some ECU's need 'tricked' into thinking they are still in the donor car
and you can't easily re-tune them to deal with the changes you'll need to make to the exhaust / intake...

so most folk seem to end up with an aftermarket ECU or some kind (megasquirt, omex, emerald........) and often with indavidual throttle bodies to get the most out of the engine (bike TB's are an option)

of course if you can find a pre-August 95 engine then you shouldn't need a cat for the IVA test

[Edited on 15/12/2010 by mcerd1]