Board logo

converting old car to injection
Mr Whippy - 14/6/17 at 12:02 PM

Hi,

Now in tinkering mode these days, I was wondering for the MOT, if I converted old 80's petrol landy to fuel injection using mega squirt...

is it still going to be tested as if it was a carb based engine? so don't need a CAT or have now meet more stringent targets???

only thinking of doing it to reduce my fuel bill (very high) and increase the power (very low)

Another option maybe to convert to LP which I think in the long run be much cheaper but not really increase the power, though was wondering if a mega squirt could handle switching over to LP injectors??!

Any idea's?

spiderman - 14/6/17 at 12:26 PM

pre 1997 I believe is the date for non emissions testing, just a visible smoke test. Putting EFI on the LR will make emissions better. So no cat required.
Good luck with the conversion.

spiderman - 14/6/17 at 12:35 PM

you could even put a modern injected engine in, might be cheaper than converting to EFI, and remove the cat as the test is on the age of the vehicle and not the engine, or it was last time I checked.

gremlin1234 - 14/6/17 at 12:42 PM

quote:
Originally posted by spiderman
pre 1997 I believe is the date for non emissions testing, just a visible smoke test. Putting EFI on the LR will make emissions better. So no cat required.
Good luck with the conversion.

its pre aug 1975 for visual test
then 4.5% co and .12% hc (till aug 86)
and 3.5% co and .12% hc (till aug 92)
and 3.5% co and .12% hc (till aug 95) (and not listed in the 'annex' )
and progressively tighter since...

ref:
in-service-exhaust-emission-standards-for-road-vehicles-18th-edition.pdf

edits, link wasn't working, and corrected dates


[Edited on 14/6/17 by gremlin1234]

Mr Whippy - 14/6/17 at 02:01 PM

cheers. Not wanting to change the engine, it's in superb condition and suits the car perfectly, just looking at an alternative to fitting an SU carb which would probably drink even more fuel

Jenko - 14/6/17 at 02:35 PM

Just FYI....I converted my old Westfield from twin 40's to Fuel injection....33% saving on fuel.

stevebubs - 14/6/17 at 04:32 PM

Emissions test won't change if you go to EFI from Carbs

snapper - 14/6/17 at 06:51 PM

Once a car is registered and a V5 issued the emissions are fixed so any modern engine would only need to comply with the emissions of the original engine fitted when it was built
Happy days

SJ - 15/6/17 at 06:55 AM

I'm not convinced you will see a worthwhile saving. Unless the SU is knackered I can't see EFI being much more economical.

r1_pete - 15/6/17 at 10:10 AM

I converted my E Type to efi, best move I made with it, much more drivable, improved economy but an E is never going to be 'economical', I did ignition too with megasquirt.

No issues at MOT, tested exactly the same as it was on carbs.

[Edited on 15/6/17 by r1_pete]

Ugg10 - 15/6/17 at 11:26 AM

Stick on some bike carbs as a first step will give you better miles and better throttle response. You could also convert to NoDiz whilst you were at it. Easy halfway house.

[Edited on 15/6/17 by Ugg10]