dear god in heaven!
right, another one from your man in manchester.
i WAS getting a consistent 60 mpg on runs to and from manchester to surrey.
so at xmas i put in a new carb main jet in my hif44 (the old main jet was worn oval).
and ive now got a really good magnet in my distrubutottler that has the four magents at exactly 90 degress to each other.
so my mixture better and my sparkage is spot on.
65 mpg or more to surrey at easter!! i was shocked
i was using so littel petrols .
awesomes.
here is your recipe for fuel nirvana
1. potter aboot.
2. narrow dunlup eco tyres. im on 165s but will go to 155 s at next change.
3. make sure your carb is not worn
4. short cam - mines a kent 246 - well its a minispares wossname which is a kent 246
5. do the spark mods ive outlined elsewhere - you can ignite a weak mixture better
6. fit a HUGE pulley on your alternator - fart a round for days with alloy ones that are not meant for it
i did . now look a GTM is very sleek. so at 55mph its maybe using 3 horsepower. cut 0.3 of a horsepower by running your alternator with a huge pulley
thats 10 % . i know im right - dont care what you think.
750 watts is one horsepower
7. 3.2 or 31. final drive or lower
8. big pulley on the water pump - see point 6 above.
9. run your motor LEAN - how did i do that? basically the car must NOT run correctly until its fully warmed up.
so if your engine has not run for 7 miles and you CAN drive without the choke. its not lean enough.
10 . for some reason at pottering speeds (2000 to 2500 rpm) i can sort of tell that its really lean. thats the needle. its always been that way with my 1275. nice
11. if you run a thickish oil in the dashpot the fact that you are sort of lean at cruise DOESNT MATTER - it will sort of be ok on acceleration. im using 20 / 50 in the dashpot
12. do some aero mods - ive blanked off a lot of the front to force the air under and over
13. steal a huge plastic estate agents sign and fit it under the front subframe. smooth the air under the body. you need some flow for the radiator - its a balance
14. get the clear plastic covers for the front headlights
15. my huge ram pipe (6inches - no mini ever had a straight 6inch ram pipe) pokes into the boot and gives me huge torque low down so you can stay in a lower gear - sure i talked about it before
when i hit 65 mpg (got to dorking surrey via sutton from whalley range with more than half a tank left its more like 75 mpg but you wont believe that) i thought - junk the 1275 and get a 998 - and go for 80 mpg.
still debating that one as ive got the wide ratio box in the wings to make her accerate hard .
155 tyres and a 998cc engine - jesus christ! where will that go on one tank of fuel??
7.5 X 80 mpg = 600miles!
best wishes to you gtm daily drivers.
get those mods done - thats why you drive a kit car for gods sakes!