tioklou

ok but does a new one with it's butterflies open and close tightly is better for tuning and economy? just a question?

the new weber is DMTL 32/34! thanks again!

Hello! maybe a similar topic has already being written but i want your opinion about the best fuel economy! i have a 4k-u engine with a weber 32/32 dgv! i want to ask you what kind of carb to use for economy! the stock one 28/32 or another brand new weber 32/34 that i have? i am thinking of the weber because it's new!!! what do you think? thanks alot!!!

of course if you have a 4k-u twin squish head you could put it on your 5k without any mods...the cr will be ok...

my engine had a sticker on the valve cover which tells you to use only long spark plugs and not the typical ones just like those in the picture...the other one had fallen off...

there are two types of 4k dished pistons.. the first one is just like those in my engine.. my engine is a 4k-II twin squish with electronic ignition. the second type is with valve holes just like 5k ones...

no,4k and 5k have the same ports. 4k-u(dished piston) and 5k(dished piston) have the same head, 27mm intake ports.. and same valves also...

you are right Trev... :-) but i have another question.. does piston size affects reving? 4k and 5k have the same stroke but different bore...

i agree with you...5k has more torque because of his capacity but i have heard that a 4k engine can rev more because of his 75X73 bore and stroke.. it's a "square" engine...

In my opinion the std carb is the restriction point on old man's engine.with a weber dgv it is very possible to be much closer....

5k of course... :-)

you can do two things for this.... 1)first of all to use a second breath filter 2)to do what i did...i keep the original carb plate in it's place(connect the pipe of the valve cover) and above that put the weber adapter plate..i use larger studs. i also opened the original carby plate to oval shape as the weber adapter plate..the same thing i did and to my inlet manifold for better breath of the weber.

maybe the other hose that you T it is for the economy gauge..ke70 i see that have this...mine is ke30...

good job mate..only check if with pedal down opens and the second butterfly to it's end... I got the pcv breather from a car parts store in Greece (the country i am from)..."the other hose thats ment to go into the carby?" you mean the hose that hold i in your hand and you T it? i don't know but i would block it and use only one hose from the distributor to weber... And about the whistling noise...i think is the weber sound...i hear the same sound.... :-)

remove this bolt that holds this bracket(red arrow) and you will see 2 holes in this place you will screw the iron plate... in my car down of the carby adapter plate i keep the stock carby plate,in order to connect the pipe(blue arrow)...the stock plate also protects the carby bole from temperature...