Carb size

[stonerosesmod]

Hi all,

Currently running a smallblock Mugello 200 with a JL3 and 26PHBH through a breathe sweet filter.Was thinking of going up to a 30mm PHBH but was wondering the pros and cons? Someone told me i will lose lower end power but gain more mid range?

[Knowledge]

You say "going up to a 30mm" but where are you starting from? What is the size and manufacturer of your current carb?

[MickYork]

... says it's a 26mm PHBH ?

If jetted correctly it will match low down grunt and give better all round performance......with a better top end at the cost of higher fuel economy...

[stonerosesmod]

Thats right,currently have a Dellorto 26phbh

[Rich Oswald]

... says it's a 26mm PHBH ?

If jetted correctly it will match low down grunt and give better all round performance......with a better top end at the cost of higher fuel economy...

I get better fuel economy with a 225 and a 30mm than a friend does with a 200 and a 26mm.

[hullygully]

dont mean his is jetted right tho' Rich

[Rich Oswald]

dont mean his is jetted right tho' Rich

Micky, I jetted it AND it's been on the dyno.

[stonerosesmod]

Got some money off Santa and boredom at home has made me purchase a 28mm Dellorto.Probably wont make any difference at all

[Rich Oswald]

Got some money off Santa and boredom at home has made me purchase a 28mm Dellorto.Probably wont make any difference at all

Haven't you had a 28mm on before?

Rich'

[stonerosesmod]

I did on a 186 but not a 200

[Wilson]

What was the 28 like on the 186,I'm thinking of trying a 30mm on mine with the taffspeed copy exhaust,at the moment I've got a 26 mm with remote filter ,

[stonerosesmod]

I didnt really notice a massive difference on the 186 to be honest,but maybe that way down to my jetting.If you get a 30mm you can try it and if you dont like it,sell it on and put the 26 back on?