Quote Originally Posted by ELSINORE View Post
Sir.
I would like to ask your jetting recommendation for a 12valve 1500 engine used in a corolla small body car..
and would you recommend using a 3k carb instead of a 4k carb..

Thank You!.
Dear Sir:

I really can't recommend any jetting till I see the original specs. Finding the correct jet sizes is a matter of extensive testing.

You've got to get the basics right 1st - float level, smooth idle and progression. Then you can play around with the main jetting.

I do recommend keeping the original mufflers and exhaust system intact.

Do you have any experience in overhauling carburetors? If not then I don't recommend you do it yourself.

Replace your air filter regularly every oil change, blow clean with air every weekend.

As to the carburetor type, both of them are AISAN carburetors. However the newer models have all sorts of anti-pollution equipment built in and tend to be very finicky to tune and run.

Simple is always better in my book - go for the simplest carburetor available - the early model 3K series.

Hope this helps.

Best Regards,

Dusky Lim