If you guys were me, a relative newbie to engine work but willing to learn, what would you replace the nikki carb with? In other words, what is the easiest bolt-on-ready-to-go-from-the-box-already-tuned-for-a-rotary carb setup. Are instructions on tweaking & installation for sevens included with the kit?

 

I have Racing Beats Holley kit on mine. U can also check out Mazdatrix.

 

LOL, don't we all wish!

What works for me - ask my local Mazda carb guru what I need, buy the parts, and then beg him to tune the carb. It's not exactly macho, but my car runs really nice now.

 

sadly, there is virtually no such thing. i mean, yeah, the carbs you buy for rotaries come with some mods that allow them to work, but chances are, unless you're REALLY lucky, you're not going to be able to buy a carb and just slap it on and drive without paying some tuning dues.

as for which carb, i can only speak from what i've used, but there are many other choices out there. however, i don't think there is really a wrong choice to be made for street driving. i've used Holley and i have a Dell'Orto now. both are good, but i like the "feeling" of the Holley the best, even though the Dell'Orto makes more power. i guess, i just got used to feeling the "kick" when those secondaries open on the Nikki.

installations are usually straightforward. if you can walk, breathe and chew gum all at the same time, you should be able to install any intake you buy with no trouble. however, tuning will take either lots of patience or an experienced rotary mechanic.

hope this helps.

 

Probably a Holley, but any carb you get will have to be specially tuned for YOUR engine. You'll also need to replace the fuel pump and possibly some other things. Then you have to mess with the emissions stuff......

 

I've said it before and I'll say it again... IDA Weber. The power is awesome and the tunability and ease of adjustment is second to none. Not that I'm biased or anything...

 

whatever happened to yaw?

 

Problem is, when used IDA's go for 2-3x the price of used anything else, it's hard to justify, at least if you're talking about stockport 12A's where the power difference between most of the carbs will be fairly minimal.

He has become so busy he is almost impossible to get ahold of, let alone get him to rebuild your carb. However, there are occasionally used ones kicking around if you're willing to do some looking.

For my $300, I'm sold on the RB Dellorto, but I am biased as well...

 

Yeah, you're right. It's just that I rarely see any other type of carb on a rotary over here.

Just on the price of used IDA's though, it should be dropping quite a bit once Weber brings the IDA back out. The new ones should be available by the end of the year for about $2000 AUD.