I have been doing some searching but not finding anything specific to my current situation.

I'm replacing the L2.4 engine in the '72 240 I bought last summer from my friend. He had installed a 4 barrel carb intake with a carb that was too large (600CFM) and it got stuck open and over reved the engine causing major internal damage.

So... I picked up a '75 280z engine with the fuel injection intake on it. I want to pull of the FI and install SU carbs (after reading opinions here on the site).

I now have 3 different pairs of SU carbs and intakes (don't ask). They all seem to have different intake headers and spacing and I'm sure they all will need a little TLC so I intend to get a rebuild kit from Z-Therapy but I only want to deal with rebuilding one set.

Can anyone tell me the best set of carbs out of the batch I have to rebuild and install on the 280z engine I have based on the pictures attached?

The intakes say E46, N33, N36 on them but as far as I can tell they are all "round top" style SUs.

I intend to strip off as much of the emissions stuff to simplify things since my car is CARB exempt and I live in CA so cold weather starts aren't too much of an issue.

So, dose this mean that you have that 4 barrel intake for sale or trade?

Hey Bruce,

I'm working on a set of 3-screw wide tab (bulky adjuster nut) and the needles were a little wobly (bent). I went to swap them out for some narrow tab 3-screw needles and noticed they are different sizes. I searched everything in ZTherapy but couldn't find anything on the subject. Is this common??

I think (if memory serves) the wide tab needles were longer than the narrow set. common?

Also, What SU's did the Solid Brass dipsticks come from. Roadster? Picture below show the current progress of my current build.

Sorry to hijack the thread but it is SU related.

Dave.

Also, What SU's did the Solid Brass dipsticks come from. Roadster?

I've heard Roadsters, and possibly some VERY early Zs as well.

No brass on my roadster, but they were swapped for some new is 1980 according to the info i have.

It would have been nice to have, looks good.

Chris

Hey Bruce,

I'm working on a set of 3-screw wide tab (bulky adjuster nut) and the needles were a little wobly (bent). I went to swap them out for some narrow tab 3-screw needles and noticed they are different sizes. I searched everything in ZTherapy but couldn't find anything on the subject. Is this common??

I think (if memory serves) the wide tab needles were longer than the narrow set. common?

Also, What SU's did the Solid Brass dipsticks come from. Roadster? Picture below show the current progress of my current build.

Sorry to hijack the thread but it is SU related.

Dave.

Dave,

Who knows what somebody might have stuck in there for needles. 2 liter roadster needles were shorter than Z needles. Worked for riching the carbs up top.

Early Z cars had the brass knobs as did all the SU SU's.

So, dose this mean that you have that 4 barrel intake for sale or trade?

Yes, I plan to put the 4 barrel intake up for sale soon.

Well I finally finished the set for my 240Z. I have triples at the moment but they are so out of whack that I'd prefer the SU's over the Webers, just for tunability. I know my MPH will be better and these will look better until my 3 liter is done being built.

I wet-sanded everything with 400 then 600 grit SP. Then went thru 2) 6" spiral sewn pads. I also tried to polish as much steel as possible. You'll notice, if you look close enough, that I replaced all the screws and bolts with Allen head screws in chrome and stainless steel. I just need to find a Hi RPM idle adjustment plate and pushball for the throttle attachment on the Ballance tube and then they go on. Can't wait.

Dave.

Edited April 9, 200915 yr by Zs-ondabrain

That looks beautiful....hurry up and trade me for my crappy red powdercoated junk!

Dave, its time for you to get a new user name "Mr BLING BLING"

Chris

Edited April 9, 200915 yr by ChrisZ

Well the wife calls me " MR. DING DING" Does that count?

I just got in from installing them. Here's the shots. Just ignore the Choke cables, they were modified to work with my triple webers, now I need another set to replace these ones.

Dave.

Early Z cars had the brass knobs as did all the SU SU's.

Is that really true? None of the four 1969 production cars I have came with brass knobs (oil filler caps) on the carbs, and they all have the correct 1969 carbs (with no drain on the float bowls and the "mickey mouse ear" tops). Even HLS30-00032 doesn't have brass oil filler knobs and there aren't too many earlier than that. I don't recall any of Jim Frederick's cars with brass knobs either.

-Mike

And that was the direction of my question in the first place. I don't know where I got these ones but they work fine so I ain't bitchin. Would be nice to find another set though.

Hey Bruce, What is an SU SU? Roadster?