madkaw

I vote air box ! Sent from my iPhone using Classic Zcar Club mobile

I thought for the longest time that the design ( shape) was pretty much the only difference . Then I realized the amount of bypassed air was huge on some of them. I swear my triples idled better with I heavy by pass type valve vs the OEM. Sent from my iPhone using Classic Zcar Club mobile

I've been a Z car hoarder lately. I have 3 now and not enough parts to put them all together -so ...... Jerry, one of these days id love to see your projects. My wife works on the Richmond campus sometimes- I might drive her there if I could get some Z stuff in!!

Chipping away at it - aluminum chips that is. Blending seats and short side radius and cleaning up combustion chambers . Intakes definetly need a touch up. Larger casting stuff in the valleys .

I'm going a similar route but will have Rebello just prep block for assembly. I'll buy his kit that works for his prep and just do the assembly.

I think I'm running .040-44

Definitely think you will have a market for these. Very nice work Sent from my iPhone using Classic Zcar Club mobile

Damn- I'm excited that I am building something like this right now. A whopping 18x20 Sent from my iPhone using Classic Zcar Club mobile

Cliff , i cant imagine that it wouldn't work. The gasket would just cover the notches . id love to run LD, but it's a lot of work. Injectors and TB to mount. I finally broke down and bought a TIG , so I plan on using it . The LD intake has huge runners and long ones two. You would t think it but the they are twice as long as a N42 intake. So many ideas - so little time

I just bought my 2/71 from the junkyard for 300$ looks a hell of lot better than that- but was still a 300$ mess. Mine was definetly not complete

Round port to square exhaust is fine from what I've gathered . yes Charles - LD INTAKE!

Little update Haven't made much progress on the L28 part but have messed with the MN47 . After cutting on one for a while I think I found the port size that I am shooting for is 35mm(intake). It won't take much more than that without busting thru. That's a 4mm gain so I am pretty happy. I dropped the head off to a local machinist that has a flow bench and he is going to cut on it some more and do some flow testing. I left several chambers stock so we can do a direct comparison. I'm going with a 87mm and 89mm bore size. I figure most guys go over size when rebuilding. He is going to flow test with the 42mm intake and then the 44mm-again for direct comparison. The exhaust side is much easier , not a whole lot can be done. I gave the machinist some flow bench numbers I found from some L builders to shoot for. He was like -whoa- that's pretty good!! Since I have a plethora of these MN47 heads I am going to mount one on the L24 to get my FI conversion going. A gracious member here (Kenny Seo) basically gave me one of his that he had "beat" on pretty hard -including turbo charging. I dropped it off at the machinist to have pressure checked and cleaned to see if it was serviceable after it's 'Seo' life. The machinist returned to me cleaned up and said it was good to go!! The guides felt good and it was flat, "I'd run it"-he said. Since this head seems to like abuse I am going to port it and keep my other one stock to run on the L24. Confused yet- LOL- I know I am. So the stock valved MN47 will go on the L24 with a paper thin HG to try and get CR close to 11:1. I'll run the bigger port head on the L28. Had some fun swapping parts for some cool pics. Carbs are fun-but FI opens up a lot of options

That is both tires chirping by the way:) i have fun with this subject because I caught a lot of crap for doing all the work making duals . Everyone had an opinion but no hard data on what exhaust is better. To me, there's no comparison as far as sound , but that's my opinion and taste . I'd do it again

I'm just having fun guys. I don't care if it adds weight- it makes up for it in personality Sent from my iPhone using Classic Zcar Club mobile

But everybody says it doesn't make sense Sent from my iPhone using Classic Zcar Club mobile

Where was the poor fit ? Trans tunnel? Looks tight and maybe better suited for earlier models Sent from my iPhone using Classic Zcar Club mobile

I will add to 26th post that this panel was my fume issue. The hatch opening for this panel needs to be sealed off . Low pressure will pull air thru this panel and pull fumes thru the hatch latch assembly. Solved 90% of my issue. Verified or found this using a fog smoke test Sent from my iPhone using Classic Zcar Club mobile

Dual system is just a waste . All that extra weight and the extra noise . All the pages of data I've read show without question that single exhaust is the best for power . Sent from my iPhone using Classic Zcar Club mobile

The CAI is still available Sent from my iPhone using Classic Zcar Club mobile

Yes sir - they are gone Sent from my iPhone using Classic Zcar Club mobile

I'd like to have the front half of the system for my duals!!! Sent from my iPhone using Classic Zcar Club mobile

Fuel pump wiring is right there behind the stereo , just spice a toggle on one side of the circuit and hide it somewhere underneath where you can reach it. Added bonus is having a way of shutting off and on pump for troubleshooting reasons Sent from my iPhone using Classic Zcar Club mobile

Reminds me of a story of my first Z . Traveling across country with a fresh motor and it started acting up. Tore apart my SU's in a parking lot in 20 degree weather and FINALLY gave up and had it towed. Turned out it was a loose connection on the dizzy Felt like a fool. The garage owner was so impressed with my car , probably not my troubleshooting skills though- Good advice to stay methodical . Could be ignition/ electrical . Since you've never had it right- time to pull the dizzy and make sure your ignition to valve timing is correct. All that dizzy adjusting isn't going to help if it's a tooth off. Sent from my iPhone using Classic Zcar Club mobile

At least mine came from a car I owned and was driving - purred like a kitten Sent from my iPhone using Classic Zcar Club mobile

Offset grind it might fix that Sent from my iPhone using Classic Zcar Club mobile