Duffy's 1/71 Series 1 240z build

[conedodger]

I see Duffy’s point though. His car is a Series 1 that hid in his neighbors garage for 3 decades. He’s trying to maybe mimic stock?

[duffymahoney]

5 hours ago, conedodger said:

I see Duffy’s point though. His car is a Series 1 that hid in his neighbors garage for 3 decades. He’s trying to maybe mimic stock?

I can design the box to flow correctly, really this is just a fun project.  Lots of info about air needed for HP.  

 

I honestly like the looks and sound of raw stacks.  

[AK260]

I can design the box to flow correctly, really this is just a fun project.  Lots of info about air needed for HP.  
 
I honestly like the looks and sound of raw stacks.  

My apologies if my comment came across wrong in anyway, I do admire the engineering prowess that has gone into creating this beautiful box though! It does look pretty special.

So, are you running it without a filter hence the raw stacks comment?

[duffymahoney]

I have socks, stack filters etc...

 

most of the time I don’t use much. 

[duffymahoney]

Rebello pistons just got back from ceramic coating by Performance Coatings, Inc. No clue if it was a good idea or not. But we decided to give it a try. 

Ceramic on top, anti scuff on sides, thermal barrier on bottom.

The color is more of a bronze then the picture is showing.

[conedodger]

Dave told me when I asked about coating, “it’s a 10/10ths thing. You don’t need it for a street engine but you could if you wanted to.”

 

[duffymahoney]

2 hours ago, conedodger said:

Dave told me when I asked about coating, “it’s a 10/10ths thing. You don’t need it for a street engine but you could if you wanted to.”

 

Yeah, there are 100 little things you can do to the motor, each doesn't affect much, but added up they could.  Time will tell.  

[conedodger]

1 hour ago, duffymahoney said:

Yeah, there are 100 little things you can do to the motor, each doesn't affect much, but added up they could.  Time will tell.  

Oh, I'm not being critical. I decided not to but only because I reexamined my goals for the car. I've owned this car since 1980. I autocrossed the living $^!# out of it at first and actually made a name for myself with it. When I decided to have an engine built, it occurred to me that Rebello was between work and home. I worked at Stanford University Medical Center and lived by Lake Tahoe. The car has had its original motor and then an L28 that I built, and then the original L24 that I rebuilt. All good motors but I thought if I was going to have someone else build a motor, it should be one of the names. I could have let Dave go wild and I originally wanted to but then I thought I want this to be a stockish motor with some extra power that maintains some street manners so my wife wouldn't mind getting in it and going to an event or two. So I started paring down what I would do to get it to, let's say 7/10ths. 

I'm all for what you're doing. Its got to be right for you...

[duffymahoney]

18 hours ago, conedodger said:

Oh, I'm not being critical. I decided not to but only because I reexamined my goals for the car. I've owned this car since 1980. I autocrossed the living $^!# out of it at first and actually made a name for myself with it. When I decided to have an engine built, it occurred to me that Rebello was between work and home. I worked at Stanford University Medical Center and lived by Lake Tahoe. The car has had its original motor and then an L28 that I built, and then the original L24 that I rebuilt. All good motors but I thought if I was going to have someone else build a motor, it should be one of the names. I could have let Dave go wild and I originally wanted to but then I thought I want this to be a stockish motor with some extra power that maintains some street manners so my wife wouldn't mind getting in it and going to an event or two. So I started paring down what I would do to get it to, let's say 7/10ths. 

I'm all for what you're doing. Its got to be right for you...

This is my first motor build, I am having a little fun.  Rebello and my builder are friends. I have rebellos pistons, valve retainers and rods and bearings.  

[duffymahoney]

I finally got all my vintage SK throttle bodies from japan. I’m super happy with the casting and the overall design of them. The inner fit or choke they use is pretty interesting. Without its 47 tapered to 45mm. Oer actually still uses the same design, and I can buy different inner fits. The right 3 are 40mm throttle bodies. The left 4 are 45s. I believe it’s the same casting. But actually sleeved differently not machined. 

Luckily one has a D shaft end and my tps sensors all work on it. 

One of the vacuum accumulation block things even has either a map signal or a iac valve in it. Pretty darn cool for something so old. 

I really like that they look a little more Mikuni/ dcoe carb. The stacks are super beefy.

[duffymahoney]

Some L series piston porn for your Thursday viewing pleasure. 

Originally the ceramic coating had some issues. I reached out to the company eagle suggested and they fixed them for me. Much better coating job.

Contact IA coatings: https://www.facebook.com/iacoatings/

[duffymahoney]

My vintage SK throttle bodies look pretty darn amazing after vapor blasting. Casting quality is good, not as good as a Mikuni carb. They should look amazing on my 240z. These are late 70s or early 80s. Now time to re zinc all the parts and rebuild them!