Duffy's 1/71 Series 1 240z build

[duffymahoney]

Data is back! She flows pretty darn well. 

[duffymahoney]

So smooth 

[grannyknot]

Beautiful job on those runners, that's going to be the E31 everyone dreams about.

[duffymahoney]

Here is my flow testing data

Datsun Flow Testing Data.xlsx

 

Duffys E31 Flow Testing	63" Static				15" Static
63 Degree Shop	45 Intake Valves				36.5Exhaust Valves
DSI Big Valves	LIFT	Manometer	CFM		LIFT	Manometer	CFM
Porting By Andrew Kazanis of Mad Greek	0.05	50	35		0.05	14	35
Date: 2/22/2020	0.1	45.25	60		0.1	13	55
	0.15	41.75	90		0.15	12.1	80
	0.2	36.5	125		0.2	11.5	95
	0.25	33	140		0.25	11	115
	0.3	31	160		0.3	10.7	125
	0.35	27	190		0.35	10.5	130
	0.4	23	220		0.4	10.3	135
	0.45	21.5	235		0.45	10.1	145
	0.5	21	235		0.5	10.1	145
	0.55	21.2	230		0.55	10.1	145
	0.6	27	190		0.6	10	150

Edited February 23, 2020 by duffymahoney

[240260280]

[siteunseen]

Is that high temp Play-Doh?

 

 

 

 

 

 

 

 

 

[duffymahoney]

Starting cam mock up. I’m using the bonk .535 cam. 

[Patcon]

Is that your shop or someone else's?

[duffymahoney]

1 minute ago, Patcon said:

Is that your shop or someone else's?

Mad Greek Racing's shop.  

[Patcon]

21 minutes ago, duffymahoney said:

Mad Greek Racing's shop.  

Cool

Interesting shop, wood heater with some sort of shelf, cranks, blasting cabinet etc.

[duffymahoney]

1 minute ago, Patcon said:

Cool

Interesting shop, wood heater with some sort of shelf, cranks, blasting cabinet etc.

He is a Z enthusiast.  Plus a racer, plus a engine builder, plus hobby guy.  Super nice.  

[duffymahoney]

Diesel Stroker crank. Extra offset ground for toyota rods. I will have full details tomorrow. I had the work done at marine crank.