Out with the 340 & in with the 410 stroker!

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1wild&crazyguy said:
Right now it's just 3000lb ss springs, pinion snubber, 3 way drag shocks, and wimpy 235-60-14 tires

The drive is straight inline with the pinion, so I'll be putting it nose down 2* to 4*
Click to expand...

Nothing else, put it down at least 5* maybe more

2-5 is cal track territory. SS springs I've seen as much as 10*
 
1wild&crazyguy said:
really?

do you unsnap the lil claps too?

when I got mine they were unsnaped.

I figure 5-6* then a shim can take it back or forth enough.

what do you think?
Click to expand...

Yeah 5* would be a good start, then you can shim it if it needs more

And clamp the shyite put of the front segments. Loosen up the ones on teh rear or remove all together.
 
Checked plugs, the porcelain is white with a nice brown ring down at the bottom, timing shadows are right at the bend on both sides of it, excellent.

Still gonna lean it out on the primary till I get just a lil surge and then step it up.
 
1wild&crazyguy said:
Checked plugs, the porcelain is white with a nice brown ring down at the bottom, timing shadows are right at the bend on both sides of it, excellent.

Still gonna lean it out on the primary till I get just a lil surge and then step it up.
Click to expand...

Jets are 72's so far and going 71's next test, that should put it in the middle.
 
I have no idea how I missed this, but I am glad I found it. 8)

Any timeframe on when you will have her all back together and taking her down the 1/4 mile? Will you be ready when the track opens?
 
Yep,im looking forward to when you hit the strip too!
 
340 Dart said:
I have no idea how I missed this, but I am glad I found it. 8)

Any timeframe on when you will have her all back together and taking her down the 1/4 mile? Will you be ready when the track opens?
Click to expand...

Well hopefully I'll get to doing the cut 'n' roll to fix the pinion angle and aside from painting it, it's good to go for now till I get 1 3/4 headers and a 850-950cfm carb and M1 single plane intake THEN it'll be 'real nice'..

as for now it's just surprisingly fast.
 
Holley 950HP, victor340/M1 and some better headers and it will be VERY different.

I was impressed with the way this car, as is, ran last weekend. Neat car.
 
Mad Dart said:
Hey Justin, what gears are in it???
Click to expand...

I believe gear ratios are based on a 25'' tires.
3.73 , tire are 235-60-14=25.10=3.72


Some say they're based on factory sizes which would put me at 3.56 or 3.70 gear if going off the original 185-75-13=23.93 or 24.93 if going off 14'' tires.

If you have a 245-60-15=26.57 tire, you'll wanna run 3.91's to get a 3.68 gear at the ground.
Add 29'' slicks to that like me and the ratio is 3.23'ish which is why I'm building a set of 4.30's=3.72 maybe even 4.57's=3.96 at the ground.
 
1wild&crazyguy said:
I believe gear ratios are based on a 25'' tires.
3.73 , tire are 235-60-14=25.10=3.72


Some say they're based on factory sizes which would put me at 3.56 or 3.70 gear if going off the original 185-75-13=23.93 or 24.93 if going off 14'' tires.

If you have a 245-60-15=26.57 tire, you'll wanna run 3.91's to get a 3.68 gear at the ground.
Add 29'' slicks to that like me and the ratio is 3.23'ish which is why I'm building a set of 4.30's=3.72 maybe even 4.57's=3.96 at the ground.
Click to expand...

Is there a system to make sure what gears are in the rear, like spinning the tire 1 revolution and counting how many times the shaft spins?? Can you explain that? I think I remember doing that when I first got the car and ended up with 3.50 which would clarify your calculations with a 25" Tall Tire making mine a 3.55?
 
1wild&crazyguy said:
just some pics
never mind they need resizing and I don't wanna mess with it right now...
Click to expand...

here's one that fit..

20549_1085722799005_1704474018_152914_599957_n.jpg
 
This is more in order, I should done this on the 1st page but I'm not into taking/posting pictures as I am into building things.

1st pic show the strength difference between 318 and 340/360 main caps, 318 on left/340 on right.
2nd pic is on my back porch doing final assembly of the bottom end.
3rd is mock up/checking for clearance.
4th shows the head type of the piston 'KB hyper'
The rest are some of the lower cylinder clearance necessary to fit the h beam rods and pics of the final with cam installed, and last ..the milodon pan k member clearanceing.

Photo 1.jpg


20549_1085722799005_1704474018_152914_599957_n.jpg


Photo 104.jpg


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Photo 289.jpg


Photo 359.jpg


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Photo 373.jpg
 
So the motor came back apart after doing a leak down test and finding 22-24% leak through the int/exhaust valves.....Already posted this, I know...
It turned out the ferrea valves were not round out of the package, live and learn, they all get ground from here out.

So while the heads are off I've been cc'ing them and found the following...

Intake ports measure
Stock J-155cc
My modified J-184cc

chambers are 62-62.5cc , keep in mind these particular heads started out @69/66cc's- they had seats installed on the intake side and how ever much milling ? who knows..
I have removed .040 from 1 head and .020 from the other already, now another .0096 & .0144
I will mill them down to 60cc and call it good.
This should yield around 10.1 on the nose.

I have yet to measure the modified exhaust ports, but will post'em later.


I am gonna get some clay and cc the plenum of this old weiand single plane#7510 too
 
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