Re: H-I-J '76 Nova re-fit.
 

Rears showed up today.
https://i.imgur.com/YtzMwDk.jpg

Re: H-I-J '76 Nova re-fit.
 

Love those wheels!

Re: H-I-J '76 Nova re-fit.
 

Fancy! :D

Re: H-I-J '76 Nova re-fit.
 

Could you please ck the stroke from throw to throw and report back? When you get the crank back.

Re: H-I-J '76 Nova re-fit.
 

You want to know what the actual stroke is?

Re: H-I-J '76 Nova re-fit.
 

Looking back.. Didn't see this... The crank wouldn't clean up , so a new grind?
And why the piston pins, if I might ask?

Re: H-I-J '76 Nova re-fit.
 

If Mark did the crank, you chose the best!

Re: H-I-J '76 Nova re-fit.
 

I would like to know how consistent the stroke is from throw to throw. Thanks

Re: H-I-J '76 Nova re-fit.
 

The crank will clean up, just sent it out to check straightness. The piston pins were worn pretty bad, I don't have a picture but I can get one.

Re: H-I-J '76 Nova re-fit.
 

The crank was previously done by a place in Ohio, not changing the crank.

Re: H-I-J '76 Nova re-fit.
 

Pistons came back today, spirolox came in, still no word on the crank. Working on the heads a little and since I couldn't get the info the machinist needed for a hone finish he said he will call the "ring guy" tomorrow. Meanwhile our first divisional is this weekend and we ain't there.

Re: H-I-J '76 Nova re-fit.
 

Todd, no offense but you've got to stop "out tricking" yourself
or you're never going to be racing.

Re: H-I-J '76 Nova re-fit.
 

Finish with a 280 grit to size, 3-4 strokes with a 400 grit cleaning the stones at every hole.

Re: H-I-J '76 Nova re-fit.
 

None taken. So what would be an average argument against any changes I have made to get this back together and racing quicker?

Re: H-I-J '76 Nova re-fit.
 

He's looking for RA RPK, RVK #s. Or something like that.

Re: H-I-J '76 Nova re-fit.
 

Every time I've bought a used race car I've done the exact same thing as you have.......gone through the car..........and I've missed races, so I understand what your doing-and I do the same thing myself.

I think its possible and I could be wrong....but I think Billy might be saying you could have raced the car the way you bought it.

Re: H-I-J '76 Nova re-fit.
 

RA surface finish

Re: H-I-J '76 Nova re-fit.
 

Well in that case, Billy and my wife have at least one thing in common. :D:D:D

Re: H-I-J '76 Nova re-fit.
 

The work ethic your teaching your Daughter, no price can be put on that. People that race are not lazy.......

Re: H-I-J '76 Nova re-fit.
 

UPDATE! Well not much of an update 'cause I cant get the crank till Wednesday-ish. Anyhow, rings are here, block is honed, headbolt repaired, 1st set of rockers, springs, retainers and some misc stuff should all be here by Wednesday. 2nd set of rockers won't be here till next week. Probably can't see (groves) but here is a pic of a pin and a random head pic.
https://i.imgur.com/xFMnfPB.jpg
https://i.imgur.com/TChsxKD.jpg

Re: H-I-J '76 Nova re-fit.
 

Hold on-you can't put a picture of the head on the flow bench and not share the data? I'am very interested in this information.

Re: H-I-J '76 Nova re-fit.
 

I don't know much about it, the idea is to check the head, get a new set of castings and start to work the new set. All I heard was blah blah blah port volume blah blah turbulance @ .xxx lift blah blah blah.

Re: H-I-J '76 Nova re-fit.
 

Ok---but theres people on here that can tell you what you have, and the potential for power. This is one area you should be focused on, this is were your power is going to come from. A stocker ALWAYS responds to a increase in flow, its not a Pro Stock, its always comes down to flow through the intake tract on a stocker. Any comments Dissident?

Re: H-I-J '76 Nova re-fit.
 

He told me that there was 100% potential to increase airflow with the valve job. He also told me what maximum horsepower possibility would be at with the current port and flow. He also said given my current circumstance, we should leave them alone so we aren't chasing our tail tuning with no time in reserve. He said they flowed really well at the lift numbers we're utilizing.

Re: H-I-J '76 Nova re-fit.
 

Todd and Autumn,


Glad to see you're getting parts together to head back to either dyno or the racetrack.


FWIW - As I recall you have a 360ci engine so the following would apply. IF the displacement is different than that, different factors for the peak power calculation would be required.



Take the intake airflow number at peak valve lift and multiply that times the factor 2.08 (if the flow bench testing was at 28"H2O test pressure) and that will give you a Hp potential number for the engine. That flow number will decrease when the intake manifold is put into service, as the loss is unknown unless the guy tested it with the manifold in place and you have those numbers.



Next you can estimate the peak Hp RPM by multiplying the factor 29.444 times the airflow number used above. IF you were not using the square nose dwell type camshaft, that factor changes to 26.578


Hope that might be of use to you and others as well. IF not, you could easily add this to the blah blah blah comments. :D


Good luck anyway!;)



Regards,
HB2:)
Dissident

Re: H-I-J '76 Nova re-fit.
 

Thank you, this is great info!

Re: H-I-J '76 Nova re-fit.
 

So how do you determine the factors for different displacements?

Re: H-I-J '76 Nova re-fit.
 

Some guidelines for other displacements:


Est RPM @ Pk Pwr = (1196 / ci per cyl) x airflow at 28"H2O tst press:D


Use 1316 if you are using a square nose dwell camshaft.:rolleyes:


Rgds,
HB2:)
Dissident

Re: H-I-J '76 Nova re-fit.
 

Block is cleaned and back on a stand, piston pin bosses are honed. I'm going over tomorrow to hone the rod bushings and start filing rings. Hopefully most parts will be here tomorrow and I can pick up the crank Thursday morning.
I thought this thread was almost over but yet here we are. It's the build that won't die!

Re: H-I-J '76 Nova re-fit.
 

Got some pictures today. The L2L coated pistons, the bores, including the one spot that wouldn't clean up, honed pin bosses, honed small end of the rod and some ring file action.
https://i.imgur.com/FoTpffs.jpg
https://i.imgur.com/gau4lvU.jpg
https://i.imgur.com/92tZZ48.jpg
https://i.imgur.com/eMdXPsS.jpg
https://i.imgur.com/nwOk5Zj.jpg
https://i.imgur.com/Ehvp2BV.jpg
https://i.imgur.com/ngVAiyy.jpg
https://i.imgur.com/D8XiEOX.jpg
https://i.imgur.com/UubwTIA.jpg

Re: H-I-J '76 Nova re-fit.
 

Whats your piston to wall?

Re: H-I-J '76 Nova re-fit.
 

.003

Re: H-I-J '76 Nova re-fit.
 

I din't know that any of them ever quit..

Re: H-I-J '76 Nova re-fit.
 

Now, about that roasted pecan whiskey.....;) -Al

Re: H-I-J '76 Nova re-fit.
 

They don't, we just need a little racing thrown in the mix.

Re: H-I-J '76 Nova re-fit.
 

Does your ring grinder actually measure how much is coming off while you are grinding ?

Re: H-I-J '76 Nova re-fit.
 

That may be utilized today when the crankshaft doesn't show up. :D

Re: H-I-J '76 Nova re-fit.
 

Yes it does, it's very slick. I would cut it quick down to within about .002 and then slowly cut and fit from there. None of this equipment is mine, it's a buddy's shop. He lets me go in and help on my own stuff.

Re: H-I-J '76 Nova re-fit.
 

In California speed parts cause retardation at birth. Im in Florida, and speed parts caused me to become retarded as a teen. And BTW, first set of rockers are here.
https://i.imgur.com/QDMwZGs.jpg

Re: H-I-J '76 Nova re-fit.
 

Looks like a well equipped place.
He doesn't want his name out there? Not till after the dyno test? LOL