1978 280z Engine Rebuild project

[txvepr]

Hey thanks for the comparisons. Mine is the Z version, just a little different angle . Nothing the grinder couldn't fix!  Pan is on now.

 

[txvepr]

Few more pics.

Edited January 28, 2017 by txvepr

[txvepr]

Got it painted!

[siteunseen]

That looks really good. 

Your initial start-up will make some smoke from the new paint, it scared me pretty good when I first fired mine, so be ready for that.

[FunkytownZ]

On 1/30/2017 at 10:10 PM, txvepr said:

Got it painted!

fellow Texan here with a 280Z - enjoying your build and cant wait to hear about it firin up!

what'd you coat your headers with? i like that look

Edited February 3, 2017 by FunkytownZ

[txvepr]

I used that VHT Flame Proof paint in 'Aluminum'.  Baked it on the grill for a while so it should be cured up fairly good.

[txvepr]

Out with the old.

Up, Up, and Away!!

 

Of course, I like to dump all the old oil out on the garage floor, just to make sure its all out of there , of course.... 

(I used a rubber oil plug due to stripped threads on oil pan. , Just don't get it caught on the sled you put it on.)

Old and New.

Edited April 8, 2017 by txvepr

[txvepr]

So to re-cap, I am at 500 plus miles of breakin. I did a compression check last weekend and was a little worried. My pressure was showing 95psi on all cylinders.

This was giving me a fright. I was worrying about if I had done something wrong, used the wrong rings, etc.....but it was driving fine.

Then I read a short post of someone else having low compression with a build, and someone just threw out there to use the short connector on their pressure gauge.  I had been using the handy long hose that came with mine too. So watch out for Harbor Freight pressure gauge with the hose attachment...

So tonight I used the short metal tube, and sure enough, it shows 150 psi on all cylinders! Woot!!

So I can now sleep at night.  Oil change next.

 

Cleanest Head in the County!

Edited April 8, 2017 by txvepr

[sweatybetty]

compression also depends on what camshaft you have. i have a long duration cam, and am only getting about 105lbs on a check, and am running about 9.8-1 compression, but all cylinders are even.

here is a good link  http://www.badasscars.com/index.cfm/page/ptype=product/product_id=68/category_id=13/mode=prod/prd68.htm

[txvepr]

Question, with the headers, I have noticed after medium to heavy acceleration,  and then getting off the gas, that I hear small 'backfiring' ,popping?

Is this an indication of a too rich condition, or normal when going from stock exhaust manifold, ? 

Maybe this was happening but not heard due to the stock manifold ?

Thanks.

 

[siteunseen]

My '77 does it with EFI.  '72 with carbs doesn't.  Both have the 6 to1 header with 2.5" exhaust.

Something fun to do (for me) is lower gear drag down the backside of a mountain, it sounds like a shooting range.