How to port and polish high performance v8 heads,tips,tricks and trade secrets exposed
*******CHECK OUT PART 2 ***** http://www.youtube.com/watch?v=sZDlZxqRVJw
COMBUSTION CHAMBERS http://www.youtube.com/watch?v=D63jgJs95gY
DEGREE CAMSHAFTS http://www.youtube.com/watch?v=azLX1pi2oVE
I look at porting and polishing high performance heads,I been building engines for 30 years, most of that time in research and development,I explain in real simple terms air flows and velocities,these 308ci General Motors Holden heads have been transformed over 70 hours,I show you all the do's and dont's,keep a lookout for the rest of the rebuild vids, as we head into final assembly,especially dialing in camshaft's,compression ratio's and everything else that makes internal combustion engines cranky,Aussie Heads and Race Engines-One Man One Shop
Edelbrock RPM Olds 455 Head Porting
The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. My first attempt at porting any cylinder head. I raised the roof .200" and dropped the floor .040". It's best to leave the floor alone or raise it by filling with epoxy. Porting kit by Mondello.
Death of a turbo
Killed the Big16g and it was all my fault. A clamp wasn't bolted on straight and it died an early death. New Big16g replacement has been installed for now. Car still runs low 12's.
"How To" Port polish an intake manifold
In this video I show you how to port polish an intake manifold. Remember to wear your safety gear and take your time. The intake itself took roughly 2 hours to polish. Removal of the head is recommended before any grinding or polishing to ensure none of the filings make it into the cylinder bore and cause damage to the cylinder walls.
Volvo Engine head porting / port matching prep work !
Music : Mr oizo and Gaspard Augé "tricyle express"
Step two in the project :
Gasket matching is a good way to improve the flow in your head (engine heads only) and to avoid the bad turbulences where they are not supposed to be : between parts.
It's the first step in your porting job that you should think about ,and do with your brain and hands.
The castings patterns are often quite "bad quality" (or i should say the consequence of the application of a mass production process ) and it's the way to start this kind of job.
Volkswagen Pump Timing video.wmv
Short video on how to set the injection pump timing on the Volkswagen 1.6 diesel engine.
The Bentley service manuals list the following settings:
Early Chassis: (1977-1983)
1.5l non-turbo 1977-1980 0.88 +/- 0.05 mm
1.5l non-turbo 1980 with yellow dot 1.15 +/- 0.05 mm
1.6l non-turbo 1981, 1982, and 1983 pickup 0.88 +/- 0.05 mm
1.6l non-turbo 1983 Rabbit and Jetta 0.95 +/- 0.05 mm
1.6l non-turbo 1983 Vanagon 0.90 +/- 0.05 mm
1.6l tubo diesel (1982-1983) 1.00 +/- 0.05 mm
MK2 / A2 chassis: (1985-1992):
Engine ME (1.6l non-turbo) 1985 0.95 +/- 0.02 mm
Engine ME (1.6l non-turbo) 1986 and up 0.90 +/- 0.02 mm
Engine MF (1.6l turbo) 1.00 +/- 0.02 mm
Engine 1V (ECO diesel) 1.00 +/- 0.02 mm
MK3 / A3 chassis (1993-1997):
Engine AAZ (1.9l turbo) 0.80 +/- 0.02 mm
volvo Diesel 240 D24 picking up the new engine
I have a new engine : )
it's a NA 2.4 idi diesel from vw
It was rebuilt by a professional.
to be able to go on the trailer i have to strip it down a bit because it's quite big even if it's not a cummins : )
Volvo Engine head porting/ matching exhaust
Gasket matching my Exhaust port on the head.
Nothing spectacular and quite boring to watch but quite tricky to do.
The point on this "process" is to align correctly the Exhaust port with the Exhaust manifold to allow gas to flow without turbulence.
it can exit faster and let more fresh air come inside the cylinder.
In the same time the shape of this port is important :
the very light conical shape is a good and reliable design for Exhaust.
the point is to grind very far to have a tight curve and not only grind to match.