Manifold porting

December 8, 2008

Today the head, angry cam and other miscellaneous bits got to Fairfield. We launched straight into porting the manifold to the carbies and the head. Quite a simple process, but ended up taking most of the afternoon. 

Step 1, Prussian Blue

Step 2, Line up and mark

Step 3, Grind and polish

Step 4, Test and repeat steps 1-4 as necessary

We also discovered that the later Regatta heads (which we now have) have 10mm stud/bolt holes, and our older 1300 cc block has M12 studs in it. The head is going to meet its maker briefly to be drilled to 12mm, and while we’re in the area, the cam box is having 2.42 (?) mm taken off it to accommodate the ridiculous new cam. We’ve also ordered new M12x1.25 cap screws for the new head because the older studs were a bit cancerous. 

Just to make an interesting comparison, the old valves and the new valves. The inlet valve difference is more noticable.

Still to happen is the vernier cam pulley, getting the rear shocks happening, front left wheel bearing, beer and bbq’s of summer. 

P.S. Santa is coming soon!

Advertisements

Any head is good head

December 6, 2008

Judging by the size of those ports, we have a very good head on our hands. Prepared by the blokes in Eltham, it promises to be good to rev to 9000 rpm with the steel valves and springs (12000 if we decide to upgrade to stainless… which we won’t… yet.)

John Black Special

John Black Special

 

It is to be matched with a rediculous cam we’ve borrowed, just to see whether it will work for us. John used to use it, but it was no good foor hillclimbs. It only made power from around 6000 rpm. Our limiter is currently set to only 8000 rpm, but we’ve been told that it should be fine to crank to 9000.

The head will be fitted Monday or Tuesday, and will go to the dyno once we get the vernier cam pulley made. Finally it is all coming together nicely.  We WILL be back on the track in the early New Year!

In other news…

 

Getting In

Getting In

 I finally got around to doing the V8 Race Experience I got for my Birthday nearly 12 months ago! I had a ball, even though all the sessions were running late and I waited for nearly 3 hours for my drive.

Although the torque of the car was vary impressive, it was the braking which I could not get over. Between the ABS, slicks and the warm track, the effect was eye popping.  I had an instructor on board with me, who guided me through the line and the braking points. It was a fantastic way to learn the Calder Park circuit (short course). This means I have a minor advantage over Julian when we finally get to take Bianca out to the Western ‘burbs. The Holden V8 was lapping around the 58 second mark, it will be interesting to see how much slower the X will do it!

 

V8 Lap

V8 Lap

 

 

Many many thank-yous to the Bennetts who knew this would be right up my racing line.