POWER time!!

So after a few days of playing with a few different cam  timing options, I've settled on some.
Inlet is set to 106 Degrees. (4 degrees less advanced than centreline)
Exhaust is set to 112 Degrees. (Also 4 degrees less advanced than centreline.)

With these settings it seems to have a little more down low, and still holds it all the way to redline..

Lately i have been playing around with a Program called Engine Analyzer. Here you can enter all the details about the engine, and then see what sorta power it can create.
All the settings are very particular and it took a while to get them all right.

Here is a run with it all set to what my engine is at the moment.

As you can see peak power is at 8000rpm with 174 BHP.
Which equates to 107kw atw.
So a nice increase from my previous cams that were only 90kw atw.

(Although this could change on the DYNO, as this is just a computer generated test. Still good to see what it could be)

New Cams!

So cams are finally in, head is on and all is running sweet.

Friday I spent the whole day at the machinists sorting out the head.
We ended up going with new valves, and machining them to suit. 

Then checking all the clearances and tipping the valves where needed.

Saturday i bolted it all back up and went for a good drive.
Power is really nice, unlike my other cams there is no dip in power.
It just holds it all the way to redline.!

So now im going to play with the timing a little, and fuelling and then get it back on the DYNO and see what it can do!!

Cam Specs:

IN:  278 Duration - 8.76mm Lift
EX:  280 Duration - 8.77mm Lift

Extendendy Valves..

So valves were extended this week.

Exhaust side is all sweet, clearances are bang on.. BUT the inlet side is still around 0.6mm off being fine..
So Back to the machinist to either lengthen the valves more, or find some longer valves that can be used..

And while the car is in bits, i thought i would create some DIY washers for the Rocker cover.
These came out quite nice, and should be a lot better that what i had.
(Also gave the rocker covers a good clean with degreaser)

Hello Cams..

So bought some different cams for the Rolla.
These are a custom regrind by Franklin Cams.

BUT...

They require the valves to be lengthened as the base circle has been modified to gain the desired duration and lift.
So this means taking the head off again, and getting the valves extended.
Got a quote from Quality Autos in Hastings, for $15 per valve..
So this could be an expensive exercise...

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Stock Cam base circle = 28mm - 28.08mm
These cams = 24.90mm

3.1mm difference in Cam Base Circle..
So valves need to be lengthened by at least 1.55mm..

Stay Tuned...
                                       Spec Sheet..

Maintenance - Power Steering Pump

So the Rolla has had bit of a oil leak from day 1..
And i thought it was now time to tackle it.
I found that it was leaking from the power steering pump, so pulled it out and stripped it down.
The main seal was pretty old and looked like it could do with replacing.

So got a new seal from Toyota, and pieced it all back together.
While the pump was out, i got some depressor and cleaned the area it was leaking which was around and on top of the AC pump.

Also found that the AC pump clutch was looking a bit stuffed, so took that apart, cleaned it all and sanded down the two surfaces and reinstalled. (Now have AC again, as the clutch was slipping before)
Then went and installed the PS pump and connected it all up.

Hopefully will have a cleaner engine bay from now on!!