WA Sprint Championship - Overall Results - Round 7 - 20 September 2015 - Course: Big River - 4.35km

Okay! Last race before the new engine...I hope.

Having a few issues on the new block, mivec solenoid won't go in :(
And I might paint the block, undecided.

So this was the first time out with the bigger brakes.  I didn't even have a change to bed them in.
They went hard straight out the gate.
Pretty happy with them, so far no issues.  I did notice the pedal got mushy, but it still pulled up.
Maybe being bigger they were cooking the fluid?










I used the 8.5 with 225 up front and the 215 on the rear with a 10mm spacer.
The track was a lot warmer than normal, grip was back to a confident state.

400th Post - Stage 5 - Head Assembly - 6hrs

Head Assemble -
Torque M10 oversized head studs, clean deck, lube bores with ATF.
Clean head, install head gasket, install head studs, install head, lube threads with ARP lube.
Oversized valves +1mm, upgraded springs, titanium retainers.





/z27a-4g15-engine-re-assembly-torque.html


New timing belt, cam seals, stem seals, gaskets, timing gear, water pumps.

/stage-4-big-ends-pistons-and-rods-6hrs.html
/stage-3-measuring-ring-gapping-6hrs.html




/stage-2-block-cleaning-crank-install.html
/stage-1-block-cleaning-4hrs.html

Clean lifters:
/4g15-4g63-mitsubishi-lash-adjuster.html
/diesel-cleaning-bleeding-tappetslash.html










Cam seal installation.












Install valve train.











Install oil pickup and windage tray.
Next time I might look into a mesh based windage screen tray and baffle. The mesh forms a one way flow of oil.


















Ending up installing the head before the sump, not sure why. Stupid me. All together, tempted to pain the block.

Engine Coolant Temp Sensor - Adaptronic Hardware - AC Delco

So I found out that without the sharing board for the old 420 Adaptronic, the 440 seem to not read the temperature correctly.  As if the signal was halved.  OEM Temp gauge read a 1/4 and 440 saw 66deg max.









So I decided to add a separate sensor, but as usual nothing is easy.
28mm radiator pipe meant a required hunt for said adapter.
So then I had the adapter, the sensor didn't fit.  Needed to convert the 1/8NPT to M12.
Then to tear apart my sexy wiring loom and add another wire in.























This is a AC Delco calibration and M12 x 1.5mm thread.
I had to get the ADC values for the Adaptronic ECU.
I will get my data for the conversion.


























I'm still skeptical about the location, what happens if the thermo fails?
I will revisit the location at a later date.

Big Brakes Mean Bigger Wheels - 4pots and 320mm with some 225/45R16 AD08R

What happens when the Rota Grids 15x8+0 can't fit the 320mm discs? You go bigger.
To fit the 4pots I used 20mm spacer on some 16x8+33?  Enkei RS2 2pc.
I restored the wheels the best I could.







What happens when you don't want to trim your wheel studs? You recess holes in the rim.









Before










Before and after









Do I need brake line locks? I will do my best to make some brackets and lock the brake lines.  Annoyingly its a M7x1.00mm thread!
After 3 shops I found my M7 screws.














Why so shiny? I got bored. Decided to polish up the aluminium cast!
Took way too long. /rcolt-4pots-ucf30-rebuild-running-gear.html

















I like the 5mm clearance :) {above}



I wanted to use rolled pins to lock the bracket, but a threaded solution will be stronger.






















































I was surprised it torqued up. But yeh, I am happy with it. Bracket and bolt seem tight. Better than nothing anyways.