2014 Round1 video & log

Nothing too exciting. Round 1 on last year's tyres, just learning to drive again after 6 months rest.

Also some interesting temperature log from this round. Shows the intake temp (sensor behind the throttle) and coolant temp gradually climbing in my 3min run at the sprints. Ambient temp was about 30 degree celcius. The intake temperature is actually taken from inside the manifold, thus it is post intercooler temp. It definitely does show the factory intercooler not coping with heatsoak. Same can be said for the coolant radiator.
This is only at 300hp with boost set at 1.4bar. By the end of the run the temps are at levels where the ECU will start to pull timing back. Will be interesting to see how I go on with additional hp(same boost) on next round, may be the Elf will keep the temp in check. I'm starting to see why keeping the boost limit at turbo's efficiency zone is important for the factory turbo+intercooler.

Note the intake temp + coolant temp rise

2014 Season begins..

Started the 2014 MC Motorsport State Sprint Championship a bit unprepared.
Had changed out the intercooler+intake piping during the off season and it was due for a re-tune but didn't get around to it before round 1 began. The logs show injectors hitting 95%+. Paranoia set it on Run3 and I pulled out as I thought the car was pinging, most likely sound of gravel hitting the guards LoL.
Anyway, off to Racetorque for some new injectors and a re-tune. While at it, got it tuned on Elf WRF and yielded about 40Nm and 30kw higher all around. Now just gotta resist the urge to rev past 6000rpm and short-shift earlier.

Tuned by Lane @ Racetorque

Just gotta remember to stock up on Elf every month

Andrew @ Racetorque filling up the jerry can with some GoGo juice.

Also during the off-season, I DIY flocked the dash (never again!) and relocated the battery inside. Flocking was a messy process but it turnout ok. It was followed by general clean up of the engine bay and the interior.

2014 Spring cleaned interior and Engine bay

2013 Season result - 2nd Outright & 2nd 4WD Open

Haven't been updating for a while but I finished the season 2nd outright :)

Results here:
http://mcmotorsport.com.au/state-sprint-championship-results-2013http://mcmotorsport.com.au/state-sprint-championship-results-2013

RS diff video

Made some video of me working on the rear diff

Round 4 Video

Round 3, Round 4 and Mini Spool

Managed 4th outright and 3rd in class DO (4wd Open) again in May's round 3.

Round 3 reults

The rear RS diff was due for a rebuild for sometime now, it stopped locking probably 3-4 events ago I guessed it was probably worned plates. When I took the diff apart it looked like one of the end spring plates was replaced with a friction disc instead. I assume this was done to reduce the preload.
I would have just rearranged the plate order. But the thing is whoever did this before me had the extra friction plate in wrong order and was rotating against the case!!! thus wearing into it taking material off. So the case is pretty much a write off.

Chance of getting a replacement spring plate before the next round didn't look good. So I reassembled the case with mini spool for round 4. FULLY LOCKED 100%!!!

The diff is out

Diff disassembly and mini spool

Anyway, with the locked rear diff I headed for Round 4 and managed 1st place outright! the weather had a lot to do with it though. Faster guys had to endure the rain in the afternoon session while I was lucky enough dry morning runs.

Round 4 Result

MC Motorsports Round 2

Also managed my best placing so far at the MC Sprint, helped by the weather and the new endurance format :)

Placed 3rd overall

Barbagallo Anzac day sprint


Had another crack at Barbagallo on both long and short track and managed to set new PB's for both.
Although the new times set aren't bad but I felt there was alot more in reserve that could have been extracted with more seat time, only been out on Barbagallo twice in 2 years.
With a bit of work on the rear diff and suspension, I think low 54's on short track is achievable on 300hp.
But not sure about cracking 53, 400hp+ might make the job easier, well there's only one way to find out I guess.

On the long track morning session, this was my 1st time I've really had a proper go at it. Definitely room for improvement there. Brake and Entry into the basin and turn 7 are the obvious places I'll need to work on, I wasn't prepared to find the limits of my braking system so early in the day though.

A new short track PB 54.77sec

A new long track PB 65.79sec

Short Track Video

Long Track Video

Brembo Painting

Finally got around to putting some fresh coat on the sad looking Brembo calipers. Was relatively easier to do then I thought. Dupli-color caliper paint went on well and dried pretty quick.

At the same time, I've adjusted the pad play in the calipers, some pads were knocking around a bit.
I don't use anti-rattle clips, instead I adjust the tension on soft metal tabs that grab the pads in the calipers.

A050's after 2012 season

Photos of A050's in medium compound after 2012 season of sprints.
This is after 7x MC sprints and 1x Barbagallo sprint.
They were flipped on the rim after 4th event.
Running 30-32psi front and 28psi rear.
-3.5degree front camber & -2 degree rear camber.
Grip level is still 80+% 1 year after 1st heat cycle, keeping them indoor helps.

I ran Dunlop DZ03G's with -4.5/-3.5 degrees and in hindsight A050's might have benefited with more camber at Barbagallo.

If the fronts were pushed into understeer the edges scalloped on the tread and centre line wear was high, time to flip on the rim.

Round 1 2013 Sprint Result

Managed to place 4th outright in round 1.

Rotational idle with Autronic

Making some music with Autronic :)

2013 MC Motorsport Sprint Round 1 Video

Runs 3 Morning session 2:49.633

Some photos taken while preparing for 2013 season

Stroker build dyno result

Had the car back for few weeks now but haven't really had a chance to properly drive it yet. However, it went back to Race Torque today for a re-tune after I found the metal cat had melted and collapsed inside. The guys fixed the problem for me and re-tuned it yielding 227kw and 440Nm @approx 1.2bar in 40 degree heat.
So a nice round figure of 300hp with lowish boost, more importantly plenty of torque where it counts, quite happy with the result, now let's see if this translates to better times on the track.

Few typos on the printout with my name and should read 2.3 as capacity

WTAC 2012 Eastern Creek Sydney

Some photos from WTAC 2012 I went to last year, hoping to go again this year.

2.3L Stroker build

RaceTorque is currently  rebuilding the engine with a Manley 2.3L stroker kit. Took photos of bits and pieces before it all got assembled.

Machined block. Had to bore out slightly larger than anticipated as the bore didn't come out clean. Sounds like previous builder didn't clean them up properly after some detonation damage.

HKS 274/278 CAMS are in as part of the build

Manley 2.3 stroker crank

Manley piston

Rods, crank and head

Stock sump

Oil pump

Stroker recipient

2012 MC Motorsport Sprint Results

So my 1st ever sprinting season is over. Managed 9th outright and 5th in 4WD Open class. Also managed to get into 55secs at Barbagallo short track. Quite satisfied with the result considering I'm still on a steep learning curve. The Evo has been amazing all season so I'm rewarding it with a fresh stroker build for next year. It's previous forged build did start to show signs of wear anyway.

Outright Results - 9th overall

http://www.raventechracing.com/documents/results/sprintchampionship/2012/allrounds/OutrightResults%20-%20634871370737300543.pdf

5th in Class DO

http://www.raventechracing.com/documents/results/sprintchampionship/2012/allrounds/ClassResults%20-%20634871370773464598.pdf