Jump to content
SAU Community

Recommended Posts

  • 4 weeks later...

I ran last weekend at the Symmons Plains 60th annaverary meet. Unfortunately after a good run the engine decided to throw a rod.  I've got the engine out but havn't pulled the sump off yet, I suspect a rod bolt has failed as it had oil pressure when it failed.

Time to build the 2.2

DSC_0492.JPG

These were on the cross member

DSC_0497.JPG

Edited by sav man
  • Sad 5

Yeah it was pretty uneventful from the inside.  I assumed i'd melted a piston, but my mates informed me when I got towed back in that there was a loud bang and there was bits all over the track.

The bottom end is stock crank and rods, arp rod bolts and ross pistons.  I've been using those rods since 2011, so they have done alot of work and I think i put the rod bolts in around 2012.

Well at least you have a crank case breather now, we all know RBs love to pressurise the crank case and not allowing oil to drain effectively back into the sump.

Time for a 3.2L 1000hp motor?

  • 1 month later...

I finally got round the pulling the engine down.  The head had barely been marked, so that's a win.

 

The bottom end is quire the mess though.  Pretty sure I found that the broken rod bolt, looks like a clean brake compared to the rest of the mangled mess

DSC_0551.JPG

DSC_0552.JPG

DSC_0553.JPG

DSC_0556.JPG

DSC_0557.JPG

DSC_0558.JPG

  • Like 1
17 hours ago, Roy said:

YIKES. So where to from here? There was an RB20 NEO on Marketplace just before XMAS. I had to resist being me :)

I was going to go down that path, even have a inlet gasket to make a manifold adaptor.  But Targa rules changed again, so 26 crank and rods and a slight bore to bring to to just under 2.2l.  Swap the RB20 highflow for a Neo highflow

  • Like 1
On 1/8/2021 at 11:44 PM, MoMnDadGTR said:

can you have the head machined(skimmed) with the valves still in the motor? 

The head has to be off the engine and cams removed, but yes i've had head skimmed with the valves still in it.

1 hour ago, sav man said:

The head has to be off the engine and cams removed, but yes i've had head skimmed with the valves still in it.

Would be pretty amazing to do it with the head on the engine 👍

  • Haha 1
2 hours ago, Ben C34 said:

Would be pretty amazing to do it with the head on the engine 👍

lol would have better luck fitting a golf ball through a garden hose, ended up striping the whole head and porting it anyway so she will be bare at the machine shop. good to know for future tho so dont have to remove the head components everytime. thanks mates 

  • 4 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
×
×
  • Create New...