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ActionDan

Budget CA S13 Track Car

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  • $80 of Autobarns second hand finest... 


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    Removed coolant fitting from Silvia turbo, my hose guy said put a teflon hose on it as it has failed from heat fatigue. Fitting appears to be a single user style crimp anyway so will just get a whole new hose. 

     

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  • I assume that's sarcasm? The body is rough as and it's an AU. 

    I wont be actually rallying it, just doing dirt motorkhana type stuff, you know witches hats and the like and other events when the Silvia is not able/it's too hot/fun days etc.

     

     

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  • Round 1 entered, March 11. 

    Grabbed a new hose, old one was fully dead. New one is teflon, see how it goes. 

     

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    This bad boy turned up locally, very cheap and was pulled as a runner so shouldn't be completely f**ked. Missing PS, Coilpacks and CAS. 

    Managed to get it straight onto the stand from the back of the car. 

    Tossing up whether I want to attempt a build myself, as I've always wanted to build a motor, but given I was going to put a forged spool kit into it, do I want to risk having it blow up first dyno run because I missed something... 

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    Edited by ActionDan

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  • Replaced the coolant line last night, started pouring coolant in, could hear it leaking, found a split heater hose behind the head. Fixed that and got the car started, only running on 3 cylinders, number 1 not firing at all. It did miss at the last event, but came good so I assumed it was a fouled plug from a few cold starts.  

    Swapped coil packs, plugs, checked voltage to looms, checked compression, all looks OK. 

    Suspect a failed/clogged injector, will pulse it manually today/tonight and go from there. Have sourced another one so should be able to swap it out before round 1. 

    Couldn't have just "worked" could it... 

     

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  • So, the mystery continues. 

    Did a little reading, ran my multimeter across the injector, resistance is fine. Grabbed a 9v battery, tested it manually, it fires 0_0

    Start the car, put screw driver to my ear, it is definitely pulsing but car still running like dicks. Decide to hold throttle open just a touch to let i run for a few mins, goes back to idling like a champ.

    I pulled the coil pack while the car was idling, and it zapped me well enough so the spark seems good enough, unless it's a failing plug but they are iridium and the and the only issue i can see on it is that it's been hot. 

    I'll do an ECU diag next, wonder if it's got a bad IAT/Coolant Temp sensor so the timing//fueling when cold is off. 

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    How old are the iridiums? I killed a set in less than 15k km. Pull the plug and have a look.

     

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  • I did, hence knowing it had been hot from being brown/whitish. 

    I put a spare used copper in there and it made no difference. 

     

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  • And just like that... She's gone. 

    Falcon back in the shed now. 

    Thinking I'll have a go at an  engine build for the Silvia myself, pray for me. 

     

    Edited by ActionDan

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  • Round 1 done and dusted, was a hot hot day and it was hard trying to find good tyre pressures. 

    I did manage a class win and a small and questionable PB according to RaceChrono, but it didn't match the official timing. 

    A broken rear sway bar link end my day, though given how the car drove I suspect I did it early in the day and didn't realise til y rear brake duct came down. 

    Enjoy some B Roll footage.
     

     

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  • This might explain the poor handling... 

    Might have to make a bolt check part of my pre-race prep lol

    Grabbing some GKTech rear links today, have had good experience with their gear so far. 

    Also banged up the splitter a little, I will check the mounts as the overall angle appears to have changed with the front edge now angled a little downwards. 

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  • Track day coming up this Sunday, Missus also booked to do a Women's driver day on the Saturday but she's been under the weather so we'll see if she makes it. 

    In preparation, the Silvia got:

    • Oil and filter change.
    • Tyre rotation - they do not look healthy at all from all that sliding, fronts in particular are really bad. Not great wear for 2 track days but I haven't been kind to them. 
    • New GPS module - Dual XGPS160 - GPS and GLONASS, 10HZ. 
    • New phone mount to replace the broken one. 
    • New rear end links. 
    • Splitter straightened. 
    • Bought new Project Mu pads to match the rotors, but not fitting either as the current rotors are still above minimum thickness and no cracks, current pads have plenty left. 
    • Washed!

    XR6 Got:

    • Race seats mounted:
      • Bitch of a job as the seat belt clips are part of the factory seats and include the tensioner, so had to be retrofitted onto the new seats (no harnesses yet).
      • The seat mounts on the floor are not even between the two sets of mounts on a given side and not even driver to passenger side so each piece is bespoke. Factory seat is also offset slightly so I corrected that. Tabs on the seats were all also uneven so that had to be corrected as well. 
    • Tensioner removed, both pulleys replaced, new belt - Now idles nice and quiet. This was such an easy job, which is a nice change.
    • New thermostat housing gasket and sealant - no more weeping under idle at least, see how it goes on track. 
    • Also washed! 

    I also bought one of these 10 in 1 guages and will fit it before next round hopefully - https://www.justraceparts.com.au/10in1-automotive-digital-oled-multi-gauge-display

    I will remove my other guages and feed my wideband into it as well. I am planning on using the 5v warning light output to trigger a relay on something like the water temp sensor so the nistune freaks out and rev limits when something trips an alarm. That way I'll have audible and visual alarms plus the ECU doing "something". 

    Works out being a bit over $200 delivered and includes all sensors, I've only had a quick check over but it looks decent, though the screen is a tough small.

    In other news, I'm going to SR swap the car either after this season is finished, as it will change my class, or when the current motor lets go. 

    Picture time.

     

     

     

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  • Big weekend of Motorsport. 

    Saturday was the Womans driver training day, my partner drove the battle Falcon - she had a blast. 

    • An off broke a cable tie on the brake duct, fixed that and good to know the other 2 connection points are enough to keep it in place.  
    • Shift knob and shifter really needs replacing. Knob came off as there's no thread on the shifter itself, will replace both. 
    • 3rd is stupid hard to find at speed, hopefully new shifter helps.
    • Clutch might be dragging a touch, making it harder to engage gears, might just buy a new cable and do a fresh adjustment. 
    • Coolant leak confirmed fixed.
    • Need to keep an eye on oil levels as it burns a little with sustained revs.
    • Tyres are just so shit. 

    Sunday was Round 2 of the sprint series. 

    • Played with tyre temps only, didn't touch camber.
    • New PB of 57.8, was really stoked about this - Class Win. 
    • Actually got to go in the top 10 shoot out as the car was in 1 piece, set my PB in the shootout, only took a tenth off but not bad given you just get 1 warm up and 1 hot lap. Clearly more in the car given the track temps. Finished 5th in the shootout, .7s behind a Tarmac Evo 10 and a Track only Evo 8, pretty happy with that given they have more power and are on better tyres.
    • New GPS is far more accurate, didn't see more than 1 tenth variance between my time and theirs, which was usually due to rounding of the hundredths column, eg my timer said 57.9 on the shootout, but came back as 57.8 officially. I had done a 57.88 earlier in the day, but it came back as 57.9 officially, also good to know the 57 wasn't a 1 off. 
    • New Helmet and Hans was good, took a little getting used to and works out easier to put them on as 1 piece, with the Hans already attached. Won't wear this at this track all the time, but I wanted to test it before Winton next month. 

     

    Spare CA is sold, SR turns up tomorrow. Took a while but I managed to find one that required rebuild from low comp, not from spun bearing so hopefully reduce the amount of machine work required for crank/line boring etc etc. 

    Round 3 is at Winton on May the 6th, haven't been back in years so I'm looking forward to it. 

    Won't bother posting videos as the motorsport section appears to be mostly dead now so I'll just treat this as my build journal so I can go back and reference things. 

     

     

     

     

     

     

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