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Thread: Project 1989 E30 335i coupe.

  1. #316
    Join Date
    Apr 2006
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    Adelaide
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    Nice! The 3.91 will be good - Jamjars' old car had a 3.91 open and it flew along pretty well.

    Looking around the web at many threads on many different forums, I'm not sure anyone is paying the cash to photobucket.

  2. #317
    Join Date
    Nov 2009
    Location
    Brisbane, Australia
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    luke wrote:Nice! The 3.91 will be good - Jamjars' old car had a 3.91 open and it flew along pretty well.

    Looking around the web at many threads on many different forums, I'm not sure anyone is paying the cash to photobucket.
    Yep the diff was great in the 323i it should be outstanding with more hp availabe. I am concerned that I'm making too many changes at once here as it is but I have also noticed the CV shafts are still sitting beyond parallel to the ground. I'd like to add some extra rear ride height before the car is driven in anger again. I'm even tempted to replace the factory sway bar links, reinstall the stock sway bar, raise the rear ride THEN go to the next trackday before adding the 16mm sway bar into the mix.


    IMG_2256.jpg

    I had a slight coolant leak, pretty sure it was the water pump gasket judging by the corrosion on all the lower pump bolts. Old pump has a little play so I will replace it while I'm here.

  3. #318
    Join Date
    Nov 2009
    Location
    Brisbane, Australia
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    1,083
    Car went back together yesterday without a hitch.

    I also reinstalled the mtech copy bar.

    A pair of 195/60/15 maxxis cheapies were sourced for my skid wheels and fitted for the test drive (treadwear 400!!).

    But the test drive was not so successful, under power the car emitted the same thumping vibration that I had attributed to the chunked out unbalanced tyres from the drift day shenanigans.

    IMG_2270.jpgIMG_2264.jpgIMG_2265.jpg

    I got under the car today and found all the stuffing sticking out of the guibo so it is a safe bet that my problem lies there.

    Its next outing will be the QR midweek sprint next Wednesday so I ordered my new guibo from clickable today.

    Now I wait.
    Last edited by Varden; 01-08-2017 at 11:01 AM.

  4. #319
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    Apr 2006
    Location
    Adelaide
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    Ouch - that guibo is toast. Did the clunk sound like it was coming from under the front seats Varden or the back?

    I'm still chasing a clunk in mine that's only there sometimes - maybe I'll recheck the guibo (although I think it's probably the left side CVs in the rear as the right ones were clunking previously).

  5. #320
    Join Date
    Nov 2009
    Location
    Brisbane, Australia
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    luke wrote:Ouch - that guibo is toast. Did the clunk sound like it was coming from under the front seats Varden or the back?

    I'm still chasing a clunk in mine that's only there sometimes - maybe I'll recheck the guibo (although I think it's probably the left side CVs in the rear as the right ones were clunking previously).
    It was more of a thrumming vibration under heavy acceleration, there was also a whacking noise coming up through the floor but I think that was a stray pad wear sensor cable that had dislodged while i was doing the sway bar swap.

    How are your subframe bushes?

    In other news....

    IMG_2271.jpg

    Overnight guibo!

    Thanks clickable!

  6. #321
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    Nov 2009
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    Track day!

    After all the last minute repairs and improvements the car made another successful journey to QR to complete its second sprint day of the year.

    My sister booked this one weeks ago as soon as she had her e30 up and running again so I was committed to attend no matter what.

    We rolled up at 11:30am to find the place packed with cars with only the pit bays with no roof left to claim. During driver briefing we were told there were 92 cars registered for the event meaning there would be 5 groups instead of the usual 3 groups. Some of the mid week regulars grumbled but at least it meant some rest between sessions even if it meant there would be no chance of extra sessions after the 4 timed sessions.

    IMG_2278.jpgIMG_2279.jpg

    No improvement over my last outing, car still nudged 180 kph down the front straight with the 3.9 gears but was singing in third gear on the exit of turn 5, might try 4th next time. Best time of 1.09.5888 for the day in first session. I was seeing so many faster cars in my mirrors that day I spent almost every lap waving people through when I should have just waited for them to hose me on the next available straight while I held my position in the turns. I think I only heard the rear sway bar thump against the bottom of the car once all day and in the last session I got a little braver and realised there was more grip to be had if I was more aggressive with it. I even managed a power slide out of turn 4 on the last warm down lap of the day.

    Sister went well with a pb of 1.12.8803, not far off her 2012 effort of 1.11. She suffered fuel starve exiting turn 6 in her third session (fuel gauge might not be so accurate) but other than that her car didn't miss a beat.

    IMG_2273.jpgIMG_2286.jpg

    Next mods, rose jointed rear sway bar links to replace the overly long whiteline ones and I think its time for the BC 6kg rear springs to go.

  7. #322
    Join Date
    Nov 2009
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    Brisbane, Australia
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    I have raided my spare parts again and I have repurposed some 60mm KYB lowering springs I got years ago. They seem much firmer than the 6kg beehive springs from BC.

    IMG_2355.jpg

    I just had to get the ride height close to the BC set up.

    IMG_2361.jpg
    Nope, despite the spring being 15mm shorter it added 20mm of ride height when swapped into the space the BC spring sat in.

    IMG_2393.jpgIMG_2396.jpg

    I played around by removing a spring collar and winding the last one right down and that got me in the ball park but it looked like the threaded collar was going to be my new bump stop so I added a lower spring pad to the 60mm lowering set up and removed the adjusting collar to reuse the pads that came with the springs to come within 2-3mm of the BC set up.

    Hopefully it will settle more when driven.
    Last edited by Varden; 23-09-2017 at 10:50 PM.

  8. #323
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    Nov 2009
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    Track day time.

    IMG_2467.jpg
    IMG_2468.jpg
    IMG_2469.jpg
    IMG_2470.jpg

    Right, with the new rear springs oversteer is now an option. In fact the car switched ends on me with such enthusiasm on my second run through the turn three dipper on the QR sprint circuit today that I couldn't save it. The rest of the sessions were a mix of understeer transitioning to oversteer when I gave it too much steering input. The rear tyres are heating up much more now and after session 2 the pressure in the rear tyres was 44 psi. I dropped that back to 38psi hot for session 3 and the rear end felt less greasy but oversteer was still on the table with all kinds of lazy mid and corner exit tank slappers to be had.

    I added three clicks to the front suspension to stiffen the front up and that gave me a bit more consistency in my final session with some nice four wheel drift on the exit of some of the faster turns. Still no improvement in lap times, but much more interesting to drive.

    My mate with the pictured Lancer GSR was fastest in session bar none getting a PB of 1.04 in his 4th session and a 1.03 during unofficial happy laps despite a swag of teething issues (spongy brakes and clutch, ecu spikes(??!!)wheel weight wedging itself between his brembo brakes and his new 5 stud conversion wheels AND an intercooler hose blowing off the turbo in session three despite the addition of a welded bead since last time.

    At the end of session 4 my fuel and temp gauges stopped working and the service light began to flicker so I called it a day.

    I will probably park the car up until next year while I decide what to do next.

  9. #324
    Join Date
    Nov 2009
    Location
    Brisbane, Australia
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    I have put my session 2 on youtube.

    https://www.youtube.com/watch?v=hRYhKX70DxE

    ...and here is the fastest lap of the day after some fettling.

    https://youtu.be/87HSNw-nudk

  10. #325
    Join Date
    Apr 2006
    Location
    Adelaide
    Posts
    1,760
    Nice work! The car looks a bit of a handful now, but I'm sure you'll get it sorted in the end.

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