dalmeny wrote:
jpodge wrote:
Questions for any twin cam experts out there - do these engines experience knock before maximum torque when tuning ignition? Or does the torque start decreasing before knock?
Can't help you Joe I have NFI.
Thanks anyway Steve. Have you had a chance to get your car back to the tuner after the TPS wiring mod?
I've spent the last couple of weeks driving the car a few days a week looking for issues. I've more or less stemmed the last of the oil leaks which required a bit more attention to detail from the oil return block and a new set of cam gear seals - I don't think they were installed perfectly level. Not the worst job to fix but there was a fair few steps. Radiator out, fan off, cam cover off, timing belt off, front plate off, repair and repeat in reverse with a careful application of gasket goo. After learning that jacking the engine up on the passenger side makes getting the radiator out EZPZ, it wasn't a difficult job at all.
With the oil leaks as stemmed as much you can reasonably expect from a mini, it's slowly turning into quite a reliable car. Cold starts are pretty good and I have every faith that when I turn the key that it'll start - that concept has definitely made it a lot more stress free driving to and from work the last few days.
I've had to adjust the clutch a few more times than I expected. When driving the clutch pedal is getting closer and closer to the floor. Easy enough to adjust but I'm starting to question whether this is the brand new clutch assembly bedding in, or if there's something wrong. While the clutch master cylinder is pretty old, I'm questioning the proximity of the braided clutch hose to the exhaust. I've bled the system a few times (and later replaced the fluid because it was pretty gross) and I noticed a few bubbles each time I bled it. Now with new and clean fluid, I'm questioning whether that is still happening. Thoughts from the floor please - clutch slave cylinder and hose pcitured below pretty close to the exhaust (gets much hotter than a standard A series I think). Do you reckon this could be boiling the fluid inside the hose?
Lastly, I've booked the car in for a dyno tune to optimise the ignition timing and just to check everything I have already done. Booked in for 17th Dec at PBE Dynotech. Still a few more weeks to sort out niggling issues like this but safe to say I'm pretty excited to see what potential is there to be unlocked.
I've really enjoyed driving the car in the last few weeks. It sounds phenomenal and the power is a huge step up from the 998 that I am used to. In retrospect I should have fitted a different diff, as it's revving at about 4200RPM at 100kmh.
Next steps - upsize the breather hoses from 1/2" to 5/8" hoses as I'm seeing a big of oil on the flywheel (new primary gear and crackshaft).