k31th less WHY; more WOT Site Developer 28,994 Member For: 16y 7m 16d Gender: Male Location: Melbourne Posted 08/05/16 04:45 AM Share Posted 08/05/16 04:45 AM Wow... Lucky it didn't do a whole lot more damage... Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,751 Member For: 13y 4m 5d Posted 08/05/16 07:45 AM Share Posted 08/05/16 07:45 AM Just an FYI , arp claim 200 000 psi UTS which is 1350mpa. 12.9 socket head is only 1200mpa. Not a huge issue depending on what you torque them too, as it's the clamp force your trying to generate. Link to comment Share on other sites More sharing options...
barnz Member 3,047 Member For: 11y 6d Gender: Male Location: Brisbane Posted 08/05/16 07:47 AM Share Posted 08/05/16 07:47 AM can see where the bolt head was rattling around. Lucky it didnt end up any worse. 20 bucks is a good result! 1 Link to comment Share on other sites More sharing options...
eff xr6t Member 569 Member For: 11y 1m 27d Posted 08/05/16 01:16 PM Share Posted 08/05/16 01:16 PM Welcome to the life of the high hp manual problems. Don't think it will be the last time you pull the box out with an organic clutch trying to hold up in this. Did it transfer to much metal from the flywheel to the crank whilst it was loose? The arp bolts are good but like you found they require a thick flywheel mounting surface. Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 1d Gender: Male Location: Central Queensland Posted 08/05/16 09:59 PM Author Share Posted 08/05/16 09:59 PM 8 hours ago, eff xr6t said: Welcome to the life of the high hp manual problems. Don't think it will be the last time you pull the box out with an organic clutch trying to hold up in this. Did it transfer to much metal from the flywheel to the crank whilst it was loose? The arp bolts are good but like you found they require a thick flywheel mounting surface. I was very lucky, as there was a very small amount of metal transferred to the flywheel. We resurfaced the flywheel and filed the crank to ensure flat surfaces. I know what you're saying about the clutch. For that reason, I am very kind to it. No big launches or fanning the clutch at all. It will be interesting to see if it has enough clamp force, to handle the increased torque when the car gets a feed of E85. Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 1d Gender: Male Location: Central Queensland Posted 08/05/16 10:18 PM Author Share Posted 08/05/16 10:18 PM (edited) 14 hours ago, gaz097 said: Just an FYI , arp claim 200 000 psi UTS which is 1350mpa. 12.9 socket head is only 1200mpa. Not a huge issue depending on what you torque them too, as it's the clamp force your trying to generate. We only torqued the bolts to 85nm and we used moly lube as per normal. We also machined a slot from the bolting surface, to reduce friction of the bolts head on the flywheel. Fingers crossed that the problem is gone for good. :D Edited 08/05/16 10:18 PM by HI PSI Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,994 Member For: 16y 7m 16d Gender: Male Location: Melbourne Posted 09/05/16 02:03 AM Share Posted 09/05/16 02:03 AM I really hope that solves your problem. 85Nm is what I remember ARP recommending to me. What is the clamping spec on the clutch? 1 Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 1d Gender: Male Location: Central Queensland Posted 17/05/16 11:10 AM Author Share Posted 17/05/16 11:10 AM On 09/05/2016 at 0:03 PM, k31th said: I really hope that solves your problem. 85Nm is what I remember ARP recommending to me. What is the clamping spec on the clutch? Sorry mate, I didn't see your post until now. I'm not sure of the clamp force of the option 5 clutch. I spoke to Mal about it before I installed it. At the time, I wasn't going to use E85, so the clutch was more than suitable at the time. I have called him again since, and he said that it should have enough clamp to handle power runs, but blatant abuse would be detrimental to its life expectancy. I'm not overly cruel to the car anyway and I have never taken ot to the drags, so my driveline has lived a sheltered life. I am considering giving it a run, but I am reluctant, as I know that I will get booted.. Kind of defeats the purpose of going... I have had no end of bad luck with this bloody clutch dilema. as above, I pulled the box and clutch and fixed the bolt issue. Refitted the box and realised that I forgot to install the sandwich plate. So I pulled it again and fixed that. Left the car on the hoist and collected the next day, only to have fluid pissing out of the bell housing when I went to leave. Pulled the box again, only to find that the CSC seal had somehow been pushed past the end of the shaft. Fixed it and refitted box and bled system, only to find that I have a real sh*tty pedal and only 3/4 clutch activation. For the lifeof me, I cannot work out why... I kinda lost my sh*t after that and it has been left sitting untouched in the garage ever since.. Gotta love cars..... Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,994 Member For: 16y 7m 16d Gender: Male Location: Melbourne Posted 17/05/16 11:16 AM Share Posted 17/05/16 11:16 AM Fair enough, the opt5 is a very nice piece of kit. It's always worth going to the drags, especially in a manual, as a 10 (to get kicked out with a B-series Falcon) is a mammoth effort for a manual Falcon. unlucky that the CSC had pushed out that far... It's probably buggered the CSC in doing that, hence the "shitty pedal and 3/4 clutch activation". Cars are a never-ending source of pain until you put that right foot down and have the best time of your life with pants on 1 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m 3d Gender: Male Location: Perth Posted 18/05/16 07:12 AM Share Posted 18/05/16 07:12 AM csc will be full of air. Pressure bleed from the bottom up if you have the gear. Link to comment Share on other sites More sharing options...
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