GT6Steve Posted October 20, 2009 Author Share Posted October 20, 2009 I think the GT manifold is a way forward. Still some details to sort there so I can't say much yet. Forged pistons definately and the new motor will be sixty over versus the 40 we'rer running now. Next cam will be hotter as well if I can get some lifters. Kai Radicke here in the US says he has the good ones but he won't answer my Emails. No matter what, I won't have a competetive engine in time for the last race of the season November 7th. I'm arguing over just putting in the Yellow car's motor. But can I really tolerate running midpack just to run? There's a lot of psychology involved there since I'm not running for the champioship. I chose to skip the Buttonwillow race which put me out of the chase. That was another reason I played with Gary, He's still in the hunt. So it boils down to just running versus staying home. I think any race is better than no race! I'll keep moving forward at this point;-)) Link to comment Share on other sites More sharing options...
thebrookster Posted October 20, 2009 Share Posted October 20, 2009 Jealousy Steve, tis a hard mistress!! Out of interest, what was Gary's take on the situation?? Must have given him some food for thought? Good luck for the rebuild, sounds like it could be a corker in the making!! What is it you are looking for out of interest (if it is not giving too many trade secrets away)?? More torque low down, or power at the top?? I understand GT's mani has big improvements at the bottom end? I think you should give the Yellow engine a blast, cause a) it gets you out racing, and will give you the best indication as to what needs (or doesn't need) doing to it!! Just remember that it is not a motorbike eh. Link to comment Share on other sites More sharing options...
GT6_sleeper Posted October 20, 2009 Share Posted October 20, 2009 unless steve is wanting a copy of GT's old race 6 to 1 mainfold that mental thing cannot find a picture right now, now that would be cool Link to comment Share on other sites More sharing options...
Andy Posted October 20, 2009 Share Posted October 20, 2009 I feel your pain as someone who has done the same before, mis-selecting 1st at 8000 rpm makes a great noise, like the biggest swarm of the angry-est bees has suddenly invaded the engine bay. It time allows get the spare engine in and race; it might be the other guys turn to screw up now. As someone with a mediocre engine at the moment (albeit in a great car) it’s been a surprise this year how many class podiums I’ve picked up as others fall by the wayside And Steve, next time you get in front – stay there you Muppet, save the waving for the victory lap Andy Link to comment Share on other sites More sharing options...
PeteClan Posted October 20, 2009 Share Posted October 20, 2009 Tough luck Steve but as we all know these things happen. As people used to say to me it's all character building. My reply I don't need any more character building! My guess is you'll throw any engine in and get out for the last race and enjoy it. Just make up for the lack of power with experience and driving skills. Pete Richards Link to comment Share on other sites More sharing options...
AndreGT6 Posted October 20, 2009 Share Posted October 20, 2009 Photos? Link to comment Share on other sites More sharing options...
Nick Jones Posted October 20, 2009 Share Posted October 20, 2009 The camera was declared missing at the same time as a valve cap, several pushrods and so on..... no idea what it was doing in the engine though :-/ perhaps Steve was doing his own valve train analysis and that's the real reason for 10,000 rpm I too await pics with interest.... I think.... :-/ Nick Link to comment Share on other sites More sharing options...
GT6Steve Posted October 20, 2009 Author Share Posted October 20, 2009 A few pics here http://s206.photobucket.com/albums/bb46/GT6Steve/Vegas%20shift%20error/ Oddly the one of the hole and pushrod has disappeared. This is the lashcap wedged in the retainer and the valve is stuck in the guide. Bit of luck there! Well put up more pics when time permits. Link to comment Share on other sites More sharing options...
spitNL Posted October 20, 2009 Share Posted October 20, 2009 I'm amazed none of the alloy rocker arms broke. To be honest I was expecting more carnage; pistons not holed, valvestems in one piece. Moments later... missing three pushrods, one valve spring retainer cap and one camera... What was the camera doing in the engine? Frederick Link to comment Share on other sites More sharing options...
toofast2race Posted October 20, 2009 Share Posted October 20, 2009 Nice valve caps... custom job? Link to comment Share on other sites More sharing options...
GT6Steve Posted October 20, 2009 Author Share Posted October 20, 2009 Crower titanium on 5.5mm stems... 8) Frederick, we've not opened the bottom end or the trans yet. Link to comment Share on other sites More sharing options...
spitNL Posted October 20, 2009 Share Posted October 20, 2009 Nice valve caps... custom job? Titanium is my guess. Tripple valve springs as well. Link to comment Share on other sites More sharing options...
AJ.Lintern Posted October 20, 2009 Share Posted October 20, 2009 I wonder if there's some way of engineering a weak link into some part of the drivetrain that gives way before the engine can spin itself to destruction? Link to comment Share on other sites More sharing options...
spitNL Posted October 20, 2009 Share Posted October 20, 2009 Frederick, we've not opened the bottom end or the trans yet. What I meant was the bottom was stong enough for the rpm's, but the valvetrain wasn't. Doesn't look like this: I wonder if there's some way of engineering a weak link into some part of the drivetrain that gives way before the engine can spin itself to destruction? Steve most likely has a rev limiter, but that doesn't help in situations like this. Don't know of any other devices, perhaps a transmission lock out? F. Link to comment Share on other sites More sharing options...
AJ.Lintern Posted October 20, 2009 Share Posted October 20, 2009 I was thinking of some sort of one-way free wheel system that allows a certain amount of reverse torque to cover engine breaking, but which fails and breaks the connection between gearbox and engine beyond a certain limit. Another method would be to have an electrical solenoid actuating the clutch when the revs get to say 8000+ rpm? Link to comment Share on other sites More sharing options...
GT6Steve Posted October 21, 2009 Author Share Posted October 21, 2009 Here's the ventilation pic. There's gonna be something wrong with the crank because the front and rear pairings don't have the same height anymore... See one of the pushrods laying there next to the crank scraper relief? Black rod. Link to comment Share on other sites More sharing options...
Nick Jones Posted October 21, 2009 Share Posted October 21, 2009 Here's the ventilation pic. There's gonna be something wrong with the crank because the front and rear pairings don't have the same height anymore... Hmmm, that's a strong indication........ relatively modest hole though...... JB weld? Nick Link to comment Share on other sites More sharing options...
DaveNotSoSideways Posted October 21, 2009 Share Posted October 21, 2009 That's snapped then Good noise, been there done that, drove it home 10miles Link to comment Share on other sites More sharing options...
spitNL Posted October 21, 2009 Share Posted October 21, 2009 Free weight saving. 8) Link to comment Share on other sites More sharing options...
Nick Jones Posted October 21, 2009 Share Posted October 21, 2009 Good noise, been there done that, drove it home 10miles Me too - more like 5 miles though. Don't reckon mine would have shown up on piston heights tho - not without a dti anyway. I think Steves will look more like that TR6 one we saw earlier in the year - just with a smaller hole...... Why do you need a new head Steve? Nick Link to comment Share on other sites More sharing options...
GT6Steve Posted October 22, 2009 Author Share Posted October 22, 2009 Hmmm, that's a strong indication........ relatively modest hole though...... JB weld? Nick I've epoxied my favourite old block closed before but I suspect I'll want a linebore on this one before doing that. I've just got to be sure to mark it so I remember it needs some careful inspection. That said, I'll be suspicious of reusing anything from this engine due to the violence of the incident. Link to comment Share on other sites More sharing options...
bearmtnmartin Posted October 22, 2009 Share Posted October 22, 2009 Sorry for your pain Steve. I doubt you are any richer than me and thats an expensive hole. Link to comment Share on other sites More sharing options...
Nick Jones Posted October 22, 2009 Share Posted October 22, 2009 That said, I'll be suspicious of reusing anything from this engine due to the violence of the incident. Yeah..... : do you have a tach tell-tale? Nick Link to comment Share on other sites More sharing options...
GT6Steve Posted October 24, 2009 Author Share Posted October 24, 2009 Hellelujah! The killer trans appears to be OK upon initial inspection. In the next hour I should have the bottom end open to find all my missing parts. Sadly the camera seems to have died... Link to comment Share on other sites More sharing options...
GT6Steve Posted October 24, 2009 Author Share Posted October 24, 2009 Oooh, It's starting to get messy. First, I find all kinds of holes punched into my beautiful alloy dry sump pan. Can't be good... Then I lift the pan to find all this debris...This is where I left to buy a new camera cuz this has GOT to be documented... And here's the #2 rod looking a little battered. Haven'y yet found why the engine won't turn. Maybe this rod or perhaps the chain is all piled up from where the cam parted ways... More to come. Link to comment Share on other sites More sharing options...
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