discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 17y 2m 23d Gender: Male Location: Probably above atmospheric pressure Posted 28/04/14 12:38 PM Share Posted 28/04/14 12:38 PM He is a mechanic, that's the problem.Great result from the sounds of it mate! Exhaust should quieten a little over the next few thousand kms if it's a brand spanker.Get some new pics and show it all off! Taking it to the drags? Oh wait you're in SA :( Link to comment Share on other sites More sharing options...
xb99 Member 90 Member For: 17y 1m 20d Gender: Male Location: Adelaide Posted 28/04/14 11:33 PM Author Share Posted 28/04/14 11:33 PM Yeah I'll try and take some pics.Plan on taking it to the drags, but they are very infrequent in SA, and I find they always clash with something else for me.I've got a mate that does a local hillclimb event which I might do for some fun. I went and watched last year, real mix of cars. Obviously a falcon isn't the ideal car for it, but it'll still be fun! 1 Link to comment Share on other sites More sharing options...
mdmatt Member 70 Member For: 10y 11m 26d Gender: Male Location: Perth Posted 30/04/14 11:03 PM Share Posted 30/04/14 11:03 PM What's with the boost spike from around 13-17psi and then tapering off? Link to comment Share on other sites More sharing options...
xb99 Member 90 Member For: 17y 1m 20d Gender: Male Location: Adelaide Posted 01/05/14 04:16 AM Author Share Posted 01/05/14 04:16 AM Yeah, the tuner said he'd lose control around then, but it was maxing out around 16psi luckily, not shooting for the sky. Said to get better control, and to be able to stop that happening, he'd need to port the wastegate (well I think that's what it was, hole with a flap, needed to make the hole bigger). He explained it when I picked it up and recommended it, and it was also noted on the invoice. I assume this is what people call the 'flapper mod'? Guessing the advice here will be to get it done? Car is going back in early next week to get the exhaust issue fixed up. 1 Link to comment Share on other sites More sharing options...
xb99 Member 90 Member For: 17y 1m 20d Gender: Male Location: Adelaide Posted 07/05/14 11:21 AM Author Share Posted 07/05/14 11:21 AM Got the car back tonight, and the exhaust is noticeably quieter! They ended up installing a throttle body inside the exhaust, to block one pipe, controlled automatically via vacuum hose. The result so far is impressive. Its pretty quiet when just driving around normally, and then when you gun it it opens up and lets everything out. Cool and functional.Some bad news though, part of the noise is caused by the diff giving up. I had a whine in it before, and it seems the new found power has brought about its demise. Its making a rapid 'brewweerb... breewwwerb...' noise while moving at around 60k/h with no touch of the accelerator. touch the gas ever so slightly and it shuts up. Get under about 20-30km/h and it shuts up too. Tuner quoted a good price on a second hand one + fitting, but wondering if I should get a reconditioned one etc. I'm assuming a new one is a zillion dollars... Link to comment Share on other sites More sharing options...
xb99 Member 90 Member For: 17y 1m 20d Gender: Male Location: Adelaide Posted 14/05/14 11:55 AM Author Share Posted 14/05/14 11:55 AM Got the car back (again) tonight. This time the diff has been replaced, new diff mount and blade bushes. The recent noise (diff dying) is gone of course, but so are the clunks I've had for years! The most noticeable clunk that's gone is the ones as you coast slowly to a set of lights, braking steadily as you go, somewhere between the auto trans downshifting to first and coming to a complete stop there was a bit of a clunk. Always drove me nuts, finally gone!Unsure if the clunk was in the diff itself or the bushings. A few places have looked at the diff bushings (being a common fault), and told me that the original ones were fine. At one point I even told a workshop to replace them, but they called to say the original ones were fine they couldn't justify the replacement! No one had the diff out before, so how much anyone could see before I dont know.Between the diff being replaced and jd tuning firming up my suspension the car feels so much tighter! Happy with where the car is at now. Plenty of power, and plenty of control.I'm planning to enter a hill climb (under the influence of someone I work with that's been doing them for years), and take it to the strip to see what time I can get out of it. 1 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 8m 17d Gender: Male Location: Adelaide Posted 14/05/14 09:11 PM Share Posted 14/05/14 09:11 PM Great to hear its all worked out for you ryan 1 Link to comment Share on other sites More sharing options...
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