F6 fitzi Donating Members 14 Member For: 9y 2m 20d Gender: Male Location: Melbourne Posted 21/02/19 10:09 AM Share Posted 21/02/19 10:09 AM Gday all, 1st time poster long time lurker. Use to own an 08F6 and was hanging to get another one with all the mods done this time. Brought a 2010 FG F6 sedan over the weekend, 170,000ks 😖. Needless to say it pulls like a 14yo. Previous owner had it tuned by sparks performance in Melb. He said the mods are: Valve springs and head studs have been done. Race equipped stage 3 turbo, 68mm billet core. 45mm external wastegate (plumbed to the outside under the car) Stage 3 PW Intercooler. PW full fuel system with surge tank, pittsburg pump and fuel pump voltage booster. 1100cc injectors. Built ZF, input shaft and something was done with the drive plate, (cant remember exactly) Battery relo with a 4" intake. huge trans oil cooler. 4" Xforce exhaust. Loud af unfortunately.  Only runs on E85 and the car didn't come with or need a device. Pretty sure its a standard tail shaft (with loops) and diff. he said it run 10.6 at Calder on 235 radials. will post some pics / Dyno sheet soon.  The car come without a Roadworthy (was cheap imo) . Brought it to my mechanic to see if it would pass with the surge tank and he said its fine. He did say the External Wastegate has to go. Should I remove the Wastegate and block it up only for the roadworthy and tell them to not let the car go on boost 😱. Or does anyone here have any other ideas or know of a mechanic that would overlook this for a Roady in Melb? Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,991 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 21/02/19 10:11 AM Share Posted 21/02/19 10:11 AM if your mechanic is able to give you a roadworthy, then just let him do it... the external gate can just be plumbed back into the dump pipe to get around the issue. It'd be super loud with a "screamer pipe" like that on boost... Â with those mods, it's unlikely you'll get a roadworthy anywhere else, so go with whatever he is willing to do. Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,901 Member For: 9y 9m 25d Gender: Male Location: South Australia Posted 21/02/19 10:27 AM Share Posted 21/02/19 10:27 AM 12 minutes ago, F6 fitzi said: Should I remove the Wastegate and block it up only for the roadworthy and tell them to not let the car go on boost 😱.  It depends if you want 50psi in the mid. You could always put a large hole in a silicone cooler coupling to avoid that.  Does it have to go or can it be plumbed into the exhaust? Link to comment Share on other sites More sharing options...
bossmang FREAKY Donating Members 12,423 Member For: 14y 10m 29d Gender: Male Location: Melbourne Posted 21/02/19 10:35 AM Share Posted 21/02/19 10:35 AM you sure did lurk around for 3 years first hahah Link to comment Share on other sites More sharing options...
F6 fitzi Donating Members 14 Member For: 9y 2m 20d Gender: Male Location: Melbourne Posted 21/02/19 12:14 PM Author Share Posted 21/02/19 12:14 PM (edited) I asked can it be plumbed back into the exhaust and he said it has to go completely. They have to take photos now for vic roads. Might get a 2nd or 3rd opinion.  If that doesnt work could get another tune/xcal and have have a grandma tune with the wastegate removed for the roadworthy. Wanted a 98 tune anyway.  😂@ as if, never had a post worthy car till now. Edited 21/02/19 12:23 PM by F6 fitzi Tried to insert a pic of😣 Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,901 Member For: 9y 9m 25d Gender: Male Location: South Australia Posted 21/02/19 12:27 PM Share Posted 21/02/19 12:27 PM What ex manifold is on it?  You can't just not run a wastegate man, no matter how it's tuned. It'll boost to the moon if someone floors it. It'll easy go 20+psi on part throttle.  If pics have to be taken, I'd assume those pics will have to show a stock manifold with a stock internally gated turbo etc.  Maybe you can get someone to send you some pics of a stock setup? Link to comment Share on other sites More sharing options...
F6 fitzi Donating Members 14 Member For: 9y 2m 20d Gender: Male Location: Melbourne Posted 21/02/19 12:43 PM Author Share Posted 21/02/19 12:43 PM Looks like a stock manifold. Will take pics and try uploading them tomorrow. Would a limit of 2,000rpm +/-stop any spooling? Hundreds of similar cars would have somehow been through this and got a roadworthy. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,991 Member For: 16y 7m 13d Gender: Male Location: Melbourne Posted 21/02/19 12:46 PM Share Posted 21/02/19 12:46 PM nah, not hundreds... most people get a stock (or near stock) car and then modify it, which doesn't require a roady for the modifications... (at least here in Victoria)... you're doing it the other way; you need a roady and your car is already modified... this doesn't work well if the person doing the roady cares at all about the risk of them losing their ability to give out roady's... Â but, yeah, a 2,000 rpm limit would do the job, for sure... but would that compromise the roady? dunno... 1 Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,901 Member For: 9y 9m 25d Gender: Male Location: South Australia Posted 21/02/19 12:55 PM Share Posted 21/02/19 12:55 PM If it's a stock manifold then all you need is a stock turbo, quickly change the flange on your dump to fit and possibly the change the dump length a little bit.  You'd need a couple of silicones to hook it up.  I think the issue will lie with the manifold/turbo setup.  If it was my job to approve wg type, among other things, you know I'm not going to fall for a setup that has an ex gate provision blanked off.  I'm not in vic though so I don't have all the answers. Link to comment Share on other sites More sharing options...
F6 fitzi Donating Members 14 Member For: 9y 2m 20d Gender: Male Location: Melbourne Posted 22/02/19 03:24 AM Author Share Posted 22/02/19 03:24 AM (edited) Finally loaded some pics. Does that look like a standard ex manifold? Would be happy an prefer to just plumb the gate exhaust back into the dump if that's all it took. Edited 22/02/19 03:31 AM by F6 fitzi .. 2 Link to comment Share on other sites More sharing options...
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