Wenier

Long time getting back to this. Luckily my pistons aren't stock. Added a fair bit more preload to actuator and that sorted it. So yea Turbosmart actuators appear to need extra preload in this instance.

I'll give the boost to the moon a go as at least that tests the preload of the gate. The Tuner had done a pressure test of piping but I could redo at home just to be sure. Cheers for the info.

OHHHH

Hi all, Been trying to sort and tidy up the Tune on my BF XR6T ute. Now previously the turbo had managed to pull 20psi quite happily, eventually the original turbo gave up and seized. With this I got a standard replacement 3582 core and refitted to the housing as they were undamaged. However decided to upgrade to a turbosmart IWG75 12psi actuator which I have also built a strong bracket for as it was flexing the original bracket a lot when actuating. After the rebuild I found the original turbine housing had worn where the wastegate arm goes through and this was causing it to randomly jam open which wasn't very helpful. Because of this I replaced the turbine housing with a GCG 1.15 housing with the very large wastegap flap. Now we come to the current issue. During tuning it is targeting 20psi but only managing 15-16psi at the manifold. The tuner started measuring the boost pressure at the turbo and manifold and has found the in the higher RPM it has a pressure drop of up to 6psi which is quite excessive, down lower it is as expected from 1-2psi drop. He has also mentioned that it seems to be 1000rpm late getting onto boost. He has checked for leaks in intake piping etc and come up with no leaks. Today I took the BOV valve off to see it it was loosing the pressure and found it would boost to 18-19psi but then fall back to 15psi which is wear the manifold keeps settling to. I am wondering if the preload I have put on the wastegate is not enough (2mm approx) and is allowing the exhaust gases to push the gate open when it isn't commanded. The tuner has also questioned whether the dump pipe is a restriction, it is a Xforce twin pipe style and now I see they only sell the large bellmouth style. Hopefully that all made sense, bit tired while trying to sum this all up and just looking to see what other peoples thoughts on the issue might be. Even with the lower than targeted boost it is make 370rwkw and approx 900nm. Cheers in advance

I got a FG plenum for next to nothing and installed on my BF. Instead of changing thermo I cut the end of plenum and rewelded to have clearance, also welded up throttle body holes and redid them for BF body.

Well meet up with Rab and Paul this afternoon in Christchurch, was great to meet them and put a face to the name. I joined them for the drive towards Greymouth parting ways on the West Coast side of Otira Gorge. Was great fun through the twisty roads around the mountains and both vehicles got to stretch the legs a little. That AMG has got some go to it. Was an easy 1hr back home from where I left them and seem to have misplaced about 2/3 of a tank of 98 quite quickly today. Depending what the guys get up to will catch them later in the week possibly.

Definitely send through whatever number and I'll get in touch might catch ya on coast somewhere from Monday onwards. It's tuesday night now in Prague and we start our journey back tomorrow Wednesday at 1415. Expect to back in chch about 9am Friday. Spark have best coverage followed by Vodafone and then 2 degrees who have improved a lot.

Depends where you are. little town probably earlier than you'd expect. Greymouth should be at least 10pm I would think, that is a guess though.

Yea we are unfortunately limited on 98 in this country. only at BP and not all stations have it. My range is a bit limited at moment as it doesn't appear to want to lean out in cruise properly and haven't been able to figure it out so I'll be very conscious of this. wouldn't think jerry can should be needed, I'd hope the AMG would get you between stations.

Nice even more reason to find you guys when your doing some good roads. Have you got a general idea of route and dates of where you'll be?

You've got my number so send your NZ 1 through when your in country and then I'll figure out when I will catch you guys. Might drive down to meet somewhere depending where you are. Otherwise in Chch we will definitely meet up. What car you got from Qtown?

Well I've got it ready to go so when I get back from overseas and we meet up I can get the thing out.

I'd probably say go that same way I did on the maps but stay in Milford Sound on the way. You could even spend a whole day there and go sight seeing. I'm Jet ski racing in Chch on 9th of Sept also (as long as I get back from overseas in time) and then would be quite keen to join you guys for day trips or whatever is going on at that stage. Hope that helps a little more.

Right so have a 2 day pathway for Queenstown to Chch which could be spread out to 3 days if you wish to stop in lots of places. Uses the West coast road as a path which does have some good corners etc, just don't want to get stuck behind someone and have it ruined of course. Then from Greymouth use Lewis Pass which does take you further North to then end up South and in Chch on the East coast. This then leaves a couple of Day trips which have some nice driving parts to them, 1 is Back towards Greymouth to Lake Brunner (Moana) but on a more direct route with good hill road. 2 is Chch to Akaroa which has a great hill round also. Easy return trips. After that it would be more about going to see something as the roads after all that are pretty damn straight. So in what I have attached: Day 1 525km Day 2 321km Daytrip 1 209km each way Daytrip 2 82km each way Probably a good start to your planning.

Sorry I have my dates way up the s**t. Probably can't do the Accommodation bit as have some students still in here till 15th according to info I have. I should be back in the country from another holiday on 7th of Sept so will look at joining trip but hard to say at the moment. There are a few roads it is about making sure you get to Chch when required. I'll come back to you on that one.