Red Devil mkII - The Journey Continues

[kaanage]

Plus, in Regularity trials you drive to a time, not drive to set a time....

No kidding - that's why I posted I was trying NOT to post a PB but the tyres let me get real close anyway. :p

I probably will try A050R's next time around but since I'm learning, I went the cheaper option since they were on special. I was expecting them to slow dramatically from posts that I'd read (like yours) but I was just pointing out my own experience where at worst, the have a stable plateau (which may be a fair bit worse than when they're at their best)

[seangti]

Thoughts on turbo bolts.

ARP, best fastner brand I can think of?
Caterpillar, 99% of the off road racers built their cars out of these as they are tough-as?
Do what the IP boys do and plain weld the turbo on!

Not sure yet, just spoke with one of the fella's at NA Autosport, they've ordered new studs and gasket. No idea what eact gear yet as the fellow I spoke with isn't the one working on the car. Will know more and share in the next few days.


All good info on the tyres. I have seen the A048R's for mid $200 a corner in 17... but if they fall away aggressively than it won't suit my purpose. I'd sacrifice some out right grip for consistency over the life of the tyre/season.

[Eddy]

Thoughts on turbo bolts.

ARP, best fastner brand I can think of?
Caterpillar, 99% of the off road racers built their cars out of these as they are tough-as?
Do what the IP boys do and plain weld the turbo on!

Hoyhoy.

Stu, & everyone else, I haven't had turbo bolt problems for some time now even with full hard days of tracking.
To start with I didn't weld the turbo on, only welded top plates on the bolts to refrain them from turning.
But like Jmac recently mentioned that along with other mods that I have done, all put together it works fine.
To start with turbo & manifold mounting surfaces all linished, the downpipe surface was shaped like a soup bowl.

Edd's lastest mod. list. - Page 4

To Improve Me Polo. - Page 3

Secondly modified the original turbo to engine block bracket & added an extra one, both of these had upward force placed on them when doing up their bolts.
I'll try to get some pics of these soon.
May be if doing these mods, the bolts don't have to be welded, but I still like the weld.

[seangti]

Thanks Eddy. Just got off the phone from Nick at NA Autosport, they're waiting on a new manifold, apparently the turbo to manifold gasket of an 02 Audi TT will fit, so that's on order (its an aftermarket manifold). The bolts are on the way too. Once it all arrives, they'll check the surfaces are appropriately flat, if not, will address that. They'll also add in the extra bracket that Eddy's referring to to provide additional support to the turbo, and lastly, he's planning to use nord lock washers and probably wire lock the bolts.

No idea what this is going to cost, but should be the last time it happens

Have also asked for a check over of the car for any other track oriented recommendations to ensure reliability.

[seangti]

To Improve Me Polo. - Page 3

Eddy, is that a standard exhaust manifold you're runnng that's been coated?

Update on my car, all the required parts are in, surfaces have been sanded flat, though the ATP manifold has cracked. Gav is sorting me a standard manifold, I'll see if it can been high flowed next week, or whatever is recommended. They found a few other surprises so they'll be addressed to.

I'm hoping to collect the car next friday, to head to Morgan Park on Saturday for a full day of racing on Sunday. This will be quite a test for the car as I haven't completed half a day of driving without an issue, let alone a full day and the 400+km round trip there and back. Baptism of fire... shoudn't mention fire.

[Eddy]

Eddy, is that a standard exhaust manifold you're runnng that's been coated?

Hoyhoy.

That it is.

Edd's lastest mod. list. - Page 4

[seangti]

Hoyhoy.

That it is.

Edd's lastest mod. list. - Page 4

Thanks mate, that'll do the job for me than.

[Paazuzu]

Good luck Sean...I hope this sorts the issue once and for all!!

[Eddy]

Hoyhoy.

O.K. folks here's a couple of pics of the turbo support brackets I done a while back.


The first pics shows in red the extra rib welded to the standard support bracket & in blue the bottom part of the extra bracket.




The second pics shows the extra bracket where the top of the blue is @ the downpipe flange.



Both of these are set up to give extra uplift when doing up the bolts.
May be to understand these pics., ya have to have a good look when upside down & underneath.
Hoping this helps a bit.

[Jmac]

Sorry im booked up and haven't got back, I know exactly why the gasket is blowing again, the inner stud is stretched to buggery, it realy need the turbo off and new stud, you will see it not just a case of fitting bolts or it would have been fixed.
Ah well , hope all goes well
Jmac

[seangti]

Thanks again Eddy. Jimmy, that's exactly what's being done at the moment. I still have the o2 sensor light coming on so will have to catch-up when everything else is sorted if that's ok. I have a copy of the saved code, but as it's the ebay version of vcds, doesn't give much detail.


I went by NA Autosport this morning to drop off the manifolds Gav offered. Their first impression is that it's too small and restrictive for the application I've been learning what I can about manifolds, flow rates, porting, etc, but my head hurts. I've all but conceded in putting the std manifold back on. If it runs well, lucky me, if not, I'll have to do further research to better understand what makes a good manifold. At the moment I don't know enough to be buying anything with any level of understanding of what I'm putting on. I've come this far and am happy to spend the money, but want to know what I'm spending it on first (and don't want the S.O.B cracking).

There's some challenges getting the ATP manifold off, so at least by putting the standard on, should I change over in the future, I will at least be able to reach what I need to get to it. Other than this issue, Nick was of generally high praise for the workmanship, forethought and parts on the car, so that's positive feedback to those who've been involved. Hopefully this thread doesn't read as a 15 page whinge. I appreciate there's little to no prior warning signs for the issues I've had.

Going back to standard manifold, do I need to consider my current ecu tune set-up? Would it be safe to head to the track this weekend or best to scan it first?

He's the crack in the ATP manifold:

[Jmac]

Seen plenty ATP cracks but was at the wastegate to be fair and this can happen many turbos and cause no issue. This is super bad, its a chuck away
Jmac

[seangti]

So the ATP manifolds aren't inherently a poor product? Or it's application dependent? Open to recommendations of manifolds.

[G60ING]

Red Devil mkII - The Journey Continues

A couple years ago when 20V were popular with friends I use to hear about how the ATP manifolds sucked because of nut access and how they would loosen up.

If it's cracking then yes you are screwed, because as I remember their customer service sucks.

Every once in a blue moon an apr manifold gets sold separate from a turbo kit on the vortex.

[Jmac]

Cant agree more with nut access!!!!!! thankfully someone has had the same issue, they are a nightmare to fit and I did this in situ, was a fair while ago I might add. Engine out , piece of Cake
Cheers
Jmac