Red Devil mkII - The Journey Continues

[VWindahouse]

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

Yes it's a big regret putting Jimmy thru that hell without warning but I had no idea tbh. Sorry again Jimmy

Sean sorry bud I was not aware the mani had cracked as Gav will attest there were never any symptoms to show that but then again I never went harder than 20mins at Happy Laps. Will your EGT's go crazy high with the stock mani? Hell yes and dangerously so from the research I've done (mainly from vortex) as in glowing red hot - no bull. I know it's more coin but please consider a second Gen JBS mani and get it coated with the black ceramic the exhaust is done in or something similar.

[seangti]

Thanks Anthony. Yeah there's no way of telling before this stuff breaks. I will be looking into other manifolds and learning about them so I know what the go is. If it means de-tuning for the meantime to keep it safe, so be it. Hopefully with the standard mani in place it won't be half the task to replace it in the future.

Assuming I get the back today, do I run a risk in running the car this weekend without changing the tune?

[h100vw]

I/you can pull the boost back with the VCDS cable and unisettings. Can't measure EGTs or anything obviously but you can do a few hard laps then, pull off and see how the manifold looks.

Gavin

[seangti]

I/you can pull the boost back with the VCDS cable and unisettings. Can't measure EGTs or anything obviously but you can do a few hard laps then, pull off and see how the manifold looks.

Gavin

righteo. Last time I tried the unitronic software didn't allow me access. I can't recall the error code, will try again tonight.

[h100vw]

righteo. Last time I tried the unitronic software didn't allow me access. I can't recall the error code, will try again tonight.

Call me when you are trying it. In work from 7, so anytime is good.

GAvin

[seangti]

Pretty hectic weekend of car stuff. Picked up the car friday night. Standard manifold on with nord lock washers and lock wired bolts, gaskets, etc. It ain't going anywhere now. The car was initially over boosting to 25psi, found it to be the vacuum line was off the wastegate. Geez I want to run 25psi, it hammered, came on boost very early and hard. Anyway, back to "slow spec" 20psi now.

Ran out to Morgan Park, Warwick, yesterday afternoon to do a Paul Stokell event today. Was on the street tyres as it was meant to be a training event, though was more so like an open circuit session, with access to trainers for a few laps. Did a 1:36.06sec of the large track on my GPS laptimer, not particularly impressive, but given the heat (33-35c day), tyres and not chasing a lap time I'm ok with that. Only issue was breaking an exhaust mount in the 3rd session, just after the dump pipe, rattling like a mofo. Did the 4th session, packed up and drove it home. I didn't have car stands with me so wasn't going to get under it. Will deal with that next weekend.

Good times.

[grandturismo]

Good times alright. The car seemed to go really well other than that exhaust mount. Did that rattle in the pillar disappear?

[seangti]

Good times alright. The car seemed to go really well other than that exhaust mount. Did that rattle in the pillar disappear?

Not sure about that rear rattle, couldn't hear anything over the exhaust bracket rattling, lol. Glad I carry ear plugs with me.

Did you end up putting stiffer rear springs in? You sort that through Ken at Accurate? Any feedback?

I had Paul Stokell co-pilot for a few laps, his feedback was to stiffen up the rear sway bar to dial out some understeer (along with putting in an LSD). I feel the understeer was more pronounced at Morgan than I've experienced recently at Lakeside, perhaps primarily the tyres, but could also be the slower corners. Front downforce wouldn't go astray either.

Will have to get back to Morgan Park in the cooler months.

[Jmac]

Nordlocks? Geez that's a good idea

[kaanage]

I had Paul Stokell co-pilot for a few laps, his feedback was to stiffen up the rear sway bar to dial out some understeer (along with putting in an LSD). I feel the understeer was more pronounced at Morgan than I've experienced recently at Lakeside, perhaps primarily the tyres, but could also be the slower corners. Front downforce wouldn't go astray either.

You can run with a "looser" rear end at a slower track to help it point but it can get scary very quickly at a track with fast sweeping bends. I don't know much about Morgan Park but it doesn't look like you'd be going fast enough to get much downforce without a huge splitter.

LSD? Yeah, we all want one (except Eddy since he has that covered)

[grandturismo]

Red Devil mkII - The Journey Continues

No stiffer springs as yet. Definitely will consider it in the near future. There's a few things I can adjust and play around with before I go spending more money though.

Interestingly, I had a lot more understeer happening at MP, but most of that I can put down to bad driving but I do think reducing the front ride height a bit and possibly increasing rebound damping at the fronts may help. That was my thought process anyway, but I'll have a chat with Ken and show him some video. He'll probably tell me to stop over driving and hit the apex

Do you have sway bars? I'd check the fronts are fairly stiff first that should help.

[Eddy]

Hoyhoy.

Ya have to set it up so it has over steer on cold tyres. (stiffen the rear)
I change the rear sway bar setting for the track, I have the front 24mm front set up to the stiffest all the time.
Even then you will still get plenty of under steer once when warmed up, when going hard, especially with slower corners.

P.S. Sorry Greg, I know ya once said that swerving to heat up the tyres (rear ones) was a waste of time, but I find it necessary to get the faster times.
I may be wrong, but I find this does help heaps..

[kaanage]

Stiffer front anti-roll bar => more understeer, not less, gt.

FWD will alway understeer on exit of slow turns - that's just a fact of life if the car to be at all balanced for entry and mid-corner.

Eddy, I reckon you're warming yourself up, not the tyres whilst weaving around. You may also be scrubbing off pickup from the previous session but tyres need sustained loading to generate any significant heat. Unless you're out to get best times in the 2nd lap of a session, I don't see warmup weaving providing any overall benefit.

Here's a test done with bikes to try and measure the effect. A car is much heavier but also wears bigger tyres and more of them to distribute the weight. Tire Temp. and Weaving

[grandturismo]

Red Devil mkII - The Journey Continues

Stiffer front anti-roll bar => more understeer, not less, gt.

FWD will alway understeer on exit of slow turns - that's just a fact of life if the car to be at all balanced for entry and mid-corner.

Eddy, I reckon you're warming yourself up, not the tyres whilst weaving around. You may also be scrubbing off pickup from the previous session but tyres need sustained loading to generate any significant heat. Unless you're out to get best times in the 2nd lap of a session, I don't see warmup weaving providing any overall benefit.

Here's a test done with bikes to try and measure the effect. A car is much heavier but also wears bigger tyres and more of them to distribute the weight. Tire Temp. and Weaving

Yep you're right.
I was trying to say perhaps tweak the stiffness to an even level that suits the vehicle before adjusting for understeer or oversteer. Having said that probably best to soften first to correct.

[seangti]

It's got adjustable sway bars front and rear. The front is on the softer setting, the rear sway bar is in the mid section. On the semi slicks and at lakeside, understeer hasn't been much of a consideration on this set-up. When I do QR next I will stiffen the rear to see how that feels. I'm somewhat reluctant to stiffen the rear much at lakeside as I'd prefer to not go backwards under the bridge should it get overly twitchy. I'm still working up to full throttle through that section, I'm lifting a bee's whisker before tipping in, but once committed it's on the floor boards.

In saying all this, corner entry at high and low speed is quite adjustable and playful, just trying to get power to the ground on the tighter stuff, e.g. morgan park coming out of the esses on to the straight was more pronounced than i'd experienced to date. Perhaps I should have ran the semi slicks as I doubt the understeer would be as prevelent.

All good fun hey.