What did you do to your Polo today?

[sambb]

My turd non genuine vag cable won't let me look at fuel trims other than the +\- O2 sensor reading on group 001 of vag. So what I always do is check for timing pull and throttle plate cut in vag com and check fuelling with hardware up the tail pipe. You're right you find interesting things. For example a 3rd gear pull for me may show no timing pull but some throttle cut to 98%, but logging an actual simulated hillclimb through all gears over say 1min may show up patches of timing pull after gear changes but zero throttle cut. Don't just log on a flat runway, log how you normally drive. Really who mashes the throttle at 1800rpm in third. That alone can,t be used to represent all that goes on inside that engine.

[seangti]

My turd non genuine vag cable won't let me look at fuel trims other than the +\- O2 sensor reading on group 001 of vag. So what I always do is check for timing pull and throttle plate cut in vag com and check fuelling with hardware up the tail pipe. You're right you find interesting things. For example a 3rd gear pull for me may show no timing pull but some throttle cut to 98%, but logging an actual simulated hillclimb through all gears over say 1min may show up patches of timing pull after gear changes but zero throttle cut. Don't just log on a flat runway, log how you normally drive. Really who mashes the throttle at 1800rpm in third. That alone can,t be used to represent all that goes on inside that engine.

That issue re fuel trims isn't the cable, it's because you're on the shareware version of vcds. Buy the Lite version and it'll become available, or get ME7 Logger and a huge amount more data.

Yeah I hear what you're saying about the full throttle runs, given your input is throttle percentage, WOT is relatively easy to tune for, it's everything in between that creates the challenge for tuners.

[rgvlee]

Took the pogo to the track friday afternoon
Hammered the **** out of it!
Highlights included reeling in everything except for a targa wrx sti
Remsa, dba t2s and rbf600 held up well, no brake fade

Will need new tyres before collie trackday in oct, if I can pick up a reasonably priced spare set of 17s I'll look into a decent track tyre for the 16s
Also looking into buying a schroth quick fit 4 point harness, I think this will make a big difference as I couldn't stay planted in the seat

[seangti]

Also looking into buying a schroth quick fit 4 point harness, I think this will make a big difference as I couldn't stay planted in the seat

I'm yet to be convinced that a harness on a standard seat can be done safely. It's either all or nothing and the lap sash has proven to be the next best thing to a full harness. On the Schroth setup, there's risk of spinal compression, the rear of the seat collapsing, etc. Certainly run a HANS if you try this approach - not running a HANS with a harness would be much more dangerous during an impact. A fellow died at lakeside about 2yrs ago from a low speed impact, wearing a harness but not HANS and the impact severed his spinal cord in his neck. Lap sash he would have been ok/injured, but not dead.

I have a GC Lock - CG-Lock Performance Add-on for your Seat belt. It works sufficiently, though I think better for a larger framed person as I'm quite skinny, my hips sit back in the seat nicely but it doesn't help much for upper body. I think I have a spare one I could sell you. I bought 4 at the time and one mate pulled out.

[rgvlee]

A HANS would be optimal and I will look into it. The pro supports it.
I'm going to check out a racing seat as well.

Of course the more you invest the more you are likely to get a better result when it goes tits up.
I think the risk is low for what I am doing, the tracks that I am racing at and the budget that I have to apply.
Harnesses have been used for a long time before anyone was thinking about HANS devices.
I would imagine most guys, just like myself, just use a motorcycle helmet for trackdays as well which isn't optimal. Yet it's allowed and we still do it.

In the lakeside example the guy hit an earth embankment.

[sambb]

For a seat belt lap tension holder, I used one of those clam shell clasps that you get with kids car seats for holding the belts tight in much the same way. Works perfectly at least for keeping your hips locked in.



Just did the Ringwood hillclimb again on sunday on the new two lap circuit. Was torrential rain and lightning on the way up from sydney - nearly turned around at one stage. Turned out to be really worth it though. Was bucketing for first two runs and I was actually sitting in 4th overall for a bit till it backed off to a sprinkle and guys started getting their semi's to work. All the quickest runs went in on the 4th run when it had stopped raining for a bit and that shuffled me down big time. Main thing was that my times kept improving (see the last image), and that I managed to stay ahead of lots of type 2's and up cars while still on street tyres.
The handling balance was bang on for the wet, dependable and really adjustable and the RE003's were unbelievable - actually squealing in the wet and way more forward grip than the dunlop sport maxx r/t's I'd had. Softer sidewall than the dunlops so they wouldn't last long on a patchy/damp track I don't think.
really happy with the car and that I kept it off the trees!

[rgvlee]

As an aside, for the quick fits schroth state

These belts are only approved for use in the designated
VW-A-S-S models in conjunction with the factory provided
seat and factory provided DOT mounting points. This belt
must not be used if either the seat and/or the factory
mounting locations or mounting hardware have been
changed or modified in any way. SCHROTH approved after
market seat may be used in place of the original OE seat.

The 9n polo appears in the list.

[seangti]

As an aside, for the quick fits schroth state

The 9n polo appears in the list.

I'll do more research into this "option" as I'd like the extra support, just want to make sure I'm opening myself to increased risks elsewhere. Will probably go a bucket seat once the car has proven reliable, which would negate some of my concern re spinal compression as the holes to run the straps through are above shoulder height. If you're upper body is taller than your seat back, you're in compression when locked in.

[h100vw]

I'll do more research into this "option" as I'd like the extra support, just want to make sure I'm opening myself to increased risks elsewhere. Will probably go a bucket seat once the car has proven reliable, which would negate some of my concern re spinal compression as the holes to run the straps through are above shoulder height. If you're upper body is taller than your seat back, you're in compression when locked in.

You could easily do something with the headrest posts to alleviate that Sean. Didn't you make a camera mount. Even a block of wood with 2 holes in would hold the belt up.

[seangti]

You could easily do something with the headrest posts to alleviate that Sean. Didn't you make a camera mount. Even a block of wood with 2 holes in would hold the belt up.

But bucket seat is cool

Beyond coolness, running a harness over them is beyond their engineered intent and the direction of the loads that would apply in the usual course of an accident. i.e. seat backs aren't engineered for the vertical force that running a harness over the top would induce. I don't know, perhaps just call me paranoid, or uneducated

[rgvlee]

There is a lot of 'internet' consensus about using harnesses with HANS and a racing seat.
There are also opinions about only using a HANS in a car with a cage (where with no cage there is the potential issue of it doing more harm than good in a rollover).
I've read a couple of articles from manufacturers saying that it's ok to use the harnesses with stock seats provided certain criteria are met. The gti seats meet these requirements.
I'm ask more when I catch up with the distributor tomorrow. Either way I think you've at a minimum convinced me to get the quick fit pro so I can run HANS either now or later. It can be converted to a 5pt easily as well.
I have looked into the cg lock before but I would like the upper body support as well.

[h100vw]

I'd be all over a bucket seat for sure but in the interim, surely a real harness can't be worse than just a seat belt?? I'd even go to the trouble of stripping the seat apart to bend in the wings on the backrest to remove some of the slop. Probably better than eating maccas non-stop until christmas to get the same effect.

Gavin

[h100vw]

Lee, where are you looking for the Schroth quick fit mate? Somewhere in Australia?

[rgvlee]

The Aus distributor, performance race gear, is in Perth funnily enough.

[rgvlee]

Standard seat, pro version

Still working with Aus distributor
I think the standard will be somewhere around $300 and the pro about $400