GTI Edition 40 / Clubsport Thread

[urxtream]

A BMW 335i tried to race me in my GTI40 (with JB1) today and guess what happened?


We stopped next to each other at the next set of lights and we both wound down our windows.


BMW: Is your car stock?
Me: Nope, it's tuned. I've got X HP and X Torque
BMW: No wonder!!


He must have thought that I was in a standard GTI / a stock car. The moral of the story? Don't mess with little GTIs especially the 40th Anniversary Edition 😎

[ringo]

Should have answered yes, lol. But seriously the 335i is no speed freak really. It's on par with a stock Clubsport in in-gear accelerations: 60-160km/h in ~9s, 100-200km/h in ~14s, these are the times I was logging before putting the JB1 on. With the JB1 the CS will now do 60-160 in 7.5s and 100-200km/h in 11.5" which is almost RS3 quick so it must have been quite easy to leave him behind. Problem is he can also put a JB1 on his BMW . In fact the CS's 100-200 time could be in the mid 10s if it wasn't for the stupid overboost feature that cuts outs after ten seconds of WOT (maybe possible to completely bypass it with JB4 but need to speak to George about it).

Here's a 100-200km/h sprint of a CS JB1:

https://www.youtube.com/watch?v=JP15hSO4n4U

[urxtream]

Should have answered yes, lol. But seriously the 335i is no speed freak really. It's on par with a stock Clubsport in in-gear accelerations: 60-160km/h in ~9s, 100-200km/h in ~14s, these are the times I was logging before putting the JB1 on. With the JB1 the CS will now do 60-160 in 7.5s and 100-200km/h in 11.5" which is almost RS3 quick so it must have been quite easy to leave him behind. Problem is he can also put a JB1 on his BMW . In fact the CS's 100-200 time could be in the mid 10s if it wasn't for the stupid overboost feature that cuts outs after ten seconds of WOT (maybe possible to completely bypass it with JB4 but need to speak to George about it).

Here's a 100-200km/h sprint of a CS JB1:

https://www.youtube.com/watch?v=JP15hSO4n4U

Yeah I should've told him my car was stock lol. I'm still on the fence whether or not to upgrade the JB1 to JB4. Let us know after you speak to George

[ringo]

Yeah I should've told him my car was stock lol. I'm still on the fence whether or not to upgrade the JB1 to JB4. Let us know after you speak to George

As I understand it it needs tampering with some wire and because my intention with this car is to leave it 100% stock (or so I still say), without a single screw (or wire) modified I have abandoned the idea of upgrading for the time being. This is regardless of whether it actually bypasses the overboost or not for which I'll speak with George anyway.

[MIRSAD]

After 7 months and 8855km this:


Unusual....inspection - 10,000km
Service schedule is talking Inspection - 30,000/2 years

[Bundy]

Can anyone explain how to invoke the overboost function? I have read around the place that you simply push the pedal all the way and it should kick in from 3rd and above in 10 second bursts but according to the performance interface the car appears governed never to overboost beyond 195kw?

Has anyone actually seen there 40ED performance interface go over 195kw? If so do you have a picture to share?

[wraith666]

Can anyone explain how to invoke the overboost function? I have read around the place that you simply push the pedal all the way and it should kick in from 3rd and above in 10 second bursts but according to the performance interface the car appears governed never to overboost beyond 195kw?

Has anyone actually seen there 40ED performance interface go over 195kw? If so do you have a picture to share?

Everything I have seen indicates it only shows 195kw. No one seems to know why.

[Bundy]

Thanks for responding, I kinda feel gipped with all the overboost function talk and no one actually having been able to invoke it. Does anyone have contacts into VW? Can we try and get some sort of dialogue happening on this topic with the manufacturer?

[ringo]

Thanks for responding, I kinda feel gipped with all the overboost function talk and no one actually having been able to invoke it. Does anyone have contacts into VW? Can we try and get some sort of dialogue happening on this topic with the manufacturer?

I don't think you should stress over it. The CS has been measured on the dyno and makes 290-300bhp with the over-boost ON (I have a couple of CS dyno graphs if you're interested and they are all above 290) but even then the gauges were showing 195kw according to the guys that did the measurement so not to worry.

It's an inaccurate indication anyway (the one about power) it's not directly measured as, say, the boost pressure.

[Bundy]

I don't think you should stress over it. The CS has been measured on the dyno and makes 290-300bhp with the over-boost ON (I have a couple of CS dyno graphs if you're interested and they are all above 290) but even then the gauges were showing 195kw according to the guys that did the measurement so not to worry.

It's an inaccurate indication anyway (the one about power) it's not directly measured as, say, the boost pressure.

Thanks Ringo, that is the type of confirmation I was wanting? Please do share the dyno graphs the more information the better I say.

[veeby]

GTI 40 years front lip

Hi, does anyone know where I can get the front lip for the GTI 40 years? Just the black bit on the bottom of the front bumper.

I have a really steep driveway and always scrape the bottom of it.

Just wanted to know the cost to replace and where I can get one.

Cheers

[ringo]

Thanks Ringo, that is the type of confirmation I was wanting? Please do share the dyno graphs the more information the better I say.

Here's one just full throttle and overboost on I suppose:

https://www.youtube.com/watch?v=RvDVLKtFb8I&index=14&list=PL1gJICZyZQfx86rXvBOBCsZUJMOArU8tY

And another one with overboost on (continuous) and off (dotted) plots from Burger Motorsports, the difference is less than expected between on and off:

[Kidmccoy]

Why not check with few dealers to find out the price and compare or get it patch up and respray.

[Bundy]

Here's one just full throttle and overboost on I suppose:

https://www.youtube.com/watch?v=RvDVLKtFb8I&index=14&list=PL1gJICZyZQfx86rXvBOBCsZUJMOArU8tY

And another one with overboost on (continuous) and off (dotted) plots from Burger Motorsports, the difference is less than expected between on and off:

Cheers Ringo for the share of intel!!! Would have been nice to have an performance interface that reflects what is actually being captured!!!

Now for a science question for the privy machine heads -> 3rd gear flat to the floor from lower entry revs and speed for maximised torque and output OR enter into the 3rd with as much air intake as possible so redlining 1st and 2nd to get the respective overboost function to invoke?

[ringo]

Cheers Ringo for the share of intel!!! Would have been nice to have an performance interface that reflects what is actually being captured!!!

Now for a science question for the privy machine heads -> 3rd gear flat to the floor from lower entry revs and speed for maximised torque and output OR enter into the 3rd with as much air intake as possible so redlining 1st and 2nd to get the respective overboost function to invoke?

If you mean how to invoke it, I think the only condition is foot hard down as if you're trying to punch a hole through the footwell (which feels bad actually) and that's it (provided you're in 3rd gear), OB should kick in in both cases.

I tend to avoid the low revs scenario as its harder on the turbo and clutch (old habits) and try to request the power more linearly from earlier gears. I also try to avoid short shifting around 5K with foot down for the same reason (clutch) but the exhaust pops at exactly this condition is so tempting...