Thanks to Matthew FabiaTDi and all at Jabba for arranging this morning's rolling road 'shoot-out'

There was a good selection of cars - petrol and diesel Fabia, Octavia vRS's and 4x4's.

I hope that some people will post some photos and plots up here !

Yes indeed. Big thanks to FabiaTDi and Jabbasport for arranging such a good day. Was very good to meet a few faces from here and see what some of the cars were making.

That Ibiza was awsome! 341bhp in such a small car!

:cheers:

Same here,

Here is my dyno - Standard RS with 95 ron petrol ala sainsburys

And the RS going through its paces.

Gunnie was there with his standard RS running on optimax, what suprised me was there was very little if any difference in our dyno plots.

A very enjoyable morning! Good to meet everyone.

Took a slight detour on the way home in search of some twisty roads.

This is my plot which shows the Jabba remap on its own and also with the tuning box. 330nm = about 243lbs/ft.

Cheers everyone!

I agree a good day at Jabba, nice to see their setup and see that they are a knowledgeable friendly bunch.

Also good to see that my car came up as 192 bhp - I see that the optimax give me a 2 bhp advantage over mannyo - got to be worth it;)

Link to my Dyno

Just about worked out how to post my modified (smoothed out the lurchy 4x4 power transfer bits) curves.

So then Manny....... To Jabba-chip, or not to Jabba-chip....... That is the question........

Dave

Dave,

Thats the question. There was also a jabba chipped RS that turned up. Not part of our group, but on the rollers made 232BHP, was very impressed. It had so much torque that when the turbo cut in it started slipping on the rollers. Stuart the guy who's RS it was reckoned it was proberbly because the tyres had only been on a few days and where therefore too new.

Mike said that he can adjust the way the overboost comes in depending on how much throttle you have applied at the time. eg. little throttle like when driving round town = gentle boost and Full throttle = max boost in upto 10 different stages. Aparently the skoda default program gives max no matter how much throttle you have applied. I was very impressed with the way things went and he seems to know his stuff.

Mike also said that at the moment it's about a 5 week wait. Unless of course you can get a cancellation

Hmm so if these plots are right , firstly , most vRS' seem to be putting out around 190BHP as stock , and secondly Optimax gives you 2BHP! Its hardly worth it so methinks I will be reverting to 95 octane most of the time!

Looks lke you guys had a good time.

so if these plots are right , firstly , most vRS' seem to be putting out around 190BHP as stock , and secondly Optimax gives you 2BHP! Its hardly worth it so methinks I will be reverting to 95 octane most of the time

190bhp as stock:eek: I thought they were supposed to be 180? Also confirms my thoughts that optimax gives very little extra.

232bhp RS sound a bit mental:drive1:

My thoughts on Optimax exactly. My 4x4 plot above was running on normal unleaded.

It confirmed what I thought when I had my Impreza - if you want to use SUL, use BP or Esso.

In fact I've just filled up with Safeways as they're doing 10ppl off if you spend

a bit late with post but i really enjoyed the day & meet a few of the faces behind the names. thanx to jabba who proved again what professional crew they are:) . well chuffed with the results as i,d gained some 5 bhp (232) over the plot 3 weeks ago(227). i,m putting it down to optimax fuel if only to justify the extra cost.

btw i understand there was a meet at coventry, be interesting to know how it went.

many thanx to jabba & matthew

best regds ect:cheers:

Fabpreza

If I read your dyno plot correctly, torque doesn't start increasing significantly until 2600 rpm, with max torque being available from 3100 rpm until 4700 rpm. From memory, an untuned engine gives max torque from 1750 rpm to 4600 rpm. I like having max torque at relatively low revs and would be interested to know how differently your car drives with the torque coming in at higher revs. Could you have had the car tuned so that max torque occurred at lower revs? If so, why did you opt for that torque curve? Just curious...and more than a little envious.

PS I once had a Lotus Elan S2 which needed the front wheels balancing on the car. To get the balancing right the wheels needed to be spun up to 100+mph a number of times, and by the end of the process a significant amount of tread rubber was scrubbed off braking the wheels with a steel plate pushed against the tread. Which leads me on to my questions: Does tuning a car on a rolling road result in significant wear and tear on tyres, and does it put any miles on the odometer?

Denis

Jabbasport (/Mike as he is the expert) are happy to talk with you about your ideal characteristics, as they normally have an ECU 'template' with about 70% of the work done for each model Octavia, and the rest is down the individual car and preferences.

For mine, the car drives absolutely normally at low revs - the graph is misleading as even at lower revs you still have more torque than before ( ie approx 230 v 210Nm), it's just that it 'takes off' after that up to 310Nm. Having had cars chipped before, I mentioned to Mike that I preferred mid-range to top end power, and would normally used normal unleaded fuel. On saying that, if you use higher octance fuel - Dave/ect's - has been Jabba'd also, you can reach some truly superb figures - eg. 232 bhp. From a 4x4 owners' viewpoint, the stealth factor should add a few more bhp on the road as well !

By the way - do you happen to know the conversion factor between lb/ft and Nm ?

Strange you mentioned the rolling road bit, as one vRS was slipping on the rollers because the tyres were new and they had to keep spray coating them !

Originally posted by Fabpreza in this post

By the way - do you happen to know the conversion factor between lb/ft and Nm ?

I use the VW TDI Club's handy converter which is in our web links here.

That's handy, thanks. 228lb/ft - Good enough.

must agree with you rob on the stealth factor , as mentioned on the day i want to keep my 4x4 looking as standard as possible. i have received a few ..thumbs up ... from drivers of more sporty/racer type cars who found they bit off more than they could chew:)

best regds ect;)

Originally posted by ect in this post

must agree with you rob on the stealth factor , as mentioned on the day i want to keep my 4x4 looking as standard as possible. best regds ect;)

Yes, it's a good feeling to know that you normally have the element of surprise up your sleeve :1: The Impreza had many plus points but never that one

Typical example yesterday evening - new shape A4 1.8T comes literally screaming up behind me on a single carriageway in traffic, pushing me with nowhere to go (you know the scenario).

- We both turn right at the roundabout - Audi inches behind and

hugging the roundabout edge.

- As we join the dual carriageway, the Audi hangs off the RHS

of my car. (Something like 'pesky' Octavia is said in the A4)

- I floor it in second and there is a momentary look of shock as I

look in the mirror- this then disappeared as fast as my car.

- You could tell the guy was trying as he stayed in the outside lane as I moved over (no traffic around), but what's 200 yards

between cousins ? :p

Originally posted by DGW in this post

Fabpreza

If I read your dyno plot correctly, torque doesn't start increasing significantly until 2600 rpm, with max torque being available from 3100 rpm until 4700 rpm. From memory, an untuned engine gives max torque from 1750 rpm to 4600 rpm. I like having max torque at relatively low revs and would be interested to know how differently your car drives with the torque coming in at higher revs. Could you have had the car tuned so that max torque occurred at lower revs? If so, why did you opt for that torque curve? Just curious...and more than a little envious.

D, FabRob's plot roughly equates to what Oettinger deliver with their rechip.

Whereas the standard car delivers equal torque all over the rev range, up to about 5000rpm, the Oettinger torque sharply rises between 2000 and 3000rpm, flattens out between 3000 and 4500rpm and then drops again, but maintaining its performance gap with the standard torque value. This way, you will feel a bigger thump between 2000 and 3000rpm, while the car will keep on pulling on torque up to 4500rpm.

The power curve follows the standard curve but is a lot steeper and tops out at 6000rpm instead of 5500rpm. In all, it really fits my requirements.

BTW, apart from power and torque curves, did the lot of you also go for some measured acceleration tests?

Originally posted by Fabpreza in this post

My thoughts on Optimax exactly. My 4x4 plot above was running on normal unleaded.

You don't mean the 91 RON stuff, do you? :eek:

Mine won't even tolerate 95!

Oops, forget that I said that - only just now read the 4x4 fuel consumption thread quoting 95 RON.

So what we call 'euro', you call 'normal'. Our 'normal' is, or rather used to be, 91 RON (they don't sell the stuff anymore, but I heard they still do in other countries).

Dutch

Many years ago in the UK you could get 2 , 3 , 4 and 5 star leaded petrol , although I have no idea of RON ratings for the lesser petrols if i remember correctly 5 star was 101 RON and 4 Star was 98. When unleaded came out (in the late 80s) , im pretty sure it was 95 ron from the start , so I wonder if this 91 ron stuff was some kind of 2/3 star alternative?

Originally posted by Dutch4x4 in this post

D, BTW, apart from power and torque curves, did the lot of you also go for some measured acceleration tests?

We didn't, but it would be good to do some scientific timing at say a Skoda-only track day, with the right piece of kit.

I have spent some time working out the speedo error (which was suprisingly only 4mph /6.5kmh out at 100mph/160kmh) and did a few stopwatch timings to the 'true' speed but that was really for my own benefit.

Skoda only airfield track day - anyone listening ??!:drive1:

Originally posted by Fabpreza in this post

Skoda only airfield track day - anyone listening ??!:drive1:

This sounds like a great idea! Wonder how you go about hiring out a track or air field for a day. Would be fun finding out what all the cars could do.

Then someone should get hold of a drag-racing type 3D G force measuring device... It will measure acceleration and wheel torque with painstaking accuracy