Indeed you did. How on earth others have interpreted that as anything to do with political correctness is beyond me! I too am extremely interested in Mike & Sharks efforts (beats East Enders any day!) and thought about raising the point again around warranty issues arising if there is an engine management problem (fully accepting it is likely to be nothing to with Shark) and the dealer sees that degree of tampering. That could end up being really expensive! If the ECU box needs to be heated to open it up will that subsequently allow ingress of moisture that the sealing was designed to keep out?

As I say, I was going to ask because I am genuinely interested in knowing others' views but I'm afraid of being called a heretic

I think I'll let Ben answer those questions....

I am not worried about warranty. It's an automatic....How can I stress the engine/gearbox? Provided the map is within the gearbox limits, which it is, then there should be no problem.

There is no point in hiding the fact that it has been remapped. All Skoda has to do it put it on their machine and check the ECU checksums and it will tell them that it has been tweaked. As Ben ground the heads of the tamperproof screws, it will make it easier for Skoda to do anything to the ECU if it has a problem.

Anyway, the bit you've all bee waiting for....

Much more oomph... motorway acceleration now happens. Definitely faster accelerating.

fuel consumption reached 48mpg at one point on the way home. Then I was forced to stop due the M40 being closed due to an accident. About 30mins later I was off. The acceleration is definitely quicker. The wind increased, the temperature increased and the air con came on from 1deg to 10degs. I was also driving the car faster on the way home. It dropped to about 43.5mpg on the way back. On the way up it was about 42.9mpg, so slight improvement, not as much as I was hoping for. The weather was awful, but consistently worse on the way home. I does feel like it is more fuel efficient. Time will tell. It is not worse, even though I used the power much more than normal

So far I'm happy. On my local dual carriageway, up the A22, from the M25 round Caterham, is quite a steep incline. Flat out acceleration unto 70mph then back off, the car changed to 6th, which it never did before. That is the gearbox learning that it now has about an extra 120Nm torque. Power is around 180/185bhp according to Ben.

Mike

Excellent news.

Kind of what I was expecting on the acceleration front. Is the bhp up to 180 ish? I wouldn’t expect much change to MPG though. I notice the yeti is not listed on the shark website but presume the 140bhp engine is standard throughout the range.

Have been considering a remap myself, I didn’t understand what was involved though as I read that there is no bluefin type plug in remap for the new CR engine so the CPU has to be opened up. Many thanks for the pics that’s very educational.

Does anyone know if the the 170 yeti variant have bigger brakes to cope with the extra power.

Excellent news.

Kind of what I was expecting on the acceleration front. Is the bhp up to 180 ish? I wouldn’t expect much change to MPG though. I notice the yeti is not listed on the shark website but presume the 140bhp engine is standard throughout the range.

Have been considering a remap myself, I didn’t understand what was involved though as I read that there is no bluefin type plug in remap for the new CR engine so the CPU has to be opened up. Many thanks for the pics that’s very educational.

Does anyone know if the the 170 yeti variant have bigger brakes to cope with the extra power.

Yes the 170's are bigger. See the brake guide in the technical section for more info.

Mike

Yes the 170's are bigger. See the brake guide in the technical section for more info.

Mike

+ 1.

The CR170 gets the same 312mm front discs as the Octavia vRS. This is a unique fit for Yeti as, somewhat surprisingly, the 1.8 TSI160 has the same 288mm discs as all other Yeti.

I think I'll let Ben answer those questions....

I am not worried about warranty. It's an automatic....How can I stress the engine/gearbox? Provided the map is within the gearbox limits, which it is, then there should be no problem.

There is no point in hiding the fact that it has been remapped. All Skoda has to do it put it on their machine and check the ECU checksums and it will tell them that it has been tweaked. As Ben ground the heads of the tamperproof screws, it will make it easier for Skoda to do anything to the ECU if it has a problem.

Mike

Thanks for the feedback Mike, for the avoidance of doubt I'm 100% behind you and indeed considered the same for my CR170 when it arrives, so especially interested. :yes:

I'm not suggesting in any way that the engine or gearbox will be damaged by the work but simply that engine problems do happen (I had a woeful state of affairs with my VW Touran) and I would imagine as soon Skoda see tampering they could prove very difficult around some engine related warranty issues. Of course I really hope that's not the case but I'm probably just too risk adverse to take that chance, I know from speaking with a Skoda technician a while back that Skoda have in the past asked technicians to look for potential tweaking when undertaking routine work - they would not routinely run a checksum of the ECU so the more conventional forms of tweaking would be less likely to be spotted. To be honest I cannot see Skoda trying to fix an ECU, especially one that has been tampered with- they are more than likely to demand that it be replaced, £686.40 incl 20% VAT.

I know that sounds like I'm against the tweaking, I really am not - I am an ardent fan and have been for years but tended toward the less visible forms such as Bluefin which I appreciate is not possible on the current range of engines. I'm just trying to sound a word of caution lest we all get carried away on a wave of performance euphoria and some may not be fully aware of the potential pitfalls. But I truely hope you have absolutely no issues whatsoever and have many happy 'economical ' miles ahead of you.

Thanks for the feedback Mike, for the avoidance of doubt I'm 100% behind you and indeed considered the same for my CR170 when it arrives, so especially interested. :yes:

Ben's already done several CR170's

Mike

Mike, do you know what kind of torque is cranking out now? 420-440NM would be my guess?

Mike, do you know what kind of torque is cranking out now? 420-440NM would be my guess?

So far I'm happy. On my local dual carriageway, up the A22, from the M25 round Caterham, is quite a steep incline. Flat out acceleration unto 70mph then back off, the car changed to 6th, which it never did before. That is the gearbox learning that it now has about an extra 120Nm torque. Power is around 180/185bhp according to Ben.

Mike

Hope that helps (320+120Nm = fun & higher gears)

Edited 8 January, 201115 yr by rockhopper

Mike,

How's it feeling a couple of days later?

I realise it's a stupid comparison but a Ferrari 360 only produces 373Nm of torque....

I realise it's a stupid comparison but a Ferrari 360 only produces 373Nm of torque....

But significantly more horsepower....

Hope that helps (320+120Nm = fun & higher gears)

So you are reckoning 440Nm; that's a 37% increase. Pretty healthy.

Of course this is entirely possible because, as far as I have been able to work out, the CR140 has the same mechanicals as the CR170 (whereas there were notable differences between the PD140 and PD170).

This therefore perhaps means that it might be possible to take a CR140 straight to the level of a mapped CR170 i.e. 200-205bhp and 415-420Nm (ish).

Mike,

How's it feeling a couple of days later?

Fast............

I have to be mindful of the throttle when moving off as it has much more low down.

It's been a little icy to try anything but overall it does feel much livelier

I hope to get out in next few days for more of a play at some point, but been feeling a little under the weather, so not been doing much.

Mike

So you are reckoning 440Nm; that's a 37% increase. Pretty healthy.

Of course this is entirely possible because, as far as I have been able to work out, the CR140 has the same mechanicals as the CR170 (whereas there were notable differences between the PD140 and PD170).

This therefore perhaps means that it might be possible to take a CR140 straight to the level of a mapped CR170 i.e. 200-205bhp and 415-420Nm (ish).

Without a back to back it would be hard to say, but as ever, the limiting figure with the DSG wet gearbox is 450Nm, so Ben keeps the torque a little below it.

What disks have you fitted/are fitting - genuine ones? and have you had to replace the callipers as well?

Mike

I realise it's a stupid comparison but a Ferrari 360 only produces 373Nm of torque....

I don't think Elsie will keep up though

Mike

So you are reckoning 440Nm; that's a 37% increase. Pretty healthy.

What's that in real money? About 325 lb/ft ?

Without a back to back it would be hard to say, but as ever, the limiting figure with the DSG wet gearbox is 450Nm, so Ben keeps the torque a little below it.

Good to know the limits.

What disks have you fitted/are fitting - genuine ones? and have you had to replace the callipers as well?

Mike

I've had OEM 312mm discs (as opposed to 288mm) fitted, as used on the CR170 Yeti and both current Octavia vRS.

Callipers and Pads are the same but you have to change the calliper carrier (it needs to hold the calliper 'further out' to accommodate the bigger discs). I also took the opportunity to fit Ferodo DS2500 pads that I've had in my previous three cars to good effect.

Its quite a simple job and not too expensive job. I am now looking to sell the unused OEM 288mm discs & pads as here;- http://briskoda.net/forums/topic/186718-set-of-new-front-brake-discs-and-pads-for-octavia-ii-or-yeti/ to offset the cost.

However, I doubt the OEM carriers are of any use to anyone and they were the most expensive part! :S

Another thought on the remap - the torque according to Ben just climbs all the way to the red line, there is no flattening off of the curve, and it did feel like that when we test drove it. Just constant brisk acceleration.

Maybe I should go on the south east rolling road day on the 30th January and see what it is cranking out.........

Mike

Would be good to see some figures, certainly

Maybe I should go on the south east rolling road day on the 30th January and see what it is cranking out.........

Are they able to do a 4x4? I though most rolling roads were 2WD only.

Are they able to do a 4x4? I though most rolling roads were 2WD only.

I have been informed it is a 4WD RR. My link

If Johann would come along with a standard DSG, my remapped DSG and Kevin with no DPF and remap, would make interesting reading.

Mike

Edited 10 January, 201115 yr by rockhopper

Would make for a great comparison test that

Can it be arranged?

Steve

Would make for a great comparison test that

Can it be arranged?

Steve

If we can get the others there, yes.

Mike

I have been informed it is a 4WD RR. My link

If Johann would come along with a standard DSG, my remapped DSG and Kevin with no DPF and remap, would make interesting reading.

Mike

Hmmm. Interesting. I'm not against this but not really going to spend money to only get confirmation of standard manufacturers figures! A rolling road makes more sense for modified cars. But if someone comes up with an offer I won't be averse to going. As it happens I'm free.

Hmmm. Interesting. I'm not against this but not really going to spend money to only get confirmation of standard manufacturers figures! A rolling road makes more sense for modified cars. But if someone comes up with an offer I won't be averse to going. As it happens I'm free.

When I first had my Octavia I had it RR'd. it was putting out over 150bhp as standard. One run managed to get to 190+bhp, before the worked out how to cope with the DSG.

If I can get time out, I'll go.It's not too far from where you are Johann.

Mike