Hi all - considering doing this to achieve ~320 BHP (or thereabouts) but wondering;

 

• what increase in insurance premiums are folks seeing. I understand that some insurers won't allow more than 25% increase so may have to move (Admiral multi-car)
• if you are driving normally, is the fuel ecomony better / worse and to what extent
• is the increase in torque really noticable
• recommended maps / fitters in NW England

 

Thanks in advance

Awesome GTI would be a local speed shop with the answers I'm sure.

31 minutes ago, Boosted_8 said:

Awesome GTI would be a local speed shop with the answers I'm sure.

Err - thanks for the reply. Not sure that you have actually told me anything.

On 15/05/2023 at 19:04, Maxi24 said:

Hi all - considering doing this to achieve ~320 BHP (or thereabouts) but wondering;

• is the increase in torque really noticeable

 

dtintecno.de claim an increase from 245HP/370Nm to 320HP/450Nm. So about a 30% increase in power, and about a 20% increase in torque.

 

From the remapped power and torque curves that I've seen, you may find that for the best acceleration it's best to keep the revs between 2,750rpm and 5,250rpm.

 

With a remapped 245HP engine, you might as well ask the remapper to set a 5,250rpm rev limit...in fact, I wouldn't want a remapped 245HP engine without this. This is because on a remapped 245HP engine, the power drops off a cliff after about 5,250rpm. If you make the mistake of holding onto the revs above about 5,250rpm without changing up the car will accelerate slower than if you do change up at about this point.

 

By contrast, a remapped 280HP engine produces lots of power all the way to the red line, or at least until about 6,300rpm.

 

It might be better to have a hybrid, if 150HP went to the front wheels (the ICE engine) and 150HP went to the back wheels (electric motor), as the full potential of 300HP can't effectively be used below about 60mph in a front wheel drive Octavia.

 

The biggest problem is the underwhelming torque below 2,750rpm. For low speed use, an Octavia 2.0TDI 4x4 VRS makes a lot more sense. At least it can put its power down effectively without the dreaded wheel spin problem, and the diesel engine produces much more low down torque than either the 245HP or 280HP engine, remapped or not. The 4x4 system will pay for itself, due to the much reduced fuel consumption of the diesel engine.

 

In top gear, with either a 245HP or 280HP engine (remapped or not), you won't get into the power band until well over 70mph. It's not really the kind of engine that I would want for a sensible daily runner due to the low performance problem below about 2,750rpm. As a weekend track tool, either engine would be a completely different proposition, and a remapped 245HP engine's lack of power high up in the rev range (peak power of 320HP is produced at around 4,500rpm) wouldn't be a problem on most race tracks as you're unlikely to often go above 130mph.

 

Edited 6 June, 20232 yr by Carlston

Not so much a 'Track tool',  more like a tool going on track day.

 

@Carlstonwhat is it you drive with 15" rims and narrow / fuel efficient tyres?

@Carlston torque at the wheels is all that matters in the end e.g. I will stay in a lower gear for a bit longer than peak power to get the multiplying factor from the gearbox. It's why diesels feel fast but aren't in a drag race, torque at the crank is high but longer gears to compensate for low rpm offer less multiplication at the wheels.