Hi all
Considering the insane price difference (28,000 €) between V6 base and V6S in my country, I consider buying a base model and then have the ECU remapped to V6S performance level (no need to exceed it).

1. Do you guys have experience with this?
2. Do you know if it is possible that tuners remap to exact V6S spec, e.g. copy-paste from a V6S?
3. Would it be technically possible to install a after-market V6S ECU to obtain the same result?

Of course I take into account:
- warranty issue, so may delay remap towards end of warranty period
- V6S goodies like adaptive suspension and limited slip dif that I would miss - for me no big deal. Other options like active exhaust and 19" I would put on the base anyway.

Hopefully I find a solution, because fell in love with the F type coupe...

 

Without the adaptive suspension, you might not like 19" wheels. The convertible I test drove on 19" had a significantly worse ride than the V8R on 20" wheels.

Try asking a Jaguar dealer if they'll fix it for you.

 

Likely it is different module hardware than the standard version and that would make the software incompatible. Also finding someone to flash it for you would be next to impossible. You'd likely need to do a custom tune, and of course you'd miss out on many of the features of the v6s

 

I have tuned a few of them with the Rica tune which brings the car to 398hp. It is quite an improvement.
http://www.rica.nl/index.php

 

It is not that simple. The V6-S has different supercharger pressure and final drive ratio from the V6, so you cannot just take the ECU map from the V6-S and apply it to the V6. See this.

You may want to note that the engines really only product different power at the top end of the dyno curve. See this. So unless you plan to operate your car inside that top range it may not make that much of a difference.

There are several companies working on ECU maps and also ECU+pulley kits for the V6 base.
OE Tuning, Eurocharged, and the EC Tuning group all have products either available or under development.

 

The boost is controlled by the ECU. If you look at the RICA website you will. see.
Rica Engineering Chiptuning

 

Can you confirm that the pulleys are identical between the V6 and V6S?

 

Yes they are I measured them when the cars first came out. The ECU bleeds off boost to control boost. That is one of the reasons we get such an increase on the 5.0 cars.

 

That's very helpful, thanks!
In this case, the ECU map should be a lot more straightforward. Do you have the torque and HP curves for the ECU remap versus the original?

 

http://www.ricaserver.com/ricaweb/dy...78&language=EN

 

1) The difference is noticeable?

2) The V6 performance should be close to the V6S... did you test it?

3) Any dyno or test apart from the RICA.NL chart?

4) The file transfer via OBD is easy?

Thank you!!

 

see above

 

Link doesnt work for me. Just get a bunch of gibberish.

 

Thank you!

 

The link doesn't work for me either and is also just gibberish.

As Schraderade posted the OEM torque curve for the two V6 engines showing little or no difference until near the rev limit, I can't imagine why anyone would do this based upon what I've seen. Not only would it void the warranty, I've not seen anything that documents a significant benefit. Several F-Type reviews have noted the same thing with regard to the two engines.

Perhaps if a readable link to the Rica torque curve could be posted, it would be worth a look.

Obviously, there are other differences in equipage between the base and V6S that might make a difference to some (not me) justifying the price difference, but until persuaded otherwise, I can't see risking an ECU reflash.

 

Go to the Rica website & have a look. I just clicked on the link & see the graph. I am not sure why it is not readable to you. I can only say it is a quite noticeable improvement.

 

Will do, thanks. Tried it several times, and no luck. I've seen this a few times when viewing from an Apple vs. PC machine.

 

I went directly to the Rica website, and punched in my vehicle info to find it there. Indeed, that is quite an impressive difference! Perhaps at the end of the warranty I can see being very interested in this, but I'd like to follow any possible reliability consequences over the next couple of years.

I've been an enthusiast for many years now, and extra boost always creates some consequences. It's just a question of how much, and whether the risk is worth the reward.

 

Figured it out. The link *only* works with Internet Explorer. Doesn't work with Firefox, Chrome or Safari.

 

Here are the curves from the website for the base V-6.
Note that the recommended octane rating for the ECU is 98 RON (equivalent to 93 US octane rating). At least in California, that octane grade is not commonly available.

USA (AKI/PON) --- Europe (RON) conversion

• 87 = 91
• 89 = 93
• 91 = 95
• 93 = 98

The supercharger torque curves are really interesting. I note that the torque curve starts maximizing in the 2500 to 3000rpm band.
When the transmission is not in sport mode, I find that the transmission often shifts around or below that range. That may be for fuel economy reasons, but it'd be nice if it were more aggressive. For this reason, i've been driving mainly in sport mode even when cruising around the city.