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It is slightly more complex that that regarding the limits to the output. I definitely would not start messing around with sensor signals, especially the throttle. Could get stuck open, stuck closed etc.
The supercharger bypass valve is pretty similar to a wastegate (I think that's what you meant rather than blow-off valve. A BOV doesn't regulate the boost pressure, it gives the built-up boost a way to relieve when the throttle is closed so it doesn't wreck the turbo.) So yes, it is controlled electronically, and yes we can increase boost with the tune alone.
Adding a crank pulley requires further alterations to the code, to allow even higher boost.
I did in fact mean wastegate, thanks for the correction.
So at WOT is the bypass valve fully closed (i.e. no air is being recirculated)?
Is boost in the 380 and 340hp OEM tunes identical? Limiting the throttle opening/bypass valve would seem like a really easy way to limit output in these cars...
If there were no risk it would be interesting to see the results of disconnecting the bypass valve altogether (I'm sure this would generate unwanted heat/weird idle).
Thanks for the discussion Stuart, this is all very interesting to me.
I did in fact mean wastegate, thanks for the correction.
So at WOT is the bypass valve fully closed (i.e. no air is being recirculated)?
Is boost in the 380 and 340hp OEM tunes identical? Limiting the throttle opening/bypass valve would seem like a really easy way to limit output in these cars...
If there were no risk it would be interesting to see the results of disconnecting the bypass valve altogether (I'm sure this would generate unwanted heat/weird idle).
Thanks for the discussion Stuart, this is all very interesting to me.
The bypass disconnected would remain open. You have to remember when things are manufactured, their also manufactured for the most possible failure and that would be electric in this case. So default is fully open and is cycled closed.
Will this tune be made available for XFs, for both versions?
Thanks
================================================== ===========
Understeer is when you hit the wall with the front of the car
Oversteer is when you hit the wall with the rear of the car
Horsepower is how fast you hit the wall, and
Torque is how far you take the wall with you
Will this tune be made available for XFs, for both versions?
Thanks
================================================== ===========
Understeer is when you hit the wall with the front of the car
Oversteer is when you hit the wall with the rear of the car
Horsepower is how fast you hit the wall, and
Torque is how far you take the wall with you
its already available for the XF and XE with a 3.0L, once I get the 2.0L Diesel/Petrol figured out it will will be a mirror image for the XF version of the 2.0's.
Beginning Today and running until January 31st, these tunes will be available for the XE at a 30% discount from regular pricing. Use Coupon Code: XEV6ECU at checkout and the discount will be applied. That is just $9 per Pony!
Tried to purchase this last night using the code provided and did not work. Still interested in purchasing if you can provide me with a valid code to use. This will go on my XF with the 340HP 3.0L V6 S/C
Tried to purchase this last night using the code provided and did not work. Still interested in purchasing if you can provide me with a valid code to use. This will go on my XF with the 340HP 3.0L V6 S/C
Nevermind...customer service reps reached out to me after seeing my issue and I will be receiving the powergate 3 vswitch shortly.
Hello - I checked and we did not receive an order from anyone in Plano, Tx recently, definitely not last night.
You're posting in the VelocityAP tuning thread but you are using the term VSwitch so I am assuming you purchased or were trying to purchase from Viezu? That would explain why the coupon code didn't work.
Either way, if you were looking to purchase VelocityAP software you will need to order directly from us, and we don't have any record of your order. If you want to call me I can help.
There has understandably been a lot of talk of ECU tunes, but how about any performance induction systems, intercoolers or exhaust systems for the 4 cylinder petrol engines? I know Mountune offer these for the same Ford engine in Ford cars, just not sure if these will fit the 4 cylinder engine in a Jag?
Will these provide any power increase with factory ECU tunes, or only with aftermarket tunes to suit?
There has understandably been a lot of talk of ECU tunes, but how about any performance induction systems, intercoolers or exhaust systems for the 4 cylinder petrol engines? I know Mountune offer these for the same Ford engine in Ford cars, just not sure if these will fit the 4 cylinder engine in a Jag?
Will these provide any power increase with factory ECU tunes, or only with aftermarket tunes to suit?
I had always assumed that most people that go with the 4 cyl engines are doing so for fuel economy. It would be very interesting to see what sort of numbers you can get from a 4 cyl. !!!
Last edited by Cherry_560sel; 02-04-2017 at 07:11 PM.
I had always assumed that most people that go with the 4 cyl engines are doing so for fuel economy. It would be very interesting to see what sort of numbers you can get from a 4 cyl. !!!
It is only partially due to fuel economy that I decided on the 4 cylinder In Australia at least, the 6 cylinder car costs over 50% more, partly due to added luxury car tax, and mostly due to marketing. If the 6 cyl was only 25% more, then I would have gone for it, but when it is blatant profiteering, then I'm not interested. If I can spend a few $1000 more and get to within 30-40hp of the 6, then I would consider it money well spent.
If the same engine in the Evoque is making 285hp from the factory, then I wouldn't expect reliability to be much of an issue and fuel economy wont deteriorate too much.
That was the exact same line of thought I had when choosing between the 3.0L and the 5.0L. The VAP tune has been vetted by the F Type's which carry the same 3.0L engine that is in the Xf and Xe line. Those guys have been pushing their V6 machines to the limits of what can be done and they have had nothing but great things to say in regards to how true their results match up to the claimed hp increase from VAP. I would estimate that once the 4 cyl. owners begin looking for more power from their cars we will begin to see more dyno numbers to see what can be had from the 4 cyl engines.
01-22-2017, 05:25 PM
