Hi all, can anyone chime in if they know if there's any hardware difference (intake, exhaust, engine internal, transmission etc.) between the V8 R (2015+) and a V8 S (2014-15) for that 50 hp difference? or even the SVR for the 75hp difference? Talking about engine power only

Or is that merely on the difference in software mapping (that's my guess but I dont know much about the car)?

I assume if it's all software then it's probably very easy to upgrade the power output with a tune etc. Not that the car needs more power....but i am sure many will look into doing this in the future

 

The HP difference is from software tuning.

 

even for the SVR?

 

Even for the SVR.

 

What he said, and in addition to that there is no 50hp difference; the V8S runs a 510PS tune and the V8R runs a 550ps tune so there is a software hp difference of just under 40hp.

that said, I do believe the SVR (and 575hp P7) do also have the titanium exhaust/muffler so while the engines are identical, you can't say there are NO hardware differences between the three states of tune (495/550/575)

Dave

 

I think 40-50 BOTH hp AND torque is quite substantial....not to mention 75hp/tq

if it is all software tuning that's great news, you dont have to do a whole lot of upgrades to get the same powertrain performance

Just have to watch out for warranty, if the engine or transmission blows up....

 

Yep, it's all relative. People that have done the 495/510 tune to the 550 tune have said it was noticeable. I've thought about doing it myself but haven't done anything about it yet....

Dave

 

Oh, and IIRC there were some computer hardware changes between 2014 and 2015 which means it takes a bit more to download...

Dave

 

I test drove it a few times and the power is more than enough...fishtails all over the place...I would not tune just as yet until me or the wife gets used to its handling characteristic, put on MPSS etc.

But it's certainly great to know there's that option and headroom in the future!

 

Cambo provided this info on an earlier thread;

If you want to buy a long engine, 5.0L supercharged AJ133S for a RWD V8 F-Type, there is only one part number, AJ813559, there is a different part number for the AWD version, because of the sump needing to accommodate the front axle.

That's a "stripped" engine from the sump to the valve covers, complete except for intake and exhaust manifolds, and it's the same engine that's used in the V8S, RWD R, and Project 7

This same part number is for the XF, and the XJ too, since they changed to the Bosch engine management.

Same engine used for;

475hp (XF and XJ)
495hp (V8S)
510hp (XF and XJ)
550hp (F-Type R, XFR-S, XJR)
575hp (Project 7)

The intake and supercharger on the 5.0L (since JLR changed to Bosch) is the same for all of those variations too. Injectors, same. Cams, same, valves, heads, exhaust manifolds, everything you've mentioned, all the same.

If you go further down the line, they also use the same torque converter, same ZF 8HP transmission, and so on.

It's all in the tune.

And these same engines have been modified with pulleys and an ECU-tune, some exhaust modifications, and are making upwards of 630hp. All on the same internals.

Cooling? No differences. In fact the intercooler heat exchanger and pump on the F-Type are the same units going back to 2003 from the old S-Type R and XJR.

This question has been asked many times, and I have poured through the parts catalogues trying to find the differences. And on some cars there are differences. For example the XKR and XKR-S, XFR and XFR-S, the exhaust is different.

But when it comes to an F-Type, there are no hardware differences at all between a V8S and a RWD F-Type R. There was a wiring change between 2014MY and 2015MY, but this is not anything like the changes you imagine.

JLR is not the only company that does this. Ford Australia has a supercharged 5.0L V8 based on the Coyote engine (the supercharged variant known as the Miami, no relation to the AJ133S btw) they do the exact same thing, different power outputs for marketing purposes, from the exact same hardware.

JLR does this with their diesels too.

The TD4 and SD4 2.0L engines, exact same hardware, two different power outputs, only difference is the tune.

The TDV6 and SDV6 in the Disco (LR4) and the Range Rover Sport, same again, two different tunes for two different outputs, and they charge a premium for the higher output, when it's just software.

These are the facts, no guesswork involved.

Cheers,
Dave

 

Newbie here and been looking at an F-Type R so I'm glad I found this post. Are there other differences between the R and S that justify the price difference? If not then I'll widen my search to include the v8 S models.....they're a lot cheaper!!

 

For less than a thousand dollars, you can change your V8S into a V8R with a tune and a couple of R badges. Go for the V8S.

 

SVR has different, better exhaust.

 

Is the V8S only available in a convertible? I can't find a coupe for sale on EBay or Autotrader.

 

V8S was only ever available as a convertible (2014 & 15). The V8R RWD was only available as a Coupe in 2015. The V8R is now available as a vert or coupe but only with AWD in the U.S. market.

 

Exactly. My wife is dead set on getting a convertible so the v8s is perfect for us. If you want a coupe there's only R available

And S is "cheap" not because there's anything wrong with it but rather due to the sharp depreciation curve. The R will be very "cheap" as well by next year

 

isnt AWD on the R worth it? Every single review says RWD is out of control.

 

It all depends what you want. You don't see them making a viper with AWD so it crash less lol. AWD adds a bit of weight too. So it all depends what you are looking for

 

Yeah but look how well that turned out for us... Couldn't sell the damn things.

 

F-type RWD isn't out of control, but you can't go nuts mashing the pedal in all circumstances. Still, I grew up driving Ladas on a wet or iced cobblestone roads, so comparatively, this isn't an issue.