Good Day everyone! I am looking to pick up the velocity AP tune for the Jag but I wasn't able to find much info on people who have done it with Manual trans. I just want to know if the clutch is going to be able to handle the added HP. Most of these are Auto and it obviously works with that. If anyone has experience I would love to hear about it!

Thanks in advance!

 

@Unhingd has just about every available mod done do his 3-pedal F-Type. Check his profile.

 

Thanks @Mahjik !

 

I have been running with the tune for almost six years now, and tune plus lower pulley for over two. The mileage in the last two years is down significantly from previous, but I haven't had any issues. I'll note a few things:

- If you're still on the original clutch you're living on borrowed time (and would have one the few surviving Gen 1 clutches, as most have self-destructed by now)
- I'm generally gentle on the clutch and gearbox, but not the engine. I'll hammer the throttle, but only once the clutch is fully engaged, and I don't "speed shift". Rebuilding Saab transaxles was my bread and butter way back when so I've seen what happens to the gears and synchros, although it was generally the pinion bearings that led to the rebuild.
- Average fuel economy shows no discernable difference, and I track it with every tank.
- Performance is noticeably improved

 

@lizzardo Thank you for the info! I purchased it at 30k miles 2 months ago so I will have to check and see if its oem clutch. I have beat on it a bit and it took like a champ so I think it may be good. Looking forward to feeling the difference. Cheers

 

The 4th gen OEM clutch is hanging in there just fine after 20k miles .

 

I think this is the way to be.

 

I have the "stage 2" tune with the upgraded crank pulley on my MT. I try to have some mechanical sympathy for it as mentioned above. There is also the stage 3 tune with a supercharger pulley (475hp), and stage 4 with E85 (500+hp) but honestly at that point you're so far above the design limits of the ZF S6-45 that I would be wary.

For reference, in the BMW applications, the S6-45 is rated for 470Nm which is ~345 ft lb. I couldn't find the #s specifically for the F-Type but i can't image it would be too different. Anyways, stock the S is at 332 which is under that limit. With the stage 2 tune, you're at 440ft lb.

 

Keep in mind that these are *peak* values -- it's still up to the driver whether & when to thrash the poor thing


One more thing I'll add: since getting Stage 2, I most certainly do not use the throttle sensitivity adjustment that's offered in "Dynamic" mode (lots of people probably don't use it anyway since all it does is front-load the throttle and make it twitchy).

With the manual especially: shifting into gear + rolling onto the throttle + front-loaded throttle + loads of torque + suspect transmission = I'd rather not find out.

 

I thought I'd found specs at one point but I can no longer find them. It seems I was smart enough to save the lubricant specs, but that's about it. I was thinking the peak was about 435 lb-ft or so but that doesn't match the discussion here. I expect the bearings will start to get noisy at some point, and that if I were in the habit of dumping the clutch for hard launches something else would break first.

My first tune was overly sensitive in a certain range of conditions but I heard they had an updated version that addressed that. All it took was an email query and an update was on the way. It did address that, although I've never used the dynamic throttle setting anyway.