I agree with you how enticing it is, especially since it's relatively cheap for the upper SC pulley after already having the tune. The Stage 2 tune already exceeds the torque limit by ~90ft/lbs, or 25-26%. Stretching it to 470ft-lbs exceeds the design limit by 120ft-lbs/34%. I am not sure what tolerances ZF designs their transmissions, there is usually some head room (as we can see with our Stage 2 tunes), but to what extent nobody else can say.

I'm sure if you never do a burnout or clutch drop of any kind, and limit launches you would be fine. As the designed torque limit probably takes into account some level of abuse from the 'average' consumer. However, the risk of an accidental clutch drop etc scares me a bit.

I think the main thing that makes it prohibitive for me is the additional installation steps (heating, etc).

 

Does that then take the output to 475+ hp?

 

Yes. 475 HP. All the details are in the OP.

 

Any updates?

 

I'm doing my dyno test on Wednesday to document the as is at 45K miles and on Friday getting the pulleys installed. Next week, the VAP tune guy gets back from vacation (and will likely be a bit backed up). So, hoping to have the tune sorted out within the next two weeks and once done, I'm going to have the car dyno tested again to document the results and will report here.

 

keep us posted please

 

Hi Luc,

I think we shipped out your upper pulley this week. If you are in BC, you will probably struggle to achieve commanded ignition timing unless you can get some Washington State fuels. Our fuel in BC is very poor.

 

Yes I am in BC (as per my shipping/billing address and my forum info).
I don't see myself going out of my way to get fuel from Washington State.

What do you recommend?


EDIT #1: I see that there's a station selling e85 at the pump about 5 clicks down the road (lucky me) -- would it be better just to get Stage 4?

EDIT #2: I just re-read the original post; I see you mentioned adding Boostane Pro to inferior fuels as a corrective measure. I'm not averse to this. What, if any, might the long-term considerations/drawbacks be? Thanks again.

 

For pump fuel - yes, we have found that Boostane Pro is a good option for bringing our BC Fuels up to the type of results we'd see on 98 RON in Europe, or even 93 pump fuels in most US States.

If you have E85 available... it's up to you but there's just so much more power available on E85 that to me that's a no brainer. Especially if the per litre costs are a lot lower than 94 pump fuel!

 

My turbo car uses 30% more E85 than gas, so for it to make $ sense, it needs to be at least 30% cheaper, which it isn't around here. That said, for the supercharged F-Type, I don't know the increase required for E85... VAP, what did you find?

For racing, sure, no question, but for use on the street, all the time, well, that's up to you guys.

 

That's definitely a Chris question. I'm not smart enough to answer that.

 

OK, sounds good!
Question: What about the relatively new Shell 93 that was introduced to the Lower Mainland a few months back? (not sure if it's available elsewhere in the province; haven't been in the interior since last Sept.) Any chance that'd be up to snuff?

EDIT: just downloaded the Shell app and checked, apparently it's only the BC Lower Mainland that gets Shell 93 so far (in the whole country).

My thoughts exactly!
Only things holding me back: #1 availability doesn't seem entirely reliable at this station (or others); #2 limits the range of my F Type since e85 hard to come by (very few places to get it AFAIK).

 

Chris or Stuart, can you please comment over in this (unfortunately politically-charged) thread about the consequences of running untuned F-Types on E15?

Thanks,

https://www.jaguarforums.com/forum/f...72/e15-257915/

 

This guy has a great channel where he has actually tested our BC Fuels, along with Washington Fuels:
Original 'Summer Blend' Test:

And yes, Shell 93 is MUCH better:

I would also add this - the difference in results with fuel quality is going to be much larger the further you modify. For example on a stock pulley FType with just our tune, on some of our Poorer BC fuels you might see.... let's say a 4-5 degree gap between commanded and actual ignition timing. However, on a dual pulley car, where we are also commanding more timing under optimal conditions, you might be up around 10 degrees or more. So the gap between good fuel and bad fuel performance is higher on the more modified car.

 

Hi all,

Does anyone have any installation instructions for the supercharger pulley? Looking to get both upper and lower pulleys installed today (in about an hour or so) on my 2017 XF, found a video online describing the process for the lower pulley, but can't find much info on the installation of the upper pulley. Any advice for what temperature and how long to heat it for would be greatly appreciated! I noticed @Stuart@VelocityAP mentioned earlier in this thread that

but my supercharger pulley didn't come with any instructions. I emailed VAP but I think they're closed because it's a Saturday.

@Luc Lapierre @Therock88 or if you know anyone else in this forum that's installed the upper pulley that might be able to provide some advice, that would be very much appreciated - thanks in advance!

 

I was away for the weekend and didn't see till now and I'm only posting this to potentially help others. As a teaser I have my post Stage 3 install dyno test on Wednesday afternoon and will be should be able to report the pre and post install results about 48 hours from now.

Related to the upper pulley install instructions from VAP, I could not get them either and as a result I couldn't find anyone that was willing to do the install in the Chicago area. However, at that point, Stuart at VAP did connect me with the Mancuso Collision & Custom here locally who had done other VAP installs. Billy, the mechanic there (and Mancuso in general) was great, but as Billy showed me, there was not enough room to remove the original pulley and get the new GripTec one on with the supercharger in place. So, they he had to pull the supercharger. All day job (for everything) and more $$$. The upside is that at 46K miles my car now has the supercharger fluid completely replaced. The downside is, had I known that the supercharger needed to get pulled I definitely would have order the aluminum coolant pipes that are now available and had those replaced at the same time (and maybe the water pump too).

The one comment I have after the supercharger work is that the engine runs much smoother now. Not sure if that is the supercharger fluid change, the new GripTec upper pulley or both.

 

You'll need a pulley removal tool (most shops will have a generic one that will work - there is a Schwaben Audi 3.0L tool that works well if you pack out with a couple washers.) The supercharger snout doesn't require removal.

The installation of our pulley is pretty simple, the hub gets separated from the outer pulley and heated to 350 degrees F. Hot plate works, so does MAP gas. That slides on flush with the end of the shaft and then can be quenched with water.

 

I borrowed a loaner tool from AutoZone that worked perfectly with the supercharger in place

https://www.autozone.com/test-scan-a...ler/536914_0_0

 

So it looks like you already had the work done and they pulled the supercharger. Since they apparently worked with VAP previously, it's strange that they didn't know that they didn't need to pull it, and charged you for unneeded work. Maybe your car was the first that they'd done for the upper pulley.

 

Just got my car dyno tested on the same place (URW - Crystal Lake, IL) and MD Mustang dyno that did the first test 3 weeks ago.

I was pretty happy to see that my '16 car with 46k miles before the Stage 3 tested at 377 hp and 364 lb-ft torque. Pretty much as advertised by Jaguar for the F Type S.

The results after the Stage 3 crank pulley, upper GripTec pulley and tune tested at 434 hp and 423 lb-ft torque. So, I gained 57 hp and 59 lb-ft torque with the Stage 3.

I have attached a copy of the dyno results here. The dashed line are pre-test and the solid lines are post-test. Blue is torque and red is horse power.