2016 f type r upper and lower pulley using boostain oct booster 1/2 bottle per tank . any ideas about boosters and engine damage ??

 

The amount of booster you're using shouldn't cause any damage. It also won't do you much, if any, good.

 

Boostane is the only real fuel additive that will help in this regard, even still, you probably won't see much benefit unless you can't find 93 near you. Even then, it leaves a nasty rust color coating on everything.

 

Instead of an octane booster, which doesn't do what it states, try adding 2-3 gals of e85 per tank of 93. Provides a real raise in octane with no side effects and much cheaper.

 

Not so sure about "no side effects".
The F-Type fuel tank takes 70 litres = 18.5 US gallons.
Call it 18 gallons at a fill as the last .5 gallons is usually held in reserve.
So three gallons of E85 = 1/6 of the fill = approx 16% x .85 ethanol = 13.6% ethanol.
Call it 13% as most E85 is a bit less than 85% ethanol.
But JLR specify max ethanol content of 10% for the AJ133 and AJ126 (dunno about the four potter).
So probably no problems but it could be a bit iffy!

 

Then I'm in real trouble running straight e85 on my stg 4 tune😂.

​​​​​​Seriously though things only get iffy if you run more than e25 without being tuned for it, but the injectors have enough adjustment room (can trim +/- 20%) to keep things in good shape below that. What's really been great for me is I have a stg 3 tune that was just a little too hot for 93 octane so VAP had to send me a new file (which is perfect) and now I run the hot file with the ethanol mix. Doesn't ping anymore and runs like a scalded dog.

 

I should try the ethanol in a pinch. Luckily I have a race gas source ~10 miles away but it adds like $30 per fillup to reach 93+ octane. Not that I really mind, I don't daily my F-Type.

 

So in multiple conversations with Chris @Tuning@VelocityAP he has shared that if you have access to ethanol fuels locally, you can mix to create a ratio of E20, this will reduce your ignition timing correction when hot and run a faster trap time, all on stock fuel system (injectors, pump, etc).

 

I use boostane in quantities recommended by their app to boost from 91 pump gas to 93 octane. 93 from the pump is simply not available in Nevada and most places in the western US. I assume the boostane works. My Dyno results with VAP tune and lower pulley yielded 570 wheel, so it must not be pulling timing.