All Things Mk5 > Performance Modifications

Pre-Map Preparation

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pudding:
Those 3 are only 97 RON, so you'll be timing limited.

AJP:
Speak to Bill about that ^ OP.

If it's mapped on 97 you'll be fine running it on BP Ultimate etc.

I had no choice but to use 97 once to get me home (R-Tech map, so needs 99) and it was noticeable.

grey golfster:
I seem to spend a relatively large amount of time where there are no Shell supplies ( > 17 miles from home), Tesco much easier tho.
One of the reasons that I chose an APR map is that it has 4 "settings" (including standard & Valet - albeit valet parking not an issue that I face in my life!) these modes are readily switchable using the cruise control stalk and a PIN code.
I can also choose to switch down from "Max Power"/99 RON back to standard, allowing me to operate safely in areas where the higher RON fuel is not available.
However, I am finding that this is becoming less of a problem as time goes on; you can usually find either Tesco or Shell on, or fairly close to motorways in most places. I have mostly been running on Tesco Super ("Momentum Plus"?) as it's quite a bit cheaper, and much more readily available. No issues at stage 2 n a bit with Lobba HPFP.

I am not getting drawn into the "who's the best map" debate - just sticking to practicalities for a daily Driver.

pudding:
A tune for 95 unleaded vs 99 is only about 20hp down at Stage 1 levels, perhaps a bit more at higher boost pressures.

Anyway, I've been using Tesco 99 more and more lately as it's 20p a litre cheaper than V Power where I live.   I never understood how petrol companies could get away with charging more for the same thing, depending on region, but they have ~20 years left and they're gone, and good riddance.

Cadders96:
I was gonna use Esso Super Unleaded which is 97 I believe, if I had either a Shell V or Tesco Momentum in town I would definitely only be using them but I don't unfortunately.

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