Tuning experiences - Shell VPower 100 octane

**Norbie** · 29-07-2007, 11:49 AM

When I get the Haltech installed on my 2JZ I'm getting it tuned on VPower Racing fuel. I've heard nothing but good things about engines running on this fuel, provided it's specifically tuned for it. I tried it a few times with the stock ECU and it made SFA difference, certainly not enough to justify the extra expense.

**fixeruperer** · 29-07-2007, 12:31 PM

there is a differance but not from batch to batch, you get slitghly higher octaine if you fuel up just as the truck has dropped it of to BP, depending on how much is used by public i think its about 2-3 weeks it starts to evaporate levels of octaine.

**off-road** · 29-07-2007, 06:39 PM

Originally Posted by merc-blue

I can tell you that BP AVgas is about 10x better than shell AVgas,

Can you please explain this comment.

**OnAll-FOUR** · 05-08-2007, 08:43 AM

there is a recent more detailed write up on Autospeed

http://autospeed.drive.com.au/cms/A_108935/article.html

**1JZ-Rolla** · 05-08-2007, 11:27 AM

Top link! The extra detail over the motec article is heaps better. Thanks

**merc-blue** · 06-08-2007, 08:54 AM

Originally Posted by off-road

Can you please explain this comment.

The BP Avgas contains a consistant amount of lead and its a known quantity, while shell suggests that it has lead, we found batch to batch the fuel changes alot more,
You can even smell the difference in shell batches,
If your running for every HP you can get you want consistent fuel and i dont belive shell offers that

**6BOOST** · 07-08-2007, 10:13 AM

In testing on a highly modified SR20 drift engine, we picked up 26rwkw on the same boost with shell 100oct over BP ultimate, we added another 8 degrees more timing and power went from 272rwkw to 298rwkw. Actually, it was prob on about 1/2 to 1psi less boost as well as the boost comes down as you add timing. Good fuel, but they run out of it around here all the time, not much good if its all your car runs on!!

6BOOST

**abently** · 08-08-2007, 03:59 PM

Mobil Synergy 8000 is the most consistent Fuel you can buy at the pump.

If you want more power then that, setup Methanol/Water Injection, cheaper in the long run.

**Dieseltrain** · 08-08-2007, 07:46 PM

I run the shell 100 all the time. Pulls the numbers and i dont have any programmable management yet.... Hopefully soon so i can take full advantage of that