Depending on ur climate, location and whether ur on stock cats or not u may only boost at 8psi with the pulley upgrade...I had to get the pulley upgrade due to these issues....the standard pulley was only maxing boost at 7.6psi. ....Stillen had to give me the upgraded pulley which put me at 8.6psi

In in the UK so foresee no issue with climate, well maybe flooding but no altitude issues. Were also on 98 octane fuel which is a bonus as this is less prone to detonation.

I spoke to the tuner this morning just to get my head straight and it is the intention to use the sensor in the plenum to feed the ECU with actual air temp.

^^^^^^ nice......Wish we had 98 at the pump....that would be so awesome....I'd even settle for 93...the highest grade we have at the pump here is 91. Race gas is @ 109 but it's really expensive.....5 gallons of race fuel is $120 (US $ ).

Looking forward to your results....

Is the rating the same? I can't believe they would sell that expensive gas at the pump. It would cost 30% more here if it were true 98.

We have something even better than 98 its called E85 and 5 gallons is about $7. :happydance:

Isn't that 98 RON? That comes out to about 94 the way we measure it here in the US. Still great, but not quite as impressive as it seems at first.

:iagree:

Research Octane Number (RON) is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane.

Motor Octane Number (MON) is determined at 900 rpm engine speed instead of the 600 rpm for RON. MON testing uses a similar test engine to that used in RON testing, but with a preheated fuel mixture, higher engine speed, and variable ignition timing to further stress the fuel's knock resistance. Depending on the composition of the fuel, the MON of a modern pump gasoline will be about 8 to 12 octane lower than the RON, but there is no direct link between RON and MON.

A number of countries, including the US, use an average of the RON and MON, which is called the Anti-Knock Index (AKI).

Your right it is around the 93–94 (AKI) and the E85 you guys have is 94-96 (AKI), although looking at the tables its comparative with your premium/super stuff.

We did have a race 102 (98-98 AKI) but that was way to expensive. Current fuel prices here work out to be $6.50 per gallon

Quick read from a website:

Straight ethanol has a race-gas-style octane rating of 115. Mixed with 15 percent 87-octane pump gas, E85 lowers this to between 103 and 105 and generally sells for less than 87-octane gasoline. You read that right. We're talking the equivalent of 105-octane race gas for the price of moose-piss pump gas.

While there is a 27 percent reduction in heat, ethanol's strong octane rating allows the use of a higher static compression ratio to take advantage of that resistance to detonation. This means if you were to run E85 in an 11:1 or 12:1 compression engine, E85's higher octane would prevent detonation, which would allow you to run this higher compression ratio and take more advantage of the reduced Btu heat output by squeezing the existing air and fuel a little harder to make more power.

Any update on the intake temps, post-aftercooler?

Not yet. Been waiting. For some other parts, which are in now there. Next week.

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Please hold us up to date!

My experience I can only post the end of April! :ugh2:

Don't worry. I'll post when I have the info.

He has completed the re-circ pipe for the dump valve though.

Attachment 111962
Attachment 111963

And putting 2 fans behind the frozen boost rad to move air when stationary in traffic, which happens a lot in the UK

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Whats the story behind this dump pipe?

Allowing the air to cool more before its back into the blower??

Exactly. What's going on here?

That's not the intention. He said why he'd do it but I can't remember the exact reason. What I can remember is he said something about when the car isn't under load and the revs are say 3000rpm there is still lots off boost that's not needed (I understand this) which can cause some weird behaviour (can't remember this bit). But this is how he's fixed it to run smoother.

Got to be recirculating.

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