mreguest
Member
From speaking to a yank in vegas about their petrol being 87RON, he said all his foreign cars are down on power over there compared to the UK/Euro/Jap petrol for 95-100RON.
He had a subaru imprezza which he said probably dealt with things the best (i.e. the least bhp reduction due to RON) he had a maserati convertible which he said was a good 100bhp down on power just because of the RON. And a fooking massive escalade clearly a USA car designed for 87RON... (a yank tank 6.2L V8 beast which he took me for a spin in, very fast considering it's huge, but as they say there's no replacement for displacement...)
He wasn't particularly interested in getting the foreign cars mapped etc. he just liked going round corners well in the subaru, posing in the masi and daily driving in the escalade. He did suggest though that getting them mapped would easily bring them up to spec on low RON fuel, I don't know how true/easy this really is...
As vss says above it would be interesting to know how the yanks claim such big bhps from our small engined foreign cars. I do see the mad yellow gtir claiming 800bhp and maxworks saying similar, but I also saw a picture of them holding a can of race fuel which if I'm not mistaken is 105RON.
At the festival of speed a few years ago I saw BP showcasing some fuel which is 102RON and they used a Porsche 911 turbo. Strapped it down to rolling road ran it through with 95RON, then emptied the fuel tank and put 102RON in it, BOOM 70bhp more there and then, and they did this test over and over all day... why so good?
Same on tv 5th Gear once, they put normal 95RON in a Subaru Turbo and Clio na and Golf Turbo, then swapped it for 99RON and got 20bhp extra subaru, 8bhp extra Golf and 1bhp extra Clio (these values are 'ish' as I can't remember exactly), but they said modern ECUs can reprogram themselves really quickly and efficiently...?
Maybe more RON is the answer?
He had a subaru imprezza which he said probably dealt with things the best (i.e. the least bhp reduction due to RON) he had a maserati convertible which he said was a good 100bhp down on power just because of the RON. And a fooking massive escalade clearly a USA car designed for 87RON... (a yank tank 6.2L V8 beast which he took me for a spin in, very fast considering it's huge, but as they say there's no replacement for displacement...)
He wasn't particularly interested in getting the foreign cars mapped etc. he just liked going round corners well in the subaru, posing in the masi and daily driving in the escalade. He did suggest though that getting them mapped would easily bring them up to spec on low RON fuel, I don't know how true/easy this really is...
As vss says above it would be interesting to know how the yanks claim such big bhps from our small engined foreign cars. I do see the mad yellow gtir claiming 800bhp and maxworks saying similar, but I also saw a picture of them holding a can of race fuel which if I'm not mistaken is 105RON.
At the festival of speed a few years ago I saw BP showcasing some fuel which is 102RON and they used a Porsche 911 turbo. Strapped it down to rolling road ran it through with 95RON, then emptied the fuel tank and put 102RON in it, BOOM 70bhp more there and then, and they did this test over and over all day... why so good?
Same on tv 5th Gear once, they put normal 95RON in a Subaru Turbo and Clio na and Golf Turbo, then swapped it for 99RON and got 20bhp extra subaru, 8bhp extra Golf and 1bhp extra Clio (these values are 'ish' as I can't remember exactly), but they said modern ECUs can reprogram themselves really quickly and efficiently...?
Maybe more RON is the answer?
there are no downsides to it ;-) Shame they binned it off in this country as its a brilliant fuel 8)