hey guys, posted about an interesting article in banzai about performance gains of the higher RON petrol on the market for those of you that didnt read it a quick sumary:

 

the tests were done on a cosworth YB engine with a t4 turbo, readings taken at 6500rpm and 2.0 bar of boost plus an ignition advance of 13(little degree sign should be after this!damn keyboard) advance before increasing until detontation/pinking was heard.

 

normal unleaded at 95 ron peak power was at 516bhp at 10.75 advance as 13 could not be achieved without det

 

tesco 99 RON peak power of 523bhp with ignition only being advancded by 0.75 to 13.75

 

Bp ultimate 97 RON peak power of 537bhp with ingnition advanceded to 15

 

now for the interesting one Shell optimax 98 RON ran peak power at 547bhp ignition avdvancded to 16. not bad eh?

 

so in a nut shell, looks like optimax is definetly the best of the bunch nearly 20bhp higher than tesco 99 and less chance of det. bit lenghty write up but obviously this is quite an important subject, any thoughts guys?

come on "pipeline card" peeps - get us optimax discount!!!!!

Thinking about it when i first got my zed i got bp ultimate sometimes and the engine seemed to be holding back, perhaps some bad detinations, i thought i had an air leak in the turbo system. But i also Optimax all the time now and its sweet.

Mines a jap import and maybe a bit more fussy.

 

Ere if i put some octane booster with the optimax and reset the O2 sensors would i get more poke without dets?