Justin Posted June 15, 2006 Share Posted June 15, 2006 Dear Fuelling gurus What are the considerations/deciding factors when selecting a race fuel type for your application? I was thinking of mixing 1/2 optimax with 1/2 Cool Blue 76 maybe? Or is that a wasted of time and I should use a neater mix? Eg, Horse power, ECU and fuelling mods fitted, operating boost pressure etc? I'd like to try some to try and get 2 tenths off my 1/4. I don't want to have to mess with SAFC settings and stuff like that I'm looking for a 'plug and play' solution if that is possible. Link to comment Share on other sites More sharing options...
Kevin Huntley Posted June 15, 2006 Share Posted June 15, 2006 Which ever is the most potent! The higher the ron the better. I suppose cost also comes into it! I have ran C116 (leaded), C112 (leaded), Cool Blue (unleaded) and 102 (unleaded). Some of the fuels are leaded and others are not. The leaded fuel will however degrade wideband sensors overtime. To make best use of the race gas you really need to map your car with that fuel. The main advantage of the race fuel is that you can run higher boost levels without the risk of detonation which in tern helps you release more power. Hope that helps Kevin Link to comment Share on other sites More sharing options...
Justin Posted June 15, 2006 Author Share Posted June 15, 2006 I'm safely mapped for 1.5 to .6 so would using something like 106 RON just help keep EGT's down and not add any power/torque? Perhaps I'll stick some in and turn up the boost to 1.7 Cheers Just Link to comment Share on other sites More sharing options...
Ian C Posted June 15, 2006 Share Posted June 15, 2006 I'm safely mapped for 1.5 to .6 so would using something like 106 RON just help keep EGT's down and not add any power/torque? Perhaps I'll stick some in and turn up the boost to 1.7 Cheers Just What turbo are you running? -Ian Link to comment Share on other sites More sharing options...
Robert Posted June 15, 2006 Share Posted June 15, 2006 justin aren't you on stock turbos mate? Link to comment Share on other sites More sharing options...
Kopite Posted June 15, 2006 Share Posted June 15, 2006 Link to comment Share on other sites More sharing options...
Robert Posted June 15, 2006 Share Posted June 15, 2006 im sure they are hybrids Link to comment Share on other sites More sharing options...
Ian C Posted June 15, 2006 Share Posted June 15, 2006 Hm, an easy power gain would be turning the boost down to 1.2bar then Dread to think what the EGTs are at 1.7bar. -Ian Link to comment Share on other sites More sharing options...
Justin Posted June 15, 2006 Author Share Posted June 15, 2006 Hm, an easy power gain would be turning the boost down to 1.2bar then Dread to think what the EGTs are at 1.7bar. -Ian Dya think? I'm on hybrids running 12.1 sec 1/4s at 1.5bar http://website.lineone.net/~jmoat/Pod/timeslip.jpg. I have 550's, HKS Cams, SAFC and a Blitz Access ECU mapped in Japan with FMIC blah blah blah. How many times have I posted my dynos on this forum!!!! http://website.lineone.net/~jmoat/Pod/justin_dyno.jpg They say 1.6bar and 450hp at the hubs!I have had 2 Supras for 5 years and not blown them up. I know that you have said before less boost gives more power but the evidence here suggests to the contrary. You can see here that 1.3 bar gives 20hp LESS at the THOR hubs and 48ft/lb LESS of torque than the 1.6 indicated. The AFR's were fine. I respect what you say because you know a lot more than me by a country mile but can you explain for me and others like me here why when the evidence here is different to what you say? For the record at Santa Pod on the 25th I'm going to do one run with 1.2 bar boost. Will be interesting to see what that produces. My last 3 runs were all 12.1 at 1.5 bar. Link to comment Share on other sites More sharing options...
Justin Posted June 28, 2006 Author Share Posted June 28, 2006 Which ever is the most potent! The higher the ron the better. I suppose cost also comes into it! I have ran C116 (leaded), C112 (leaded), Cool Blue (unleaded) and 102 (unleaded). Some of the fuels are leaded and others are not. The leaded fuel will however degrade wideband sensors overtime. To make best use of the race gas you really need to map your car with that fuel. The main advantage of the race fuel is that you can run higher boost levels without the risk of detonation which in tern helps you release more power. Hope that helps Kevin Kev do you think this would be the ideal choice out of the lot for my application? http://www.motorshack.com/acatalog/VP_CSP_Race_Fuel.html I want to test it at pod by turning up the boost a little to break into the 11's. The bigger picture is performing at TOTB of course. Cheers Just Link to comment Share on other sites More sharing options...
MONKEYmark Posted June 29, 2006 Share Posted June 29, 2006 when i did my 11.962 i put in some 113 octane klutz race fuel i bought off a guy at pod.it was same price as 106 ron.i just tried a bit for safety.dont know if it helped as i never reset ecu and had full weight minus rear wheel. will the stock ecu even make use of race fuel.i did my time running 1 bar boost on stock jap ceramic turbos.would like to try again with stripped weight and 1.3 bar boost. think i payed 45 quid for a small tub of 113 klutz fuel (think its called that) also bought some cool blue 106 but never used and sold it on.sure u will get there with a few more practice runs.your car has some great spec so should have the power. Link to comment Share on other sites More sharing options...
Justin Posted June 29, 2006 Author Share Posted June 29, 2006 when i did my 11.962 i put in some 113 octane klutz race fuel i bought off a guy at pod.it was same price as 106 ron.i just tried a bit for safety.dont know if it helped as i never reset ecu and had full weight minus rear wheel. will the stock ecu even make use of race fuel.i did my time running 1 bar boost on stock jap ceramic turbos.would like to try again with stripped weight and 1.3 bar boost. think i payed 45 quid for a small tub of 113 klutz fuel (think its called that) also bought some cool blue 106 but never used and sold it on.sure u will get there with a few more practice runs.your car has some great spec so should have the power. Cheers monkeymagic. I don't have stock ECU by the way mate I have Blitz Access ECU. As long as I can't do any damage by putting in 113 it's cool. I just want to see why my terminals are so bad with the power I have and if turning up the boost is what's needed to improve it and in turn get me under the magic 12.0. It might just be that my stall isn't high enough and I should have got a 4000. I'm defeating my 6pot AP's at around 3300 rpm. Link to comment Share on other sites More sharing options...
MONKEYmark Posted June 29, 2006 Share Posted June 29, 2006 I'm defeating my 6pot AP's at around 3300 rpm.PRESS HARDER lol Link to comment Share on other sites More sharing options...
Guru Posted June 29, 2006 Share Posted June 29, 2006 What is the reliability of your tubbies running >1.2 bar if they are hybrids? Link to comment Share on other sites More sharing options...
Guest Terry S Posted June 29, 2006 Share Posted June 29, 2006 will the stock ecu even make use of race fuel.i did my time running 1 bar boost on stock jap ceramic turbos.would like to try again with stripped weight and 1.3 bar boost. Yes, the stock ECU throws loads of timing at the car, then pulls it back. The better fuel will let it run more timing. You may need to reset the ecu and let it learn on the better fuel though. Link to comment Share on other sites More sharing options...
Justin Posted June 29, 2006 Author Share Posted June 29, 2006 What is the reliability of your tubbies running >1.2 bar if they are hybrids? I've been running 1.5 to 1.6 bar for two years. It was running much more boost than that at places like Nurburghring with it's previous owner so I think they are a bit special and wouldn't recommend running this level of boost on any/all hybrids. EGT's are good and it is mapped accordingly. Link to comment Share on other sites More sharing options...
Justin Posted June 29, 2006 Author Share Posted June 29, 2006 Yes, the stock ECU throws loads of timing at the car, then pulls it back. The better fuel will let it run more timing. You may need to reset the ecu and let it learn on the better fuel though. Should I reset my ECU too Terry after chucking in some rocket fuel? Battery off for 30 secs right? Link to comment Share on other sites More sharing options...
Thorin Posted June 29, 2006 Share Posted June 29, 2006 Cherry flavour. Link to comment Share on other sites More sharing options...
Thorin Posted June 29, 2006 Share Posted June 29, 2006 Battery off for 30 secs right? Pull the two ECU fuses. Link to comment Share on other sites More sharing options...
Justin Posted June 29, 2006 Author Share Posted June 29, 2006 Two fuses - ah prefer that cheers. Cherry. Now why couldn't have someone just said that at the start! Link to comment Share on other sites More sharing options...
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