HI PSI Member 1,589 Member For: 18y 11m 16d Gender: Male Location: Central Queensland Posted 13/03/10 09:26 AM Share Posted 13/03/10 09:26 AM Hi guys, I will be gtting a tune done on my car in the next few days. The tuner is in my home town and has done a few cars now. However, I would like to get some info on what is good and bad before he touches it... They are using VCM suite to tune it. Rumour has it that thye have attended a Nizpro seminar (Still doesn't mean they learnt anything), but I am still very cautious.. If someone could tell me what a/f ratios are good and what is dangerous. Even a few dyno sheet would be awesome... I don't make a million dollars and ahve had to skimp and save a long time to finally get it where I will be happy. I would be devastated if they kill it...So ! Please help..Regards Brad Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/ Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 11m 14d Gender: Male Location: @ my laptop Posted 13/03/10 09:46 AM Share Posted 13/03/10 09:46 AM Trust your tuner.You will get a wide range of answers from different people and most will tell you to run it richer than what is required.The air fuel ratio is important but not as important as people make out........assuming the spark advance is correct for the air fuel ratio delivered, there can be a big range of what is acceptable with a/f ratio. Once the spark is set for a particular a/f ratio any lean outs from that point can do instant damage Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990804 Share on other sites More sharing options...
HI PSI Member 1,589 Member For: 18y 11m 16d Gender: Male Location: Central Queensland Posted 13/03/10 09:54 AM Author Share Posted 13/03/10 09:54 AM Thanks for the reply.. Now I am confused as well as concerned.. .. I tried looking through the300+ club posts.. But they all show The torque readouts... So no real help at all.....God I wish that I had more money. Living is Central Queensland sure has it's setbacks... Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990806 Share on other sites More sharing options...
Ace blind leading the blind Member 3,657 Member For: 16y 8m Gender: Male Location: Mt Alford, Queensland Posted 13/03/10 10:46 AM Share Posted 13/03/10 10:46 AM its not that far to see dave in mackay Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990815 Share on other sites More sharing options...
Wenier Donating Members 1,736 Member For: 15y 3m 23d Gender: Male Location: Christchurch, New Zealand Posted 13/03/10 12:48 PM Share Posted 13/03/10 12:48 PM Just google it if you want to understand the concept a bit better. But as said trust your tuner, if he is in that business he should have some idea of what is bad. Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990838 Share on other sites More sharing options...
HI PSI Member 1,589 Member For: 18y 11m 16d Gender: Male Location: Central Queensland Posted 13/03/10 10:15 PM Author Share Posted 13/03/10 10:15 PM From what I have heard, he tends to keeptem a bit rich. As he has destroyed a few motors in the past (Pre Nizpro Seminar). Does tuning them rich galze the bores or cause any damage to the motor? I just want to understand the process more. I wnat to be able to tell the differnce betweena good tune and a bad tune. Before I leave the shop.. When I boot it, and I will. I want to be confident that the tune will not hand grenade the motor..I have been driving the car for the past week with all of the mods on.. Babying it. And I just simply cannot afford to go to Mackay an get Dave to tune it.. I will later as more funds become available.. Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990868 Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 6m 15d Gender: Male Location: Far north queensland Posted 13/03/10 10:48 PM Share Posted 13/03/10 10:48 PM even if the tune is a bit rich it will be nowhere near as rich as the factory settings Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990873 Share on other sites More sharing options...
bjc Donating Members 2,823 Member For: 21y 8m 7d Gender: Male Location: Townsville Posted 13/03/10 10:57 PM Share Posted 13/03/10 10:57 PM You'd be surprised at the punishment these engines can take. I drove around for a few years originally with it pinging here and there, and just recently with a muffler change. If you have heard it then you will know when to get off the gas.Not saying that driving it if it pings is ok because its not.Trust your tuner as ratter has said. Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990876 Share on other sites More sharing options...
EnricoPalazzo Member 84 Member For: 19y 8m 23d Posted 13/03/10 11:14 PM Share Posted 13/03/10 11:14 PM As already posted, there is no definite answer. However if you are looking for a figure, aim for 12:1. Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990881 Share on other sites More sharing options...
Anchor Member 270 Member For: 15y 2m 1d Gender: Male Location: Rockhampton Posted 13/03/10 11:49 PM Share Posted 13/03/10 11:49 PM Pretty sure I know who you're talking about. And they've gotten a sh*tload better. Both mine and dads have been tuned by them with no troubles. Dads was pretty much the test mule, and now its making 420rwhp day in day out with bugger all mods. Mine has just a flash tuner with 360rwhp and I rape it everywhere. Is scott or zane going to do it? Link to comment https://www.fordxr6turbo.com/forum/topic/66879-what-af-ratio-would-be-classed-as-a-safe-tune/#findComment-990883 Share on other sites More sharing options...
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