MIVEC tuning for Cosworth Cams
#18
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Im here
Im using a slightly altered form of JB's S1 mivec map... mine actually has a lot more advance up top. I seem to hold boost pretty well with it. I will be on the dyno again soon to try it out as i am dropping Cosi's into another car tomorrow night and tuning on thursday as well as swapping to a 35R in my car so i will need to retune then as well. I wont post the map as it is basically JB's...
I will say though, the cams idle pretty lopey, there is not too much you can do to get away with it. I have found that running 18* or so in the idle cells seems to sound better than running 0* and other then that, raising the idle a bit will help with them loping so much... I have been on bigger injectors for awhile and all the sets i have tuned have been as well, so thursday will be my first shot on stock injectors. Ill touch bases back here and let you guys know what i find to work best....
JB, if you want to shoot me your Cosi mivec map i can test that out thursday as well, if not i understand.....
For those of you that do not tune on your own, and need someone who will have your car doing things that dont seem to be possible, if he has time, get with JB about tuning... the time in my sig speaks for itself
Im using a slightly altered form of JB's S1 mivec map... mine actually has a lot more advance up top. I seem to hold boost pretty well with it. I will be on the dyno again soon to try it out as i am dropping Cosi's into another car tomorrow night and tuning on thursday as well as swapping to a 35R in my car so i will need to retune then as well. I wont post the map as it is basically JB's...
I will say though, the cams idle pretty lopey, there is not too much you can do to get away with it. I have found that running 18* or so in the idle cells seems to sound better than running 0* and other then that, raising the idle a bit will help with them loping so much... I have been on bigger injectors for awhile and all the sets i have tuned have been as well, so thursday will be my first shot on stock injectors. Ill touch bases back here and let you guys know what i find to work best....
JB, if you want to shoot me your Cosi mivec map i can test that out thursday as well, if not i understand.....
For those of you that do not tune on your own, and need someone who will have your car doing things that dont seem to be possible, if he has time, get with JB about tuning... the time in my sig speaks for itself
#22
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the one he sent me, is the one he posted. I will be testing it tomorrow. The S1 version mivec i have worked really well with the cosi's as well. My spool with my 20G somehow jumped up almost 1000 rpms compared to my S1's and i made more power and torque throughout the band
#23
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the one he sent me, is the one he posted. I will be testing it tomorrow. The S1 version mivec i have worked really well with the cosi's as well. My spool with my 20G somehow jumped up almost 1000 rpms compared to my S1's and i made more power and torque throughout the band
#26
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yes, dotted is the S1's directly after you tuned them.... the solid is your same tune before i started tweaking it, first pull, with the cosi's.
You will not have any problem getting rid of the S1's... they are a great cam for the stock turbo, i think if you go bigger though, thats when they fall off. A lot of people have good results with the green and s1's as well, but i think that is because they arent on the green and the cosi's
You will not have any problem getting rid of the S1's... they are a great cam for the stock turbo, i think if you go bigger though, thats when they fall off. A lot of people have good results with the green and s1's as well, but i think that is because they arent on the green and the cosi's
#29
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this was JB's s1 tune... complete tune with his s1 mivec map. Then i swapped s1's for cosi's did nothing different to the tune, did nothing different for boost as you can see.... and this was my result. I was floored with the results. The dynoing was done probably 3 months apart, i posted corrected numbers so weather and humidity shouldnt matter... But, for those of you that it does matter to, it was way hotter when i dyno'd the Cosi's
#30
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this was JB's s1 tune... complete tune with his s1 mivec map. Then i swapped s1's for cosi's did nothing different to the tune, did nothing different for boost as you can see.... and this was my result. I was floored with the results. The dynoing was done probably 3 months apart, i posted corrected numbers so weather and humidity shouldnt matter... But, for those of you that it does matter to, it was way hotter when i dyno'd the Cosi's