Most of my EVO buddies are using the stock JDM RS map with the cossies.

Its darn near the same as the above posted map.

 

Like Jeff said I really havent seen much better results than what it provides. Its almost as though Cosworth engineered the cams according to the MIVEC map that was there (never altering it) to make it that much easier.

 

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

 

Jason, I'll send it out now....ish...I think its on this computer.

 

JB - is your cosworth map, different from what you posted earlier?

 

I was wondering the samething after reading some of the newer posts.

 

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

 

Like he said. Also thats one very important reason I want to try the Cossies now. 1000rpm better spool would make my Green feel almost exactly like stock versus where it is now. It used to be 25psi by 3200 and now with the Green and the bigger intercooler I see 25psi by 4600 generally. It still makes 20-21 by 3500 or so but it takes it that much extra to get to the "zone".

 

JB, with your S1 map.... nevermind, ill post a pic .... no changes in my tune, just swapped cams ..... the cosi's are the solid line

 

The dotted line is the previous dyno overlay? Regardless, it definitely makes it look like its more fun than what I have going on right now. Anyone want to buy some slightly used S1's?

 

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 gained 1000rpm in spool and almost 180wtq at 3300rpm by swapping cams?

 

This was on the GSC s1 map? What about on JB's cosworth map?

And wow, thats amazing gains.

 

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

 

The 1000rpm better spool and approx 180wtq difference at 3X00 is what is confusing me. Is one pull in a different gear than another?