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JB4 Logging, stacking and Map 6 Discussion

shovelhd

Autocross Newbie
Location
Western MA
So I've been going through some of he old posts in this thread and came across this Map 6 from user Perry01 from around 2017. Holy smokes...the car pulls hard above 4k. He also has a more agressive map with more above 5k. I didn't get a chance to go pedal to the floor...but even at 3/4 throttle...the car pulls harder than Map 3.

Will my motor asplode?

View attachment 231231

Potentially.
 

goodvibes

Go Kart Champion
Location
IL
Got some logging done with Map 4. Trying to take advantage of this cold weather and build map 6.

Can someone give some settings for map 6 to try?

Logs https://datazap.me/u/jackphom/jb4-m...-pull?log=0&data=1-8-11-12&solo=11&mark=57-81

https://datazap.me/u/jackphom/map-4-second-log?log=0&data=1-4&solo=4&mark=212
Map 4 looks great. I'd leave it over the winter and maybe tweak up when summer gas returns. You can usually add a pound. Winter air will become more dense and gas has less knock resistance so if it were me. I wouldn't put it on the edge at this time of year, where you're at.
 

OceanJack

Passed Driver's Ed
Location
NJ/NYC metro
Car(s)
Mk7 GTI
Map 4 looks great. I'd leave it over the winter and maybe tweak up when summer gas returns. You can usually add a pound. Winter air will become more dense and gas has less knock resistance so if it were me. I wouldn't put it on the edge at this time of year, where you're at.
Thanks, I think this may be it for me with the jb4 and time to get an accessport.
 

goodvibes

Go Kart Champion
Location
IL
I'll give it a go, isn't it still 6 psi +?
Yes and not as tapered up top, I think, but your map 3 is almost clean and it won't hurt anything. I believe Map 4 was tailored for 7 speed Auto Rs and the way they launch. Map 3 should be a bit stronger on a full run.
 
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