so i just swapped in a 97 jdm b20b in my teg and did few runs shifting at 6700and accidently once at 7100 for a sec when i downshifted. when i got home i checked the specs on my motor and it said the redline is 6300. should i be ok i have a chipped ecu with a ls basemap tuned on a mystery motor. what should i shift at safely? it feels like it makes power untill 6700.

 

Just a stock b20? Stock valve springs, cams, ect? My opinion...not much more than 300rpm or 400rpm past stock redline. The last thing you want to do is rev the **** out of it all the time and float a valve...

 

Truth! ^^^.. but dont b20 and ls motors have the same head basically? I would say that its safe to run the ls redline

 

^^long as it's not a p8r head. only difference is the intake cam AFAIK

 

Something else that just hit me...aren't the Jdm B20's labeled as B20Z motors, not the B20B's that are in the states?

 

my motor is bone stock and b20z's are usdm

 

B20z is just a higher CR version of a b20b

 

the 99-01 b20b's are the same as b20z

 

^^yup. so much discrepancy between with the b20's.
some 99-01's came with the p8r head as well