Technical Topics specific to the Hatchback body - NOT where you post pics/build specs of your car.
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By jdmb20beg
#156521 whats up guys? Okay so i have a b20b swap in my eg hatch i have a p72 ecu and am wanting to get a lil extra power out of my ecu what would you guys reccomend? a s300 chip? a new wiring harness? etc. thanks for your help
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By Dippin_EG
#156523 you should run a b20 ecu or an ls ecu imo
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By chrono404
#156525 Better yet you should get a ECU chipped and tuned for your engine. If you want a bit more power out of her this is the best way to do it.

Running it on a p72 wont do well for reliability in the long run.
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By jdmb20beg
#156609 yeah ive heard the p72 isnt that good of a ecu for the b20b.
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By JUICE
#156631 thats a GSR ecu. you need a P75 to run properly STOCK. if you go the chipped and tuned route, you'll be fine. and, runnin with that ecu, doesn't it have your rev limiter in the 8k region?... dont think the b20 would like that too much.

gettin on it and missin a shift could equal bad things without that limiter to catch it. a stock B20 shouldn't go past about 6800
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By jdmb20beg
#156689 yeah it will buzz up to about 7 something i have forged pistons but i know that cant be good for the rest of the internals and btw just so you guys know i didnt get that ecu it was in the car when i bought it. but thanks for your help guys. appreciate it.
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By Greasedmonkey
#156749 Forged pistons dont raise your rev limit. Valvetrain and rods will allow you to rev higher.

Get a p75 for your motor and then chip and tune it.
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By jdmb20beg
#156907 i know i meant that the pistons are safe with reving it that high just not the rest of the internals