Where is every one hitting red at ?

[projectka-t]

ok i spoke with JWT about one of there ecu's and they will remove the top speed limiter and also bumb the rev limiter to 7 grand to replace the 6 grand. with all of this being said i was currious who has past this line "7" and how there motor held up?

[Structure240sx]

many guys take it to 7200 some 7500. once u start getting closer to 8k it seems bearings will start to be thrown. sure if you shift once at 8k nothin will happen, but this also isnt useful without a large turboa nd a good flowing motor.

only time i take it to about 7k is at the track. no need for it on the street

[Fenvy]

also, you can probably feel lack of increase of power after about 5k rpm on the stock ka, I wonder how that may differ in kat

if you are not making power at high rpm then there is no incentive to go there

[nonchalant rage]

cams will definitely push the powerband up on a ka. turbo will add to this.

[projectka-t]

great info, thanks alot . my block is now home from the machine shop now .020 larger and was just currious if the JWT ecu would do or if i should look into the AEM unit . im planning on going all out KA-T and didnt know if there was any need to go over 7 grand. kinda a noobie question but i thank every one for the info

[MarkEmark]

S14's redlines are 6500 from the factory, S13 KA24DE's are (IIRC) 6900 rpm, and the only difference between those two engines is that the S13 KA's had hotter cams in them...so S14 engines were always built to be able to go up to 6900 rpm, and the JWT just allows this to happen (and 300 more rpm, which isn't that much). To be safe I'd never shift it past 7000, the vast majority of people aren't making power past 6500 anyway. Stock KA's peaked at 5500 rpm.

[4felix20]

i'm running a T3 and i barely ever go past 6000RPM. there's just no power up there for me.