ko3s boost figure

[shaft69]

Has anyone got print out of there boost figure print out so i can see?? think having a bit of problem with mine, mate had it on his rollers today hitting 20psi at 3000rpm, but drops off to 12 at 6500rpm. So need figure out if it map telling n75 to drop boost or something else. Forge actuator with yellow spring cranked at moment.

[Chris.]

thats normal.

[Dsport]

There you go

[Chris.]

[shaft69]

Lad who got rollers think dropping off to much tq figures are brill 283ftlb but doesnt like boost. Line. Hits 19ish psi then just drops off best see if can just duty cycle of n75 or get rpm dependent electronic boost controller.

[Chris.]

Doesnt look too bad.

You could possibly hold a slight bit more boost through midrange but what you have there is nothing to worry about.

[Prawny]

that's absolutely 100% normal, and no amount of mapping or fancy boost controllers will ever improve it.

The ko3S simple cannot flow any more boost than that as the revs climb. I too thought mine was at fault at first, tried an MBC, even tried an expensive quality EBC, but pretty soon realised that even with the EBC at 100% fixed DC, it did exactly the same thing, shot up to 20psi + (more like 25-26 on 1005 DC) but by 6500rpm it was down to 12psi or so.

Tiny turbo for you, punchy low down, sh!t at the top end

[shaft69]

Ye boys spoke to bill (badger5) today have me run down on Ko3s boost pressures, leave as is now look towards either k04 hybrid or gt2871r next year.

[shaft69]

Spoke APR today says will have to refit old actuator car not tuned for uprated one. Have checked old rr figures was actually making more power with standard actuator than with forge with yellow spring.

[littco]

If you have an uprated actuator fitted it should make potentially more boost, unless it's over boosting .

Why can't APR tune your map for the uprated actuator?