Rb20det. Boost Under Wot Drops To 0.5 After 5-6k. 0-100-9sec

[robots]

Hi!

Here is my setup:

rb30det

040 fuel pump

stock everything(exhaust)

3.9 final gear

205/55/r16 tires

I was trying out my car today. My friend had my mobile with countdown timer , so he was sitting in the passenger seat, counting.

With moderate spin from start - high 9sec to 100.

Feels quick, but timer spoils the fun LOL.

I even tried to use 2nd gear(no upshift to 3rd) to 100. Same result.

Surface was a bit rough. Asphalt covered with dust.

What I was able to see though, that in 1,2,3 gear after about 5-6k the boost gauge needle drops from stock 0.7 to 0.5. Maybe a bit earlier. But I can't say for sure. Car Idles fine. No jumpy revs.

No leaks after AFM/before turbo.

So what's causing this boost drop ?

And what about acceleration ? I think it should be in 8sec range.

Thanks!

Edited March 29, 2007 by robots

[R31Nismoid]

Thats how the stock RB20 turbo/actuator is dude.

You need a stronger actuator, or a larger turbo (well.. both would be ideal).

The little RB20 turbo does have a fair task on its hands

[robots]

R31Nismoid, c'mon.

It can't be 9-10 sec to 100.

Something ain't right there. It should be around 8sec mark.

I have stock exhaust btw. So where should I dig ? Gap the plugs to 0.8 ? Clean coils ? Try manual boost controller ?

[R31Nismoid]

You asked about the boost drop, thats what my response was too.

[robots]

I know. But that has to do with boost drop, ain't it ?

[R31Nismoid]

ye