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i measured back pressure on a -10 equiped rb2630 we had at work that just would not makle power over 18psi.

on 14psi there was 25psi back pressure. on 18-20psi it had 35-40psi back pressure.... (30psi boost guage the needle wraped around to 0.. and our dyno can only read 30psi.

What power did that particular engine make on your dyno?

Just need someone with 2530/-5 to take the plunge and try a cropped GT30 exhaust wheel as above and use the HTA 68 front wheel and hope for the best! If its to laggie 3ltr it!!

you want me to try what? :D

i'm in Melb, dealt with Stao quite a bit before with my GT-T, nice little high-flow on that car, punchy little number.

So what are we trying to do with the 2530's? in laymans terms, i'm terrible when it comes to turbos, other than a 3071 is less laggy than a 3076, basic crap like that :D

are we trying to make them more responsive and powerful at the same time, or just more top-end out of them? I'm running 2530's in the R

Attempting to push 2530's harder! Whats the consensus of whether to open up the entry to the wastegate flap on hks 2530's? More area on the flap would apply more force to blow it open?

These could be my next upgrade (4th set) of actuators the dual ports look real nice!

http://www.full-race.com/store/turbos/borgwarner-efr/efr-dual-port-internal-wg-actuator.html

Now i wonder if running boost pressure to the bottom side of the gate will enable me to crack 30psi up top with the 19psi actuators or head straight to the 35psi units? Be interesting to see base pressure with the 35psi ones! :domokun:

The reliability of the stock extruded manifolds are great but at 460awkw i wonder if theres power there aswell?

Nice looking actuator!

Where did you get the manifolds extrude honed?

Berry's GTR used to be (still is?) on stock manifolds, surely they'd know if it's a restriction so maybe call CNJ Motors in Queensland and see what they have to say?

UAS organised the honing back in 2004 not sure if there still doing it..

Maybe hypergear could join the conversation with a few options on high flow bolt in low mount GTR turbo's that give 50-60AWKW extra than current offerings without masses of lag??

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