Problems with my Twinscroll Turbo - Please help :)

[cdrazic93]

Originally Posted by Tiz

Update: My tuner found the missing power. Now the car makes approx. 410bhp and 500nm torque. More or less flat torque curve starting from 3300 rpm.

BUT: The OEM AT transmission cannot handle so much torque. Does anyone know about an upgrade? I understand that SSP is developing something?

Thanks.

Try to break the AT transmission, you'd be the first to report it on this forum. There's a Holinger sequential upgrade but good luck financing that, SSP makes upgrades for clutch packs/valve bodies and TQ converters, not to mention you can put together an AT cooler as well.

[cdrazic93]

Originally Posted by Tiz

I believe the diameter of one of the pipes was too small -> resulting in back pressure and high intake temps.

Jesus that's one hell of a small pipe, no way the stock piping was that limiting, FBM got 700+ hp out of their built block with stock 2.118" exhaust.

[sw20kosh]

on 91 octane in CA our GT3076R's max out at 280 whp on pump fuel regardless of how high you bump up the boost. Have to remove so much timing to stave off knock.

Which is why I am now flex. Hitting:

275 at 6 psi

340 at 9.5 psi

400 at 14.5 psi

(dynojet whp)