Twin to Single

[ReubenH]

Sweet, but that's on an early EJ208 right? I.e. an 8.5:1 compression ratio. The EJ206's and late 208's are all 9:1.

[gazzy2000]

 ReubenH said:

Sweet, but that's on an early EJ208 right? I.e. an 8.5:1 compression ratio. The EJ206's and late 208's are all 9:1.

na, mines a BH5C EJ208 and the WRX ECU is got is bonified 9:1 according to my research and the tuner i got it off.

[ReubenH]

Well then, sweet, you should have 9:1 in the 208 as well. I recently got some data saying the BH5A and B EJ208's are 8.5:1, and the rest of the BH engines are all 9:1 (all 206's, and the C and D 208's)

[mitSUBishi-guy]

 funkytown said:

while i agree with the gist of the comments preceeding this, have you actually driven one of the Twinscroll gen 4s? while the are quick'ish.. they feel very very linear.

Hmmm not so linear imho. Our BP GT has a typical turbo power delivery. Laggy at low revs and then pulls some numbers when the boost comes on before tailing off at high revs. Not really so different to BH except no dead spot between turbos. But guess every car has it's own slight differences/characteristics even amongst the same production run...

Agree though that BPs are getting cheaper - might just be better to save a little more and buy a car that came out of the factory with 1 turbo.