Boost and High compression example

[ISpoolOldSchool]

No, but the discussion is that it CAN be done. I'm hoping for 93 octane, 11.5:1SCR (9.1:1 dynamic), ~215psi cranking pressure, intercooled (perhaps alky), and 4-6psi of boost not to break my block

ah i got ya now, shoulda read better i guess haha.

[ssdurango]

I ran 11.0:1 and 12 psi boost on a proapne 3.4. Broke a ringland on the dyno. Watch thoose ring end gaps!!

[Joseph Upson]

High compression + boost = excellent power and fuel economy due to the increased efficiency resulting from the higher compression ratio. The newer boosted GM cars all have compression ratios above 9:1, the Grand National has not been made in over a decade.

[Husky]

Can't support this, as I threw the magazine away a while ago, but... The Red Bull Solstice GXP had something like 14.4:1 compression, AND high(like, 30 pounds) of boost in its initial configuration. It was de-tuned from that level to take it DOWN to around 550HP.

Again, can't verify that claim, just something I read.

[34blazer]

Can't support this, as I threw the magazine away a while ago, but... The Red Bull Solstice GXP had something like 14.4:1 compression, AND high(like, 30 pounds) of boost in its initial configuration. It was de-tuned from that level to take it DOWN to around 550HP.

Again, can't verify that claim, just something I read.

and its also direct injected, which leaves more cushion for high boost/compression

[Husky]

and its also direct injected, which leaves more cushion for high boost/compression

Very, very true. Probably should have mentioned that in my original post.