have to agree here with blown. i tell people the same things when building motors for turbo import street cars. we bump supras all day to 9 or 9.5:1 to up the response time, run less boost and keep her 91 oct friendly.
Keeping the compression higher and boost lower results in some sick throttle response across the rpm band, which is great for passing while cruising without sounding like your going wide open to 8k rpm. from a roll races catapult the car forward if gearing is right. plus once again, the off boost driving is much nicer.. much easier to drive a car around a parking lot, or in traffic like on a cruise night or something.
im building a similiar set up.. 9:1 d1sc intercooled 355. I did opt for the forged crank and rods to go with the pistons, as this car is a street car, but when it hits a track , it would live at road atlanta, so thats a ton of high rpm corners and straights. makes for much better out of turn torque on twisty roads.
Last edited by Majik16106; 07-19-2006 at 03:54 PM.
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