just-some-guy

this is a double post...i posted in the GS forum..but no replies, so asking here now.. here's my dilemma. my brother is planning to turbocharge his GS430 thru the means of custom fabrication. i was wondering if anyone knew the Volumetric Efficiency (in a percentage) of the engine used in the 2001 GS430. i just wanted to know because i'm going to check out some compressor maps soon. any help would be appreciated. thanks.

here's my dilemma. my brother is planning to turbocharge his GS430 thru the means of custom fabrication. i was wondering if anyone knew the Volumetric Efficiency (in a percentage) of the engine used in the 2001 GS430. i just wanted to know because i'm going to check out some compressor maps soon. any help would be appreciated. thanks.