Pai nice idea BUT the 2JZE u have in there is already i great motor...
I decent head job (Ferrea valves, cams, valves, and maybe HKS cam gear(s) *if u wanna eliminate VVTi and a single turbo setup w/ a standalone and ur good.
One of my close homies has a single turbo Gunmetal Sleeper IS300.
Ive mentioned it before.
Has the IS300 factory N/A 2J but w/ TT Supra pistons, and rods, the headwork I described above, a T67*if im not mistaken and 4" dp, piping and a monster FMIC, TIAL w/g, HKS CF exhaust, Tein Coils, etc etc.
He still has the over-the-valve-cover throttle body but swapped for a GS throttle instead.
Built by Herby (KAW auto) next door to JDM of Miami...and
dynoed @Fynetuned/ tuned on the skreet by Lance *of toyomoto fame
On pump gas 550+whp....C16 race fuel 700+whp.
Idles nice...A/C P/S...leather lol...perfect sleeper....ive been in it hundreds of tims and IMHO its
the perfect sleeper.
I always tell him he shoulda stopped when he was making 430whp on pump gas and running the previous turbo setup... bt power is like a drug when u run JZ motors.
The most expensive part of his setup is the JDM 6speed Getrag tanny ($3500)...and the RPS clutch
but u can stay w/ ur 5spd...but ull need a good clutch setup to put down the power consistently....
I remeber duing a roll @40+ w/ a 1K GSX.... when he foored it the IS300 was istantly sideways lol....
The stories of raped M3s, SRT4s, GT0s, Zo6s is endless....
What route u choose to go all depends on what hp figure ur looking to achieve...
Best of luck with ur idea... the IS300 is def slept on.
Great platform...great balance...and great looks.
***yo homie PM me if u want more info on parts, costs, shops, or if u wanna set up i meeting with my homie to check out the car and get some ideas.
Later