Mazda RX7 twin turbo ( 1990 )

[88GT-R]

Originally posted by fc3sPAT
regarding the TI and TII issue, i have recently taken my "so called TII" to Geff at portsmouth, basically just asked him the spec of my engine as it is just bizzare when i try to order parts and it turns out they are wrong??

how wrong can it be when my car says TII on the side and i ask for TII??? :confused: and it turns out that many of the S4 (TI) parts are now non existent now!!!

anyway, it turns out i have a TI(S4) block which runs lower compression enabling higher boost, but i have TII(S5) turbo, intercooler, wiring looms etc., all this has enabled me to run 5.5-low 5\'s 0-60 times, and with a top speed in excess of 155mph.

so, from this i have gathered that the S4 is a TI (as Geff says), and that the S5 is the TII,

how reliable all this is, i will let you decide for yourselves,

Patrick,

As i said in my previous thread... tuners do use the TI...TII to differenciate tuning parts etc. You guys have seen the photo of the origanal turbo...and that is why the FC3S is a TII.
I hope to see you all over the weekend.

John
88 GT-R