ClintUK

I seem to remember hearing the STI TMIC is better than standard ?

I have a 97 Classic with various mods including hybrid TD04, currently running about 300bhp 290ftlb.

The ECU map is conservative (due to problems when mapped - now sorted).

I am considering another remap to get the best out of my final set up, honest

Are there safety margins / performace gains to be got from a better TMIC, which do I look for and how much are they new / 2nd hand ?

Cheers.

scooby-k

clint, your IC flows 5.62 cu metres the sti5 the same, but with an aluminium Y piece which is considerably better than silicon Y piece.
the sti 7/8 IC flows 8.88 cu metres.
there are plenty of threads on here regards fitting.
ken

KIPS

https://www.scoobynet.com/projects-4...0-classic.html

THIS IS A GOOD FITTIN GUIDE
KIP
Or im running the group buy on the front mounts if interested

silent running

I'm agreed that the performance gains of the STi over the WRX item are down to the Y-piece as the cores are the same. But do you have test results on the metal Y-piece and its pipework vs. a one-piece Samco hose?

scooby-k

I'm afraid this was only my opinion based on the fact that all the sti's new and old were fitted with the alluminium one as standard. I'm not 100 % sure but I think the 2000 MY ppp package included the Y piece as well. Not sure if the samco one would be as good. I know the oe sti hose costs a fortune.

my point was that the 1997 IC and sti 5 ones were identical apart from Y piece which you have also pointed out.
ken

lightwave693

i would think that the samco Y piece would be as good as the sti alu one. the plastic one on the non sti has horrible ridges where i supose its meant to flex to fit, bit must play havoc with the air flow.... smooth is good and samco and alu both give that, think the standard Y piece is a smaller diameter too compared to alu sti one.

ClintUK

Cheers guys.
Think I'll be looking for Samco Y peice and leave it at that - my original plastic one is hard as nails and a real pain to reattach anyway.