I had a talk to my mech today about the intake manifold/plenum and throttle body inlet.
I am now considering getting this (as suggested by w0n):
http://www.atsracing.com/Parts.mvc/Details/E-ATS-TBI-PAnd this:
http://www.atsracing.com/Parts.mvc/Index/ATSMANIFOLDI've emailed ATS with some questions, but perhaps there will be some people on here who can answer them for me. Remember that my engine is a 1990 Gen 2 3SGTE.
Firstly, does anyone know how the ATS replacement throttle body inlet (the first link above) achieves a higher diameter? Is it simply because it doesn't have the locating 'lip' like the stock one does?
Secondly, when using the ATS throttle body inlet, possibly in combination with their modified intake manifold/plenum (the second link above), can my stock 1990 Gen 2 throttle body be retained, or would I need a new one with a larger diameter? Just to confirm, my stock TB appears to have a 55mm butterfly or maybe a bit smaller, and 56-57mm diameter at each face of the TB.
If no one has any definite answers on here that's OK, hopefully I'll hear back from ATS tomorrow anyway.
In unrelated news, I'm expecting the correct Full Race exhaust manifold to arrive later this week, so my mech will be able to continue working on my car again!