10-05-2007, 04:24 AM
Join Date: May 2007
Total Cats: 0
Turbo sizing. T3/T4
I have a 1.8L T3/T4 manifold. It is a one off similar to the BP manifold by ETD racing, it was built by ETD. It is kulaks old manifold from his 450hp miata. It came with a matching 3" exhaust from the turbo back.
I am shooting for 250-275whp, or less. I do not want to be blowing up transmissions. From everything I have read, the transmission is the power chokehold in the 1.8L setup, not the diff (as in the 1.6L) or the motor.
I want as low spool as possible. (Doesn't everyone?)
What are some good CHEAP (used or used OEM, possibly chinacharger, but would prefer used over a chinacharger) turbo's that I should be looking for. A ballbearing GT30xx is out of my pricerange.
Is a T3 S60 too big for my goals? Should I be looking for a small 50 trim vs a 60 trim?
From what I have researched, I should be looking for a 50 trim.
Edit: Plans for my setup:
1.8L BP T3/T4 Manifold (Have)
3" Turbo back exhaust (Have)
Hopefully internally gated T3 50 trim.
If not, then a TiAL 38mm rerouted back into the exhaust
Ebay FMIC core similar to savington's size.
2.0 or 2.5" IC piping
TurboXS RFL // GReddy Type S // TiAL 52mm (Whatever I find cheap used first)
RX7 550's (Have)
Standalone MSnS-e v1 (Have)
JAW Wideband (Have)
Toyota Corolla COP's (Have)
DIY Dual Feed fuel rail.
I haven't done the math yet for fuel (stock pump may flow enough with the 550's and standalone, unsure yet), but if required a Walbro 190HP and a Aeromotive AFPR.
Last edited by reddroptop; 10-05-2007 at 04:44 AM.