Corvair Center Forum : Corvair Center Phorum
F/S NOS Turbo Housing with larger nozzle A/R
Posted by: tomkeo ()
Date: February 08, 2020 05:37PM
This exhaust housing has an A/R number of 0.8 which is approx 15% larger than the stock 180 turbo nozzle area of 0.7. This means reduced back pressure and better detonation control at high boost pressures. This will delay boost build-up slightly but will provide a significant power increase at higher rpm's. There is little benefit to using this housing on a stock 180, but if you are using a larger carb (Weber) or an E-flow compressor, you will see a significant increase in power. If you have ever wondered why the horse power peak on the 180 turbo occurs at 400 rpm lower than the 110 engine, it's because of back-pressure. (Even though the camshaft is the same.)
The housing will bolt directly to the F type turbo but you will need to change the turbo outlet pipe and provide a flange and flat gasket.
I have 2 units available. PM me if you have questions.
$100 ea plus shipping
Edited 1 time(s). Last edit at 02/08/2020 10:18PM by MattNall.