Originally Posted by
mseidl113
As long as you take the right steps the SOHC can be a great engine. I just took my boys STI to a guys house to get some stuff puton and he had a built SOHC sleeved and pushing about 400hp with a turbo a little smaller then a t3/t4.
If the turbo was "a little smaller" than a T3/TO4 he was feeding you bullshit or you misunderstood his turbo size (various wheels, covers and turbine housings for the T3/TO4). Mike Yonke's T3/TO4 60 trim T31 was barely making 400whp