Update on result of mods....
I installed my Nitrous system 4 years ago with the car showing 85,000 miles on it and it did not use one drop of oil back then....Now the car has 115,000 miles and is using more then one quart of oil between oil changes.... This is due to piston ring failure and or imperfections in the cylinder walls most likely caused by the continued use of nitrous... I was aware that Nitrous wears out motors prematurely and especally the smaller 4 and 6 cylinder motors, but I did believed the 1uz-fe could handle it better then most others...It is now clear to me that Nitrous will wear out even the 1uz-fe V8 motors too...
So if you care about the life of your engine, I would advise you not to ad a Nitrous kit.... I must now contemplate a more powerful engine swap and or engine bore and rebuild sometime in the near future....That is just fine with me as I was going in that direction anyway...
Just thought I would share this info. with any readers that maybe considering adding a 150 nitrous system to their SC3 or SC4.... Still I must say having the Nos system for over 4 years has been vantastic and very effective when racing....