‘13 ZL1 Mods on the way!

[Ckmerc]

Originally Posted by bsn

Generally, 80% is considered the maximum recommended duty cycle. Some people run a much higher duty cycle but I would suggest you get a second opinion. Fuel is the key to long life on a performance engine, one lean spike under full power and you'll be replacing pistons. With only a boost a pump I would think your E85 duty cycle would be much higher.

Thanks understood..

As mentioned above…I gave my performance mod specs to a friends Performance shop in IL he used for his nova mods with same engine. They were in agreement with my performance mechs conclusion on duty cycle. My mech has modded many of these over the years (a few I know and would not go to anyone else) and has never had a failure related to using this mod.

With the above said…when I do the cam, exhaust mods in a few yrs ….will probably upgrade injectors.. it may be a few years as I would like to stay married this time ��