narps?

[chr0nik_sm0k3]

Originally Posted by Transman

Ive always been told to be careful when you buy a 240. You should always make sure that someone has installed the hardened narps. Not all narps are blow proof. you really dont want the narps to blow while bangin' gears. Ask me how i know.

A narp (short for "intake narp") is a valve under your intake that controls differential pressure and vacuum flow across your intake valve. It is critical that your narps be properly calibrated to your engine displacement. Nissan had a run of improperly calibrated narps that caused a cylinder reversion problem. Luckily they corrected that problem in 1993. There are still many Nissans out there with improperly sized narps.

Ask that guy Pauly Walnuts. I warned him about it, but he didn't believe me. He bought the teflon coated narps. I told him to get the hardened titanium ones. He didn't take my advice. His cylinder reversion was so pronounced that it caused his timing chain to break. He tried to save money and it cost him more in the long run.

Worst part about the teflon coated narps is that the teflon wears out over time. This causes the flow pattern around the narp to expand and cause cylinder reversion. There are few mechanics that truly understand narp function, much less diagnose it.

what do u guys think