so it's one of these..."well, it's time to replace the coolant, so I might as well do this while I'm at it" kinda things???

 

For the most part yes. I have yet to find a High Performance water pump.

 

When I bought my waterpump from GMB they were advertising improved flow over stock. 10% is what they were saying if I remember correctly. I know with the HHR fan, 180 T-stat and GMB my coolant temps stay way low. During the winter I run my stock 200-210 T-stat.

 

Very nice Write up Eimer!

 

Ok I did put the 3922 in my truck and I dislike them, gonna go back to the stock 5224. Seams like I lost a lot of power by switching, and the high end engine noise sounds horrible, almost like a sick engine, nothing is pinging, just blah

 

3923 is where you want to be

 

I'm one heat range colder than the factory plugs (6 heat range) and they have worked flawlessly. The plugs I'm running are NGK BKR7E stock# 4644.

 

Yea so apparently the 3922 are 2 heat ranges cooler than the stock ones. I will keep them around until I do cams. I will go buy some 3923's and try them out. Whats another 10 bucks

 

Im running the same plugs as Blown and they seem good to me. I like NGK better than Autolite, they arent made in China.

 

Just a visual for people
3922 on the left - 5224 on the right

IMAG0366.jpg