Originally Posted by
bentgear
Houston, I know you got to be tired of pipe/header questions "but", setting up my spare dirt oval car for someone to use this weekend. Always ran a plus 4 on it with 9901/41021 but it shat its guts thru the exhaust after 10+ gallons last weekend. Going to have to use a N21R purple head 3 port that Jim worked on a few years back. Problem is the pipe header combo. What i always used with it has disappeared out of the box.
Track will be short, most likely around 150 ft run line. Car is setup to drive thru the corners and power off, not do the drifting stuff.
Pipes available are:
9901 41005 - 41020 - 41021
Dynamite platinum 053 MR stk header
JP 3. Stk header
JP 4. Stk header
normally I would just test, but since this is a bigger race time will be limited. Can ya help a guy get his oval fix?
The jp-3 will provide the most rpm out of those pipes , jp-3 not too bad , usually not too great on mileage though
9901ss /41021 would be my next choice
For overall grunt and rpm I would recommend putting the 41005 on the 053mr though , probably what I would use
Fyi , check the rod in that n21r limited
