stock bottom end with forged Pistons good for nitrous? If so what would be a good shot? 100-150 is the range I want no more then 150 though.
You may want to check with the Mach1 forum and review what is happening with different internal combinations. While the pistons in these factory motors are not forged, it will give you an idea and if you are going to endeavor this, your motor needs to be able to take a pounding. I did a ProCharger P1 blower on a non-forged motor with 10 lbs of boost without problems. However, I did not drop the clutch or race the car, just accelerated on the autobahn over a three-year period. I upgraded to a D1 with 19.88 lbs of boost AFTER forging internals, upgrading the clutch and transmission, and adding a girdle to the rearend. My view; if you are going nitro, forge your power plant and ensure your transmission and rearend can handle the torque.
Ok it's going to be a built 302 bored .30 over so 306 10:1 compression aluminum heads (performer rpm) a mild .565 lift hydrolic flat tapped cam. Vic Jr intake with a 670cfm holly carb just stock crank and rods but with arp bolts. Trans is a built c4 reverse manual value body 4000 stall. Rear end is a 9 inch 35 spline axles spool with 4.56. So it will be a fun little street car that will turn 6300 rpm but on the track just wondering about nitrous would be a good idea. Had this same combo in a comet never used nitrous though but builder said it was good for 150 hs and wondering if anyone else with forged pistons and stock rods and crank though has done this. Looked on mustang forums and people are saying 100% stock bottom ends they have been spraying 200 horse shot for 2-3 years.
The pistons, rods, and crank aren't the weak link, the block is. If you keep it under 500hp and keep the rpms low you should be fine.
I`d feel much better w/ a set of $300 scat rods in it,stock crank & forged pistons & you will be good to go.
I ran a 125-150 shot for many years (12 or 13) on a stock bottom end with cast pistons. If you ease into the spray so you don't get a pressure spike you can get away with it. Good forged pistons with a good tune is the way to go.
Finally an answer I'm looking for haha thanks. Thanks my plan rolling in it in 2nd with forged Pistons and not an extreme hit of the nitrous I thought I'd be ok thanks
Don't know if they're around anymore but back then I ran a Jacobs Nitrous Mastermind. You could set the rpm that the nitrous starts flowing, the ramp rate, the rpm it shuts off, it monitored fuel pressure, retarded ignition timing when the nitrous came on, and had a rev limiter. It basically babysat the engine.
Man I have ran so many bottles thru stock 5.0's its not funny. These are 1989 ish Mustang 5.0 engines with the good pistons. Always 150 shot min.
Make sure it has good head gaskets when it goes together. Follow the nitrous company's timing recommendations and use a good fuel. You should be just fine with a 150 shot.
