Stock injectors should be fine at 5 psi but you may want to play it safe and upgrade injectors by about 10% in size. If you go up in size way to much you will run way to rich unless you have some means of leaning out the mixture. Perhaps an SAFC.
F/I forum!
- Thread starter spoolinmp3
- Start date
Protege 5
I'm new to the board and to the world of Mazda. I have had my P5 about a week and am driving my wife nuts with suggestions. I don't know what the engine code is for the P5. Is that the one CAR BUFF was talking about? I'm kind of in the same boat as him. I want more Hp. I'm not looking to enter the NOPI Nationals or anything but I want a clean set-up, good power, and suprise to those who try me at red light or the weekend trips to the drag strip. So far I've looked into the Injen CAI and Tanabe (sp) cat-back exhaust. Any suggestions are welcome and appreciated. Thanks.
I'm new to the board and to the world of Mazda. I have had my P5 about a week and am driving my wife nuts with suggestions. I don't know what the engine code is for the P5. Is that the one CAR BUFF was talking about? I'm kind of in the same boat as him. I want more Hp. I'm not looking to enter the NOPI Nationals or anything but I want a clean set-up, good power, and suprise to those who try me at red light or the weekend trips to the drag strip. So far I've looked into the Injen CAI and Tanabe (sp) cat-back exhaust. Any suggestions are welcome and appreciated. Thanks.
The engine code for your P5 is the FS-DE engine. good first mods would be intake, exhaust, header (if not planning to go FI). If you want more power for races then Nitrous is your best bang for the buck. General rule of N2O is take your peak HP divide by 2 and you have your max shot safely so your P5 would be good for a 65 shot of ZEX.
Would that be a 65 "dry" shot or a "wet" shot. Noone can give me a definite answer as to which is better, safer, less expensive? I am assunming, (there I go again), that you can use Nitrous Oxide in a moderate fashion and not have to worry about tearing stuff up in the motor, right? Being able to eat a Civic downtown on a Saturday night would be cool, but not if it's going to cost me a "s"-load in repairs or trying to explain to my wife why I caught a taxi home instead of driving the car!!! 
I think at that low of a shot either is just as safe many will argue that the wet is better but i have seen a few single fogger wet setups backfire and man its not pretty. With our manifold design I am afraid that with a single fogger wet setup that fuel will puddle behind the butterflys and when they open backfire galore. The dry setup only sprays N2O into the intake tract and increases fuel through the pressure regulator by giving it positive pressure. I haven't seen a dry setup go bad yet when they were using it safely but yes I have seen enignes blow from a dry setup but that was do to guys dropping 120 pills in it and basically baselineing the shot and blowing their motors. If you set it up liek the instructions say and don't abuse it you will be fine.
