370cc injectors
Thread Starter
Senior Member
Joined: Jun 2001
Posts: 3,443
Alright just to bring this back to the main point, 370cc injecters with a moded ecu by jet sounds kewl right? Somebody said that the na 300zx ran 330cc does that sound better maybe? and 200 bucks for used? Sounds like alot I thought new ones ran about 200. But what do I know.
Joined: Aug 2000
Posts: 6,344
I don't trust over the phone / off the shelf ECUs. Sure you can get the 370 cc injectors, but I don't see how Jet will able to reprogram your ECU without having your car at their facility. Unless they have some kind of high tech state of art simulation program that can predict your car's behavior, but I doubt it. Your best bet is get the injectors, buy a Fields fuel controller or fuel pressure regulator. Take your car to a good tuner and have him tune your car.
Originally posted by max'n out
Alright just to bring this back to the main point, 370cc injecters with a moded ecu by jet sounds kewl right? Somebody said that the na 300zx ran 330cc does that sound better maybe? and 200 bucks for used? Sounds like alot I thought new ones ran about 200. But what do I know.
Alright just to bring this back to the main point, 370cc injecters with a moded ecu by jet sounds kewl right? Somebody said that the na 300zx ran 330cc does that sound better maybe? and 200 bucks for used? Sounds like alot I thought new ones ran about 200. But what do I know.
Thread Starter
Senior Member
Joined: Jun 2001
Posts: 3,443
Originally posted by 1MAX2NV
I don't trust over the phone / off the shelf ECUs. Sure you can get the 370 cc injectors, but I don't see how Jet will able to reprogram your ECU without having your car at their facility. Unless they have some kind of high tech state of art simulation program that can predict your car's behavior, but I doubt it. Your best bet is get the injectors, buy a Fields fuel controller or fuel pressure regulator. Take your car to a good tuner and have him tune your car.
I don't trust over the phone / off the shelf ECUs. Sure you can get the 370 cc injectors, but I don't see how Jet will able to reprogram your ECU without having your car at their facility. Unless they have some kind of high tech state of art simulation program that can predict your car's behavior, but I doubt it. Your best bet is get the injectors, buy a Fields fuel controller or fuel pressure regulator. Take your car to a good tuner and have him tune your car.
Im working on putting stuff together so I still got time.
Joined: Aug 2000
Posts: 6,344
First, if you do install the injectors without anything else, you won't able to go WOT. Your car will be so rich and it WILL stall. Get the fields fuel controller or get a fuel pressure regulator with a boost vacuum port.
Strap the car on the dyno and make 1 run or 2. The car will stall and stumble at higher rpms. Read the print out and check the A/F ratio curve. Check to see at what RPM the car is running rich, and adjust the FPR or fuel controller accordingly. Make few more runs and keep adjusting. Find a setting where you get the most power and still safe on the A/F ratio. Just don't go too crazy and lean it out too much. If you don't plan on racing, I would just adjust it alittle bit on the rich side.
Strap the car on the dyno and make 1 run or 2. The car will stall and stumble at higher rpms. Read the print out and check the A/F ratio curve. Check to see at what RPM the car is running rich, and adjust the FPR or fuel controller accordingly. Make few more runs and keep adjusting. Find a setting where you get the most power and still safe on the A/F ratio. Just don't go too crazy and lean it out too much. If you don't plan on racing, I would just adjust it alittle bit on the rich side.
Originally posted by max'n out
Thats my basic plan but I don't think part of that tuning is moding the ecu. But I don't fully understand what they do tune
Im working on putting stuff together so I still got time.
Thats my basic plan but I don't think part of that tuning is moding the ecu. But I don't fully understand what they do tune
Im working on putting stuff together so I still got time.
Thread Starter
Senior Member
Joined: Jun 2001
Posts: 3,443
Originally posted by 1MAX2NV
First, if you do install the injectors without anything else, you won't able to go WOT. Your car will be so rich and it WILL stall. Get the fields fuel controller or get a fuel pressure regulator with a boost vacuum port.
Strap the car on the dyno and make 1 run or 2. The car will stall and stumble at higher rpms. Read the print out and check the A/F ratio curve. Check to see at what RPM the car is running rich, and adjust the FPR or fuel controller accordingly. Make few more runs and keep adjusting. Find a setting where you get the most power and still safe on the A/F ratio. Just don't go too crazy and lean it out too much. If you don't plan on racing, I would just adjust it alittle bit on the rich side.
First, if you do install the injectors without anything else, you won't able to go WOT. Your car will be so rich and it WILL stall. Get the fields fuel controller or get a fuel pressure regulator with a boost vacuum port.
Strap the car on the dyno and make 1 run or 2. The car will stall and stumble at higher rpms. Read the print out and check the A/F ratio curve. Check to see at what RPM the car is running rich, and adjust the FPR or fuel controller accordingly. Make few more runs and keep adjusting. Find a setting where you get the most power and still safe on the A/F ratio. Just don't go too crazy and lean it out too much. If you don't plan on racing, I would just adjust it alittle bit on the rich side.
Joined: Aug 2000
Posts: 6,344
For Field's SAFC check this.
http://www.groupbuycenter.com/buy.asp?row_id=4165
As fuel pressure regulator there are a bunch. XS engineering, Paxton...pretty much look for an universal EFI fuel pressure regulator.
Since you have the SC, I would go with Vortech's Super FMU.
http://www.groupbuycenter.com/buy.asp?row_id=4165
As fuel pressure regulator there are a bunch. XS engineering, Paxton...pretty much look for an universal EFI fuel pressure regulator.
Since you have the SC, I would go with Vortech's Super FMU.
Originally posted by max'n out
Do you have a link or a few links for the fields or this reg your talking aboot.
Do you have a link or a few links for the fields or this reg your talking aboot.
NAs use 259cc, TTs use 370 cc.
Regardless, you need the EPROM to be updated since the duty cycle will be different. Having just an air/fuel controller is useless w/o an EPROM modification because the car will not run properly unless the ECU knows the correct impedence/ohm/whatever of the injector.
Also, $200/set for used NA or TT injectors is normal. You'd spend about $600-800/set if new.
Regardless, you need the EPROM to be updated since the duty cycle will be different. Having just an air/fuel controller is useless w/o an EPROM modification because the car will not run properly unless the ECU knows the correct impedence/ohm/whatever of the injector.
Also, $200/set for used NA or TT injectors is normal. You'd spend about $600-800/set if new.
Thread
Thread Starter
Forum
Replies
Last Post
jmlee44
4th Generation Maxima (1995-1999)
8
Oct 2, 2022 02:13 PM
