Subject	What kind of INJECTORS TO GET??<<555, 740??
Posted by	Z_Shotta on January 13, 2008 at 11:45 PM
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Message	I have a 1991 TT 5speed, all stock except, Still intercoolers, and a greddy catback exhuast. I wanna upgrade the injectors to 555cc.. But Since the price is the same more or less for the 740cc's, Should I got with those? Is ther a down side? I know u need the ecu upgrade, but forwhat its worth, should I just get 740's now, and continue the build, so I don't have to get rid of the 555cc., once I surpass there horsepower loads with mod's? Does gas mileage go down or to shit with the bigger injestors? Basicall, I need help!<<<
Follow Ups	What kind of INJECTORS TO GET??<<555, 740?? - Z_Shotta 23:45:01 01/13/08 740s won't work with old style setup. (n/m) - nemo1080 23:48:50 01/13/08 If you get 740's - ben7021 23:52:21 01/13/08 You will also need either the lower plenum - RHulme 23:52:50 01/13/08 What he's asking is... - 91300zxttkid 07:05:33 01/14/08 Waste a lot of gas? (n/m) - 550HPTT 07:10:40 01/14/08 LOL, a couple things - na300zx (OH) 07:51:07 01/14/08 You might want to go back and study up how EFI works - pacmanpth 08:06:52 01/14/08 ygm - MJawn 17:47:47 01/14/08 lol (n/m) - MJawn 08:59:53 01/14/08 common misconception.. - ali300zx 10:34:59 01/14/08 please dont answer questions if you're not 100% sure you're - Atl300zxTT 12:11:09 01/14/08 lol (n/m) - Kenny 13:45:12 01/14/08 Georgie Porgie pudding & pie - ZEngineer 17:38:15 01/14/08 I believe only the newer style 555 injectors are 615. (n/m) - Only1Z 23:13:18 01/14/08 Re: What kind of INJECTORS TO GET??<<555, 740?? - V8Killah 07:59:41 01/14/08 it would be choppy at the low end. (n/m) - nemo1080 09:06:38 01/14/08 Wow thanks for the lesson guys.. - 91300zxttkid 11:56:35 01/14/08 i believe stock turbos can go up to ~18psi - Alan(NJ) 12:03:14 01/14/08 In addition to whats already been mentioned, - Z_Cherub 09:22:48 01/14/08 740's with 300 degree rails. (n/m) - Jason300zxTT 09:29:36 01/14/08 2nd (n/m) - EricTTZ 10:03:30 01/14/08 i just did the 740cc swap on my 90 tt and you can buy phase - pearlyellowtt 12:34:10 01/14/08 how's your idle with those? - ali300zx 14:45:08 01/14/08 Power Enterprise 850's - Vert93 (MN) 18:12:27 01/14/08 You should mod for a purpose. - Only1Z 23:14:56 01/14/08
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