Subject	Upgrading 300zx injectors
Posted by	MJzTTZ on April 10, 2019 at 9:03 AM
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Message	Hello, I have not kept up with the updates in the Z community and just need some clarification. I have a 1990 300zx TT and want to upgrade the injectors to DeatschWerks 740cc. Do I just need the Injector adapter kit or do I need something else. Is there a better way to go about it (read something about new connector style). The Z has been sitting for about 4 maybe 5 years... do I need to do something before starting her up. I will replace the Oil, Coolant, and Fuel. Anything else I should do before startup. My goal is to get her running and then modify it to about 450whp on pump gas safely. Last dyno run the Z was on did 376whp with just bolt-ons & 15 PSI boost so next step if everything is well with the engine will be turbos and injector upgrade.
Follow Ups	Upgrading 300zx injectors - MJzTTZ 09:03:07 04/10/19 I would not recommend the Deatschwerks intectors - itsa300zx 13:55:21 04/10/19 Re: Upgrading 300zx injectors - ZBOOSTT 14:27:38 04/10/19 Re: Re: Upgrading 300zx injectors - MJzTTZ 15:01:25 04/10/19 Re: Re: Re: Upgrading 300zx injectors - ZBOOSTT 18:57:08 04/10/19 Nismo 740 to avoid future problems... - Ted (92TT) 21:22:15 04/10/19 Re: Nismo 740 to avoid future problems... - ZBOOSTT 22:10:11 04/10/19 Back in the day JWT wouldn't use Deatschwerk units - Gordo NA2LS Daytona 07:34:59 04/11/19 Correct. There is nothing wrong with Nismo 615cc injectors. - MixManMash 07:55:21 04/11/19 Problems as in they're not big enough and I could have got - Ted (92TT) 23:08:34 04/11/19 And actually was referring to future probs with DW... - Ted (92TT) 23:16:18 04/11/19 Any issues passing CA SMOG with 740cc injectors? - turisimo66 08:51:34 04/11/19 I have scoped my 740 nismos at around 750rpm and lambda 1... - kickerzx 13:07:56 04/11/19 (because larger pulsewidth and thereby better control) (n/m) - kickerzx 13:09:30 04/11/19 Re: (because larger pulsewidth and thereby better control) - ZBOOSTT 14:05:22 04/11/19 To be honest i dont think you will find sidefeed injectors.. - kickerzx 14:44:11 04/11/19 Re: I have scoped my 740 nismos at around 750rpm and lambda 1... - turisimo66 14:21:09 04/11/19 How does this affect emissions for a smog test? - Polish 16:33:13 04/11/19 If thats how your smog is done then no it wouldnt matter. - kickerzx 16:49:05 04/11/19 But it depends on the injector pulsewidth at the time of - kickerzx 13:21:12 04/15/19 How does the pulsewidth affect the emissions? - Polish 01:16:25 04/16/19 I was thinking if pw is so low you are entering the area - kickerzx 05:18:19 04/16/19 Re: I was thinking if pw is so low you are entering the area - turisimo66 08:51:04 04/17/19 Thing is. Dutycycle isnt really the best way to look at it.. - kickerzx 10:54:35 04/17/19 Re: Thing is. Dutycycle isnt really the best way to look at it.. - turisimo66 08:15:03 04/18/19 Yeah. I guess i was more telling others reading it.. - kickerzx 10:59:09 04/18/19 Somewhat at least... (n/m) - kickerzx 11:00:50 04/18/19 And yeah. Resolution on a 8bit ecu isnt really great :) (n/m) - kickerzx 11:17:05 04/18/19 hmmm. I MAY have made a bit of a fool of myself. - kickerzx 12:07:00 04/18/19 Re: I was thinking if pw is so low you are entering the area - turisimo66 07:59:39 04/18/19 Re: Upgrading 300zx injectors - MJzTTZ 15:37:11 04/11/19 CA SMOG pass with 740cc no problem and i have a 96 - RonZ300 (Socal) 23:21:34 04/19/19
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