Hi!!!

 

I will make a plenum pull in around 2 month, and I am going to change the injectores...and the great doubt...

 

Which injectors????'

 

NISMO....$1700

JECS

Deatschwerks

 

 

The last is half in price, but I have read the following...

 

Subsequent to all of my difficulties with my Deatschwerk 550 cc injector replacement, I wanted to share with you all the conclusion to the story! Please read the prior messages associated with this subject in order to understand the history. I received a "private message" from a zcar forum member recommending that I contact Greg Dupree at Specialty Z and discuss the problems I had with the Deatschwerk injector installation. I had a conversation with Greg in which he indicated that he had had similar problems (poor idle and A/F ratio only correct at high end of RPM spectrum) with Deatschwerk injectors in the past with several of his customers and highly recommends that his clients who are having rough idle and A/F issues to replace the Deatschwerks with Nismos. I indicated in prior messages that my next step in troubleshooting the various issues which had occurred with the Deatschwerk injectors was going to be re-installation of the OEM 370 cc injectors which I removed from the engine prior to installing the Deatschwerks. I couldn't bring myself to perform 2 more plenum pulls (first one to see if the engine ran well with OEM injectors re-installed and the second one to install some other type of injectors). I went for broke and installed a set of Nismo 740 cc injectors per Greg's recommendation. I completed the installation today and have found that the Nismos fixed all of the problems I had with the Deatschwerk's installed. I am so happy that I took this risk! Intake vacuum is back up to 19/20" Hg and the idle is velvet smooth. The car runs like a Chetah chasing it's dinner. I still don't have any idea as to why some people that have installed Deatschwerks in their engines have had both good and bad results (based on reviewing many forum posts on zcar and ttnet). I will be talking with Deatschwerk in an attempt to have my money returned for their injectors or as a minimum receive some sort of reimbursement. I can say with certainty that the process used in the 3 plenum pulls performed during this activity were followed religiously! In other words, I didn't fix a problem during my 3rd plenum pull which had been in place during the first two plenum pulls. With all of this said, I am going to take a shower and take my Z into town for a bath! Thanks for everyone's posts in support of this issue.

 

 

Anyone runs wth these injectors and runs unless problems.

 

Thanks.

I've been running the Deatschwerks for a few years with no problems. I couldn't tell whether the A/F ratio is correct as I've not had the car tuned properly since they were installed, but there have been no physical problems with them, I've been happy with them. Perhaps the chip wasn't mapped correctly, or the injectors were faulty?

JECS Make a big range of injectors and for some big named brands like nismo

 

i think CPZ/Z1 offer a 5 year garrantie with them too and priced at $475 for 555/740/840/and so on

Didn't/don't JECS supply a lot of OEM components to Nissan for the z32 anyway?

yep indeed

I thought they did, I couldn't figure if I'd just imagined it or not :blink:

When i looking for an info about what injectors to buy i read only bad things about Deatschwerks... So i buy 750cc JETS, i hope they are good - https://picasaweb.google.com/lh/photo/_h9Sh8kHYxHscfcQO9k9iNMTjNZETYmyPJy0liipFm0?feat=directlink , https://picasaweb.google.com/lh/photo/QdXDn66gT69PVVLkpCNeytMTjNZETYmyPJy0liipFm0?feat=directlink .

well i'm running Jecs 740cc injectors and been/are fine

I am fine also with JECS - 600cc :yes:

Ok,then I think jecs are moré famous...I will but 550cc jecs injectors.

 

i have a question, If i install 550cc injectors and runs with stock turbos , If i run with the Same pressure (12psi), will i the Same consumtion of Gasoline than stock injectors?

 

Thanks

your MPG will drop a little but u will gain a little more power

but remember you will need a New ECU Map to work with the 555 injectors