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Well, ok, they're not really obsolete, but... Nismo now makes 740cc injectors and JWT has an ECU for them too. Just like their 555's, they are brand new and not rebored injectors. They will fit on 94+ Z's without any modifications, and on the earlier model Z's, JWT has some sort of adapter that will allow them to work (I think they use 94+ fuel rails modified to work in 89-93 Z's). Cost is just a little bit more than Nismo 555's... 555's are good for 625 hp with stock fuel pressure, but if you convert to a 4bar setup, they'll be good for almost 675hp. If you're going bigger than 675hp, then you'll definitely need 720s or 740s. PS, this post is not intended to start another RC vs Nismo, old vs new, balanced vs not, argument again... if you want to start something like that, just do a search and you'll find plenty to entertain yourself. :-)
Bernie
Authorized sales rep for...
Datalogs every run... launches with boost in your 5-speed... keeps turbos spooled between shifts... enables controlled power slides! For more information, pricing, or to purchase a system,
feel free to e-mail me: bhsiao@newssun.med.miami.edu
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