Subject	What I'm saying is slightly different.
Posted by	ZCulture on July 19, 2007 at 12:55 PM
	This message has been viewed 36 times.
In Reply To	And 90% of the time they're operating in the low teens duty posted by BigTDogg (MA) on July 19, 2007 at 11:51 AM
Message	For high power applications, 740 is the way to go. For ~500RWHP, I think 555's are better than 740's due to fuel delivery precision reasons (and the comparative argument is not moot). This, IMO, is primarily the reason why Nismo has injectors in 555, 615, and 740 sizes. They all cost about the same; if 740's were strictly dominating, the other two won't be offered. Also, look at what Broke_as_**** has to say in this excellent article. Quoting... "So why not get the larger 740ccs just for the hell of it? If you are running injectors that are oversized for your power level it can actually decrease power and increase risk of detonation and engine damage as larger injectors are less accurate in terms of precise fuel delivery."
Follow Ups	Doing a swap... Making sure I got all the parts - Loredram 00:36:26 07/19/07 If you want to go the whole 9 yards... - Biz(MD) 00:41:12 07/19/07 Do you know the origin of that line? (n/m) - Scotts94z32 09:39:08 07/19/07 Since you're getting a new harness, I would get the 94-95 - Octavian 01:15:39 07/19/07 When it comes to injectors, bigger is not always better - ZCulture 01:47:08 07/19/07 bigger is better with the right program ... (n/m) - The Devils Z 05:22:29 07/19/07 I don't ever plan on going over 600hp. - Loredram 07:09:55 07/19/07 For the similar price I would get the 740's so injectors do - Z Driver 07:30:20 07/19/07 You can always get the new style 615cc ones. (n/m) - YugoBernie (NoVA) 07:39:57 07/19/07 a bigger injector will operate w/a lower duty cycle at - The Devils Z 08:49:48 07/19/07 That comparison doesn't work... - BigTDogg (MA) 08:15:41 07/19/07 See the problem is that the injectors are designed - ZCulture 11:39:58 07/19/07 And 90% of the time they're operating in the low teens duty - BigTDogg (MA) 11:51:50 07/19/07 What I'm saying is slightly different. - ZCulture 12:55:41 07/19/07 Agree to disagree (n/m) - BigTDogg (MA) 18:57:25 07/19/07 So after you pay for all that a labor - Evan(CA) 03:37:00 07/19/07 Re: So after you pay for all that a labor - Loredram 07:07:32 07/19/07 If you're getting the 300deg Kit, go for the 95-96 injectors (n/m) - TTFairladyZ 07:12:46 07/19/07 You should def. be doing newer style injectors. Get the - YugoBernie (NoVA) 07:39:14 07/19/07 Hey, are they better than the 555's only because - ZCulture 13:00:32 07/19/07 New style 555s infact flow @ 615cc. (n/m) - YugoBernie (NoVA) 20:44:49 07/19/07 Go ahead and get the oil cooler hoses. - TpLsZ 09:38:01 07/19/07 TT PS return hose (n/m) - Adam (NoVA) 10:30:15 07/19/07
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