| Companies like Venom and DW give low prices on injectors because they usually don't make their own injectors, but instead remanufacture. The injectors from "a set" can actually have been made years apart. That being said there are several articles on this site to help. IF you're going side-flow, get the 300 Degree rails.
They not only flow more, but you likely know that fuel circulation acts as a coolant.
Factory rails cover ~41% of the injectors, but 300 Degree cover a ~54% of the injector with fuel, allowing them to stay cooler.
Nismos would be preferred as DW suck. Why do DWs suck? The aforementioned QC and lack of matching between injectors in the same set.
"Flow tests" are bullshit.
Knowing how much fuel the injectors flow @ full-open is nice, and they should be matched there.
The question is, how much of your time is spent @ WOT?
That's where flow-testing fails - your idle/lower RPMs, as some have already pointed out will suffer if the injectors aren't matched. Top-feed.
Why am I going top-feed? The injectors aren't subjected to as much heat as sides.
Top-feeds respond well to E85 and ethanol "contaminated" gas.
You can run higher cc's.
I picked the WinFactory rail as I may go E85, and I DONT have to REPLACE/machine the lower plenum.
(BDE does)
The setup uses EV14's, as does the Corvette, and it does well. I specifically chose Injector Dynamics brand injectors because they have very strict standards, full-range flow-matched sets and a good race-proven reputation. Top-feeds are cheaper than every type of side-feed. (That isn't Venom lol!)
I.D. brand are the most expensive top-feeds, and I STILL found them @ $95 ea, cheaper than new 370's lol! The only problem would be if I needed to replace an I.D. injector I'd likely have to replace them all, unless they found another 1 injector that completely matched.
(Worth the risk to have incredible idle!) In the end, it will be what you want to decide.
Honestly, the top-feed changeover (because Im going to SS braid FPR, FF, etc) is costing me ~ $2,000.
625 rail
575 injectors
150 ECU
30 gaskets I'd say that's a minimum.
If you don't mind a plenum pull (bypass your TB's in prep) you can just do it later if one/some fail. I may not "like" them, but if they are functioning properly, no reason to replace them. Good luck.
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16:41:57 11/05/10
