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Re: Installed 24# injectors this week....Took first hig Posted by Justin VanAbrahams [Email]  (#32) [Profile/Gallery]
(more from Justin VanAbrahams) on Mon, 29 Oct 2007 09:40:10
In Reply to: Re: Installed 24# injectors this week....Took first hig, Landjet   [Profile/Gallery]
, Mon, 29 Oct 2007 04:22:36
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The Ford injectors and Bosch injectors are slightly different because they are rated 24# at slightly different fuel pressures. I *believe* the Ford ones deliver more fuel - I think the Ford ones are rated at 39psi and the Bosch ones at 3bar, so the Ford will be delivering slightly more than 24# at our 3bar. Either way, we're not talking much. Also, there are two or three generations of blue-topped Ford 24# injectors, with the latest ones having four distinct nozzles instead of one... these are very good injectors, with a superior spray pattern.
Landjet is spot-on - $30 is a screaming deal if they're young, and four times that is a good deal. You'll pay $100 or so each from the Saab dealer, and $40-$50 each from the Ford dealer.
Whenever I rebuild a Saab I always install a set of the Ford injectors. They make a tangible difference in performance (both power and economy) simply because they're new. We're fortunate that Bosch injectors are pretty high quality and don't tend to fail outright, but I think folks also take that for granted - an injector doesn't have to be completely dead to be not right. A healthy injector is good for fuel economy and throttle response - definitely an important component.
As for vvack's question - they should not affect mileage at all unless your foot is always in it. The O2 sensor keeps fuel at a specific level everywhere except at wide-open throttle, so assuming you're at part throttle most of the time you'll see the same economy with stock injectors or 24# injectors. Of course, you may see superior fuel economy with an injector that is fully atomizing fuel versus an old, clogged injector that is dripping it... But we're not talking about a big shift here...
posted by 207.15.18...
, Sun, 28 Oct 2007 17:43:24, Sun, 28 Oct 2007 19:02:48, Sun, 28 Oct 2007 19:11:05
, Sun, 28 Oct 2007 18:57:07, Mon, 29 Oct 2007 03:05:01, Mon, 29 Oct 2007 06:30:15, Sun, 28 Oct 2007 23:14:10, Mon, 29 Oct 2007 04:22:36, Mon, 29 Oct 2007 09:40:10 <-- Viewing This Message, Mon, 29 Oct 2007 06:59:08, Mon, 29 Oct 2007 15:44:37, Mon, 29 Oct 2007 16:46:16
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