oddcomp Posted August 4, 2005 Share Posted August 4, 2005 hmm maybe i will try myx's flowed injector rating on my rx's fuel table and see how well it likes it .. i have mine set for 80 cc a min on my megasquirt setup and it seems to run pretty good for a tired old motor edit: my one key is borked .. so make that one eighty cc's Link to comment Share on other sites More sharing options...
the_postie Posted August 5, 2005 Share Posted August 5, 2005 some guy in new zealand fitted 1983 jaguar xj6 injectors into his rx.they fit straight in with a change of o-ring.possum Borne used these in his rx rally car in the day. Link to comment Share on other sites More sharing options...
soobscript Posted August 30, 2005 Share Posted August 30, 2005 Just got mine back from RC. Injectors from an 88 RX. #1 and #3 might be switched, but #2 and #4 are the correct cylinders. Link to comment Share on other sites More sharing options...
oddcomp Posted August 31, 2005 Share Posted August 31, 2005 btw according to a fuel psi conversion utiliity for one of my megasquirt tuneing programs 240 cc/min at 43psi converts to 219 cc/min at 36 stock suby psi now i assume the 36 psi we are supposed to get is only at idle ect or is that the max full boost fuel psi the regulator provides? since that might be useful to know Link to comment Share on other sites More sharing options...
calebz Posted August 31, 2005 Share Posted August 31, 2005 btw according to a fuel psi conversion utiliity for one of my megasquirt tuneing programs 240 cc/min at 43psi converts to 219 cc/min at 36 stock suby psi now i assume the 36 psi we are supposed to get is only at idle ect or is that the max full boost fuel psi the regulator provides? since that might be useful to know Clayton, the Fuel Pressure regulator doesn't regulate at a straight 36 psi. The regulator is setup to deliver a steady 36(point something) PSI above manifold pressure. ergo, at 10 psi of boost, you should be seeing 46psi at the injectors Link to comment Share on other sites More sharing options...
Guest shadow Posted August 31, 2005 Share Posted August 31, 2005 The Subaru regulators should be 36psi at atmospheric. Under vacuum the pressure should drop, and conversely rise under boost. I still have my megasquirt set to 185, although 219 would be the proper number given the test results as Clayton said. A regulator from a 42psi car would be an upgrade in addition to fuel management, giving you the maximum from the stock injectors. Link to comment Share on other sites More sharing options...
oddcomp Posted August 31, 2005 Share Posted August 31, 2005 wel if i tell ms my injectors are much bigger than 200 cc then it starts to bog down even at idle and this is with stock xt spider non turbo injectors on a turbo rx.. so go figure Link to comment Share on other sites More sharing options...
oddcomp Posted August 31, 2005 Share Posted August 31, 2005 Clayton, the Fuel Pressure regulator doesn't regulate at a straight 36 psi. The regulator is setup to deliver a steady 36(point something) PSI above manifold pressure. ergo, at 10 psi of boost, you should be seeing 46psi at the injectors thats kinda what i wanted to know is the when and where the max psi occured at Link to comment Share on other sites More sharing options...
oddcomp Posted August 31, 2005 Share Posted August 31, 2005 wow double post.. disregard one of these posts.. you choose wich one Link to comment Share on other sites More sharing options...
electryc_monk Posted September 8, 2005 Share Posted September 8, 2005 free bump/subscribes... Link to comment Share on other sites More sharing options...
Myxalplyx Posted September 8, 2005 Author Share Posted September 8, 2005 Just got mine back from RC. Injectors from an 88 RX. #1 and #3 might be switched, but #2 and #4 are the correct cylinders. Off of what car, year, model are these injector flow rates in reference too? Link to comment Share on other sites More sharing options...
Subarutex Posted September 8, 2005 Share Posted September 8, 2005 I'm just guessing... but I bet it was a 1988 RX. Link to comment Share on other sites More sharing options...
soobscript Posted September 9, 2005 Share Posted September 9, 2005 I'm just guessing... but I bet it was a 1988 RX. Correct! Link to comment Share on other sites More sharing options...
tizzle Posted October 20, 2005 Share Posted October 20, 2005 So I got my RX injectors back from RC engineering. The results were good. Interesting to look at the before and after picture you can see the cleaned on the right. The gap is wider, and they all came back a different color? wierd off my donor engine never actually ran in my rx: before/ after 221--Dripping/ 238 exc 230--good /240-exc 235--good /242-exc 1 with electrical damage replaced with injector from car 220--good /240-exc Interesting how the one that was actually on my car, had a good spray pattern but, the worst cc/min 1 Link to comment Share on other sites More sharing options...
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