AWD TURBO! Posted November 9, 2010 Share Posted November 9, 2010 what cc injectors does the stock 87 rx turbo have? Quote Link to comment Share on other sites More sharing options...
zacyork Posted November 9, 2010 Share Posted November 9, 2010 i do believe the oem cc is 185 thats at fuel pressure around 36psi Quote Link to comment Share on other sites More sharing options...
Subruise Posted November 10, 2010 Share Posted November 10, 2010 i have four if anybody's interested........................... RV Quote Link to comment Share on other sites More sharing options...
LeoneTurbo Posted November 10, 2010 Share Posted November 10, 2010 185cc is not enough to support the power figures of the EA82T. I think they are closer to 280cc. Quote Link to comment Share on other sites More sharing options...
Nomad_Brad Posted November 10, 2010 Share Posted November 10, 2010 i have four if anybody's interested........................... RV for a turbo? Quote Link to comment Share on other sites More sharing options...
presslab Posted November 10, 2010 Share Posted November 10, 2010 Someone measured the XT injectors at ~220 cc/min @ 40 PSI. This correlates with what I have seen. BTW I just upgraded to 370cc and I have my brown top 280ZXT injectors, 260cc for sale, only 12k miles on them. Quote Link to comment Share on other sites More sharing options...
vagen Posted November 10, 2010 Share Posted November 10, 2010 turbo injectors are indeed 185cc this is why people often swap them for the larger 260cc turbo ZX injectors. I am running the stock injectors but I plan to run more than 4 of them when I go for much more power. Quote Link to comment Share on other sites More sharing options...
Turbone Posted November 10, 2010 Share Posted November 10, 2010 You guys need to use the search function more :-p http://www.ultimatesubaru.org/forum/showthread.php?t=89699&highlight=mitsubishi+injectors I ran the Mitsu injectors on my last EA82T. Add a 255lph fuel pump and you should be golden. Quote Link to comment Share on other sites More sharing options...
presslab Posted November 10, 2010 Share Posted November 10, 2010 turbo injectors are indeed 185cc this is why people often swap them for the larger 260cc turbo ZX injectors. I am running the stock injectors but I plan to run more than 4 of them when I go for much more power. I have seen people refer to them as 180cc, 185cc, etc. but that's not at the same pressure most injectors are rated at. Here is the post where they are actually measured. http://www.ultimatesubaru.org/forum/showpost.php?p=323920&postcount=68 And info from WJM. http://www.ultimatesubaru.org/forum/showpost.php?p=598691&postcount=3 When I upgraded to 280zxt injectors they did flow more, but definitely not 40% more. Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 ok so there 180-185 cc kool i plan on running an e85 + pump 92 to keep from Detonation and Pre-Ignition and the 330 cc Datsun Performance Fuel Injectors from http://osidetiger.com/Datsun1.aspx i think he wanted 120 for a set of 4 Quote Link to comment Share on other sites More sharing options...
presslab Posted November 10, 2010 Share Posted November 10, 2010 (edited) ok so there 180-185 cc kool i plan on running an e85 + pump 92 to keep from Detonation and Pre-Ignition and the 330 cc Datsun Performance Fuel Injectors from http://osidetiger.com/Datsun1.aspx i think he wanted 120 for a set of 4 185cc @ 36 PSI (still doesn't correlate to measurements), the 330cc are probably @ 43.5 PSI. Do you know the relationship of flow to PSI? It is (PSI(x) / PSI(y))^0.5. For the mathematically challenged: http://osidetiger.com/calculator.aspx If you don't understand that you probably shouldn't be modding your engine. Edited November 10, 2010 by presslab Quote Link to comment Share on other sites More sharing options...
Subruise Posted November 10, 2010 Share Posted November 10, 2010 for a turbo? yes from a 88 ea82t 138k miles Quote Link to comment Share on other sites More sharing options...
Qman Posted November 10, 2010 Share Posted November 10, 2010 yes from a 88 ea82t 138k miles Quit hijacking. Start your own for sale thread in classifieds. Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 185cc @ 36 PSI (still doesn't correlate to measurements), the 330cc are probably @ 43.5 PSI. Do you know the relationship of flow to PSI? It is (PSI(x) / PSI(y))^0.5. For the mathematically challenged: http://osidetiger.com/calculator.aspx If you don't understand that you probably shouldn't be modding your engine. dude the question was what is the OEM injector cc's.... so i can add 25% + cc's for the e85 and a walbro 255 & an fpr is going to be added at the same time Quote Link to comment Share on other sites More sharing options...
presslab Posted November 10, 2010 Share Posted November 10, 2010 Ok, good luck. Quote Link to comment Share on other sites More sharing options...
Qman Posted November 10, 2010 Share Posted November 10, 2010 185cc @ 36 PSI (still doesn't correlate to measurements), the 330cc are probably @ 43.5 PSI. Do you know the relationship of flow to PSI? It is (PSI(x) / PSI(y))^0.5. For the mathematically challenged: http://osidetiger.com/calculator.aspx If you don't understand that you probably shouldn't be modding your engine. Seems a little brash. Maybe work on your technique. If you do not know how to communicate without being an rump roast maybe you shouldn't post on the interwebs?!? See what I mean. Just doesn't come across any other way does it? Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 btw my car is modded hi compression pistons 03 TD04 big intercooler ported heads cams msd Street Fire Ignition Blaster 2 Coil and so on Quote Link to comment Share on other sites More sharing options...
Nomad_Brad Posted November 10, 2010 Share Posted November 10, 2010 btw my car is modded hi compression pistons 03 TD04 big intercooler ported heads cams msd Street Fire Ignition Blaster 2 Coil and so on [ATTACH]8198[/ATTACH] that sweet how did you mount the tmic? good write up on here? -Nomad Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 (edited) that sweet how did you mount the tmic? good write up on here? -Nomad welder time mandrel bent pipe and more time but here are some pix of the build Edited November 13, 2010 by AWD TURBO! Quote Link to comment Share on other sites More sharing options...
Subruise Posted November 10, 2010 Share Posted November 10, 2010 Quit hijacking. Start your own for sale thread in classifieds. my bad, sorry guys. wont happen again. I hate that crap too. RV Quote Link to comment Share on other sites More sharing options...
presslab Posted November 10, 2010 Share Posted November 10, 2010 Seems a little brash. Maybe work on your technique. If you do not know how to communicate without being an rump roast maybe you shouldn't post on the interwebs?!? See what I mean. Just doesn't come across any other way does it? I'm just being factual and honest, I apologise if it comes across brash. I still feel the same, it's not a personal insult, but really one need to understand the relationship between flow and pressure, and how the fuel pressure regulator works, etc. before modding their engine. It seemed that AWD TURBO ignored my post and doesn't understand that relationship when in the next post he talked about the 185cc and the 330cc without describing their pressure or translating the numbers so they would actually compare to each other. I couldn't even find what pressure the 330cc injectors are on their web site, so who knows how much they actually flow. But whatever, I am just trying to help. I'm not wanted in this thread so I will now bow out. Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 hey don't get me wrong Presslab if you can explain what your trying to tell me it would help knowledge is power and i don't know every thing but what i do know is with a fpr and 180 cc injectors there still too small Quote Link to comment Share on other sites More sharing options...
ruparts Posted November 10, 2010 Share Posted November 10, 2010 hi, i want to throw something in here , according to the wiring diagrams for the ea82 series cars the injectors are wired in pairs, and after looking closely , it appears they must fire 2 times in each 720 degree rotation of the cranksahft, which is one cylinder's complete power cycle . so it makes sense that they would use an injector that is roughly 1/2 the rate needed for a "fire once per cycle system". if anyone would like to comment about this i would like to hear what their thoughts are , but i know the injectors are wired in pairs so it sure looks like each of them will fire twice in every 720 degrees rotation. Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted November 10, 2010 Author Share Posted November 10, 2010 for the + and the 4 ground's go to the ecu i think now i want to know Quote Link to comment Share on other sites More sharing options...
naru Posted November 10, 2010 Share Posted November 10, 2010 (edited) hi, i want to throw something in here , according to the wiring diagrams for the ea82 series cars the injectors are wired in pairs, and after looking closely , it appears they must fire 2 times in each 720 degree rotation of the cranksahft, which is one cylinder's complete power cycle . so it makes sense that they would use an injector that is roughly 1/2 the rate needed for a "fire once per cycle system". if anyone would like to comment about this i would like to hear what their thoughts are , but i know the injectors are wired in pairs so it sure looks like each of them will fire twice in every 720 degrees rotation. Yep,all 4 at once. Early EA-82T is L-jetronic.Later are LH http://bama.ua.edu/~darren/bosch/Page17.html Edited November 10, 2010 by naru more Quote Link to comment Share on other sites More sharing options...
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