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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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04-21-2013, 05:16 PM | #1 |
Join Date: Mar 2013
Location: seattle
Age: 26
Posts: 23
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Sr20det redtop s13 Boost issues
My car:
Sr20det (48k) Walbro 255 HKS super SQ bov Stock S13 Exhaust (big size difference from down pipe to small exhaust) FMIC (recently done) Stock turbo running 12 psi Vaccum lines: Top left nipple teed off to the FPR, BOV, and Boost gauge Top right nipple: plugged BOttow nipple: plugged Wastegate to Hot pipe It ran just fine and hit boost with SMIC but since the conversion i hit 1-2 psi. Once i hit 3000 RPM's i hear a lot of air coming out (someone said it might be the wastegate opening up when it shouldn't). I pulled the line running to the wastegate and hit boost alright, i didnt try going higher than 5 psi cuz i heard it's bad to run with the wastegate unplugged. I tried to crank the arm on the Wastegate but it didnt help. im thinking about replacing it if there's no way to adjust/fix it. If i do end up replacing it, should i get the stock SR wastgate? or something else? I also sprayed Carb and choke cleaner on all the couplers to see if there was a leak.. no such luck. ALSO, the line on the BOV keeps coming off? i tried to JB weld.. still came off. |
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04-21-2013, 10:54 PM | #2 |
Zilvia FREAK!
Join Date: Nov 2010
Location: arizona
Age: 33
Posts: 1,519
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Get a different bov that doesn't have ghetto lines. Also you can temporarily remove it and put a plate to cover it or something.
Also and this is fucking crucial since you just replace every coupler in the system. Do a boost leak test. And report back the results immediately. Edit: remove the fpr from the shared t fitting. Try and put it on its own vacuum source. If ur bov is tripping out it could be messing with the fpr too.
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04-25-2013, 03:23 PM | #4 | |
Leaky Injector
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