RB25 Boost Leak
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IceSkyline25
- Posts: 17
- Joined: Sat Apr 29, 2006 1:35 pm
- Car: 240sx
RB25 Boost Leak
I have a 89 240sx w/ a RB25 and it's not running good at all I beleve I have a boos leak and a exaust leak it has alot of lag when I press the gas, and once I reach 11 pounds of boost my boost gauge will star going crazy and the car will start to back fire and losse power. Please let me know if you have any Idea of what could be wrong w/ it or if this has happen to any of you before Thanx.
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IceSkyline25
- Posts: 17
- Joined: Sat Apr 29, 2006 1:35 pm
- Car: 240sx
Re: RB25 Boost Leak (IceSkyline25)
a little more info.. sorry..
I have an S13 with an RB25.. i just bought the car with the swap already done so i am having to fix problems here and there.. I got the car running but for some reason it feels very sluggish... i know for a fact an RB25 is supposed to pull harder then this.. I have checked for boost leaks and i didnt find ANY.. my BOV isnt leaking either.. The turbo has no shaft play in it whatsoever and it sounds like it is boosting.. My turbo bolts backed off before but now i have them on tight and they arent going anywhere.. It doesnt really sound like there is an exhaust leak.. Ive been trying to also figure out the vacuum diagram but i have a custom intake manifold so its hard getting some accurate diagrams.. also just changed the plugs.. plus i am running 40 PSi of fuel pressure.. i have a cheap **** FAZE boost gauge and it sputters when i hit full boost.. is that because its a peice of **** or because its some type of problem? let me know what you guys think what my problem may be.. i have an event on the 21st that i would love to rip at.. also you guys have any pics of PS on an S13 with an RB25?
I have an S13 with an RB25.. i just bought the car with the swap already done so i am having to fix problems here and there.. I got the car running but for some reason it feels very sluggish... i know for a fact an RB25 is supposed to pull harder then this.. I have checked for boost leaks and i didnt find ANY.. my BOV isnt leaking either.. The turbo has no shaft play in it whatsoever and it sounds like it is boosting.. My turbo bolts backed off before but now i have them on tight and they arent going anywhere.. It doesnt really sound like there is an exhaust leak.. Ive been trying to also figure out the vacuum diagram but i have a custom intake manifold so its hard getting some accurate diagrams.. also just changed the plugs.. plus i am running 40 PSi of fuel pressure.. i have a cheap **** FAZE boost gauge and it sputters when i hit full boost.. is that because its a peice of **** or because its some type of problem? let me know what you guys think what my problem may be.. i have an event on the 21st that i would love to rip at.. also you guys have any pics of PS on an S13 with an RB25?
http://i2.photobucket.com/albu...B.jpgdont pay attention to the circled parts.
look at the vacuum lines on the valve cover this should solve that routing problem.
did you check or mention the fuel filter and pump screen to Ameen yet? also you need to get those two manifold bolts
You heard of the SL Kids? by any chance?
look at the vacuum lines on the valve cover this should solve that routing problem.
did you check or mention the fuel filter and pump screen to Ameen yet? also you need to get those two manifold bolts
You heard of the SL Kids? by any chance?
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midnightsliding
- Posts: 915
- Joined: Sat Jun 21, 2003 8:48 pm