RB20 running like poo

Discuss the RB20, RB25 and RB26 series engines.
teamloco
Posts: 20
Joined: Tue Jun 24, 2008 10:58 am
Car: 1991 Nissan 240sx

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Im having an intermittent issue with my RB. When i start it up, it runs fine. After driving for an extended period of time it sounds like crap and backfires quite a bit. It has almost no power and sounds like a subaru at idle. This comes and goes. Some times it's fine others it runs like poo. Halp!


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leesredgt
Posts: 3945
Joined: Sun Aug 05, 2007 11:18 am
Car: 1992 Toyota MR2 N/A
1991 Toyota MR2 Turbo

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Have you checked for boost leaks?How bout your timing? It might be retarding your timing the more you drive on making the car run like crap at the end of your drive.

teamloco
Posts: 20
Joined: Tue Jun 24, 2008 10:58 am
Car: 1991 Nissan 240sx

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It may just be bad plugs. Im going to check them today

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SullivanRacing06
Posts: 1974
Joined: Sat Apr 21, 2007 8:45 am
Car: r32 gtst, 06 350z, r32 gtr, rs4 steaga, 04 350z, f350/6bt
Location: Gainesville

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check plugs, if bad throw some ngkr bkr6e copper plugs, nice cheap swap, do not use iridium b/s crap, thoes r way over priced and not good for boost (unless you like lil pieces of ceramic to drop into your motor), and if you can check the coils, mabey a loose ground as well.


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