addi Posted September 21, 2003 Share Posted September 21, 2003 i run a 94 j spec, i have started to notice a tapping style noise wen my foot is down but only wen the second turbo kicks in and boosts.....it seems to be comming thro the exhaust and is rather worrying me now, it is definatly not an exhaust rattle as i have checked the exhaust adn it only happens on ful crank on second turbo.. i have fuel cut defender, greddy cat bak exhaust, greddy boost control, hks filter etc etc etc running 1.2 bar ..... any ideas guys????????????????? Link to comment Share on other sites More sharing options...
Matt Harwood Posted September 21, 2003 Share Posted September 21, 2003 Does it sound like something small is rattling around inside? Coming from the engine end of the exhaust? Link to comment Share on other sites More sharing options...
addi Posted September 21, 2003 Author Share Posted September 21, 2003 yeh i guess it does.. i cant describe the noise.. its a little like the type ov tickking noise u get wen a car is cooling down but cummin thro the exaust :-/ Link to comment Share on other sites More sharing options...
Matt Harwood Posted September 21, 2003 Share Posted September 21, 2003 I'd guess you should try turning down the boost a bit... Sounds like detonation, (pinking). If it is, it's gonna be expensive if you don't get it sorted fairly quick... Link to comment Share on other sites More sharing options...
addi Posted September 22, 2003 Author Share Posted September 22, 2003 how can i prevent it??? Link to comment Share on other sites More sharing options...
GavinL Posted September 22, 2003 Share Posted September 22, 2003 Originally posted by addi how can i prevent it??? Turn the boost down to 1.0 bar and see if it goes away Link to comment Share on other sites More sharing options...
dude Posted September 22, 2003 Share Posted September 22, 2003 Have you checked to see what ECU you are running , ie Mines etc or stock , also what fuel do you use ??? Dude:flame Dev Link to comment Share on other sites More sharing options...
addi Posted September 25, 2003 Author Share Posted September 25, 2003 dont know about the ecu as the car was modified wen imported.....optimax all the way! Link to comment Share on other sites More sharing options...
Matt Harwood Posted September 25, 2003 Share Posted September 25, 2003 Optimax, octane booster and lower the boost. That should cure it. Link to comment Share on other sites More sharing options...
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