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acceleration/exhaust problem 

 

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 Post subject: acceleration/exhaust problem
Posted: Mon May 02, 2005 12:17 am 
Oompa Loompa
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hi guys. three weeks ago got lukey 2.5 inch exhaust put on my au. sounds sweet. but now when i put the foot down it seems to lag a bit in certain gears. it seems as if it lurches then moves then lurches . by the way my au is a 5 speed. any ideas and would putting on a set of pacies solve this problem as some people have said the original extractors might not have enough back pressure or somethin. cheers

 

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Posted: Mon May 02, 2005 8:44 pm 
Getting Side Ways
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I have lukely exhaust with JimMock race series extractors.It was a massive improvement

 

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Posted: Mon May 02, 2005 8:54 pm 
Parts Gopher
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I have found the same problem using shell optimax. Changed to BP ultimate and it feels alot better
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Posted: Mon May 02, 2005 8:55 pm 
Getting Side Ways
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Maybe they knocked a wire or sensor loose when fitting?
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Posted: Tue May 03, 2005 3:13 pm 
Getting Side Ways
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I also have this problem ( No mods besides k&n and snorkle ) but sometimes you will give it a hit and she flys and others it is really f**k slow revving up the range. you can really hear the difference any ideas?
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Posted: Thu May 05, 2005 1:53 pm 
Oompa Loompa
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i'm stumped. i'm gonna change spark plugs thne leads and if it dont work i'm gonna put on a set of pacemaker 4480 extractors cause some people recon its the original extractors that are the prob not providing enogh back pressure from new exhaust

 

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Posted: Thu May 05, 2005 2:41 pm 
Site Admin
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Power: 270 rwkw

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Buying extractors wont fix your problem. Sounds like its something else, which just happens to be more noticable now with a free'er flowing exhaust system.

The factory exhaust manifolds make surprisingly punchy power.. we ran a JMM DEV5 head with the standard manifold for a while, very interesting!

 

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Posted: Fri May 06, 2005 5:57 pm 
Oompa Loompa
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changed the leads and plugs aswell as givin the throttle body a good cleanin and presto problem fixed. hope this thread helps anyone else who has this problem

 

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Posted: Fri May 06, 2005 6:44 pm 
Parts Gopher
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mine is due for a major service soon, will give it a go , thanks
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Posted: Sat May 07, 2005 7:57 pm 
Oompa Loompa
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hey waggin would like to know the results. can you please post to show us all

 

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