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lacking power in top end 

 

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 Post subject: lacking power in top end
Posted: Wed Aug 02, 2006 5:19 pm 
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ok i went for a good spin out the road 2 day but it seams to me as it's leaning out i mean it hammers and all but the top end dont feel right maybe i should drop in a xr6 fule reg and give that a go i need more grunt or i'm never ganna crack the low 15s some thing is not right any ideas?????

 

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Posted: Wed Aug 02, 2006 5:41 pm 
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I blew my EF Tikford intake apart (on gas). It had crap top end with that intake. While working out what I was going to replace it with I drove it with on intake or ring. It had top end. Put an AU intake (new at $90) with ring and still had most of that top end.

 

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 Post subject: Some Pics
Posted: Wed Aug 02, 2006 5:51 pm 
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1 day I will tidy it up abit.

 

 

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Posted: Wed Aug 02, 2006 6:01 pm 
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yeah but i did this with the ring out and it feels as it not pulling that well in the top end

 

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Posted: Wed Aug 02, 2006 6:16 pm 
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how long till you hit the dyno?

get your afr's checked then?

 

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Posted: Wed Aug 02, 2006 6:35 pm 
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with the mods your dun, you'd be looking at high 1's wouldn't ya? sounds like a good tune would fix everything up.

 

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Posted: Wed Aug 02, 2006 6:35 pm 
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Nik, i posted in other thread.
Lose your XR ECU, put the stock one back.
I had the EXACT same thing when i was runnig an XR ECU in my ed with the rspec3!!!

 

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Posted: Wed Aug 02, 2006 6:37 pm 
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Do a blocky without the intake and see how much topend you gain.

 

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Posted: Wed Aug 02, 2006 6:44 pm 
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well i guess one thing to consider is if your running an XR6 ECU that's got a factory tune based on running a higher pressure fuel regulator and your still running the lower pressure fuel regulator it may be getting confused.
I'd a. refit a stock ECU and at least 'test' that, b. get a hold of a Tickford sepc fuel pressure regulator and see how that goes.

 

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Posted: Wed Aug 02, 2006 6:45 pm 
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Tickford sepc fuel pressure regulator
any idea what thay cost??

 

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