2.5" True Dual w/X-pipe

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Dec 30, 2006 | 07:59 AM

#21

kevlo911

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From: other

Quote:

Originally Posted by dTor

The drop in HP corresponds with the ecu trying to correct the AFR back to 14.7. Look at the bottom of the graph and you'll see the AFR and how it rises from ~13ish up to almost 14. And no, this is not a "lean" condition - this is normal, though it certainly doesn't help with power.

Looks like it's time for a tune!

No, the ECU does not adjust at WOT. It goes into OPEN LOOP which is preset maps. The reason it gets lean is because you have alot more air being sucked in now.

Dec 30, 2006 | 12:29 PM

#22

Sean_350z

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From: Auburn Hills, MI

these cars have fp regulators that can be replaced at the rails or is it done at the pump? Simple bump in fp might correct the leaning issue.

Dec 30, 2006 | 01:41 PM

#23

diablo25mn

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Quote:

Originally Posted by Sean_350z

these cars have fp regulators that can be replaced at the rails or is it done at the pump? Simple bump in fp might correct the leaning issue.

I don't think so, the FPR typically is in-tank and is set a a static pressure of 42psi or 58psi depending on the brand. Especially since we do not have a return line stock.

Dec 30, 2006 | 01:50 PM

#24

Diesel350

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Wow that sounds incredible. I may have to drive down there sometime to hear it in person.

Dec 30, 2006 | 02:13 PM

#25

dTor

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From: Hattiesburg, MS

Quote:

Originally Posted by kevlo911

No, the ECU does not adjust at WOT. It goes into OPEN LOOP which is preset maps. The reason it gets lean is because you have alot more air being sucked in now.

Good point. I'll look into that some more.

Jan 2, 2007 | 09:56 PM

#26

wren57

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From: I'm A Gypsy

Just curious, what are the magnaflow part #s and how much did everything cost ya? I'm just curious because I already have a fuji ypipe that i'm planning on hacking and fitting a magnaflow xpipe to for a system similar to yours. Thanks.

Jan 3, 2007 | 03:21 PM

#27

diablo25mn

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Quote:

Originally Posted by wren57

Be honest with you i didn't have the managflow part #s because i didn't order the materials. The whole setup including the mandrel bent tubing and frabrication cost me $675 total.

Jan 3, 2007 | 03:42 PM

#28

CaliTouring

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Thats a nice set up you can hear it from far away in that video

Jan 3, 2007 | 04:46 PM

#29

wren57

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From: I'm A Gypsy

Hmm, well do you know the length of the resonators? Just curious bc I'm doing something extremely similar to what you're doing and want to be able to research what part(s) will fit. Thanks again.

Jan 3, 2007 | 06:41 PM

#30

diablo25mn

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From: Miami

The rear ones are 12", the center two are 18" x 4" round think maybe 3.5"

Jan 6, 2007 | 02:31 PM

#31

Exhaust Depot

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From: florida

I used 18" res in the middle and my 12" in the rear. The tips are mine not magnaflow.

Magnaflow resonators are nice because they are densly packed. The injen system i took off diablos car sounded like jingle bells cause it had little packing in it.