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#1
07-31-2003, 12:45 AM
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PM6 vs. PG7
From what I've read a PM6 will run my ZC lean and the PG7 will run rich, So witch is best to use with the DOHC ZC? I know the PG7 has the higher redline but wouldnt running lean be more powerful than rich? Thanks.
-Derek.
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1990 Honda Civic Shit-box, Sold. 
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#2
07-31-2003, 01:40 AM
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Just use the right ECU for the swap! I don't understand why people cheap out on this kind of shit and wind up wrecking the motor they swapped?!
 Running lean is a very bad idea.
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"The nympho of info, I'm fuckin' what ya heard" 
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#3
07-31-2003, 02:12 AM
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The right ECU is a PM7 which is hard to find and harder to find a a good price. I've been running the PM6 on mine since I had it. It runs great. Gets good mileage and pollution would be less I guess.
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http://www.fourthgenhatch.com FOR SALE: Get this stuff out of my house! -Stock hood (red) $30 -Stock Rear Spoiler (red) $30 -Stock mirrors $30/both -Stock side front and rear side glass $30/piece
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#4
07-31-2003, 02:47 AM
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Unfortunately, I have never had my PM7 and ZC in the car at the same time...lol
But in my last Si, I ran the Zc with both the pm6 and pg7 ecu's. I never had a problem with running lean/rich, so I dont know what the deal with that is. My car passed emissions with flying colors, even with the Zc. pm6 - Good pg7 - Better pm7 - Best The only advantage the pg7 has over the jdm pm7 is the lack of a speed limiter. The pm7 limits out at 115mph. I think I may leave that limiter in place, so that Im not tempted to take her that high. Plus it will keep me outta trouble...........somewhat... 
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There's nary an animal alive that can outrun a greased Scotsman!
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#5
07-31-2003, 09:26 AM
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I have a PM6 right now; I would like a PM7 but I don't know where to find them
__________________
1990 Honda Civic Shit-box, Sold.
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#6
08-02-2003, 04:45 PM
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i ported the head and intake on my beater all crazy style and i definatly noticed a difference. in neutral it revs up a lot faster with the pg7 in there. i heard u can use a fuel pressure regulator off a 92 to bump it up 5 psi, thats for a regular si motor tho.
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91 sivik hb, crx dash, seats, mpfi d16 swap, 70mm edelbrock mustang throttle body, custom intakenstein, crazy big ported head, and stock si exhaust with a gutted cat, oh and clear corners. 
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