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Author
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Topic: Header and O/R H pipe install and now no bottom end?
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87 4spd GT
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Member # 9216
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posted
 
 
Hey what's up, so I installed a Hooker super comp set of headers and O/R H Pipe this weekend. Now it seems like my car has no bottom end. It's an 87 converted to MAF, with just bolt ons such as underdrive pullies, BBK CAI, 93 ecu and MAF, 2 chamber flows, stage 2 shift kit and 3.73's. Now am I just too anxious too notice results, and will it take awhile for the ECU to reprogram itself? Or what's going on?
Seems like it had more power before! UGH!
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Putting a 'Playboy' brand g-string on your 'ol lady does not make her a Playmate
Posts: 49 | From: Redding | Registered: May 2009
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84SVOrick
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Member # 9039
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posted
does it studder, or jus seem like you have no bottom end, because basically you lose some bottom end but gain a ton of top end with no cats to hold you back.
you have more back pressure with the cats (torque) and with no cats less torque but more horse power.
take it on the freeway and youll feel the difference.
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Bay Area Stunnaz
RIP Jeannera "FOXY302"
10/29/87-10/9/10
1984 SVO 302 HCI a basic bitch
1986 GT FOXY302 stolen and totaled R.I.P.
Posts: 1928 | From: Vallejo CA | Registered: Mar 2009
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87 4spd GT
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Member # 9216
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posted
no studder just sluggish feeling. So ho w do I get the seat of the pants feeling back....
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Putting a 'Playboy' brand g-string on your 'ol lady does not make her a Playmate
Posts: 49 | From: Redding | Registered: May 2009
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84SVOrick
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Member # 9039
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how are your plugs and wires?? when was your last tune up. i do mine every 6 months or so. check to make sure ur 02 sensors are pluged along with any other connections u unplugged during the removal of old parts.
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Bay Area Stunnaz
RIP Jeannera "FOXY302"
10/29/87-10/9/10
1984 SVO 302 HCI a basic bitch
1986 GT FOXY302 stolen and totaled R.I.P.
Posts: 1928 | From: Vallejo CA | Registered: Mar 2009
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87 4spd GT
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Member # 9216
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posted
Nah I plugged everything back in correctly, its just doesn't seem the same but it shouldn't I guess with not much back pressure, I feel the power later on in the rpm range too.
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Putting a 'Playboy' brand g-string on your 'ol lady does not make her a Playmate
Posts: 49 | From: Redding | Registered: May 2009
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84SVOrick
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Member # 9039
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Same thing happened when I went from a stock throttle body to a 70mm, I had lost a lot of bottom end but gained a lot more top end power.
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Bay Area Stunnaz
RIP Jeannera "FOXY302"
10/29/87-10/9/10
1984 SVO 302 HCI a basic bitch
1986 GT FOXY302 stolen and totaled R.I.P.
Posts: 1928 | From: Vallejo CA | Registered: Mar 2009
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blown95svt
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Member # 8893
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posted
Throw some timining in the bi***! Freeing up the exhiast should let us put a bit more timing in it, maybe that will help. Or put some gears in it.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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87 4spd GT
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Member # 9216
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posted
shouldn't 3.73's be enough though?
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Putting a 'Playboy' brand g-string on your 'ol lady does not make her a Playmate
Posts: 49 | From: Redding | Registered: May 2009
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blown95svt
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Member # 8893
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posted
My bad I missed that part! Try giving it some timing.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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