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Author
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Topic: Which intake for a warm 289?
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74merc
Gearhead Posts: 1006
From: Demopolis AL
Registered: Jun 99
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posted 03-27-2005 01:58 PM
   
My cousin's Fairlane
289 bored 60 over
AFR 165 heads, 1.9, 1.6, with 1.7 roller rockers
Comp Cams 270H
1 5/8 longtube Hooker 6901 with 2 1/4 mufflers only
C4, converter stalls about 2200-2400.Right now we're running a Performer 289 intake with a 1 inch open spacer. We plan on 2.5 inch mufflers and dumps. It pulls hard to about 6200, then starts to slack off. I'm trying to talk him into a Performer RPM, he's leaning towards the Vic Jr. According to Engine Analyzer, it should peak at 7000rpms. What intake will give us 7000 rpms without sacrificing low end too much? ------------------
74 Mercury Comet
302, leaking Performer 289 intake, Autolite 4100, Hooker Super Comps
AOD
3:1
My website
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-27-2005 03:15 PM
Air gap is a good intake.
It's not the intake that is limiting th rpm, it's the cam.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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74merc
Gearhead Posts: 1006
From: Demopolis AL
Registered: Jun 99
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posted 03-27-2005 04:28 PM
A few people have said that, and a few people said the heads will flow enough to pull it to 7000.I wasn't sure which way to go.
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n2oMike
Gearhead Posts: 2419
From: Spencer, WV
Registered: Jan 2001
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posted 03-27-2005 06:42 PM
It DEFINITELY needs a different intake. The cam wil be about all done by 6200 rpm or so. The heads are indeed good to 7000 rpm on a 289. I'd purchase a large capacity dual plane like a Performer RPM, Air Gap or Stealth since the car still has an auto trans and tight converter. The Vic Jr won't show any improvement over those intakes until 5.5k rpm. As for cams, it needs a small solid lifter unit. The Comp 282S will spin it right up to around 7k rpm. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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RADRIDE
Gearhead Posts: 292
From: Va.Beach, Va.
Registered: Aug 2002
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posted 03-28-2005 08:43 AM
Id have to agree with the Air-Gap its a good manifold. I have AFR-185s w/ a 294s Comp. cam & it pulled strong to 7k to the tune of over 330hp to the wheels with open exhaust & was still at 314 up to 7400 rpm.
I think that was the end of the manifold as they put a 6500 rpm top in their advertisements.
This was all with everything right out of boxes. No port matching.
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FAFfords81
Journeyman Posts: 1
From: Tuscaloosa, Alabama
Registered: Mar 2005
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posted 03-29-2005 02:21 PM
FYI, the car has Pedestal mount heads for a 5.0. So running a solid lift cam would be difficult being as that periodicial valve adjustments would be neccessary. I am a friend of Glens and I agree that unless he goes with a bigger camshaft, the Performer RPM is the way to go.Later,
Vince.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-29-2005 07:48 PM
FYI:
They make adjustable pedastal rockers these days.  PS
Welcome to M&M Vince  ! ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
74merc
Gearhead Posts: 1006
From: Demopolis AL
Registered: Jun 99
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posted 03-29-2005 11:09 PM
unfortunately, his aren't. We're going the cheap route, he just got there before I did. but I have new floorpans!!
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