Intake Manifold Help
01-27-2013 | 11:55 PM
#11
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Talking EFI.
I don't think your going to find a manifold that will work with the rest of the Merc FI system. Is this what you have?
http://www.perfprotech.com/mercruise.../180?model=507
You could try posting in the parts wanted section on boating forums or search the net for used ones. Or you could always chang to carbs. 2K for just the manifold section is rediculous.
I don't think your going to find a manifold that will work with the rest of the Merc FI system. Is this what you have?
http://www.perfprotech.com/mercruise.../180?model=507
You could try posting in the parts wanted section on boating forums or search the net for used ones. Or you could always chang to carbs. 2K for just the manifold section is rediculous.
Thanks
01-28-2013 | 12:00 AM
#12
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I know of 4 502 magnum MPI intake set ups, two are stock and two are ported.
The ported ones pushed a Cafe Racer into the low 70's, I would guess that would take 475-500 HP.
Also have the cams and computers from the ported ones. The first thing you need on any of the BBC motors is a good exhaust.
The ported ones pushed a Cafe Racer into the low 70's, I would guess that would take 475-500 HP.
Also have the cams and computers from the ported ones. The first thing you need on any of the BBC motors is a good exhaust.
01-28-2013 | 12:02 AM
#13
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Talking EFI.
I don't think your going to find a manifold that will work with the rest of the Merc FI system. Is this what you have?
http://www.perfprotech.com/mercruise.../180?model=507
You could try posting in the parts wanted section on boating forums or search the net for used ones. Or you could always chang to carbs. 2K for just the manifold section is rediculous.
I don't think your going to find a manifold that will work with the rest of the Merc FI system. Is this what you have?
http://www.perfprotech.com/mercruise.../180?model=507
You could try posting in the parts wanted section on boating forums or search the net for used ones. Or you could always chang to carbs. 2K for just the manifold section is rediculous.
01-28-2013 | 01:34 AM
#15
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I'm not positive of all the exact changes, But just so your aware, All the merc 454/502 intake part numbers (805233A6) for the EFI/MPI are the same starting in 1993 through about 1998.
502 MAG MPI BRAVO (GEN VI) GM 502 V-8 1998
Click on Serial number
0L017000 THRU 0L085432
http://www.mercruiserparts.com/Show_...+INTAKE+PLENUM
But sometime after 1998 or more importantly the engine serial number 0L085433 THRU 0M024999 had a change in intake manifold part numbers (861300A2) along with a change in fuel injector size & part numbers & fuel regulator PSI.
502 MAG. MPI BRAVO (GEN VI) GM 502 V-8
Click on Serial number
0L085433 THRU 0M024999
http://www.mercruiserparts.com/Show_...+Intake+Plenum
Here's the list of engines for you if needed,
http://www.mercruiserparts.com/selec....asp?type_id=8
Good luck.
502 MAG MPI BRAVO (GEN VI) GM 502 V-8 1998
Click on Serial number
0L017000 THRU 0L085432
http://www.mercruiserparts.com/Show_...+INTAKE+PLENUM
But sometime after 1998 or more importantly the engine serial number 0L085433 THRU 0M024999 had a change in intake manifold part numbers (861300A2) along with a change in fuel injector size & part numbers & fuel regulator PSI.
502 MAG. MPI BRAVO (GEN VI) GM 502 V-8
Click on Serial number
0L085433 THRU 0M024999
http://www.mercruiserparts.com/Show_...+Intake+Plenum
Here's the list of engines for you if needed,
http://www.mercruiserparts.com/selec....asp?type_id=8
Good luck.
01-28-2013 | 08:47 PM
#17
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From: On a Boat
MPI Intake
I have a complete upper and lower with fuel rail 500 + freight PM your email addres and I will send you pictures.
Here's the link
Here's the link
Last edited by tunertech; 01-28-2013 at 08:58 PM.
01-30-2013 | 12:12 AM
#18
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I have a complete upper and lower with fuel rail 500 + freight PM your email addres and I will send you pictures.
Here's the link
Here's the link
01-30-2013 | 01:08 AM
#19
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Joined: Jan 2011
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From: Omaha Ne
The manifolds everyone is replying about are EFI. Electronic Fuel Injection, The MPI means Multiport Fuel Injection. There are two styles, the older system used a lift pump that mounted on the seapump. The other style are the ones that have been pictured & uses a cool fuel electric pump mounted behind the seapump. The 500efi & 525efi are completely different. Which one do you have? Can you post some pics? I have both styles that I can sell. Randy
01-30-2013 | 12:25 PM
#20
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The manifolds everyone is replying about are EFI. Electronic Fuel Injection, The MPI means Multiport Fuel Injection. There are two styles, the older system used a lift pump that mounted on the seapump. The other style are the ones that have been pictured & uses a cool fuel electric pump mounted behind the seapump. The 500efi & 525efi are completely different. Which one do you have? Can you post some pics? I have both styles that I can sell. Randy
