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Registered
Join Date: May 2002
Location: Snoqualmie, WA
Posts: 601
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FI system compatability....
Will a 76 2.0L complete FI system fit on earlier years (73-74)? I would only need the same 3 stud intake port, correct?
THX in advance...
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Dave Korijo 73 Olympic Blue 914 1.7L (2L /4 back in progress) 69 Highlander Bug 1776 93 GL EV 2.8L The Van ™ 914club.com Member #914 |
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12-10-2002, 07:17 PM
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Join Date: Jun 2001
Location: Central Florida
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If you are placing it on a '73 or '74 2.0L, then yes, but if it is a 1.7 or 1.8 (1974) the sheet metal is different as the spark plugs are in different locations.
Do you have a California 2.0L FI system. If so, it may have some additional stuff on it that may rob it of power as compared to rest of state 2.0L systems (Cat converter, air pump ports in the cylinder heads, more restrictive exhaust). Regards,
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Qarl |
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12-10-2002, 07:25 PM
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Ornery Bastard
Join Date: Sep 2001
Location: South Sound
Posts: 2,879
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All '75-'76 cars have air pumps, regardless of CA model or not. The only difference is that the CA cars have the cats and EGR.
The '75-'76 2.0 cars also have a different ECU part number than the '73-'74 2.0 cars. I remember that when the ECU on my '76 packed it in, I could _not_ use a '73-'74 ECU, I had to get the proper '75-'76 ECU. My car is a 49 state car and it doesn't have the cat. Aaron
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--------- Silver 1998 Volvo S70 T5 <- Daily (Anja) Guards Red 1986 951 <- Seattle car (Gretchen) White 1976 914 2.0 F.I. <- Prodigal car, traded away then brought back again (Lorelei) |
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12-10-2002, 07:28 PM
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I more or less just want to know. Knowledge is power, huh.
Thanks guys...
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Dave Korijo 73 Olympic Blue 914 1.7L (2L /4 back in progress) 69 Highlander Bug 1776 93 GL EV 2.8L The Van ™ 914club.com Member #914 |
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12-10-2002, 07:37 PM
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The 76 FI will work fine on any 2.0L car as long as you use the matching parts.
The 73 2.0L is an odd ball system since it uses the same ECU a 1.7L. Thus it has the different CHT sensor with the ballast resistor and different MPS. Aaron, I don't see any reason a 76 ECU wouldn't work fine in a 74 car as they are very similar. Geoff
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76 914 2.0L Nepal Orange (2056 w/Djet FI, Raby Cam, 9to1 compression) www.914Club.com My Gallery Page |
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12-10-2002, 08:15 PM
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The only reason I can think of that it wouldn't work is that the later thermo-time switch (I think it is) requires another wire that is powered by the ECU.
There might have been one other difference in the wiring and such... Mind you, there is a difference between "fits and runs" and "fits and works completely correctly". --DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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12-11-2002, 10:03 AM
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Ornery Bastard
Join Date: Sep 2001
Location: South Sound
Posts: 2,879
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Quote:
Aaron
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--------- Silver 1998 Volvo S70 T5 <- Daily (Anja) Guards Red 1986 951 <- Seattle car (Gretchen) White 1976 914 2.0 F.I. <- Prodigal car, traded away then brought back again (Lorelei) |
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12-11-2002, 10:43 AM
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'76 ECU also has over-run shut-off, the '73 and '74 ECU's do not. The speed control circuit is also different, it has one more or less (can't remember) waveform generator. Check out my web page on ECU's for differences and compatability of components.
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12-11-2002, 11:41 AM
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1976 Porsche 914-4 2.1.L 2.1L
74 Porsche 914 2.0 
1970 Porsche 914 2.0L 
