late engine in early car?
10-30-2006, 10:03 PM
#1
Three Wheelin'
Thread Starter
late engine in early car?
what would i need to make this work? I have an 83 motor, that I'm tearing down and I'm going to put high comp pistons in it. But I wonder if i can run the 84 DME/AFM or should i used an late DME/AFM?
Also, I hear the cam profile is different on the late cars, how hard is it to swap cams?
Also, I hear the cam profile is different on the late cars, how hard is it to swap cams?
10-30-2006, 10:24 PM
#3
Three Wheelin'
Thread Starter
Originally Posted by Mike Markota
put early fuel rail on and use your early dme /afm or use late rail with late DME/AFM
I dont think there is an easy way to mount a late rail on an early car, the fuel lines will have to be moved, which would be a PITA.
10-30-2006, 10:29 PM
#4
Race Director
yes you can use early rail and late dme/afm.. sorry wasnt thinking 100%.(and I've done this before.. late DME/AFM in my 84)
Last edited by MM951; 10-31-2006 at 09:58 AM.
10-30-2006, 10:37 PM
#6
Three Wheelin'
Thread Starter
Originally Posted by Legoland951
The high compression engine has a different DME than the rest of the other years. The part number ends with a 5 instead of 1 or 2 of the early DMEs.
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10-30-2006, 10:40 PM
#8
Three Wheelin'
Thread Starter
Originally Posted by tod84944
Just find a dme from a 88, and that will work.
The reason I'm asking is i want to take every advantage of the pistons.
10-31-2006, 10:11 AM
#10
Race Director
Ross,
You can do alot of mixing & matching. I ran a complete 87 924S motor in my 84 chassis. Now it uses the 84 block with 87 head & injection. I even ran an 88 block in there for a bit too.
You can do alot of mixing & matching. I ran a complete 87 924S motor in my 84 chassis. Now it uses the 84 block with 87 head & injection. I even ran an 88 block in there for a bit too.
10-31-2006, 11:45 AM
#12
Nordschleife Master
Originally Posted by M758
Ross,
You can do alot of mixing & matching. I ran a complete 87 924S motor in my 84 chassis. Now it uses the 84 block with 87 head & injection. I even ran an 88 block in there for a bit too.
You can do alot of mixing & matching. I ran a complete 87 924S motor in my 84 chassis. Now it uses the 84 block with 87 head & injection. I even ran an 88 block in there for a bit too.
10-31-2006, 02:21 PM
#15
Race Director
Originally Posted by mjaffe
Joe, I had heard through a local guy that 88 DME retards timing at high operating temperatures. Have you heard/do you know that? If it does, I imagine that would be less desirable for a track car. Any thoughts?
Dylan Scott keeps saying that. I have no data to confirm/deny.
My car runs with a chipped 87 DME. I ran for a few sessions with a stock 88 DME when I ran the 88 block. Seat of the pants and lap times seemed show a tiny bit more hp with chipped 87 DME so I just used that.
My 87 DME does not seem to have that issue.