few fox year questions.... pistons and FI

[NightLife]

hey ya'll what was the first year of Fuel Injection?

when did the fox's come with forged pistons compared to the hypereutectic pistons....

whats the compression ratio of each?

thanks

chad

 

[281pony]

i believe the first year was 87. forged was used from 87-91? compression is 10:1 i believe.

correct me if im wrong..

 

[mooktank]

i thought compression was 9:1??? dunno tho.

 

[Michael Yount]

85 the manual tranny HO was carbed; the automatic was the old CFI injection; 86 - 88 was speed density injection except CA for 88 was mass air injection; 89-95 was mass air injection. The CR in 85 and 86 was a bit higher I believe; forged pistons up until the last 2 months of 92 production. So late 92's (Jul/Aug production) had hypereutectics - as did 93-95's. Compression ratio for the later cars was right around 9:1 -- never as high as 10:1. Someone else will have to break CR's down by year for you.

 

[mooktank]

hey i never knew i had forged pistons thats cool. (91 shortblock)

 

[Daggar]

85 the manual tranny HO was carbed; the automatic was the old CFI injection; 86 - 88 was speed density injection except CA for 88 was mass air injection; 89-95 was mass air injection. The CR in 85 and 86 was a bit higher I believe; forged pistons up until the last 2 months of 92 production. So late 92's (Jul/Aug production) had hypereutectics - as did 93-95's. Compression ratio for the later cars was right around 9:1 -- never as high as 10:1. Someone else will have to break CR's down by year for you.

I mean... what can ya say about a freaking 5-oh encyclopedia that drives a Volvo!

 

[Michael Yount]

....and who STILL doesn't really know what year Stang the engine in his car came out of! The junkyard receipt said '91, the A9L computer in it (purportedly from the same car) had "89 Vert" written on it in paint stick, but when we ran the barcode/part number on the computer it said it came out of a 90 model. Go figure....the whole car has an identity crisis, why shouldn't the engine?

 

[Daggar]

....and who STILL doesn't really know what year Stang the engine in his car came out of! The junkyard receipt said '91, the A9L computer in it (purportedly from the same car) had "89 Vert" written on it in paint stick, but when we ran the barcode/part number on the computer it said it came out of a 90 model. Go figure....the whole car has an identity crisis, why shouldn't the engine?

LOL... well you've heard that after a while dog owners begine to look like their dogs (or vise versa). I think the same can be said about car owners.

 

[mooktank]

cant you look at the casting numbers on the passenger side of the block? you probably know all the coding rules. E=1980s F=1990s etc...