2nd Generation Specific 1986-1992 Discussion

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Old 11-09-2006, 12:14 PM
  #1  
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1. i heard that the n/a compression is different between s4's and s5's (s5 being slightly higher). is this true? i searched it and all i can find is that the s4 n/a is 9.4:1



2. does anyone know of a writeup for the m90 t-bird supercharger onto an n/a? i found a thread where a kid did it but it didnt have a writeup so i was wondering how difficult and what all he really did



thanks
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Old 11-09-2006, 02:45 PM
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Only thing I can answer from your questions is yes, s5 has lighter faster spinning roters and higher compression
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Old 11-09-2006, 10:43 PM
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It can be done but you are probably better off buying on of the atkins kits, and ditching the efi and going with a carb.
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Old 11-10-2006, 03:41 AM
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Originally Posted by jdm12a' post='844669' date='Nov 9 2006, 01:14 PM

1. i heard that the n/a compression is different between s4's and s5's (s5 being slightly higher). is this true? i searched it and all i can find is that the s4 n/a is 9.4:1



2. does anyone know of a writeup for the m90 t-bird supercharger onto an n/a? i found a thread where a kid did it but it didnt have a writeup so i was wondering how difficult and what all he really did



thanks






The kit would be a one off that you would essentially have to make yourself. If you od go that route may I suggest you look into the blower off of 04 and later GTPs. THey are series 5 Eaton M90's that have a significant improvement in efficiency over the series 3 blower that was on the Tbird.





BC
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Old 11-13-2006, 10:34 AM
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Originally Posted by jdm12a' post='844669' date='Nov 9 2006, 10:14 AM

1. i heard that the n/a compression is different between s4's and s5's (s5 being slightly higher). is this true? i searched it and all i can find is that the s4 n/a is 9.4:1



2. does anyone know of a writeup for the m90 t-bird supercharger onto an n/a? i found a thread where a kid did it but it didnt have a writeup so i was wondering how difficult and what all he really did



thanks


s5 na rotors are 9.7:1
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