going rx-7
05-14-2002, 10:02 AM
#13
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Originally Posted by ILUVMY88CABRIO' date='May 14 2002,04:00
I wouldn't rule out a S4 (87-88) turbo II. They have a slight weight advantage over the S5 (89-92). But the S5 has more hp.
05-14-2002, 01:34 PM
#15
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i think the engine of the S5 is also upgraded. the S4 NA only has 146 hp stock, the S5 has 160 hp stock along with a higher red line. I think the engine has lighter rotors and better seals and other upgrades.
The S5 does look better. I especially like the rear tail lights. the rims are also more racey.
The S5 does look better. I especially like the rear tail lights. the rims are also more racey.
05-14-2002, 06:19 PM
#17
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Originally Posted by supraguy' date='May 14 2002,19:07
yeah im diffenitly gonna upgrade the turbo. if thats the main reason for the hp advantage in the S5 then i'll probably look for a S4, they're a lot easier to find and cheaper too. thanks for the help.
05-14-2002, 07:11 PM
#18
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Originally Posted by 13BAce' date='May 14 2002,17:19
Yeah, the turbo is the main thing. The compression is a little higher in the 89-91 cars, but not by much. The 89-91 intake manifold is slightly better, but it's not a huge difference.
05-15-2002, 01:15 AM
#19
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Originally Posted by Powerpack' date='May 14 2002,18:11
What about N/A version, it's a 15 hp gain? Maybe the new intake has more effect on the N/A's.
The extra hp a S5 has just makes up for the extra weight.
Here is a link to info on both S4 and S5..... beyondtheredline.fd3s.net
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