2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

FD irons in an fc

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Old Aug 4, 2004 | 10:59 AM
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FD irons in an fc

i wonder if the irons in the fd motor make a part of the difference in power? as far a factory porting, is it different?

i was thinking i could use them in my fct2 conversion

hit me back

chris
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Old Aug 4, 2004 | 12:52 PM
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You can't use them. The would require custom motor mounts, and the rest of the pieces for the fd motor; manifolds, front cover etc etc. The port runners are a lot larger, porting is similar to s5 t2 irons.
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Old Aug 4, 2004 | 01:46 PM
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so in other words i could use s5 irons with fd intake runners? just currious, kidof a dumb question but i just had to ask to amuse myself with some ideas....

chris
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Old Aug 4, 2004 | 02:39 PM
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I would like to know the answer to that as well. What sort of complications would you run into trying to get the fd intake manifold on an s5?
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Old Aug 4, 2004 | 02:44 PM
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Would probably be easier to just use an FD motor. Or a cosmo 13b motor, the port runners on those are huge.
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Old Aug 4, 2004 | 02:51 PM
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An FD engine is a pain in the *** to put into an FC. They changed the engine mounts just to **** us off.
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Old Aug 4, 2004 | 05:42 PM
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Originally Posted by rotoboy20
so in other words i could use s5 irons with fd intake runners? just currious, kidof a dumb question but i just had to ask to amuse myself with some ideas....

chris
The intake runners are on the Irons. If you meant fd intake manifolds thats a negative, won't bolt up.
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Old Aug 4, 2004 | 05:44 PM
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Originally Posted by Dokta
An FD engine is a pain in the *** to put into an FC. They changed the engine mounts just to **** us off.
Some beleive its changed to handle the extra torque.
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