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91 crx HF/67 jeepcj5
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Discussion Starter · #1 ·
my crx is running a little rough i want to know what can i do with a d15b6
8 valve? the redline sucks on it what can i do to raise it? the engine needs a rebuild badly i got eccess to a 8 valve head from a 93 civic cx 8 valve head
should i get it since the head on it got a screwed up plug threads? is the newer intake better? it looks better
 

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91 crx HF/67 jeepcj5
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285 Posts
Discussion Starter · #3 ·
right now im looking just to get my mileage back and a little power back im getting about 25 to a gallon and this summer is for swap i was getting about
45 to 60 depending on conditions.
 

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This goes for any motor, but port match the new head to the intake and exhaust. I'd go with a A6/B7 intake and throttle body along with a Z6 head gasket to raise compression like any other motor. Sure you'll never have the most power, but you can at least squeeze a little more out of it.
 

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91 crx HF/67 jeepcj5
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Discussion Starter · #7 ·
thanks the only thing i dont like about the 8 valve is the redline im gonna be putting in a ZC in the summer i found a nice place that sells cheap engines near my area should i keep the tranny or would a si tranny be better?
only thing i cant find a si tranny in my area.
 

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Get the Si tranny, get one shipped if you have to.
 
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