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Old 04-08-2012, 02:10 AM   #1 (permalink)
mikehallbackhoe
 
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lowering the front of a crx

I was wondering if just lowering the front of my crx, and leave the rear alone , would help mpg? I realize it would steepen the windshield slope, but would the reduced wind resistance in the front make up for it? the front is relatively easy to lower, and it wouldn't cost anything.

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Old 04-08-2012, 10:23 AM   #2 (permalink)
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I'd say yeah, probably would. You'll have less air going under the car and the rear glass will have a slightly shallower angle of decline. I'm not sure how well air stays attached to the rear glass normally.
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Old 04-08-2012, 11:11 AM   #3 (permalink)
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There are spring compressors that are about $10 a pair. I used those to lower the fron on my Infiniti Q45 about 1.50". The ride was too harsh and I backed off to about 1.25" and I am much happier. with the ride and the slight improvement in mpg.
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Old 04-08-2012, 11:19 AM   #4 (permalink)
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Moving the highest point further to the aft might work against you tho.

But i'm gonna say what i always say:

Quote:
Originally Posted by jakobnev
Best settled by experiment.
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Old 04-08-2012, 03:30 PM   #5 (permalink)
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the front has torsion bars, which can be adjusted to lower the front. the back has springs which would have to be replaced or cut. lowering the front is definitely cheaper and easier
. . has anyone tried just lowering the front on their crx, and what were the results? I would probably only lower it 1.5" ,maybe 2".
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Old 04-08-2012, 04:27 PM   #6 (permalink)
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The adjusters on the early crx's only give about a 1-1.5" total adjustment. I'd guess yours are about in the middle, so it won't reduce the front height by much. I've reduced mine to the lowest safe point. Not a big difference IMO, but it looks a bit better with less front gap. The rear can be lowered with a spring cut, but due to the panhard bar your rear axle won't be centered without an adjustable panhard rod, costing about $120 or you could make your own with rod ends.

The way to really slam the 84-87 cars is to re-index the torsion bars. I wouldn't do it without swapping for stiffer bars due to the very short travel you'd end up with. You would be bottoming out over most potholes.

I'd be more inclined to improve aero with a rear diffuser or tail extension or even rear wheel arch covers.
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Old 04-08-2012, 06:33 PM   #7 (permalink)
mikehallbackhoe
 
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thanks for the info. I lowered mine with the adjusters, but was considering reindexing the torsion bars. I didn't realize it would shorten wheel travel that much. think I will hold off.

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