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PostPosted: Thu Jun 19, 2014 1:56 pm 
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CSM Junkie
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Joined: Sat Sep 22, 2012 6:40 pm
Posts: 667
Location: Indianapolis, IN
That is why I am doing it. With the f5m33 being geared for 205/55r16 tires, You get real buzzy running 195/55r15's. So the swap will definitely help. Not doing it for mileage. I get mid to high 30's so I am happy there.

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Thom
1991 GVR4 1025/2000 (PTE 1200's, 16g, DSMLink v3, gm-maf, eagle/ross, .020 over, 272's, EVO VIII Wheels)
1992 GVR4 866/1000 (getting everything from above)


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PostPosted: Sun Jun 22, 2014 10:13 am 
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Some call me a god
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Joined: Mon May 18, 2009 8:53 pm
Posts: 1494
Location: Seattle, WA
Quote:
Quote:
I need to jump on this taller 5th bandwagon.
I had a taller 5th gear on my Mirage. I honestly didn't like it. It was a F5M33 trans with a AWD 5th gear, which is a direct bolt-in affair. It lowered the RPM's so much that the car fell of its powerband in highway cruising, and I had to give it a lot of gas to pass people and things like that. The fact that the engine was lugging out of its powerband, and the fact that I had to give it more throttle to get around things, meant that my gas mileage didn't really improve any, if at all. I honestly hardly noticed a difference from the stock KM210. The F5M33 trans I installed already had the AWD gear put in when I installed it, so I can't tell you what the normal F5M33 5th gear was like. I will admit, it is nice cruising at lower RPM's in general. It's less noisy and vibrationy, but that's about it.
I just want to cruise at lower RPMs sometimes I drive about 75mph and it's screaming, it's enough to make the temps go up. Don't care about power band, that's what downshifting is for.

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89 Mirage Billet 20g 63t 12.4@120 417whp 400wtq @ English Racing.
89 Colt GT E316g
06 Silverado SS
07 ZX6R


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