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Kirkham Motorsports

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Old 08-24-2014, 11:34 AM
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Well - back from the test drive and good to report that when in third it seemed well anchored there and no hint of "kick out". Pretty sure the boot has been the problem because it happened about every time when I first got it running but after positioning the boot down lower it became less frequent until it was just once maybe every 2 or 3 drives. You can see how low my shifter rests in 3rd gear in this photo.



Just no room for all that rubber.

Yeah, if 428Street was reporting in at all I would be worried about the reaction, but I haven't heard from him in quite a while. Must be off fishing.

It looks like next I may have to re-work the secondaries. I tried Patrick's zip-tie trick and punched it pretty good in 3rd but looks like the secondaries never budged. I guess the jump I'm feeling is just the rear carb primaries opening up. Apparently need some lighter springs in the secondary pots. Not that it felt short of forward thrust however.

Sorry Chase - since I got married 34 years ago I haven't ventured into anything remotely resembling food prep - except grilling a couple hamburgers every few years. And those usually turn out kind of iffy.
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Old 08-24-2014, 12:52 PM
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Quote:
Originally Posted by DanEC View Post
I tried Patrick's zip-tie trick and punched it pretty good in 3rd but looks like the secondaries never budged. I guess the jump I'm feeling is just the rear carb primaries opening up. Apparently need some lighter springs in the secondary pots. Not that it felt short of forward thrust however.
You're making great progress. Getting your secondaries to open "just right" will make your car feel "zippier" without really stomping on it -- your low speed performance will actually increase. Make sure the zip tie is not so tight around the shaft that it acts to hold the secondaries closed.
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Old 08-24-2014, 07:34 PM
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I can't believe how low third gear is on your shifter. I am surprised that there is that much variation between cars. Mine sits much higher. The bend in the shaft is at least two inches above yours.
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Old 08-25-2014, 04:21 AM
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I can't believe how low third gear is on your shifter. I am surprised that there is that much variation between cars. Mine sits much higher. The bend in the shaft is at least two inches above yours.
I know - me either. And this is an ERA-prepped Hurst shifter and handle. I bought it used from another ERA owner who was changing to another transmission. I have a layer of insulation on top of my tunnel but that's maybe 1/8 inch thick. Might be something with the mount plate.
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