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Racecar building |
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Hurst390
AMC Addicted Joined: Apr/20/2008 Location: secret Status: Offline Points: 5818 |
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Looks like a lot of fun..I wish they had something closer to me like that..
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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klvn8r
AMC Apprentice Joined: Feb/26/2012 Location: Texas Status: Offline Points: 160 |
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If you're still in Illinois, that should put you close to something decent. Road America in Elkhart Lake, WI. Blackhawk Farms, Mid Ohio? Its just money...they give you more every two weeks, right?!!
klvn8r |
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asifnyc
AMC Nut Joined: Apr/30/2008 Location: SF Bay Area Status: Offline Points: 390 |
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depending on who you run with you may *not* be required to run one... here's what the NASA CCR states (below). I haven't figured out what I'm doing yet but I did by a tow STRAP instead of a hook. We'll see if I come up with a good place to attach it. You could put a tow point on the rollcage at the upper corner of the driver's front window. we have one there on the chumpcar RX7.
11.4.19 Tow Eyes It is STRONGLY recommended that all vehicles have at least two (2) easily accessible (and usable) tow eyes; one (1) in front and one (1) in back. The tow crew should attempt to avoid damaging the participant’s vehicle. However, should damage occur in the course of loading, towing, preparing to tow, or unloading NASA and / or the tow crew will not be held responsible for any damages. |
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butz_o7
AMC Fan Joined: May/20/2016 Location: Waterloo, WI Status: Offline Points: 13 |
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Hey asifnyc,
I think your car is awesome!! I'm building a pro-touring 71 Javelin AMX. Your car has given me some great ideas. I have the Control Freak IFS for the front and also the rear set up. Javelin74 told me to hit you up for some info. I would like to order rims and tires, I see you are running 17x9 with a 6" back space. I would like to run 17x11 in the back? What kind of back space would I have to use? Any help would be appreciated. Thanks, Matt |
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asifnyc
AMC Nut Joined: Apr/30/2008 Location: SF Bay Area Status: Offline Points: 390 |
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Hey Matt. It's not just the rim width. Need to know what width TIRE you want to run. I assume you are running an AMC 20 rear? I have a Ford 9" in the racecar.
Do you have any wheel/tire you can put on to take measurements? What I've done to figure out backspacing is to put something on the car that I can eyeball and take measurements. You want to figure out how many inches you have from the inside of the tire to whatever the thing that the tire will hit first. Usually the leaf spring but you said you have the CF 4 link right? Then you measure from the outside of the tire to the edge of the wheel opening. So let's say you have an inch both inside and outside and you want to increase the tire width 1" over the mock-up wheel/tire. Well that means your going to gain a half inch to both the inside and outside. In my example I said you had an inch both directions so that's fine. If you also want to move the tire in or out then you play with backspacing. So let's Change my example and say that you had 1" to the inside to play with and 2" to the outside. You want to grow the tire width 1" BUT you also want to push the tire to the outside to be flush with the wheel opening. Well the outside gets a half inch bigger because of the wider tire. If you then also decrease the backspacing by an inch and a half you now have the wheel flush with the wheel opening and you have 2" of room to the inside obstruction. Conversely increasing the backspacing will move the wheel to the inside of the car. Hopefully that's not as much of a pain to read as it was to type on this tablet but if I lost you just give me a call and I'll see if I can do better talking you through it. I'll PM you my number. Please post pics of your car. Sounds female caninein'! |
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butz_o7
AMC Fan Joined: May/20/2016 Location: Waterloo, WI Status: Offline Points: 13 |
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Thank you for the info. I'll try to get some pics up soon. I've got my 73 or 74 I can get measurements off of.
Thanks again, Matt |
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asifnyc
AMC Nut Joined: Apr/30/2008 Location: SF Bay Area Status: Offline Points: 390 |
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great. also, don't forget to think about DIAMETER of the tire as well... you can adjust by selecting the sidewall height you want. ie, 275/40 vs 275/45...
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GreggR
AMC Addicted Joined: Aug/21/2009 Location: Painesville, OH Status: Offline Points: 1267 |
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I've made some glacial progress on the '75 Hornet...
The air-shocks that the PO installed in the rear are history. KYB Gas units are stradling the one-legger 15. The old AMC axle will eventually get replaced by a SN95 Mustang 8.8... but that's down the road. The ADDCO 915 small-body rear bar went in today. Oddly, this install came up twice today in the Suspension section... I fitted the Bullitt 17x8's as well. I used 1" wheel spacers, which worked well. When I do the front-end/disc brake upgrade, the 1"-ers may need a redo... This is going to be a slow go... but I want to keep making progress... Thanks to everybody who has helped keep this thread active... love this site...
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No matter where you go, there you are... Buckaroo Banzai.'75 Hornet Hatchback
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toolmanxiii
AMC Addicted Joined: Oct/16/2010 Location: Moncton Canada Status: Offline Points: 1384 |
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Race ? 8.8 won't hold HP . 20's are stronger and easy to swap . Look in drive line here . |
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71 360 Hornet sst 83 2wd 360/727 Eagle wagon (crashed)
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WingedSpirit
AMC Apprentice Joined: Jan/07/2009 Location: NE Ohio Status: Offline Points: 87 |
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Great Gregg, any progress is good.
Spirit should be back out at Mid-Ohio Aug 5-7 SCCA Cincy Region. It's been a long road too. |
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Straightaways are for fast cars...turns are for fast drivers
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