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Topic: 5-Lug finally done right. (Read 477 times) previous topic - next topic

Re: 5-Lug finally done right.

Reply #15
It might be worth trying with the Bullitt wheels. I'm assuming that you would be using the tires off of your Fusion wheels, and that .5" difference in wheel width might change the shape of the sidewall of the tire. Even then, 1mm shouldn't hurt you too much.
It's Gumby's fault.

Re: 5-Lug finally done right.

Reply #16
Maybe not now that I've gotten enough camber to clear the front fender lip.  I'm not particularly attached to the Fusion wheels, they were just easy 17" 5x4.5 wheels to scrounge up when I was working at the dealer.
1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

Re: 5-Lug finally done right.

Reply #17
I just ran out and put eyes on my car since I'm fairly low.

The 96-04 spindles add 5mm more track width per side over my 94-95 spindles. I could probably get away with an additional 5mm and I'm only running like .8 degree negative camber. I don't know how low you are, but I'm at 25.25" to the top of the fender arch.
It's Gumby's fault.

Re: 5-Lug finally done right.

Reply #18
Since I think I've got the front about right, I've decided to get some extended studs for the rear, and use smaller 1/2" spacers.  I'll deal with the issue of wheels when my budget recovers.  I put 2 grand into this project, and I can't absorb the the cost of wheels (or freight).  I just need to not destroy these tires.  The first day after the job, before I rolled the rear fenders, I shaved cowboy fringe off the sidewall of the left rear.  Had to pick it all off.
1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

Re: 5-Lug finally done right.

Reply #19
I kept browsing Facebook Marketplace and lucked out with my wheels. A dude had them listed for 200 and no one showed any interest. He later listed them for 100 and I stared at them for almost 2 weeks. He still had them and I came home with some SN95 wheels for 100 bucks.
It's Gumby's fault.

Re: 5-Lug finally done right.

Reply #20
I just ran out and put eyes on my car since I'm fairly low.

The 96-04 spindles add 5mm more track width per side over my 94-95 spindles. I could probably get away with an additional 5mm and I'm only running like .8 degree negative camber. I don't know how low you are, but I'm at 25.25" to the top of the fender arch.
Are you more, or less lowered than me?

1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

Re: 5-Lug finally done right.

Reply #21
It's really hard to say based on pictures. I think I might be slightly lower. I don't have a pic of a really comparable angle. These might show it. If you get a moment, try measuring from the ground, to the top of the wheel arch. I always measure right through the center of the tire. I'm at 25.25" in the front and about 25.5" in the rear.





Those are probably the best I have to show the lowness.
It's Gumby's fault.

Re: 5-Lug finally done right.

Reply #22
Mission accomplished. Narrowing the rear track by 1 inch overall has restored the track width, and by proxy, tire clearance I had before I got started.  All is now well.
1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

Re: 5-Lug finally done right.

Reply #23
Update: I can now brake hard enough to put the front tires into the fender liners, and front rubbing, though less, is still a problem. 
Maybe some new struts would resist bound better enough to help with that, and I'll see how much I can machine off the front spacers before the center bore becomes a problem.
1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

Re: 5-Lug finally done right.

Reply #24
Welcome to the world of crappy, stock Fox-chassis suspension dynamics.

Research "anti-dive" options.

Long live the 4-eyes!  - '83 Tbird Turbo

Re: 5-Lug finally done right.

Reply #25
I'd be really interested in any recommendation you might have, Chuck.  Maybe more than anyone else here.
1988 Thunderbird 5.0
GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, Full 2003 SN-95 brake conversion with Cobra fronts, BBK 1 5/8 unequal headers, H-Pipe.  Moates Quarterhorse tuning.

88 Thunderbird/Cougar EVTM
  (Thanks to EricCoolCats for hosting)

 

Re: 5-Lug finally done right.

Reply #26
My (performance) knowledge/info is getting kind of dated, honestly.

One of the bigger problems with the stock Fox rear suspension is the lack of "anti-lift". Under hard braking the rise rate at the rear of the car is pretty quick, and that transfers a bunch of weight forward, causing most Fox cars to look like they're standing on their nose in hard braking. Digging into the "anti-dive" geometry on the front of that car involves a bit of work, and I don't think it's done much anymore. I did the mods on the front of my car over 20 years ago.

The KB anti-squat traction brackets on my car are an older way to help slow down that rise rate, and keep the car from shifting so much weight forward when braking. He still is selling them, but you could probably also make something similar on your own.

Getting some stiffer spring up front would help too (I don't see anything other than stock springs listed on your build).

Long live the 4-eyes!  - '83 Tbird Turbo