Lifetime Supporting Member
Join Date: Dec 2011
Location: Tallahassee FL
Bullitt Year: 08
Bullitt Color: HG
Bullitt Serialized Number: 4370
BULLITT UNIVERSITY! Heck yes. Needs its own "Discussion Thread" listing.
The theory of unintended consequences of vehicle modification is not just a theory, but an absolute law, just like Newton's 3 laws of motion (which also impact vehicle modifications).
Simple- Need just more negative camber for track 275/35 tyres and road trip 255/45 vs OEM 235/50 specs. Balanced towards smooth road trip tracking.
Solution- Camber bolts that old-school mechanic is familiar with. Several trips back to alignment shop with now great balanced camber setting.
Here is my saga, as a track addict.
Upgrade '08 Bullitt front brakes. Go to Ford 14" 4 piston Brembo package. Compatible with OEM anti-lock system, great. Upgrade to wider FORD SVT 18"x 9.5" wide rim, giving more contact patch, great. Ford specs this rim for American Iron Racing, great. Will be running 275/35 ultra high summer performance tyres. Perfect for road course. Happy.
But the 08' Bullitt rims do not clear the Brembo package. I love the OEM Bullitt rims and need to run Bullitt rims for show and wife's roadtrip comfort with 255/45 tyres, so spacers needed. Get Ford Racing front hubs with ARP 3" studs already installed.
Research to find slide-on spacers, cause the track rim/tyre combo will be too wide for the wheel opening with fixed bolted-on spacers and my mechanic is dead set against track with spacers, even with ARP bolts. Research IMBOC and find that 7/8" slide-on spacers work with Bullitt rims and 14" Brembo. Research and find 1 small company in CA that makes quality slide-on Mustang spacer. Order 7/8" spacer, but nope on 1 side to get a minimal 3mm caliper-rim spoke clearance. Get 1 inch spacers, perfect for 3mm caliper/rim spoke clearance, but now outer 1/2 ounce (14 gram) wheel weights bind caliper outside edge.
So, now with Bullitt '08 rims, I have to watch as the tyre tech puts 1/4 ounce (7gm) rectangular weights, with the weight long side alongside the inner spoke line, to get 3+mm clearance. And insist that the high and low tyre/rim marks are aligned. Dam insurance regs about being in the service bay. It is my ride and I do tip the tech.
Last edited by tossass4370; 03-15-2018 at 12:48 AM.