A fellow FW'er hunting 18s as I.... You're running mult. tracks so let's seperate:
If keeping to 17" SS wheels I highly recommend 255/ 55 - 17. I said -55, -50s that are stock on an SS. This ratio retains (close) to the 28" oem FW dia. I ran two different brands of that size on my last FWB and the section width was quite wide but fit with the usual modding of the skirt tabs. The guy who has that car now just bought 265 series something with those same SS wheels and they reportedly add a little more dia. to fill the wells more while still clearing everything.
Going to 18 here's some intel I caught recently in discussion with a forum member while considering buying a setup of his. He has a staggered set of 8" and 10" 18" aftermarkets with 285/40 - 18 on the rears. He replied to my concerns about that configuration of such a wide wheel and meaty tire by stating several other guys run that same setup on their FW's. The backspace/offset on his particular wheels required spacer/adapters, but that is not the topic of this thread.
The section width of the tire you're considering is 11.5", while the 255/55-17 I was running were 9.8" - and those were tight to the outside as it was on mine even with modded tabs. Now on the other hand, those 285/40s I referred to the other guy saying will work have a section width of 11.4" which is darned close to what your choice. That 9 1/2" wheel you're considering is on the narrow edge of the recommended widths of 9 1/2 - 11" for that tire. Since the section width I saw was measured using a 10" wheel then you might see a minuscule less sect. width for teencey better clearance.
All the above points to quite an exercise in cypherin' as Jethro Bodine would say. I'd say your section width and wheel BS/offset is the diciest bits. Me, Ima go in slightly different direction. I want rotatability and pretty much steering toward some 18" 8 1/2" CTS takeoffs with spacer adapters. And maybe 1/2-1" more tire dia. for a little more sidewall slash comfort. Exactly what wheels are you considering?
If you've already poured over the "billions and billions" of threads on our cars' fuel woes then fine. But touchy starts to me could be as much grounds, FPR, dirty injectors, filter, TPS, IAC, PCV, intake leak, broke hose(s) or ??? as much as a fuel pump. You might have someone crank it while you smack the tank with a 2 x 4 just forthehelluvit to see if the common burned harness.
\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
Last edited by 96 Black; 05-30-2017 at 07:58 AM.