Sorry, sorry, sorry for the length of this! i just don't know how else to sort this all. You guys are the best and I would not post if i did not need the help!
First off I have a 1984 Indy. I want to put up the stockers up to keep them safe. I have searched here first… for 3 weeks at lunch and at night… UGH! Help! I'm just overwhelmed and I need feedback to see if I'm absorbing things right. Sorry this post is long…Lots of info, all intermingling to translate to a doable thought out recipe, w/in a budget. LOL! But maybe it will help someone else down the line!
The spouse has me on a decent budget for wheels (don't spend more then we did on my Stang!) I'm guessing $700-ish for a set, might fly. I wanted 19s, but the spouse is donating a pair of 265/35 18s off the Mustang. I figure a bit of compromise might allow me to finally get some rims for the Indy. So the plan is to find 18s that will hold a 265/35 for the rear. The front is open for what ever in an 18… I just want everything to fit as close to exactly flush with the fender. I also want to lower the car as much as possible to get a tight fender to wheel look. I have also searched coil-over conversions for the rear and plan to do one. Still up in the air on sleeve and spring length to clear my 265/35 r18 rear tires…
I have searched and have gotten very frustrated with trying to digest everything, as there is so much back and forth and unresolved/unanswered threads. So much is archived and so many times offsets or widths are not mentioned together. I think I have an answer and then I find a contradiction. I thought I had it all ironed out when I was using Joe Torma's Wheel diagram, but in searching I see rims/tires fit differently then the diagram says. I'm not sure if the fitment contradictions/differences are strictly the 88s? Or all related to tire bulge?
1. So first: what width rim with the free tires I have?
I know 9 inch rims will be ideal, but what else is doable? The rim selection when talking BUDGET is small. I feel I could go with 8.5 inch safely. There are tons of 18x8 in my price range, but I bet that’s too narrow for a 265??? One shop said I could do it no problem, but they want the sale. Staggered sets are not easy to come by in the style I want.
2. Based on the rear width if I go 9s… I know I need coil-overs, plus this is best for lowering. I saw someone say they had their 18x9s hit the coil-over conversion perch. What type of clearance is gained with a coil-over conversion on an 84? I want to translate that clearance over to Torma's diagram, so I have a good workable reference. Can an 18x9 tuck in the fenders flush, with a coil-over conversion? If not, then the 8.5 width would be better. Remember I also want to lower the car! I also have read the coil-overs clearance can be altered slightly based on the spring length and sleeve length. Maybe I need a longer sleeve and a shorter spring to get the car low and still give myself the needed clearance with the 18x9???
3. Offsets… I'm asking for you guys help a lot here… as I have said I want the car's rims/tires as close to exactly flush as possible. I know tire bulge will play a large part and it is not completely factorable. But I want to get close… Is there anyway to get an idea of what bulge to expect? I looked at Torma’s tire diagram too, but there is nothing in the 265 range. If I can figure a receipe it will make it easier for me to figure my own fender hangout without bugging you guys.
A. Rear: Based on Torma's diagram,
Rim 8.5 wide… 42 offset will put the RIM at the frt fender edge, which the rear is slightly narrower... if the 265 bulges it will bump the width out further right??? So do I want a 45 to 48, to keep it flush? But past a 42 gets into the strut line… will the coil-overs give me enough clearance?
Rim 8 inch… 35mm offset is very popular puts the Rim right on the frt fender edge, but then the wide tire will definitely add some bulge and push me out past the fender? 38mm puts me at the rear fender edge with the RIM. Will 40mm, give me enough to account for the bulge? I've seen most of these offsets... Or do I need to go as far in as 42mm?
B. Frt: Seems based on Torma's diagram
Rim 8.5 inch: looks tricky,(if even doable??) however, the tire is open to any size and can be narrower to stand w/ a straight sidewall to stay even with the fender. So can a 42mm actually clear the spring/strut and suspension? But then will it clear when turning?
Rim 8 inch: So with the above statement I think an 8 is better for the front. But will it clear in an 18 w/o rubbing the frt spring once lowered (I will cut stock springs for now)? So maybe 35mm since I can be open to any tire giving me a straight sidewall and it will give more spring clearance. 38mm might be safer for the fender flushness, or 40mm to stay in the fender, but am I getting too far into the suspension?
Or do I just need to go to a 7.5 in the front?
See I've made myself crazy with doubt and frustration! It’s even worse by the lack of options out there in width and offset with a staggered stance. Especially when I want them in white to throw back to the indy style… UGH.
So far I have found in white
18x8 Drag DR-42 w/ 35mm offset (no staggered option or other offsets)
Worried about the 265 bulge throwing me out of the fender lip
18x8 MSR w/ 35mm offset (no staggered or other offsets) backordered - favorite & the exact look I want!
Worried about the 265 bulge throwing me out of the fender lip
18x8.5 XXR w/ 48 offset (no staggered or other offsets ) Not sold on the looks
Worried about the clearance of the suspension in rear, but esp frt. (maybe spacers?)
Still looking... these are just the best I have found so far in white. If I must I will get another finish and powder coat them, but the spouse might kill me!
Thank you for any help at all on the subject. I just want to buy right the first time!
Joe's diagram (if it posts for me)

------------------
"I'm just a girl..."1984 Indy Fiero Pace Car[This message has been edited by redraif (edited 06-29-2011).]