I found this the other night and it was super helpful with finding offsets and tire sizes that will fit. Hope this Is helpful:http://www.rimsntires.com/specspro.jsp

 

I am gonna get 15X7 110X4 for my 79 but I don't know nothing about the offset. What offset would a 79 take with no body or suspension modifications? PLMK, thanks

 

I've got 15x7s but I need new tires. The previous owner put 195/60/15's on and they're way too freaking tall. I need to get some 205/50's, STAT!

 

I'll just drop my sig info in here...

 

I have not seen your car in person but based on the pix, you have the wrong backspace. Do you have the #s for each barrel?

 

Some of that is the lighting on the pic, Mel; bright afternoon sun blasting straight into the wheel wells. Emphasizes the gaps & makes the wheels stand out.

Those are 15x7, +10 rims with 205/50-15 rubber. Inner tire face is only about 6mm from the strut tower/spring, so bringing them in any more would be chancy with stock-profile springs. Coilovers would give more room, likely.

Garage fitment pix:

 

Here is what i would do.
4.75 backspace. inner barrel should be 548. Outer barrel should b 527 or 528.

Front inner 543 or 548. Outer 522 is perfect.

 

HI guys this site has been very helpful,,I have been doing some homework on this for a couple of days for my 1979 rx7 and this is what I put together that works according to this site,,tires 205/50/15 with Rims 15x7 with a offset of +10,,using one inch adapters,even if I put on the RB 1 inch lower springs everything should work perfect, I'm I right ?

 

You'll still need to roll your fenders with that setup. I ran 205/50x14's on the back and they were cut within the first 50mi on my 80LS. This was WITHOUT the spacers you mention which would move the centerline of the wheel outward;


The tires were a bit 'fat' for the car, and with matching fronts became harder to steer - you had to be moving to make manual steering easier. Rolling the fenders rixed the clearance issues on the outside. For those interested, these are American Racing 14x6 wheels with centercaps. I don't recall the offset, but they were suitably wide compared to stock 13x5.5's on the 80LS above. (And I still have them in my garage...)

 

I guess I got pretty lucky the PO had a nice set of 15's on mine because 14" mudtires are impossible to find

 

http://m.ebay.com/itm/151217603037?nav=SEARCH
Half way there

 

I'm getting these with some wobble nuts, cause I'm sick of looking for tires.

http://www.ebay.com/itm/4-NEW-15X6-5-4x108-BLACK-STEEL-WHEEL-42-WHEELS-RIMS-/141573256596?hash=item20f66c7594&vxp=mtr

 

I bought these rims a month ago.
bbs replica. Lenso 15x7 +20
they have them undrilled so they did 4x110 for free.
tyres are 195x50x15 stock suspension, just lowered springs. ( heated and formed)
No rubbing at all.

 

Great looking car, Alexanderspy! Those are classic wheels,

 

Good looking car Alex

 

Is there anyone on this page using wheeel adapters ?

 

Thank you both