prfb4u

hi i am in the market for some.aftermarket rims,i think the wheel size is 4-114.3 am i right,i see some drag rims i like but dont know what offset to get,help please,thanks

renns

The FSM says 45mm, but I've seen others quote 40mm.

The FSM is here:
http://foxed.ca/foxed/index.php?page=rx7manual#firstgen

prfb4u

hi i found some maxxam screech wheels,4-114.3 38 offset.will these fit someone help,thanks.

Rx-7Doctor

iTrader: (13)

There are a ton of threads on this subject-

Here are 2 of them-

https://www.rx7club.com/showthread.p...ght=rim+offset

This one explains the what's and why's plus if you want to find more threads use the search terms, "Rim offset".

https://www.rx7club.com/showthread.p...ght=rim+offset

renns

doc,

I've recently been researching the same topic, and found that first thread is full of contradictory and misleading info. The second one is better, but it's still a bit of a challenge to find straight-up answers on this stuff. I do understand your response though, as the original post leads one to believe little research has been done.

prfb4u,

I went through some of the calculations to check fitment of my wheels here:
https://www.rx7club.com/showpost.php...00&postcount=6

Here's a calculator I found helpful in running the numbers. Stick the stock wheel/tire info into one side, and your proposed setup on the other. It'll show the impact of the wheel/tire change, and hopefully give you enough info to make an educated decision. The best option would still be to find someone running the same wheel/tire combo you propose. Good luck in your search.

RotaryRevn

I have also been researching this lately and cannot fiind a straight answer. The lower the offset number, the more the wheels will stick out from center of the car. If you want your wheels to sit as flush as possible to the fenders, then stay away from the stock offset which I believe is about +38. Stock offset will leave your wheels in abit from the fenders (just like stock looks but not the most aggressive look imho). The best info I seem to have found is that the lowest offset you can go on a gsl-se without the wheels hitting the fenders or sticking out is about a +27 on a 7 inch wide wheel. Your best bet would be to find a pic of someones car (with GSLSE suspension) on here that has the stance you like and pm them and ask the size of their wheels and offset. You can go a little lower in offset number if you slightly stretch the tire which is a whole other topic. I think the non-gslse can use a slightly lower offset than the gsl-se.

prfb4u

thanks for thre info guys,how does a 15 offset sound,i want the tire a little out,because it lokks more aggresive as revn says.

gsl-se addict

iTrader: (3)

You also have to remember that offset depends on the width of the wheel. +38 on a stock wheel is not the same as a +38 on a 7" or 8" wide wheel. Backspace is a better measure if you are changing the wheel width. For a given backspace, you will maintain the clearance on the inside edge. You then only have to then worry about rubbing on the outside edge depending on how wide you go and if you increase the height of the tires or if there is more bulge in the sidewalls (increasing tire width on a given rim for example).

So when you seach for offset, that is why numbers are sometimes all over the place. It depends on the width of the wheel. The other factor is that the GSL-SE uses about a +40, while the 12A cars use more like 17-25mm. The wheel threads aways end up with a mix of 12A cars and GSL-SEs, so that also makes things confusing.

I think a +15 will stick out too far on the GSL-SE, but it depends on the wheel. What is the size of the wheels you are wanting?

renns

To expand on this, see the attached pic below, generated from and on-line calculator. Lower offset = deeper 'dish'. A 'zero offset' wheel has the mounting hub exactly mid-way through the width of the wheel. An even deeper dish wheel can be had by going to negative offset, but that isn't applicable to our cars unless trying to fill big fender flares.

Note as well that a wider wheel of the same offset fitted with the same tire will measure slightly wider across the sidewall, which may cause unexpected issues. A fellow GSL-SE owner described his wheel fitment issues in detail here. That link is worth a read, as it fully documents his Panasport install. The only confusing bit on that page is his reference to stock GSL-SE offset being 40mm, which conflicts with the FSM.

What is your source for this number? I posted a screenshot from the FSM a few posts back showing stock offset is +45mm. For reference, the fellow at the link above installed 15x7 wheels with a 33mm offset. He ran into mild fender interference issues with 205/55R15 tires, although is car is lowered a bit by running Eibach ProKit springs. Some fender rolling provided the required clearance in his install.

prfb4u

the rim i am looking at,is a sportmaax 15 offset 7inch wide wheel,the also have a 38 offset wheel,i am looking for an aggresive look but so far what i hav efound are these mesurements,my car is not lowerd,and i have 16 inch welds in the back,seems to have decent room,thanks guys,i need some nice street wheels.

RotaryRevn

I got this number from 2 separate sources but they are just enthusiasts like us. I don't know their source of the info which Is why I said about +38. + 45 could be right. I just know that stock offset is like a fwd offset and it stinks..........lol



I think if you didn't have a gsl-se you might be able to get away with a +15 with a 195/50/15 tire but it all depends on your taste (how much tire sticking out is acceptable). If your going that close to the fenders, stay away from 205 and larger tires or you will rub. I recently saw pics of a non se with +12 (hmmm, or maybe it was +7) and it was already sticking out beyond the fenders so it also depends on how low your car is and how stiff your suspension is (if it will compress and rub). Me personally, I like the wheels to sit as flush as possible, or maybe just a tad beyond the fender with a slightly stretched tire. I don't like how it looks when the tire actually goes beyond the fender.

I have two sets of ssr exc fins in 2 different offsets but the offsets aren't listed on the wheels and I have only fit one wheel on the front of an se before buying it. I can't wait to get my suspension back on my car so I can test fit these wheels and see how they will fit. I'm keeping my fingers crossed.

ncb13

finaly...one thread that makes a little sence to me. i'v looking up off sets for a month now and nothing worth a dam about se's...all people want to know is a yes or no.

so let me get this straight i want to run a 15x7 and a +38 down to a +27 will not stick out of the fender well or rub

electric man

stock se offset is +40. look inside of stock wheel and its stamped into the wheel. i have +40 offset and 16 x 7 inch wide rims and have about 1/4 inch space to the front strut tower. +45 will rub could go +38