1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

2G RPF1 17x9 fitment

Posted by mcubed45, Jul 13, 2020

Please Support JNZ Tuning
Please Support ExtremePSI
  1. mcubed45

    mcubed45 Proven Member

    36
    4
    Joined Mar 8, 2013
    Honolulu, Hawaii
    Hi guys,

    I'm looking to purchase some 17" RPF1's for my 95 GSX and wanted to get some advice on fitment. I'd like to run wider tires and I much prefer the flat wheel face on the 9"+ wheels vs the curved 8.5" and thinner RPF1's. From what I've been reading there's a number of challenges with getting the 9" wheels to fit.

    Front Brakes:
    I'm pretty content with the stock GSX brakes and I'm 90% sure I won't be doing a BBK in the future. I understand the 9"+ RPF1's have clearance issues with BBK's because of the different spoke design?

    Spindles:
    AFAIK the suspension components on the car are all stock. From what I've read, the 2ga has slightly less clearance on the spindles which limits how big an offset and how wide a tire you can run? Is +45 offset doable or no?

    Fenders:
    I'm currently at stock height and plan on only a small drop at most (probably an eibach prokit). Do you absolutely need to roll the fender to run a 9" wheel or is it more dependent on the offset/tire/drop? I would prefer to not to roll the fenders if possible. I also don't want the wheels noticeably sticking out past the fenders.

    Thanks!
     
  2. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    I'm running 17×9 35 offset. 255/35/17. Willwood brakes 13 inch front and rear rotors 6 piston front and 4 piston rears,with plenty of clearance front and rear. And also using coilovers.
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  3. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    20200713_194823.jpg 20200713_194831.jpg
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
    mcubed45 likes this.
  4. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    20200713_194854.jpg
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  5. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    With the 2ga knuckles , roughly a 3mm diffrence from 2gb. So as not to poke out a 35 offset on a 17x9 wheel and a 3mm spacer. Now with a 2gb knuckle no spacer. On my brake set up , I'm using a TCE Willwood setup that retains the rear ebrake. In doing so they machine a rear rotor down to make it into a hat, that the willwood rotor will bolt to, so no change in spacing .
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
    mcubed45 likes this.
  6. lasershark

    lasershark Proven Member

    1,584
    221
    Joined May 17, 2013
    over yander, Idaho
    17x9 with a 45 offset will likely not work. I run 17x9 +35 on my 95 and while I have not measured... I can tell you it's close at +35 but no rubbing, lowered a bit with no fender rolling. No pics on this computer but there are some in my build thread. I run 245/40/17.
     

    3K  5

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
    Loading...
    mcubed45 likes this.
  7. jkuga

    jkuga Proven Member

    117
    17
    Joined Feb 12, 2017
    Silverton, Oregon
    I run 17x9 +45 rpf1's. Before I had my camber adjusted correctly with the car lowered substantially they rubbed on the rear knuckle. Once camber and ride height were adjusted it was better but still felt close. I think I would have been ok with a 3mm spacer but I am using 5mm so essentially +40 offset and it has plenty of room. Here is a photo of the clearance in the back. 20200429_135629.jpg
    As you can see lots of room with a 5mm spacer. This is on a 99 gsx with 235 tires.
    I didn't role my front fenders but did roll the rear quarter panel lip that is on the inside.
    Hope this helps. I agree the 9" rpf1's look better then the smaller sizes.
     

    Street Build 497  8

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
    Loading...
  8. mcubed45

    mcubed45 Proven Member

    36
    4
    Joined Mar 8, 2013
    Honolulu, Hawaii
    Nice. I think other wheels have more clearance for BBK. I think I'm ok with limiting my brake options in order to run a wider RPF1 and have the flat spoke design I prefer.


    Thanks. I'd like to run at least a 245 if possible.

    Do you have a pic of how the wheels sit in relation to the fender? About how much drop do you think you have?

    I'm thinking about just going with +35 to be safe rather than mess with spacers.
     
    NWHTanK likes this.
  9. jkuga

    jkuga Proven Member

    117
    17
    Joined Feb 12, 2017
    Silverton, Oregon
    I honestly don't know how much I dropped it I forgot to measure before I installed my coilovers. If I had to guess maybe 2" but that's a total guess.
    Here's some photos of the fenders hope they help.
    20200714_103400.jpg 20200714_103150.jpg 20200714_103148.jpg
    If I were to do it again I would go with +35 and definitely save the hassle of spacers. I would like to run a 245 tire but Im not sure it would clear and I don't want to go with a bigger space and mess with extended lugs. Save yourself the headache and get the +35.
    Whatever you end up doing post up some pics of the wheel setup when you do!
     

    Street Build 497  8

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
    Loading...
    mcubed45 and NWHTanK like this.
  10. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    As you can see in his pick. A 235/45/17. I did run a 245/40/17 which from centerline 5 mm and hieght reduced 7.5mm. And with the awd swap a 255/35 /17. Which 10mm wider from centerline 2.5 mm lower from centerline. 20200429_135629.jpg
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  11. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    Here is mine. 20200714_171029.jpg
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  12. Ludachris

    Ludachris Founder & Zookeeper

    7,200
    1,389
    Joined Nov 12, 2001
    Roseville, California
    Great info and images in these replies. :hellyeah:
     

    Street Build 9K  0

    1997 Eagle Talon TSi AWD (sold)
    manual · 2G DSM

    Road Race Build 8K  10  23

    1991 Mitsubishi Eclipse GSX
    435.0 whp · 399.2 lb/ft · 1G DSM
    Loading...
  13. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    Those coilovers are still factory fresh from the day I got them from you Luda... :)
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
    Ludachris likes this.
  14. NWHTanK

    NWHTanK Proven Member

    1,207
    120
    Joined Apr 23, 2011
    Odessa, Missouri
    And here is the TCE rear willwood setup that retains the factory ebrake setup. They do make it avail without ebrake , that replaces dsm made hat with a aluminum hat like what is on the front, I went on thier site the other day and they now have a front 14 inch rotor option available now,, and im like $$&^^**%$. But oh well. 20200714_172902.jpg
     

    2K  7

    1998 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  15. lasershark

    lasershark Proven Member

    1,584
    221
    Joined May 17, 2013
    over yander, Idaho
    Also remember as stated by NWHtanK, the 2ga knuckles provide a little less room on the inside for clearance vs the 2gb knuckles. I can grab a few pics after I get off work today if you would like since I am a 2ga like you...
     

    3K  5

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
    Loading...

Share This Page

Support Vendors who Support the DSM Community
ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RixRacing RockAuto SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory