Widened GXP Wheels with 295/30/19 Tires - Page 5 - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #81 of 102 (permalink) Old 06-12-2012, 02:48 PM
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305's will fit lowered but you need inner well work.

2009 GXP White A6 Roof Onyx/Red, 619 , Magnacharger 2300, BAP Fuel Sys, CNC Heads, Stage 2 Cam, Kooks Hdrs & Cats, Corsa Exhaust, Livernois Dyno Tune, Roto-Fab CIA, Mini Tubed R Wheel-wells, Cut & Welded Wheels 9" Fr, 10.5" R, 265/35-19" & 305/30-19" Pilot Sport PS2's, Dark Window tint, BMR: Tnl Brace, S Frame Connectors, Trailing Rods, Bushings, Toe Rods, sway bars, DBA Slotted/Drilled 5000 rotors, Sphon LCA's, Pedders subframe bushings, Pedders fr control arm pkg, Supercar Coilovers.
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post #82 of 102 (permalink) Old 06-12-2012, 05:25 PM Thread Starter
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Quote:
Originally Posted by Bill in pgh View Post
Sorry I missed this post and to clearify the tires rubbed on the outside. My mistake was the 2" widening and installing the 1 1/4 spacer. Should have widened 1 1/2" with a 3/4 spacer. I put stock wheels back on the car and sold it to buy a GXP. After reading this thread I think I will be safe to widen the stock GXP wheels 1" and run 275's or 285's with no spacers. 04GT does this sound correct. I would like to get as wide as possible with no spcaers or adapters.
1" and a 275, I THINK you should be ok.

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Originally Posted by ottw View Post
305's will fit lowered but you need inner well work.
Damn. Your GXP looks killer!

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post #83 of 102 (permalink) Old 07-02-2012, 05:12 PM
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04GT what was the true width of the spacers you used? Somehow I couldn't find them, I need a set of spacers for my stock wheels during winter to use Brembos and wondered what thickness I could use. On ebay there's a set of 20mm or 15mm 5x120 14mm 66.9 hub spacers, just wondered which one.

Saw you still have the Corsa, have to meet upsome time and checkout my HSVs.

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post #84 of 102 (permalink) Old 07-02-2012, 08:39 PM
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I widened my GXP wheels 1.5", and got some 285/35-19's for the rear.

When I went to install them, they cleared the inside and outside OK, but the wheel was contacting the Spohn LCA!! Glad we noticed it before we rolled it.

I ordered the MotorSports Tech adapters, 3/4", correct hub-centric, and spec'd the M14x1.5 studs. Went to put them on today, and found that the lugs they supplied are not cut at the same angle as the adapters, so they don't fit flush. I sent an e-mail to them to ask what the solution should be.

It kind of pisses me off that they would send them out like this. I don't mind having to cut the original studs to add clearance for the wheels, but to not have the lugs fit flush? C'mon, man!

I'm going to hit the Fastenal tomorrow to see if they have anything that can work. If not, to the machine shop the adapters go, to have them countersunk to the correct dimension and angle.

I also bought an Eastwood fender roller, and rolled the fenders tonight. Pretty easy!!

'09 Pontiac G8 GXP, A6, Sunroof, MGM, #1664 of 1829
GMM RAMJET OTR CAI, Livernois E/TCM Tune, Kooks 1-7/8" LTs, catted mid-pipe, Hooker Polished SS MaxFlow mufflers - 394RWHP/386RWT
BMR Rear LCA's, stabilizer bars, end links, front LCA bushings, rear toe links and trailing arms, Pedders Street II kit, including subframe and diff bushings.
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Best 1/4 time - 12.52 @ 114.47, 1.94 60ft.
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post #85 of 102 (permalink) Old 07-02-2012, 11:22 PM
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Itís easiest if you just modify the LCA's



2009 GXP White A6 Roof Onyx/Red, 619 , Magnacharger 2300, BAP Fuel Sys, CNC Heads, Stage 2 Cam, Kooks Hdrs & Cats, Corsa Exhaust, Livernois Dyno Tune, Roto-Fab CIA, Mini Tubed R Wheel-wells, Cut & Welded Wheels 9" Fr, 10.5" R, 265/35-19" & 305/30-19" Pilot Sport PS2's, Dark Window tint, BMR: Tnl Brace, S Frame Connectors, Trailing Rods, Bushings, Toe Rods, sway bars, DBA Slotted/Drilled 5000 rotors, Sphon LCA's, Pedders subframe bushings, Pedders fr control arm pkg, Supercar Coilovers.
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post #86 of 102 (permalink) Old 07-03-2012, 08:14 AM
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Quote:
Originally Posted by ottw View Post
Itís easiest if you just modify the LCA's

I had thought about doing that, but that means pulling the rear suspension apart again. I have the proper cutting tools for it, but not a welder, and would also have to find a place to re-powdercoat them.

Not sure how that is easier, but it is an elegant solution.

'09 Pontiac G8 GXP, A6, Sunroof, MGM, #1664 of 1829
GMM RAMJET OTR CAI, Livernois E/TCM Tune, Kooks 1-7/8" LTs, catted mid-pipe, Hooker Polished SS MaxFlow mufflers - 394RWHP/386RWT
BMR Rear LCA's, stabilizer bars, end links, front LCA bushings, rear toe links and trailing arms, Pedders Street II kit, including subframe and diff bushings.
Hawk Ceramic pads, Brake Performance slotted and dimpled rotors, Russell stainless lines, Super Blue fluid.
Best 1/4 time - 12.52 @ 114.47, 1.94 60ft.
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post #87 of 102 (permalink) Old 07-03-2012, 08:20 AM
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Quote:
Originally Posted by BigZub View Post
I widened my GXP wheels 1.5", and got some 285/35-19's for the rear.

When I went to install them, they cleared the inside and outside OK, but the wheel was contacting the Spohn LCA!! Glad we noticed it before we rolled it.

I ordered the MotorSports Tech adapters, 3/4", correct hub-centric, and spec'd the M14x1.5 studs. Went to put them on today, and found that the lugs they supplied are not cut at the same angle as the adapters, so they don't fit flush. I sent an e-mail to them to ask what the solution should be.

It kind of pisses me off that they would send them out like this. I don't mind having to cut the original studs to add clearance for the wheels, but to not have the lugs fit flush? C'mon, man!

I'm going to hit the Fastenal tomorrow to see if they have anything that can work. If not, to the machine shop the adapters go, to have them countersunk to the correct dimension and angle.

I also bought an Eastwood fender roller, and rolled the fenders tonight. Pretty easy!!
I'm sad to hear about your experience with Motorsport tech. I have bought spacers/adapters from them in the past and had a good experience. Good quality and good service. I actually have recommended them to a few people. I am going to follow your progress closely, if their qualit has changed I'd like to know. Good luck, let us know what happens.


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post #88 of 102 (permalink) Old 07-03-2012, 08:35 AM Thread Starter
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Quote:
Originally Posted by soup070 View Post
04GT what was the true width of the spacers you used? Somehow I couldn't find them, I need a set of spacers for my stock wheels during winter to use Brembos and wondered what thickness I could use. On ebay there's a set of 20mm or 15mm 5x120 14mm 66.9 hub spacers, just wondered which one.

Saw you still have the Corsa, have to meet upsome time and checkout my HSVs.
I bought the Motorsports tech 3/4" adapters.

Yup, still have and love the Corsa. Hopefully us STL guys can get a meet together soon.

Quote:
Originally Posted by BigZub View Post
I widened my GXP wheels 1.5", and got some 285/35-19's for the rear.

When I went to install them, they cleared the inside and outside OK, but the wheel was contacting the Spohn LCA!! Glad we noticed it before we rolled it.

I ordered the MotorSports Tech adapters, 3/4", correct hub-centric, and spec'd the M14x1.5 studs. Went to put them on today, and found that the lugs they supplied are not cut at the same angle as the adapters, so they don't fit flush. I sent an e-mail to them to ask what the solution should be.

It kind of pisses me off that they would send them out like this. I don't mind having to cut the original studs to add clearance for the wheels, but to not have the lugs fit flush? C'mon, man!

I'm going to hit the Fastenal tomorrow to see if they have anything that can work. If not, to the machine shop the adapters go, to have them countersunk to the correct dimension and angle.

I also bought an Eastwood fender roller, and rolled the fenders tonight. Pretty easy!!
They sent me wrong sized nuts. They didn't fit over both the stock studs, or the adapter studs (same size anyway). Ended up having to buy new ones from a local ace hardware.

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post #89 of 102 (permalink) Old 10-11-2012, 06:51 PM
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Would widening 1" allow you to run 285 without adapters and stock suspension?
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post #90 of 102 (permalink) Old 10-11-2012, 07:29 PM Thread Starter
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Originally Posted by Fast GTO View Post
Would widening 1" allow you to run 285 without adapters and stock suspension?
Couldn't tell ya for sure. It all has to do with backspacing. I think even if I did a 1", I think just for aesthetics, I would have run an adapter so the wheels sit flush with the fenders.

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post #91 of 102 (permalink) Old 10-11-2012, 07:55 PM
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Well looks like you had some clearance with 1.5" and 295's so I'd think 1" wider and 285/75 should work.
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post #92 of 102 (permalink) Old 10-12-2012, 11:22 AM
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I finally had the time to get the wheels on about a month ago. I ended up buying new lug nuts for the adapter that had the correct seat angle, then ground them down with my belt sander so they would fit flush. Everything fits good, and it looks nice! I'll try to get some pics soon.

I have a little rubbing when hitting large dips, with something in the trunk, but not bad.

'09 Pontiac G8 GXP, A6, Sunroof, MGM, #1664 of 1829
GMM RAMJET OTR CAI, Livernois E/TCM Tune, Kooks 1-7/8" LTs, catted mid-pipe, Hooker Polished SS MaxFlow mufflers - 394RWHP/386RWT
BMR Rear LCA's, stabilizer bars, end links, front LCA bushings, rear toe links and trailing arms, Pedders Street II kit, including subframe and diff bushings.
Hawk Ceramic pads, Brake Performance slotted and dimpled rotors, Russell stainless lines, Super Blue fluid.
Best 1/4 time - 12.52 @ 114.47, 1.94 60ft.
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post #93 of 102 (permalink) Old 10-13-2012, 05:51 PM
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Originally Posted by ottw View Post
305's will fit lowered but you need inner well work.
That has got to be the best looking gxp on the forum imo. The stance, the offset just do it for me I'm all about less is more.

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post #94 of 102 (permalink) Old 01-06-2013, 01:23 AM
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Ottw - anymore pics? Interested in what you did for the mini tubs!

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post #95 of 102 (permalink) Old 01-06-2013, 10:54 AM
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The last two show the stock wheel well and one with the inner liner trimmed so you can see how much room was made. Note things like the gas line is moved and the spring tower is trimmed and the seam has been removed and welded.

2009 GXP White A6 Roof Onyx/Red, 619 , Magnacharger 2300, BAP Fuel Sys, CNC Heads, Stage 2 Cam, Kooks Hdrs & Cats, Corsa Exhaust, Livernois Dyno Tune, Roto-Fab CIA, Mini Tubed R Wheel-wells, Cut & Welded Wheels 9" Fr, 10.5" R, 265/35-19" & 305/30-19" Pilot Sport PS2's, Dark Window tint, BMR: Tnl Brace, S Frame Connectors, Trailing Rods, Bushings, Toe Rods, sway bars, DBA Slotted/Drilled 5000 rotors, Sphon LCA's, Pedders subframe bushings, Pedders fr control arm pkg, Supercar Coilovers.
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post #96 of 102 (permalink) Old 01-06-2013, 04:56 PM
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Sick! Needs a drop though



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post #97 of 102 (permalink) Old 01-07-2013, 06:11 AM Thread Starter
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Sick! Needs a drop though
I would love to, but my piping for the turbos is way too low already at stock ride height. If I ever get them re-routed, I'd be able to, but no way can I lower it the way it sits now.

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post #98 of 102 (permalink) Old 01-08-2013, 12:10 AM
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Looks great!

So the rims are now 9.5" wide with 295 tires?

I have 9.5" rims with 285's and up for tires... Wondering how much lip 295's would have.

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post #99 of 102 (permalink) Old 01-09-2013, 07:43 AM Thread Starter
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Looks great!

So the rims are now 9.5" wide with 295 tires?

I have 9.5" rims with 285's and up for tires... Wondering how much lip 295's would have.
Yup.

9.5" wheels with 295 tires.

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post #100 of 102 (permalink) Old 01-09-2013, 06:45 PM
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BTW, what offset do you think they measured at after the widening? Thanks..-Ken

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