blnewt

iTrader: (13)

Considering what you've invested thus far another $800 for the Nismo kit isn't too bad IMO (assuming you DIY the install or have a friend help w/ that). I know you're pretty rigid on your budget for mods and the time frames that those entail but maybe you can switch a mod that you had planned for the Nismo. I know handling is a big priority so this wouldn't just be a mod w/ a singular purpose.

Seriously, if you can get some compression on one side of about 3/4" just to see if the tuck would be enough to make you satisfied then at least you'd know what to expect, and if there's still some poke then you can reevaluate. I suspect you'll be pleasantly surprised. There is also the Tanabe NF210 option that (if you DIY) would be pretty cost effective and not a drastic drop. Here's some pics on their site of the OEM vs the springs FWIW
Tanabe USA R&D Blog | All posts tagged 'infiniti g37 sedan springs'

RexHavoc

iTrader: (7)

If you can wait until the meet I could be the fat friend?

IMO Brad makes a very good point. I would consider a suspension change prior to going squared. Naturally, you may still decide you want to square depending on the final results but if there is a way to try and confirm the compression "poke removal" you may be able to get that two-fer by installing the Nismo kit.

rm2342

It will work out. I know that sinking feeling when you research and plan and it doesn't quite work out they way you hoped.

^These guys make good suggestions with the spring compression test to see if it helps the poke.

Hang in there, It looks great as is and likely only because you are focusing on that one aspect now.

twin_snails

iTrader: (2)

LOL on "if you've got a couple fat friends"

twin_snails

iTrader: (2)

What's your front offset again Rochester? I hear you on the poke. It drove me crazy too. I got mine from Element wheels at the time and they allowed me to ship them back for the 5mm backplate decking.

Yeah you're probably out of luck on them taking the rear rims back unfortunately, but never hurts to try. Maybe they can machine some off the back??

Love the wheels, and the McGuard lugs. Definitely looks "in motion" with the wheel design. How are you liking the handling upgrade? The 245/275 setup changes our cars dramatically.

I would characterize it as "more flat". It transmits more of the road irregularities and some may not like that but I didn't mind it. It's like you have 4 giant planes for contact patches with the road and endless amounts of grip.

twin_snails

iTrader: (2)

FWIW, I'm not lowered as well and Element Wheels and Discount Tire told me that when the car was on the ground under it's own weight, that the compression of the suspension would add in some negative camber and correct the problem. I test-fit them first with no tires. I think it was because they didn't want to deal with having to take the wheels back. Oh no, no Senior. I wasn't buying it and the poke continued to be a problem.

Others have mentioned lowering and I admittedly don't know what effect that would have, but I know R wasn't planning on lowering.

rm2342

^ The correct offset is crucial. But depending on the camber and lowering the poke can likely be minimized.

If the plans are to remain without a drop, I would look into contacting the vendor. Any good businessman helps after the sale is made, not just before. If they work with Rochester, it builds their credibility and reputation for future business.

Was the vendor the one who provided the specs on the wheels? Or were those independently decided? Was there an understanding that a more flush stance was required? This would go a long way in potentially negotiating.

blnewt

iTrader: (13)

If the backplate decking that T_Snails mentioned is possible that would be the easiest solution. I know John wasn't wanting to lower his G soon, and if he did it would just be minimal, so that would be worth looking into for sure.

I remember when I got my wheels I went around & round w/ the guys at GOTO racing to be quadruple sure we were on the same page. I imagine Rochester did the same, there's that gray area that comes when you add +1 setups on non lowered vehicles since it seems most are lowered.

Hopefully the easiest & most cost-effective solution has been found. I know John pretty well and if something isn't quite as planned it will really fester to the point where he won't enjoy the car. His attention to all the details is remarkable so this is a biggie.

rm2342

^ Yeah, I'm afraid of the same things. I want a semi concave rim, but will the offset be right, will the tires be properly matched to the rim size in relation to the drop etc, etc.. It's tough when you want it just right.

What is the back plate decking? Just shaving off the rear back spacing essentially?

Lego_Maniac

iTrader: (3)

Just curious, but have you considered koni shocks + sedan specific springs?

Everything I've read says that the konis raise the car a bit, so coupled with sedan springs it should be a slight drop. I would just think that you're paying a premium for the nismo name on what is otherwise an oem shock. Adjustability would allow flexibility for a suspension that isn't 100% designed for the G sedan. The cost difference isnt that much either, and konis have a lifetime warranty.

I wonder what the 370 nismo guys upgrade too?

Rochester

iTrader: (9)

I'm no mechanical engineer, but the crazy warning lights are flashing over my head at the thought of shaving the back plate of those rear wheels. Cast aluminum VOSSENS don't exactly have a reputation for being strong wheels, AFAIK.

As stated, the offset choice was dictated by VOSSEN, and recommended by Diego here on the forum, because they only build these with two offset options.

I've never ever before considered dropping the car, and truth be told I'm pretty aggressively critical of that mod (LOL, did I say that right?). But now that I've installed 19" rims, particularly these wide concave rears, it's dragged me kicking and screaming into a whole new world of considerations.

So somebody please talk to me like I'm a noob, and explain how lowering the car reduces the poke. I don't understand the physics, and the ramifications of that configuration. Seems to me the tires would not be happy if the camber (?) weren't flat.

Rochester

iTrader: (9)

Also, thanks for your help, guys. I had the talk with the wife last night, how for the last three months I was so psyched for these wheels, only to put them on the car and get this uncomfortable WTF feeling. Particularly in the context of why I bought them and the events leading to this decision.

Lego_Maniac

iTrader: (3)

I dont think dropping the car is going to do anything abouy the poke.

Sorry this didn't work out as you planned it. Its so hard to match aftermarket wheels to a car. Probably why in 20+ years of modding cars I've never changed wheels, despite the performance increase the mod offers.

Rochester

iTrader: (9)

I took off the front rim from the passenger side, and moved it to the back. Note the original duckfeet temporarily on the car:



It still pokes. At first glance, it looks identical to the concave rim poke:



Upon reflection, I'd say there were about 2mm or 3mm difference, but that could just be me misinterpreting things. Here's a pic where the plane of the rim's surface is just about to fade to 180* from the camera angle. Both the 8.5" and the 10" rims introduce approximately 1/2" poke, give or take a few millimeters.

Rochester

iTrader: (9)

I know it looks like nothing, but in my head I feel like Fred Flintstone. Can't seem to shake that. What this effort of swapping front to rear has taught me is that with a square setup any mitigation to the problem is really, really minor. And it would come with a huge compromise in going square... smaller rear footprint, forgoing the nice concave rears, not to mention whatever huge expense it would be to buy 2 more wheels & tires to match the square set-up. On the up-side, it would allow me to rotate. Whoop-dee-doo. That's something that never mattered to me. I don't put many miles on the car.

Ugh.

And my TPMS is flashing now, but I seem to have misplaced my nice pressure gauge. God Dammit.

There it is. Now I have to go swap the wheels back, and take my kid to a birthday party.

That's probably no fun, being chauffeured around by Grumpy Dad in his Clown Car.