06-06-2013, 03:54 AM | #1 |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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my 18" street/drag setup
Forgestar F14's in Textured Gunmetal finish
18x9.5 front 18x11 rear Wheels were ordered from Tony at Deviate Motoring a well known vendor here (Nine Ball). Tony knows his stuff, the wheels fit great. Tires 275/45 front with Bridgestone Potenza re050a from Sears and 325/40 M+H Racemaster drag radials from Summit racing. This combo is within .1" of stock tire height front and rear. Forgestars are very light for the price, complete set tires and wheels are 29lbs lighter than stock ZL1 five spokes and GY's. Main reason was consistency and traction at the track, Car is M6. However,the rears hook so much better on the street, 1st gear is useable now and second isn't a crapshoot. With wide fronts I can go to a regular street tire in the rear and run them all summer if desired. Already had an awesome ride for a performance car, it now feels like a 200mph Caddy. Textured gunmetal and Ashen Grey is all business and hides brake dust well too! Last edited by tsnow; 06-13-2013 at 03:40 PM. |
06-06-2013, 03:58 AM | #2 |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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more
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06-06-2013, 04:05 AM | #3 |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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want to thank members SUX2BU and SGOS252382 for their many informative posts in the wheels and tires general section, learned a lot!
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06-06-2013, 05:08 AM | #4 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,812
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looks good...get to the track and try them out
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
06-06-2013, 05:25 PM | #5 |
Drives: 2011 LS M6 SW Join Date: Jun 2011
Location: Queens, NY
Posts: 88
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looks like a very tight fit. very nice. any problem with the sway bar in the rear at full compression or droop? also how much space is there between front caliper and inner barrel?
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06-06-2013, 09:42 PM | #6 |
Drives: 67RS Camaro ,Black 2013 ZL1 Join Date: Jun 2010
Location: Alberta
Posts: 1,408
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I have the same 18" set up from 9ball. Perfect fit after you tie the ebrake cable back. MT drag radials give these cars a fighting chance with traction. I wanted M&H but thought they might not handle well on the street.
How do the M&H handle on the street? |
06-07-2013, 07:35 AM | #7 |
White Hot
Drives: 2013 ZL1 Coupe - White - Auto- Nav Join Date: May 2013
Location: Volunteer State
Posts: 13
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"With wide fronts I can go to a regular street tire in the rear and run them all summer if desired".
What would you use on the rear for street purposes (just curious)? |
06-07-2013, 06:35 PM | #8 |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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Thanks, guys.
Dyno time scheduled early July, then the track. Stephen, speaking of track time, when is your next shot into the 10's? I have not run through full compression/droop in the shop. Bolted them up, clearances looked good with and without tires installed on wheels. Has been driven hard with 3 people in the car, no issues except the ebrake cable. LCA and swaybar are fine. Front calipers are tight, bout 1/4" to barrel. Interesting that the rear clearance is the same as the front. Has about 3/8" clearance with the cable, when driving it must move around as bolth sides have a slight rub . I will be tying the cable back. Trackman, the M&H's handle great. Roundabouts, on-off ramps etc.. I don't even notice they are a drag radial. Under hard accel (T/C off) they squirm around a bit, especially if the surface has any rutting/not perfectly flat. Just takes a little getting use to. Better than counter steering everywhere with the 20"s. hmm, or is it? . No comparison to my older muscle cars with 15" drag radials or slicks. Feel safe running these everyday. 30psi is what they have in em now. How about the M/T's, they were my second choice? Now that I have rubbed on the ebrake cable, how did you tie yours back? Tire choices are limited, Nitto seems to have the most NT05R, 555R, 05, 555, 01 and 555r2. Types to fit an 18x11" wheels. Last edited by tsnow; 06-07-2013 at 06:47 PM. |
06-07-2013, 06:46 PM | #9 |
Treasure Coast Camaro 5
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M/T 305/45 will work. On a 18x11.
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06-10-2013, 07:13 PM | #10 | |
Drives: 67RS Camaro ,Black 2013 ZL1 Join Date: Jun 2010
Location: Alberta
Posts: 1,408
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Quote:
Disconnect the ebrake clip support that is about a foot in from the caliper and use a a couple tie wraps to secure it back in the new position. |
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06-10-2013, 08:40 PM | #11 |
MPS
Drives: 2010 Camaro SS/RS Join Date: Jan 2009
Location: Alice Texas
Posts: 49
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Very nice set up bro!
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06-13-2013, 03:34 PM | #12 | |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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Quote:
That is good to hear, sounds like either tire is a good choice. Are the 305's pulled out at all on an 11" wheel? Why I went with the 325's. I would like to run the 18's more as well, as they ride and hook much better. Only issue is tire wear. They def show it when you are out playing around often! I figured it was that easy, as it is only a slight rub. thanks |
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06-14-2013, 12:37 PM | #13 |
Drives: 2013 ZL1 Join Date: Nov 2012
Location: Tampa, FL
Posts: 30
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What are the rest of the specs on the wheel? (Backspacing and offset). The combo looks great on your car!
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06-15-2013, 02:56 AM | #14 |
Drives: 12' ZL1, AGM 6M Join Date: Jun 2009
Location: 49th state
Posts: 249
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thanks.
I did a fair amount of research because at the time these were ordered it wasn't 100% they would fit over the ZL1's front rotors. I found someone on a Pontiac forum that put these wheels on his G8 with CTS-V frt. rotors, so I knew the wheels would work. However, most of my offset info came from searching posts by members SUX2BU and SGOS252382 in the wheel and tire section. Nineball fine tuned my #'s as he has done many 5th Gen aftermarket wheel sets. Front is 18x9.5 27mm offset, which works out to 6.3" backspacing Rear is 18x11 47mm offset, 7.9" backspacing. Overall tire width affects things, the M&H's are a narrow 325. A 43-45mm rear probably would have been enough to keep from the slight rub on e-brake cables. Stock 20's are 10" front at 23mm, and 11" rear at 43mm. |
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