02-25-2014, 02:49 PM | #15 | |
Drives: ZL1 Convertible Join Date: Aug 2012
Location: Chicago, IL
Posts: 484
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Quote:
Sometimes you engineer a part to be 'weak', to bend, to have 'give' for a number of reasons. This can include savings other parts from death and destruction . . . in essence, the design engineer is choosing which part will fail. I find it plausible that the design engineer desired that level of 'give' in the part, as he/she is making design trade-offs . . . making one part weaker in order to 'save' the far more expensive part(s). Agreed that this may be good for a track car, but not on my list for my DD. |
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02-25-2014, 03:27 PM | #16 | |
Speed Freak
Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013
Location: Ardmore, OK
Posts: 2,637
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Quote:
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2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq
2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date. |
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02-25-2014, 10:50 PM | #17 | |
Drives: 2013 ZL1 Join Date: Oct 2011
Location: tangent or
Posts: 2,984
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Quote:
I tihnk the chassis sturctuer is designed to absorb inpact. I work in mechanical design I do not see these bushings as a safty item at all. there are still tons of points of isolation on this suspension design. So even when you go solid every point of the suspension still has a bushing that connects to the subframe. which is why this car is so crappy with wheel hop there is flex everywhere. So if you gong to look at it like an engineer look at the whole system like an engineer. whatching the pfadt video's is very enlighting the flex is outragous in the stock condition. the 90 durometer BMR's are a great trade off for people who think the solid is too far though and they are cheaper. ohh and pfadt is out of business so if you want there's better find some on the ground quick.
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shopping for 2017+1le or zl1
2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned |
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02-26-2014, 12:59 AM | #18 |
Negative Camber Junkie
Drives: 2010 1SS LS3/6MN ABM 1 of 23 Join Date: May 2009
Location: ChiTown, IL
Posts: 1,824
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First, yes, sadly Pfadt and Pedders are out of business.
Second, BMR's have a 70 durometer reading. Prothane=88 Whiteline(who used to make Pedders)=95 and ,IMHO,is your best bet especially if you plan to do ANY autoX or HPDE events. Opinion If you plan on staying on the street, Drag Racing and Under 600 RWHP then by all mean go BMR. Personally, I would choose the Prothane after that RWHP limit or if you what a more solid bushing. /End Opinion There is another thing folks need to think about when you choose your bushings and that is the metal sleeve the Camaro actually sits in. The piece that comes down from the Camaro is actually conical in shape and x inches long. In the stock bushing the sleeve it sits in is conical also to "marry" them together and it rests on a shelf inside that sleeve. The Prothane and Whiteline sleeves are similar in design. The BMR is a straight through cylinder sleeve. |\\//|=Whiteline and Prothane ||\/||=BMR I have been in cars that had the Pfadt solid style bushing and damn were they loud. I have a car with bushings that are 95 durometer Poly and they are not loud and do a damn fine job. I only mean to try and give you folks the facts as they stand today. My opinions just kinda leaked their way in there. T.
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"Horsepower is something that looks great in a Magazine article, but suspension is what actually gets you around the track fast.." Jack Olsen
The drag strip is like sniffing glue, it's cheap, it's a decent buzz, it doesn't last long and they are all the same. Road racing is like China White Heroin, the buzz is stronger, the high lasts for hours, it's extremely addictive and they are all different. I can't wait for my next Track fix. DA HAWKS OWN DA CUP!!!!! |
02-26-2014, 01:05 AM | #19 |
Drives: 2013 Camaro ZL1 Join Date: Dec 2012
Location: Dallas, Texas
Posts: 2,155
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My opinion is it is not that loud. It's my car and I'm the only one usually in it so no problems here. I have to really pay attention and listen for the "noise". The moment you go around a corner you will be smiling.
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02-26-2014, 01:19 AM | #20 |
Drives: 2013 Camaro 1LE Join Date: Nov 2013
Location: NE/IA
Posts: 222
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I still question the use of a solid material in the cradle mounts.
Coming from the the IRS in the Cobras. I used Ploy on the cradle mounts, Aluminum in the differential mounts, and derlin on the control arms. It was dead quiet, solid, and would not wheel hop. |
02-26-2014, 08:31 AM | #21 | |
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Are the ones on ADM website for all Camaros or just the SS model ??
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2013 Summit White ZL1
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02-26-2014, 08:49 AM | #22 |
Selling
Is anyone or know anyone selling the Pfadt bushings?
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2013 Summit White ZL1
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02-26-2014, 09:25 AM | #23 |
Drives: ZL1 Convertible Join Date: Aug 2012
Location: Chicago, IL
Posts: 484
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02-26-2014, 10:01 AM | #24 |
Drives: 2013 ZL1 M6 SIM AGM mono stripe Join Date: Jul 2012
Location: Boston
Posts: 453
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Still possible to get Pedders bushings from somewhere? Didn't realize they'd gone out of business.. damn
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02-26-2014, 10:23 AM | #25 | |
Drives: 2013 ZL1 Join Date: Oct 2011
Location: tangent or
Posts: 2,984
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Quote:
it's interensting to hear the perspectives some peopel act like sound is horrible and some act like it is no big deal.
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shopping for 2017+1le or zl1
2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned |
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02-26-2014, 10:25 AM | #26 |
Drives: Race Car Join Date: Sep 2009
Location: Seffner, FL
Posts: 6,226
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BMR has the 70 durometer "Pro" Bushings or we also have the Delrin "Race" Bushings which is more comparable to the solid bushings in performance. Some more good news:
http://www.camaro5.com/forums/showthread.php?t=344278 |
02-26-2014, 10:34 AM | #27 |
My exhaust is so loud anyways I probably wouldn't even notice the noise coming from the solid bushings.
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2013 Summit White ZL1
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02-26-2014, 11:06 AM | #28 |
Drives: 2020 ZL1 1LE Join Date: Sep 2012
Location: Austin, Texas
Posts: 1,346
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Keep in mind that video uses a 2010 SS. The cradle bushings for all Camaros were improved across the line in late '11 to get rid of the voids in the 2010 version. The newer part is solid rubber material. It would really be interesting to see a video with a 2012 or up model. Also since the Z28 is so track dedicated, I wonder what bushings they use on it?
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