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12-14-2015 | #1 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,700
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4 Corner Winter Project
Thought I'd start a new thread since my other one has expanded beyond just new rubber. We're moving onto reducing rotational mass w lighter rotors, plus upgrading rear trailing arm mounts and tie rod brackets.
Had discussion w Pete on possibly massaging the cylinder heads some more, but our concensus was that motor feels pretty strong right now. Bang for the buck not as strong as maybe looking in other areas. With updating my Invos to Mich SS, I started looking into the whole rotational mass thing. Seems that this is an area that would yield better results in terms of ROI. The Michelins will add a total of 10lbs over current tires. Also, the Z06 brakes are large w front rotors weighing in at 28lbs. ea./rears 20lbs. ea. Been researching the alternative rotors and have found two that look up to the task. The preferred rotors by the Z06 crowd is the Coleman 2pc. rotors built by Performance AFX. These rotors weigh 17F/15R. They basically reduce rotating mass by 30lbs overall w 20lbs coming off the front end. Rule of thumb is 1lb ~1hp. On the dyno that should mean about an 8-10hp pickup since the front wheels aren't going anywhere. However, the mitigating factor is that the new rear tires will be ADDING a total of 6lbs. The rear weight loss will net out at 4lbs. The net weight loss on the front after new tires will be 16lbs for an overall net weight reduction of 20lbs. Pickup of 20hp to the wheels would be huge. Other benefits are quicker steering and shorter braking distances. Rear Rotors(pic) are made to accommodate the Z06 eBrake. Side view is of front rotor.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 03-08-2024 at 02:10 PM. |
12-15-2015 | #2 |
Join Date: Jan 2015
Location: Marietta, GA USA
Posts: 1,160
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Re: 4 Corner Winter Project
Thanks. I look forward to following this thread.
Last edited by RussMcB; 12-19-2015 at 09:48 AM. |
12-18-2015 | #3 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,700
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Re: 4 Corner Winter Project
Holy Smoke! Just got the rotors. Woah! Pics to come. Fronts at 16lbs, rears 14.5.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
12-20-2015 | #4 |
Join Date: Jan 2010
Location: Freedom Pa
Posts: 275
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Re: 4 Corner Winter Project
Hi.....question, do you have C6Z06 Brakes all around?
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12-20-2015 | #5 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,700
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Re: 4 Corner Winter Project
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
12-21-2015 | #6 | ||
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: 4 Corner Winter Project
Quote:
The Winter Project Quote:
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Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 12-21-2015 at 10:59 AM. |
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12-21-2015 | #7 |
Join Date: Jan 2010
Location: Freedom Pa
Posts: 275
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Re: 4 Corner Winter Project
So.....a loss of 1lb makes the equivalent of 1hp gained? Or is this just in rotational weight? Sorry...........I was never the sharpest tool in the shed! Thanks.
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12-21-2015 | #8 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,700
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Re: 4 Corner Winter Project
Quote:
I have searched other forums, other brands and there are several w threads on this subject. The results of the tests appear to indicate that level of return. As I posted elsewhere, other benefits include less sluggish steering and braking. The Z06 rotors are massive. Dropping 22+lbs on the front end and 12 on the back gotta help. We'll see how much. http://highboostforum.com/forum/show...934#post167934
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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12-21-2015 | #9 |
Join Date: Jan 2010
Location: Freedom Pa
Posts: 275
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Re: 4 Corner Winter Project
Great stuff! Thanks for educating me. I know a lot of us have lightweight flywheels, but I don't think it's quite as "free lunch" as something like rotors, wheels or a driveshaft would be. Is there any other areas that would be "bang for a buck" improvements?
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12-21-2015 | #10 | |
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,425
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Re: 4 Corner Winter Project
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