MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: custardavenger on May 15, 2009, 08:24

Title: A thought on making the 2 lighter
Post by: custardavenger on May 15, 2009, 08:24
As some of you may know I've just reconditioned a set of brake calipers, an I couldn't help noticing when I was carrying them to the car how heavy they are. I have just weighed them and they come to 3.5Kg front and 4.5Kg rear.

While I was gathering information into reconditioning Toyota brakes I came across an article online (can't find it now) about Prius brakes being Aluminium (definately the fronts, not sure on the rear) and it got me thinking. Toyota do have a great reputation for parts being swappable. Would Prius calipers fit on an MR2?
If so that would be a great way to reduce unsprung weight, and as long as pads were available (doubt theres performance pads for the Prius) then this might be a very worthwhile swap. Would be great for the racing boys as well if they are allowed to do it?

So anyone got a Prius?

There is one in my works car cool but I think they'll frown on me taking the wheel off for no reason.
Title: Re: A thought on making the 2 lighter
Post by: muffdan on May 15, 2009, 12:22
a frown never hurt anyone  s:) :) s:)
Title: Re: A thought on making the 2 lighter
Post by: Anonymous on May 16, 2009, 23:15
I have often wondered where the major weight savings could be made. Having had the seats out recently, I am sure there is plenty to be saved there. They are amazingly heavy.

Then you could get drilled rotors (drilled in the disks) & drill them with 4 more through holes in the hub section, 45deg out of position from the wheel studs.

It would be interesting to strip down a damaged car to its bits and evaluate how much weight it could loose.
Title: Re: A thought on making the 2 lighter
Post by: spit on May 17, 2009, 00:57
Quote from: "sjspitz"It would be interesting to strip down a damaged car to its bits and evaluate how much weight it could loose.

 s:wink: :wink: s:wink:  - Clicky (http://www.kumosport.com/component_weight_zzw30.asp)
Title: Re: A thought on making the 2 lighter
Post by: markiii on May 17, 2009, 09:40
or even closer to home


 l viewtopic.php?f=46&t=12479 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=46&t=12479) l

 :-) :-) :-)
Title: Re: A thought on making the 2 lighter
Post by: darkday on May 17, 2009, 19:30
 m http://spyderchat.com/forums/index.php? ... &hl=weight (http://spyderchat.com/forums/index.php?showtopic=57005&hl=weight) m

 m http://spreadsheets.google.com/ccc?key= ... YqaA&hl=en (http://spreadsheets.google.com/ccc?key=pHUSSTV4A5CFVOW4zfTYqaA&hl=en) m

If you've got additions please let me know.