Anyone using inboard rear brakes?

[WestTexasS2K]

Yeah Chuck and others are right about the R160 but it handles the s2000 power well and has a wide selection of gears and lsd is easy to find. You get all this in a 50lb package that can be found on cars from 89-2003 and can pick them up for 75.00 or less in most cases.

 

 

 

If you up the power to the 300hprange the R180 will handle it. But the STI diffs are going for 1K and has a 3.90 and thats it. Aftermarket ratios are hard to find and if you do come across them will add another 500.00 plus set up to the tab.Also available in 240-260z cars but they do not have the lsd.

 

 

 

After that the R200 is the next step those are found in 280z from 76-89 but lsd are hard to find and Quaife is the only aftermarket that I know of that has an lsd they run 1500.00+ . The 240sx has alot of r200 lsd with a 4.11 ratio that are cheap and readily available but they are of the short nose variety.

 

 

 

The next big daddy R230 from the 90 and up 300zx will handle about 700hp and are of the short nose variety. Has a few gear ratios to choose from and lsd are plenitful. These are also found in the Infinity Q45 as well. These units weight about 85lbs.

 

 

 

Learned most of this stuff from putting V8 in Datsun Z cars for several years. There is alot of info on www.hybridz.org . You can literally spend days going thru all the post.

 

 

 

The Supra IRS and Mazda RX7 Turbo cars also have good IRS units they will handle high power loads.

 

 

 

Another diff. that get over looked but is a good choice is the corvette C4 units. It is all aluminum. it has a large mustache bar intergral to the unit with a rear toe adjustment and 4 drag links that are refered to as dog bones due to their shape. They will handle large horsepower and are reasonable priced fairly light weight and has large disc brakes all included. Gear ratios are bad 2.73-3.27 mostly but are available in just about anything you like. If I were to build the Locust I might give this unit a hard look. It would be easy to set up can be narrowed by 12-14 inches to fit you chassis. It is very easy to convert to coil over shocks too. That my 2 cents.WestTexasS2K2007-01-20 08:32:37

[GailE]

The C4 setup is a close match to my Rotus chassis, so if my rear fails, i'll be giving that some serious consideration.

[locostv8]

http://wrangler.rutgers.edu/gallery/d/39735-2/deman+irs+3.jpg

 

This is a pic of a Deman 7 using a MN12 8.8. The 8.8 is stronger than the D44 used in the Vette and cheaper. The same diff if used in Terminator Cobras and with stronger half shafts has lived over 300 passes in a slick equipped 4,000 lb 900+ hp drag car. They are very easy of narrow or widen.locostv82007-01-20 23:36:00