IRS in the B2200s

So what exactly would you gain by going to the IRS on a B2200

Lets say the 2nd gen RX7 for the IRS


I have been searching for an answer,but can't seem to find one


Hmmm....





Dev

some would argue better handling, but mine the way it is handles extremely well.

It might handle well for a truck but compair it to a car with independent suspension. There is really nothing to compair. For example, a toyota x runner is probably the best handeling truck on the road today. Compair that to a rx7 and you would see how much the little stuff comes into play like perfect weight front to back as well as side to side. Stiff sways and shocks only gets you so far. That is why I balance and weigh my car on 4 wheel scales.

i bought my rx7 rear a few months ago and i am getting ready to install it as soon as i begin the backhalf. you don't have to worry about a 4 link or anything, nor do you have to worry about the pinion angle ever being out of wack. once you set the pinion angle it will never change because the rear is actually hard mounted to the frame. if you can get the rearend fairly cheap your whole setup will be a lot cheaper in the long run because you don't have to worry about (4 link, c notches, and all the little extras along that route). also, a major advantage over the stock axle is it can handle more power. i am going with a 4.3 v6 and a 5 spd and 20's. my rearend is also lsd. if you can get a lsd rear, get it. there are a ton of 2nd gen rx7 rears being ran with v8's. there are also 2 types of lug patterns, make sure you get the 5 lug. the bolt pattern is 5x4.5 or you get the 4 lug, you don't want the 4 lug. hope this helps bro. here is some more info i found.


found this through a series of talking to peeps. a guy on street source told me to go to fordcouriercollector.com cause he is from australia and i was talking to him about dropping a v8 in my 83 and doing the rhd conversion. well i went to the site and saw that he posted this up about the rearend that i want to drop into my 89...

...The stock RX-7 rear axles are amazingly durable (internally, the parts are similar in size and even stronger than the Chevy 10 bolt that comes in the newer Z-2. While we offer bolt-in narrowed rear housings and axles for the 1st gen. cars, unless you are REALLY going to abuse it, we suggest you try the stock rear first. There are many V-8 powered 2nd gen RX-7s on slicks running mid-10 sec 1/4 mi times on the stock rear, a feat that requires 475-500hp. The clutch type limited slip up thru '88 is very strong 4 pinion style much like the diff design used in the Dana 60. Although it may be hard to believe, the rotary powered RX-7 drag racers are probably harder on the rear than the V-8 powered guys. The reasoning behind this is that most all rotary powered RX-7 drag racers use a manual transmission, a metallic clutch, and a heavy flywheel spinning at 9-10K rpm to assist the low torque rotary in launching the car. An incredible amount of stored energy is released into the rotary drivetrain to launch the car, enough to launch the car well even if the rotary engine died on the line. In the case of the V-8, plenty of torque is on tap to allow low rpm starts, also making it much easier to modulate the power to make the most of available traction.

...Here is a list of the rear axle gear ratios that came stock in the RX-7...

'79-'83 ALL.......................................3.909
'84-'85 ALL (except GSL-SE)..............3.933
'84 GSL-SE.......................................4.083
'85 GSL-SE.......................................4.077
'86-'91 ALL (except automatic)...........4.100
'86-'91 automatic (except convertible)3.909
'88-'91 convertible............................4.100
'87-'91 Turbo II / GTU.......................4.100
'89-'90 GTUs (T-II rear).....................4.300
'93-'95 w/ manual trans....................4.100
'93-'95 w/ automatic trans.................3.900

...The 1st gen RX-7s all used a 7" dia. ring gear.

Cars with rear wheel disc brakes, such as the GSL-SE, all came with a limited slip differential.
The '84-'85 cars used larger diameter axles, and have a larger spline in the differential side gears.
The axle side gears can be swapped, allowing the different axle diameters to be mixed and matched.
Higher gear ratios for the 1st gen cars are available, a 3.683 ratio (came in the '79-'82 RWD 626, and is available new), and a 3.308 ratio (came in the '82-'84 diesel powered Ford Courier and Mazda B-2000 pickups, not available new anymore).
The '79-'85 12A cars all had a 4 on 110mm wheel lug pattern (hard to get wheels for).
The '84-'85 13B powered GSL-SE cars had a 4 on 4-1/2" wheel lug pattern (same as 4 lug Ford Mustangs, etc).

This is from www grannysspeedshop com

well i dont know about the whole x runner thing. toyota touted it as having better handling than a z350. so, i tik it will handle better than a RX.

roadracer wrote:

well i dont know about the whole x runner thing. toyota touted it as having better handling than a z350. so, i tik it will handle better than a RX.

Is that in the English language

I can't understand half of that

And the 350Z is a FAT PIG that weighs more than an RX-7 so I don't think that it would EVER handle better


Dev

350z are not know for having amazing handleing capabilities.