sr20 swap?

na man if your not gona put a v 8 in it or a mazda engine put a 7mgt yota engine in it man those things with a metal head gasket can run 10-15pounds of boost all day long everyday on the street. the bottomend on those engines is like the 22r yota engine fin bulletproof

It would be one hella of a swap. I say Get the engine in and find out what needs to be done.

well im about to get a 1jz toyota supra engine in my truck all for 3000

Dear god plz don't pull one of those Honda rice boy swaps! (LOL)

Too many choices in the Mazda house to do that!

High comp, dual weber your stock FE

Swap in the Probe/MX-6 F2 turbo

Swap in the FE3 from a 99-02 Kia Sportage

Swap in the J series V6 from a MVP (if you have the auto trans already it makes it easier because I don't think any MPVs came with sticks)

Swap in the JFT V6 turbo J-spec verion of the above motor.


Swap in any turbo RX-7 motor/tranny.

Six options right there!

newbie on here rails from australia is running one i thinkmaybe give him a pm or as laynrail says jump onto downundertruckin.com

Hey guys new here, saw this after a search. I swapped a SR20DET redtop into my 89. Pics are here.
I would be glad to answer any questions, And ya its fast as hell...


Brodie

nice swap! dont hammer the little sr20 too hard though, they eat rod bearings like they havent seen food for a month.

for lsd, just get the 8" 10 bolt mazda diff from the b2600 and put the rx7 core in it for some good clutch pack action. they are effectively a 2 way design and drive wonderfully. shim it a bit if you want it tighter. mines close to locked

sucks to see the window broken like that

keep up the good work.

hey bro, nice swap, I bet it'll burn the tires off!
quick question, I saw where you have installed
a set of eibach coilovers in the front, what
model are they for, or do you have the part
# for them?

thx nyt!

I used a set from a 240sx. I had to modify them to fit, and bent a tubular support. And in the end I hated them so much I took them out. I was getting really wierd spring reactions from them. I think the rate were all messed up. Plus I was bottoming out. I think I would either need some with a longer stroke or just longer in general. I am back to the torsion and looking for a way to solve body roll. any help would be greatly appreciated. And thanks for the diff idea. I am really interested. Is there any more info on this?? I should go and hit up the wreckers for a b2600. And where might one pick up a lsd for an rx7?
I would like something fully clutched. is the diff plate bolting to the driveshaft the same. because I had a custom one made... Are the dimensions of the diffs the same? Axle width and diff length and all?

the spring rate may have not been enough for the truck, that may have been the reason you were bottoming out, either that or like you said, the stroke/length was too short. I have been trying to find a suitable set for the front, my problem is finding one that will go in the stock location with a small enough spring diameter to fit thru the opening in the upper control arm.....I may have to do something like you said & cut the upper mount off, and install a loop, then clearance the upper arm for the springs diameter....well see...

as far as a solution for the body, if you dont' have one, get a bell tech sway bar, it is larger than the oem one, and should stiffen up the front enough and get rid of some of the body roll, in your case it may be hard to get rid of all of it being as yours is an extended cab & the extra weight will be an issue....

on the diff or axle, since your truck is a 2200, the carrier has the same bolt pattern as the 81-85 rx-7 gsl/gsl-se, the difference is the 22k's ring gear is a 7.5" and the rx's is a 7" also , the pinion adapter for the driveshaft has the same spline count, but the rx's bolt pattern is smaller, all I did was swap the one off my old axle to the rx's, worked like a champ. I know mazdatrix offers thicker clutch disc for when rebuilding the lsd unit, also kaaz offers a replacement lsd unit that it a lot stouter than the mazda unit.
the only draw back of using this axle is the housing shafts are 2 1/4" whereas the trucks are 3", so you'll have to make or source the smaller
u-bolts and if you plan on hauling anything in the truck or towing a heavy load, the housing probably won't stand up to the weight....to solve this you could take the lsd unit out of the rx's axle, use the rx's axle shafts, and cut off & reweld the ends of the axle to keep the disc brake caliper mounts...now if the weight won't be an issue, the rx's axle is probably 50 lbs lighter than the trucks....

there is a lot of info on these pages, hope that will help ya out.