I asked a buddy of mine who's big into the Nissan SR20 swaps & he said around 400lbs sounds about right.. I dont remember what the Renny weights.

Holy hell your run-on paragraph killed my eyes.

Looks interesting, however.

Keep us posted... I miss my 240 dearly.

thatz nice to hear!

I have an EJ20(WRX) motor sitting around, that I would love to throw in the 8.... just don't know any good fab'ers.

good luck with that. As a rotary fan im not totally dissapointed for the sr20det is one of nissans best engines ever created. If it were me i would have went with a RB motor (if that could fit) but the SR looks nice and snug in there.

honestly I respect this build
at least it isnt a ls1
good luck

atleast you stayed japanese lol. damn ls1' corny mumbo jumbo

I say gl and piss on whoever gives u sh*t haha they're just jealous.

as for the rb engine fitting into the rx-8. yes it will(with the moving of some items)
ive been talking to a few good fabbers about different swaps. I'd like to see some1 get creative and swap a f22 engine, another great high revving power plant.

as for the ej20... wow why? lol. replace 1 unreliable high power, power plant for another? Sounds like trouble and not worth it.

What's so unreliable with an EJ? I've never had any problems with mine.

It's projects like these that make the RX8 still tempting.

Good luck with your project and once it's done, you need to post some vids and dyno charts.

I've heard of the sr20det engine, but never really knew much about it. Anyone want to enlighten me?

It is the stock motor that comes in the Nissan Sylvia. It's a 2.0 liter, 4cyl, turbo engine. Very very very Very good platform for huge horses.

To be a little more specific. the SR20 was in the 180sx and Silvia from 91 to I think around 03 or so ending with the S15. I've helped install many and they are a great motor, strong and reliable. This will deffinatly be an awesome car when finished. The Rx8 is a much better chassis but I always miss the power and sound from my CA18det which was in the silvia/180sx before the SR. I've had thoughts of doing this myself. Depending on how yours turns out and if/when i blow another motor I'll deff consider doing this:Eyecrazy:

Pshhh... it's only a SR20DET... try swapping in a RB20DET! Here's my current project, it's almost near completion. This is the reason why I'm not on here whoring the forums lately. :)

http://i36.photobucket.com/albums/e3...1112070009.jpg

http://i36.photobucket.com/albums/e3...1112070008.jpg

http://i36.photobucket.com/albums/e3...1112070007.jpg

http://i36.photobucket.com/albums/e3...1112070006.jpg

http://i36.photobucket.com/albums/e3...1112070005.jpg

http://i36.photobucket.com/albums/e3...1112070004.jpg

Here's the hardest part; getting this huge engine in.
http://i36.photobucket.com/albums/e3...1112070003.jpg

Sorry for the different size and crappy ass pics, they're all taken by my cell phone. I'm going to drop in a 2JZ into an 8 one day. :)

it clears the electric power steering OK then?
vert interesting for me.
oldscdragger

not so much. kep in mind that i have had a company here in town ( racingconcepts.net) build an entire custom subframe to do this swap. the power steering unit has been moved forward about 4" to clear the sr's oil pan. luckily moving it this small bit didnt effect sway bar placement. as for getting the electric assist working thats one of those things that is going to have to be worked out. its as simple as putting a speed sensor on the sr somewhere or the rear end, then translating that signal to tha rack so it will work properly without the pcm. so yes the power steering will be ok after a lil work

do you guys think the 4G93 would fit in??

wow. i was waiting for someone to do this. post more pics n videos.

wow nicee keep us updated. If i had a choice to do an engine swap first in line would be a 20b, if that doesnt work then either RB20DET or the 2JZ-GTE, if those dont work out then id go with the SR20DET.

if someone had a choice im sure a 3 rotor (or 4) would be on the top of their list.

im pretty sure money was the first reason for this swap.

The RX-8 really wants a rear-sump engine. There are only two modern four-cylinders that will go in easy. The BP from the old Miata is light, small, rear-sumped and almost free. It responds well to boost.

I'm told by someone who should know that a current MX-5 subframe is a direct swap into an RX-8, which would let you build a 2.3L MZR. Still not trivial, but with the right turbo on the side, would make an RX-8 into a GT3 killa.

The photos in the swap here seem to show the engine on quite a rearward slant, though I suppose it could just be the fender slope. That's often the case when front-sump engines are put in cars that want rear-sump motors.

I'd personally like to do a Toyota 1UZ V-8. But my whole reason for buying an RX-8 is so I don't have to work on it.

Let us know what this ends up costing. I am very interested.

Also ^^^is this true can the mx-5 engine mount in there no problem?

How about an MZR 2.3 from a 6 or 3. Anyone know?

Your camera makes my eyes bleed. I wanna see the results so keep up the good work. Subscribed.

Good job!

damn se3p guy those pics are huge man.

Very interesting. Indeed that sounds like something to look into. 2.3L Miata motor sound doable.

Well if this guy pulls off the Sr20Det swap and doesn't cost an arm and a leg, I'm going to start planning a swapped motor when my rennie decides to quit.
I want to see this thing fully mounted so I can determine the space available above the motor. Although I love the SR, I'm a KA-T fan.
So depending on whether there is space above the motor would be my determining factor.

In case anyone wanted to know. Nissan KA24DE is the stock motor on US spec 240SX.
Dirt cheap motor since everyone swaps, lots of aftermarket parts available, durable iron block, more torque than an equivalent SR, suited with a t3/t04e would yield 350+ HP easily.
Th downside is no more 6-speed, not sure if the nissan ecu can control the creature comforts this car offers, ex. heated seats, etc.. :(