rb26 or sr20?
 

has anyone done a swap with a nissan engine? any estimates on prices for the whole procedure?

Maybe try a Nissan forum. Doubt you will see that here bro.

ITs been done. One of the DA guys was running an SR in his FC before Lindsay, a DA ace, got it. Why bother though? Ill never understand people swapping out a rotary from an RX 7.

Check out the other engine swap forum.

Edit: https://www.rx7club.com/other-engine-conversions-non-v-8-118/

thanks guys

seen a KA, wouldnt mind seeing an RB25 or RB 26. that could be pretty cool. or even a 2JZ

I understand (although don't agree with) swapping in a V8. However, I don't understand swapping in a rb26 or sr20.

SR20 is perfect lol. Swap in a s13 redtop, and after going through all that hassle, you'll be at about the same or maybe a little more hp than a jspec s5 motor.

If you do it go with a sr20det over the rb26dett. I looked in to doing a rb26 swap in my 300zx(Im building the vg30dett up for less just a stock rb26 swap would cost) and unless you have alot of time and money the rb is out. The sr20 is a workhorse, build correctly it can handle big hp, parts are all over, and cheap. also the sr wieghts less. Plus with the rb26 not only will you have to pay top dollar for the motor but you will also have to buy a rb25det rwd trans, which is become a pain. most of the trans on the rb25 being shipped over here are actually rb20 trans that are not as good and will not support the power of a rb26. and finally since it was mentioned you could do a KA24det set up, the motor and trans can be bought for less then both the sr20 and rb26 and again if built right they can be superior to a sr20.just a my 2 cents.

Why would you want to do that? Unless you already have a built motor waiting in the garage, i would reconsider spending the time and money dropping any nissan engine.

I have seen a vq35 in an fd before though.

:weedpoke:

i know tony angelo runs a sr20det in his fd, but why would u purt cylinders in? i dunno, maybe its just me

don't get me wrong a sr20 is an amazing motor but paying the money to swap it u would be better off buying a 240 with an sr20, i think if you have a rx7 u should keep a rotary engine cause thats what makes rx7's so amazing.

I do agree that if you are planning on swapping a sr20, you might be better just buying a 240 with an sr20.

However, i dont agree on what you said about the rotary engine being the main component behind what makes an rx7 so amazing. I think these cars are amazing for their styling and for the way they handle. Though the rotary is an amazing engine and its great to be different, it has many flaws and suffers from lack of torque.

Yeah forget about how RX-7's look beautiful and not to mention their great handling.

SR20 over the rb26. Rb26's are way overpriced, and the money you save you'll be able to get it to the same power easily, less weight, easier to find parts.

Unless you're balling, and know how to do some fabbing, go ahead with the rb26.

i agree there is more to rx7s then just the rotary engine and i think its still cool to do crazy swaps(props to LS1 rx7's), but 13b are light and doesn't swaping the engines screw up the weight ratio which causes worse handling??

If you were to get an rb, go with the 25. There isn't much more to the 26.

Sr's can be found cheap now a days. Aftermarket it high for them. Plus there are some parts you can pick up at your local auto store. Can't do that with an rb.

If It were me, I'd go with a ka24de and turbo charge it. Tons of torque and smooth pull.

i vote SR20. for the reasons stated above. its cheaper, a tank, a huge market, lighter, and easier to get.

i know a SR swap into a 1st gen is easy, very easy. ill be doing a swap of the sort to my SA within a couple years. depends on how broke i am while im in college.

actually, as someone who has priced this shit out, rb26 all the way. a 240 with an sr20 swap is lucky to get 200 hp to the wheels with a stock swap. a 240 with a stock rb26 is over 300 dyno'd whp, no bolt ons, nothing. add bolt ons to both motors, and you're way better off with the rb. it's not just cost, but cost vs. power, and 100 extra hp stock is a good starting point. plus, 500 hp rb26's are pretty streetable, but getting an sr20 to 500 hp takes more money than the cost of building the rb. the sr20 is overrated anyway.

your kinda going off the assumption that the motor even remotely cost the same, but they dont. so you cant realy 100% go off of cost vs power.

a 400whp SR is easy to attain with less than 6k, however a 400whp RB will still cost you 7k+, as most RB26's cost around 4k plus by them selves. SR's not so much really.

however i will agree, if your looking to go above 450whp, i would recommend a bigger plateform than a SR...

so, what's the cost of getting an sr20 AND building it to a reliable 400 hp, vs getting the rb26 and doing so? at about 400 hp, it's pretty much breaking even, and above that, the rb26 wins. plus higher redline. :icon_tup:

How about just answering one simple question first. What are you planning on doing with the car? Will It be a drag car? street car? Auto X car? Drift car? No one can tell you whats best for your build until you tell them what you'll be doing with it. Right now its all been a power/ cost issuse.This is just getting alittle stupid, I mean, if your looking for aton of hp then yes go with the RB. If its going to be a street car or daily drive then with out a doubt go with a SR, for the simple reason of if it breaks, part are everywhere. Theres pros and cons to both sides, but you need to decide what your plans are for the car before deciding on a motor. :wallbash:

this is true...motors are def better for one thing than another...so tell us what you want it for..


As for fd3s_jerry I understand what your saying with if you built BOTH motors you would undoubtly have a stronger motor with the RB26, but stock internaled SR's hold 400whp all day long with nothing but a tune and a bigger turbo. So unless hes looking at getting over 450+whp RB shouldnt even be an option for him, otherwise all it would be is a waste of money.

sorry for bringing this back but guys do you have any links or exect info what is needed to swap SR20 in FD. i'm interested in this setup. i'm considering importing RX7 from Japan and if the engine blows, i can not repair it considering my location. SR 20 is a good engine, much lighter then RB25 and better overal for RX7

Wow so many of you guys saying SR over RB. How many of you have actually built both? No what serious issues can arrise with either?? I have done quite few SR swaps and they are great motors but if you do some damage to it, good luck saving it. I have also built many RB motors 25's 26's and 30's There only flaw is there price built right it is a amazing motor equally as impressive as 2J's and certainly more easily salvageable than a SR from my experience.

-S-