any info, or old bookmark threads explaining how hard this is and what is needed to do..etc.



If it's *that* hard, I'll just pop a 302 in it.

its pretty easy, its just expensive and its a big project



mike

Expensive? **** it. 302 it is.

lol, well enjoy your new low center of gravity

lol if your going to ruin an RX7 you should atleast do it with an unusual hunk of american ****. throw a northstar caddy motor or a flat head inthere or some thing lmao

howsabout checking out the 20B section of the forum

Expensive? **** it. 302 it is. [/quote]

either way custom fab here we come lol.



kevin.

Aluminum blocks are very light, what? You thought I'd use a junkyard 5.0..well I might :X. I hate that excuse to be honest. To me it depends on the cars potential before you swap engines out. To get the power I want, that 13B is going to require a lot of work, seeing as I know nothing about them, I don't really want to try doing that at this point. Later, of course, the engine pulled out will be a plaything for awhile as I learn the anatomy of the engine. Im not one of those people who just use the frame of mazdas light cars for a V8, but this is a simple and cheap project. So, would you reccomend someone with a limited budget and no experince to push out 350+hp/400tq out of a N/A 13B? And I know how hard that Turbo swap is, and there is a beautful 88 Turbo II im looking at, I don't have the money right now, and they arent going to sell it yet..I have first dibs on it, and my bank says I can get a loan whenever I want..So, I think I'll screw around with a 13B, then pop a V8 in it. Just be glad im somewhat staying within the company, you know, I could be using a 350 TPI :P



And..



I wouldint call the 302 a hunk of ****, it's a very versitile engine that has an aftermarket that cannot be rivaled. Now, saying I would ruin an RX-7, that's also abusurd. IF I were to buy an 88 Turbo II, yank the engine out and put a 5.0 H.O out of a Mustang GT..then yes, that was inconsiderate. But I've learned that N/A 7s arent the best canidate for performance, SURE they can make power..But, it puts a tremendous strain on the engine, and i'm just not comfortable right now to do something like that I could use nitrous, but that's not really my forte as a power adder, unless the engine is powerful as it is. I can get a conversion kit for around 500 with a driveshaft and all the wiring I need.

aluminum blocks are also expensive aren't they?

anything ford makes is a hunk of ****.



you'll find a 350hp/350tq 302 isnt $500 either

T210thanny has 260rwhp and 300rwtq .... so he is almost at the 350/350 mark with stock engine and turbo



so THERE!

I wasint talking about turbo.. Im talking about N/A.



Aluminum blocks arent that expensive, it depends on what you buy, yes a fully built ford racing GT-40X will cost you around 2 grand. If you know what to buy you can do it for 1,500 or so. I havent seen the weight diffrences between the stock 5.0 and the 13b so I don't know yet. And I said the conversion kit is 500 dollars. I can get a 302 for 200 dollars, the mods to get me that far, perhaps 5-700 dollars. Depending on which route I go. Compared to a 20B swap, or the hassle of swapping in a Turbo II engine (instead of just buying one) it seems a hell of a lot easier.



I'm not here for a battle beween V8s V6es, I6es I4s and rotaries..I could care less. I have favorites in every diffrent style. And it's pretty meaningless to fight over "which" is better..Because I don't give a damn.

Good luck on the swap. Make sure you post lots of pictures.

Thank you.





I hear one more dumbass comment, or even a comment about how v8 swaps suck and this thread is closed..

I will..It's gonna be awhile because I do plan on running the rotary around for awhile first ;p As soon as it has a problem or I find a cheap alum block, it's comming out. Or if I get enough money for that 88 T2... :x

In my opinion the rx-7 is breath taking experience from the ground up, it's a complete package a racer from concept to production everything that is done to it is for a reason to serve a purpose (function before form). There are a few rules to a rx-7: 1. keep it light! 2. don't drive an automatic they're crap. 3. the heart and soul of the car is the rotary engine. That being said you should be praying to the car gods for letting have the privilage to even get behind the seat of such a rare and fantastic machine. So instead of learning everything you can about it. So as to really appreicate it for what it is you are going to tear it apart and disect it, then deface it all for a half second off an et. But only in a straight line.



I'd learn everything you can about your car and it's wonderful powerplant maybe even their racing heritage before you think you can improve apon mazda's design with a v8.



But what ever you do good luck! Please just don't make our wonder car's that everyone on her loves and cherishes a pile of **** like most idiots.

please dont swap any piston engine into an rx7

Tear it apart? Im bolting a cradle in, and pulling out the driveshaft, a little bit of rewiring..That isnt tearing it apart. The only "tearing" is getting the shifter located in the center console. I don't like N/A rotaries. They're too slow. I don't have the know how nor the pateince to learn how to build one.





That wasint Mazdas deisgn, the Wankel belongs to Dr. Wankel.. :P, they opted to use the engine as an experiment. The thought, and theme has been used plenty of times Exotic and Domestic. And have you driven a FC with a V8? I drove one a couple of times, they handle just as well. People think of V8s as huge heavy bulky slaps of iron and moving parts.. Sure, they are..but, not all of them, hell not even most of them..It's not like im using a hemi out of a 'Cuda. :P



Tell you what, if I can make 350 wheel horsepower and 400 wheel torque without porting the living hell out of the engine, spending more than 4,000 on the engine, and not having to worry about blowing a seal, keep a tame idle..let me know. Realistically. AND N/A!!

I have been reading this post and seeing that i have seen alot of swaps at eld performance --the main thing here i see is about money.Do you honestly have any idea what its going to run you to do the swap?--first off to get 350hp out of the 302 is going to be costly.The one thing to think about here is what will take the punishment the most and what will be more drivable--the 7 with the 302 of course,350 horses out of a 302 will be easy to achieve without worrying about major breakage like you will with the 13b.I dont care what the hell anyone says about why are you ruining the car.Your not ruining anything.People have been doing motor swaps for years.And also this crap about center of gravity--lol

how much do you thing the 302 block weights with a carb compared to a 13b and all the crap on it.theres not much difference.I have seen 3 motor swaps at eld.1 to a 302,1 to a 350 chevy,and the other a buick grand national motor--if i was going to do a swap the grand national motor was the ****,that car was a beast!

Trust me man, I can make a junkyard fiveoh put 350 to the floor with less than 700. That includes the motor. It doesnt take much really.



GN 3.8L.. I dunno, that might require some "tearing" :/ I want to be able to put the 13B back in later on.

getting 350hp from a 302 is not costly and it will be very reliable.



the engine itself would be cheaper then getting 350hp from a rotory.

Saying that you needed a engine either way that is.



the swap and cost invoved would probably be about equal to

the time and cost involved in getting 350hp from a rotory, by the

time you buy a turbo kit, intercooler, address the fuel delivery,

get a standalone, and then of course the ever so important step

that will require someone who knows what they are doing

and not a downloaded map - TUNNING. You would probably spend

less overall on a 302 swap, and it would run for 100,000 miles at least.

then I could always add two T3/T4's out of SVO/TurboCoupes..



heh.

^ See tear apart ^



Like everyone else said I wouldn't rule the rotary out so quick 350 hp, isn't an easy task even with a 302. I'm my eyes with what i know 300hp out of the rotary with the way the powerband is and the power to weight ratio will be faster than any 350hp 302 in the rx-7 chassis.



300hp out of a n/a is quite possible I could do it for around $2500 easy. My next N/A that I build will push at least 250-275hp for around $1800 but it's all in who you know.



Keep in mind your N/A tranny will not with stand that amount of torque. With a 302 it will take a custom engine mount, tranny, driveshaft, complete rewire. It's a lot of trouble.



With the rotary and a bit of knowledge you could get it to be even faster then the 302 (keep in mind the reason your apprehensive of the rotary is because you know nothing about it) All it would take would be just the engine being built, nice exhaust, intake, and a few other mods. Nothing major; the n/a tranny would even take the hp, because you wouldn't be making excessive amounts of torque.



Or just stick with your original idea of the 20b it wouldn't be that expensive not much more than the 302 conversion and then atleast you would have something special instead of just a car with a v8 in it.

Alright man, let me brake it down for you.



302 350 horsepower.



Explorer 5.0 intake

351W heads (ported, of course)

headers (shorties in this case)

full exaust, H pipe

B303 cam (prefrence, most go with E303)

fatter valves



300-325whp from ghetto bolt ons. I could get a hair up my ass and pop some GT-40 heads on it, or trick flows, balance the son of a bitch and put a lumpy cam in it.



Now 350 would just require a couple more bolt ons. but those are for when I finish, if I don't decide to bolt two turbos on it, the stock ecu can handle it I dunno about the rear end on the FC though..



Or I could just spray it, and make 350 on a stock block. It's not that hard man. They don't call the 5.0 the mechanics best friend for nothing.



I know enough about the 13b to know a very fast one is going to be very uncomfortable to drive. Whereas the comfort levels in 302s start to fall in the 500hp range...rather than the 300s. this will be a cruising car.

I can see your point on the comfort levels but what you're gettin in return is nada. look at it putting a 302 in a rotary it defeats the purpose, all you're getting is another car with a v8. just some typical done over so many times in the pointless existance of going straight for giggles its redundant. atleast do something thats original to some extent. then again the commonality of something popular in rural area lore might be inticing in the over all out come of boredom. Its easy to just learn what it takes and hook up the rotary versus the v8 what you named off up there is prolly more work than swapping in a t2 engine or just going the porting route with the 13b or even a 20b swap.

Can I please get some educated opinions? This whole "center of gravity, you're aiming for ET's" garbage is so lame.



A.)SBFs weigh a fraction more than a 13B. GASP! A HUGE V8!! IT HAS TO BE HEAVY..no..it isnt. It's a 302..that's a damn small V8 now, a 454 or a 500..Now that's a big engine.



B.)Cruiser car. Not based on straight line performance. It might get ran down bradenton speedway to shut people up.



C.)Go out and drive a V8 RX-7, take some turns, come back to me. Thanks.



D.)Individuality is what ricers scream, but look how much of a cookie cutter industry that has become. I could care less how much I stick out. Or how much I fit in, people have used 20bs, people have swaped "JDM" 13B turbos. People have done everything. As I said, I rather be common, and fast. Than slow and proud.

im unlocking this topic and moving it, whoever the mod is who locked

it- sorry, but I see no reason for it to have been locked in the first place.