BlackGopher

I finally acquired enough cash to swap out my engine which is now all but fried. Now I need to decide which engine to put in my FC. As far as I know my choices are 13B, 13B-RE, and 13B-REW. I'm planning on doing some more research myself to find out whats the best to install my car but I thought I'd ask you guys what engine would be the best for an 87 FC in your opinions. I plan on putting a light/medium port on it, an intake, and a full exhuast upgrade including headers for power upgrades. As well as other misc. stuff like FD alternator and a pully set, etc. Any helpful info would be appreciated, or a link that covers this.

Heres what i've gathered so far.
13B: Cheapest, perhaps most practical choice.
13B-RE: Takes upgrades well.
13B-REW: Has most power stock? But more expensive.

Note: I'm not very good at researching this type of stuff so like I said, sorry if any info is incorrect but thats why I'm asking the questions

jarred

13B MSP all the way!!! but anyways...fc3spro has some great writeups on swaps

BlackGopher

Somehow I doubt an RX-8 engine would be practical

lastphaseofthis

iTrader: (8)

20b!!!

RXciting

i'd say RE do a mild port on those and your set

Parastie

Noobs helping noobs...it's so funny...
(Also if you searched you would not have posted this thread)

The 13B-REW will not easily mount into a 2nd gen, there's more info in the FAQ, but basically you don't want to do it.
The 13B-RE will mount a little easier and some company (i don't remember which one) makes mounting brackets for this engine and our car.
13B Stock is as you said, the most practical. You could get the 13B-T (T2 engine) and that would also be exceptionally easy.

Now if you're wanting to keep your car NA, then you really only have two choise. The 20B (a good $10,000 investiment) and the stock 13B. These are the only engines that I know of that run well as NA, although the 20B was never designed to run as an NA.

My advise, stick to the 2nd gen series of engines.

homebrewer

LT1 or LS1 V8

www.wrongmotor.com

http://v8rx7.com/

Rotaries are great in stock condition but increased performance often suffers at the expense of reliability. 300-400 HP at the wheels is easily obtained with an aluminum block engine that nets 30 mpg highway fuel economy. Handling remains similar and weight gain is neglible.

My rotary is running great and has extremely low miles on it. However, when it finally dies, it will be replaced with a piston engine that will be a great sleeper.

www.misred.com also a great site related to a supercharged V6 conversion that netted 10.79 @ 126MPH!

Andy

PS Flaming me for my opinion is a direct reflection of your immaturity and intolerance of differing opinions. It is fine to disagree with my opinions but do so in a respectful manner that does not denigrate me as an individual.

ddub

I am going to say this now before it gets out of hand.

1. This is a rotary section and it's been discussed time and time again that there will be no talk of piston engine swaps in this section, that's what the "Other Engine Conversions" forum is for and that is where all the discussion of this is supposed to take place.

2. Please stop at this post otherwise it'll just start another huge flame war, people getting pissed, and thread crapping.

3. I'm leaving this the way it is now but remember 2nd gen tech = rotary, Other Engine Conversions = piston swaps, please keep it that way.

Thank you.

xtremeskier97

Good moderating dDub.

homebrewer

Good moderating? I don't agree. The moderating was evidenced and ruled by emotion and not logic.

The point of this forums is to discuss the RX7. I know much of our identity of being an RX7 owner is based on being special, i.e,. pistonless engine. However, what makes the RX7 unique for me is its looks and especially its incrediblie handling due its light weight and 50/50 distribution. The rotary engine is icing on the cake, but not the cake itself.

If the kind moderator can point me to the forum rules where discussion about piston conversions is not allowed, I will gladly edit my post and never bring the subject again.

However, to moderate based on your personal opinion of the subject to prevent healthy discussion about this as a viable option is unjust.

ddub

If you have something to say about this please PM me, you're just causing clutter in this thread.

The short end of it. This has been discussed MANY times and it has been decided by the moderators that the technical sections for rx7's (1st, 2nd, 3rd gen) should not have piston motor swap discussions, period. That is why the "Other Engine Conversions" forum was created. It was made for people that are thinking about doing a piston swap, want more information, or want to discuss it. The whole point of it was to keep it out of the tech sections. Sorry, this is not just MY personal opinion but the consensus of MANY people.

That is the end of the discussion or whether this is right or not, please do not clutter the thread. If you have any opinions or concerns, PM me, don't talk about it here.


Also, unfortunately for some reason the powers above (admins) have not made this a "formal" rule in the list of rules for the forum. This has been discussed between the moderators/admins, though, so please take my word that this is accuratre. Unfortunately I cannot go into extreme detail about it because it was a private discussion between moderators/admins.

Parastie

The design is based on the Porches of the day, it's hardly unique and more like a rip off.

You've also started to defend your ideas when they were not attacked and thus you will be starting a flame war that the moderator was trying to avoid. Way to go...

BlackGopher

How about we all stop =)

Anyways, thanks for the advice. And Parasite, I did do a search and didnt come up with the info, I knew it was there but I couldn't find it. So far 13B sounds like the best choice (getting baack to the thread).

RexRyder

iTrader: (10)

I have almost completed a 13b-re swap, and its a lot more money than I expected. Get a 13bt and be done with it.

ddub

Honestly a 13bt properly built (ported/rebuild), good turbo, good supporting mods, properly set up, and properly tuned will give you all the power you could want for less money than doing the same thing with other engines.

I'd just get a 13bt.

BlackGopher

13BT sounds good for power, but im planning on keeping it NA, I dont wanna deal with the whole NA to turbo conversion for financial and time reasons. I guess I forgot to make that clear, my fault. Unless you can put a 13BT in a NA without doing the TII tranny?

ddub

You can, but eventually (with a powerful turbo engine) you'll break driveline components.

If you want to stay N/A, just take your current N/A engine, some good housings, maybe some s5 NA rotors for higher compression, and build a nice engine out of it. All depending on emissions, though, is how big of a port you can do, and then driveability issues come in as ports get larger or more aggressive.

You can build a fairly fun/fast N/A with a lot of work. I'm sitting with an untuned s4 NA right now (recent rebuild and port by me) with a lot of mods and it's faster than my rx8. The rx8 runs a 14.5 stock and my untuned NA pulls on it. Based on that I'd guess I'm in the low 14's, and after tuning I want to hit 14 flat (more aggressive timing and AFR's). But if you want to go faster than that you'll need some big porting, standalone, nitrous is good, and other things.

It all depends what you really want out of it I guess.

Parastie

You can!
Goto www.rotaryressurection.com and click on the Tech link and then NA to T2 swap.

Evil Aviator

You sound confused and broke. I recommend a simple rebuild. The 13B that came with your car is an excellent engine.

lastphaseofthis

iTrader: (8)

you mean http://rotaryresurrection.com/

RexRyder

iTrader: (10)

13b comes in n/a and turbo
RE comes in twin turbo
REW comes in twin turbo

????????

I agree