without spending a lifetime searching the board.... is there anywhere that has done a few 3 rotor upgrades with success and have a package price? I don't want to pay a local guy $$$,$$$ to attempt it if i can trailer my car a hour away and get someone who has done a few.

I am just looking for a naturally aspirated 3 rotor i think...350-400hp.... i have a blown motor rx8 that would love a V8, but that apparently is not in the cards just yet.

thanks

 

might help if you list your location. nobody has a kit for this swap and it is VERY expensive and takes alot of time. theres a couple guys here that have done turbo 20b swaps along with 13b re, rew etc. i think thm is working on a 20b na now. you have alot of research and you are gonna get flamed for posting this. btw i hope you have a min of 15-20k saved

 

v8 is cheaper then a 20b. unless you do it (build) EVERYTHING yourself. even then it's well over 8k for the main parts.

 

That's if you get a 20b for free

 

hey fuz i want a free 20b. where can i get one of those

 

You have to start a new thread asking about doing a swap. They fall from the sky after that.

 

Msp- ask yourself this... Do you have at least $15,000 to spend freely? If not, no 3 rotor for you. A nice built 3 rotor from Lucky Seven will cost you $7500, almost identical to an LS6 .

 

I'm afraid the board will see many more threads like this - I just watched another review of the RX-8 that included the "it's so easy to get more power by just adding rotors" jem.

It is only easy if you are Mazda.

 

ahahaha.... i knew i would get a few flames...ahah.... i saw one guy who said he only had $7500 into a turbo 3 rotor install, but apparently puerto rican $ is different than USA $. ahaha

I was thinking $8k ish would get me something neat and semi reliable...i don't want to spend $14k (what i was quoted) for a V8 install...

I am in harrisburg, pa...

doh.. :D

 

2jZ.

 

a block will cost you $3000~$4000
rebuild kit: $1200
builder to simply assemble it: $700~$1000

We're already at/over $5k, and that assumes doing work yourself to break the engine down yourself, clean it, and deliver it to a builder.

You're wanting NA, so someone is going to have to build a custom intake setup that's not designed for FI. This could be $2000+.

You're also wanting 350+ NA, so you're looking at porting... +$1000

Computer? $2000

Tuning? $1000

we're already at $9k without custom intake manifolds, and also not including everything else that has to be fabricated to mount the engine to the chassis, fuel system upgrades, wiring harnesses, etc.

You're going to spend at least $15,000 USD if someone else assembles the engine, tunes it, and you do everything else.

Cheaper option:
rebuilt renesis + turbo = 350~400HP for insanely cheaper. I would dare say that you could build 2 400HP renesis blocks for the cost of 1 3 rotor setup in full (if not more). Shortblock + rebuild and porting... maybe $3000 per block. Complete turbo setup $4000.

That comes out to roughly 4 complete engines and a turbo setup for $16,000...

 

Prices are low on the rebuild side and a little high on the porting. Please do not completely disassemble a motor and then take it to a builder. I am sure you have a profession and are good at it. Let someone who is good at what they do help you.

I would like to see that rebuilt motor and 400 hp renesis for 7K. No offense, but its not happening.

OP if you are interested in a 20B swap I can discuss it w/ you and walk you through all the options. The motor will cost close to 7K to do it properly.

I am attaching a picture of the 20B swap I am in the middle of w/ a custom Tremec T56 behind it. Picture of said car below

 

you can pick up a 20b here in canada for about $4000, includes all turbos and accessories, now I have no clue what other costs would occur from the install.

 

Your budget barely covers a properly installed and tuned turbo kit.

 

It cost me well over 8k (probably around 11-12) just to turbo the stock motor with what I felt were the proper supporting mods. That is WITHOUT a rebuild btw...

 

I don't disagree... I'm at work and just ball parking. Point was simply that it's going to cost more than $10k for the full swap, and more likely more than $15k when it's all said and done.

I have about $3000 in my bridgeport block, and that included the purchase of a shortblock. Using my current existing engine would have shaved $1000 off that. That would leave around $4000~$5000 for a turbo setup. That would be a decent turbo kit for sure, maybe not 400 HP, but it would get you pretty far. If you have a shop do all the wrenching and development for you, then I agree with you 100%, "it's not happening".

Regardless, it's still fundamentally cheaper than a NA 20b build. Had he said he wanted 450+, I would be recommending a 20b all day, but not for 350~400. Doesn't make since cost wise, or at least not to me.

BTW, very nice 20b setup. I still like them polished rather than painted. I've seen a lot of painted 20b plenums lately.

 

a NA 20b makes a lot of sense if you track the car imho. The problem is that it wouldn't be street friendly anymore at that point

 

I agree with that, but it could be fine on the streets as well. I just don't think the cost is justified for 350~400 HP. Nothing wrong with wanting it though. If I had just money to burn, all my cars would have a 3 rotor... even the MR2...

 

I love it when people will say it will cost X amount. I have learned that budgets go out the window when you start buying all the little stuff you decide to upgrade

 

It's all in the point of view. A turbo build would be enough for that goal but, if you're a folk like me that travels thousands of miles to and from a track then reliability comes into play. I'm not saying that turbos aren't reliable but we're all humans (ie idiots) and the more parts to keep track of, the more likely one of them will fail for user error!

 

+1111111 I am somewhere between 6 and 7K into my build (stopped trying to even keep track) and I am not even close to 350whp..... although I took the GReddy route before we had some of the top mounts that I would now go for (ie. Turblown + MM tunes)..... but wait until there is a nice upgrade kit for GReddy to BB turbo

 

Problem with that is you don't want to go installing a used 20b without opening it, same thing for all " Jspec" engines. In my experience a good D code 20B block is around $5000...

Just rebuild and turbo the MSP..

 

kdr/speed one in new tripoli. 8k might be short... for roughly 10k you can do either a v8 or 13b... call kdr and speak with dave... there are way too many hidden costs to break it down. some of these prices are absurd. sounds like their pulling numbers out their asses.

 

Do you make a 6-figure salary? Is your 401k on target to hit several million $$$ by the age you want to retire?

This is rich man luxury territory. It will easily cost 3x+ that to have someone else do it right.

 

What Team said. Go to the 7 forums and read David Hayes build thread to get an idea of the potential hell you could go through with this swap. in fact, here I found it for you:
http://www.rx7club.com/showthread.php?t=325733
and here is a more readable article with pictures:
http://punisheddynamics.com/blog/?p=363
This is, of course, an extreme case of what can happen, but something that anyone even considering a 3 rotor swap needs to know.