I love the accelerating sound of LSx engines in FDs. I just hate how loud it is when it idles. When I get an FD I'm seriously going to be debating whether to get an LSx engine or bridgeport the current rotary engine.
@mfpimp28 A working low-mileage rotary could probably be sold for decent money to go towards the swap. If it was a high-mileage one though, it probably wouldn't be worth much so I'd personally just drive it until it dies, haha.
You should have just bought a mustang if your going to add in a domestic engine.
This doesn't make it an RX-7 anymore it makes it into a muscle. Heck why not buy An S2000 or a Supra and add an LS1 in there? People say Rotaries aren't reliable are kinda re-tarted. Look at the 24 hour Le Man competition. It ran for 24 hours, few stops. You just need to learn how to get around a few things in a rotary to keep it running great.
You should just shut up. The rotary is junk. It probably ruined and he saved the car by adding a real engine. You are a real moron to compare a non-production race engine that had millions invested in it to the production failure 13Bs.
@Rotaryisgarbage - lol that Subsw00fers kid is a moron. I agree with you. lol 2 referencing a fully machined race motor to a convo on stock motors. ---- ON A SIDE NOTE: Rotory's are ok for what they are. But what makes then bad is the fact they are temperamental, not very reliable, and drink as much oil as it does gas. Meaning emissions and efficiency is brutal. ----
oh and how did your a/c go? any problems with that? i thought about it and was wondering if you just drop the ls6 in and the a/c components and it wont give you a problem in the factory rx7 vents and everything
did you install this all by yourself or did you have a shop do it? i see you have the hinson supercar kit correct?? how was the install on it? i have been looking at this for sometime now and been going back and forth on ls6 and the hinson kit or a 20b rotor. i wanna get a piston motor in there for better reliability just want your input on this kit.
it does sound like a rotary iddle only 3 times quieter i dont like the v8 swaps for myself i prefer a streetport or bridgy and huge turbo for the brap brap brap brap brap....lol its way better than this.
English must not be your first language. For that, I'll forgive your post which nobody can understand.
I don't know who decided, that revving to 12,500 was ideal. There's also a power under the curve to factor in. What good is 12,000 rpm redlimits, if you only make power in the last 2-3k?
I'd rather only be able to rev to 7k, and make lots of power from 2500 rpms all the way up to 7k rpms, and for it to be smooth.
This comment has received too many negative votesshow
k well the v8 is so heavy and the ttrans ull need to use well make the car way so dam much 20 b with no turbo or any power adders will stomp it easy half the wieght
This comment has received too many negative votesshow
Lighter than a 20B?
I think ur "blazn" too much buddy
People swap out the rotary's not because the LS's are superior, but because they are MORE RELIABLE and easily modded.
I have to say that if you are a true FD enthusiast, you would never do this and you would suck up the back and wallet breaking work to keep the legacy going.
the weight of the LS1 motor in a rx7 has shows to improve the front:rear weight distribution. Yes it weighs more, but the car will handle better and have more power... and be more reliable.
fully accessorized they are within a 10lb difference. A more reliable, easilly modded motor in my mind would mean it is superior..what do you consider superior? And saying somebody swaps out a motor not because it is superior? It is superior in the person who wants the motor swappeds mind. Otherwise why would they do it? common sense would lead me to believe the person assumed the ls1 was more fit for their style. thus making it superior to what it had prior...
Maybe you're all correct? The shortblock (flywheel, wpump, thermostat, pulleys and block) in the Mazda weighs a measly 70kgs, significantly lighter than the V8, but if you do an LS1 swap into a FD3S you're taking out a lot more than 70kgs. The turbos are very heavy, and after the entire conversion the gains are around 10-30kgs. Nothing a diet can't fix. I'm a huge fan of Japanese engineering, but I like the look of the FD and I like cheap, reliable performance. This swap is purely academic.
I love peoples comments on here...those two engines are in two completely different leagues...people just cant see beyond that. 6.0 vs a 1.3...no shit is the ls6 gonna kill it, but the rotary holds its own really fuckin good against a 6.0liter!!!
who gives a shlt about power.. the rx7 twin turbo 13b not the 20b.. the 13b twin turbo can make 600 hp and run 9 seconds street tires go show me a corvette 600 hp and runs 9s in the quarter with street tires. not possible the z06 is 505 hp and it runs 11.5 so shutup i hate people who dis on cars who probably dont even drive on here go ride your mongoose fag boy
i understand but an LSx is aluminum intake to oil pan.high revving high horse high torque its everything you need.i can see traction being a HUGE problem.i have heard those rotaries spin pretty high but why need 10000rpm when you have 8000 and 900horse?
yeah your fuckin dumb as hell,there is no way that that little ricer motor will make more power then that LS6(which blows compared to an LSx) people are pulling 900hp from NA LS2's(same config. as LS6) and thats nothing compared to an LSx which is rated OUT OF THE BOX to 2500 before it takes a shit.you can have one stroked to 454ci and YES thats a small block with big block cubic inches so there is no way that little microwave motor will ever stand up to the cojones that AMERICAN MUSCLE HAS
yer your right in the context of going in a straight line.. but if your circuit racing, a rotary engine is alot lighter and gives the car a better balance than a ls engine.. but in a straight line it will loose yer..
funny cause by sayin that i can c uve never heard a 20b rotary its used in the mazda indi and formula 1 cars puts out 450 hp stock without mods and before the turbo its a fullout racing engine except they take off the throdle stop and rev limiter in race car build ups
plus a 20b would eat up an ls6 if both had no power add ons and with a twin turbo the ls6 would get smoked still the 20b is = to a v 10 street ported so i think ur miss informed if u think a ls6 is faster
what a rotary fanboy, your just mad cause you cant keep the seals in a engine for longer than 30,000 miles. To bad I can buy a 400hp v8 for 1,000 but you have to spend multiple thousands on a 20b that you have to rebuild before you put it in a car.
450 N/A hp from a 20b. Whoop dee doo. There are LS1's with over 500rwhp N/A. LS2's with over 550-600rwhp. The power potential of a v8 is higher(How many rotaries can make over 2000 hp?).
The rotary is amazing for what it can do, but reliable it is not. Not to mention the 20b screwing up the handling on an Rx-7, when the big bad V8 doesn't...
k well ur a noob in a stop s5 trubo 13 b block u can go 700 rwhp with our a turbo and if u go 3 rotar 20 b then u can go 1000 before a trubo easy with a turbo u can take off rev limiter n go 15,000 on ur tack so lets c a v8 do that
Who gives a crap about 15,000 rpms? So much wasted RPM's underneath that.
As I said before, how many rotaries are making over 2000 horsepower? It's not about your max revs, or your horsepower/liter, those are paper arguments. They mean nothing.
Lets see a turbo 13b last over 120k miles, and get you 30mpg, while requiring almost no maintenance besides oil changes. You won't find them.
Yes on the freeway driving 75-85mph. The 6th gear is really tall, so at 80mph you're only taching 1700rpms with the standard 3.42 rear end. With the 4.10's you should be around 2200rpms at the same speed.
My supercharged C5 gave me 29.3mpg driving up to Los Angeles at 85mph with 2 S14's(one with SR20 swap).
It's the around town stuff where the V8 gets thirsty(then again so does the 13b)
My 4spd automatic with 2.73 gears gave me 17-20 around town, and 24-26 on the freeway. The 6spd gives me 12-16 around town, and 26-30 on the freeway.
You'll see better with naturally aspirated engines, I'm running 60lb injectors when stock is 28, so I go through a bit more fuel with the supercharger. But it is so worth it!
yer well if u know how to look after a rotory then it will b reliable and ur only gettin the power coz ur puttin that crappy ls6 in a light car by doin this it will b fast but hav no handling coz it will b front heavy
No it won't, most people who have done the swap have come out with a better weight distribution. As far as the power, an LS6 can easily make over 400rwhp with just a cam and some bolt ons. You'd need thousands of dollars to do the same with a rotary.
i keep hearin' that line Over an Over an Over an Over again ..... like the sound of a J port rotary that kicks the bucket at 30,000 miles. IT DOES NOT ADD SIGNIFICANT WEIGHT. PERIOD. 30lbs......thats it....keeps 50/50 with half tank of gas.....LS engines are all aluminum
All the idiots that always say "American engine is so much heavier" make me laugh. 13b's were a good idea but why not improve the car with an ls motor superior in all aspects...
1 dislike person drives a scion Tc LuL
pawns17 4 weeks ago
how was the wiring when you did the swap? did you get a kit or how did you do it?
Strongtube68 9 months ago
Very nice FD. She sounds like a fricken beast with that cam.
fadedfd 10 months ago
I love the accelerating sound of LSx engines in FDs. I just hate how loud it is when it idles. When I get an FD I'm seriously going to be debating whether to get an LSx engine or bridgeport the current rotary engine.
mfpimp28 1 year ago
@mfpimp28 A working low-mileage rotary could probably be sold for decent money to go towards the swap. If it was a high-mileage one though, it probably wouldn't be worth much so I'd personally just drive it until it dies, haha.
blockheadface 11 months ago
That is incredible and sounds mean as hell! Very nice car!
boostedrsx10 1 year ago
They only banned the rotary cause of it's weight .
Subsw00fers 1 year ago
You should have just bought a mustang if your going to add in a domestic engine.
This doesn't make it an RX-7 anymore it makes it into a muscle. Heck why not buy An S2000 or a Supra and add an LS1 in there? People say Rotaries aren't reliable are kinda re-tarted. Look at the 24 hour Le Man competition. It ran for 24 hours, few stops. You just need to learn how to get around a few things in a rotary to keep it running great.
Subsw00fers 1 year ago
@Subsw00fers
You should just shut up. The rotary is junk. It probably ruined and he saved the car by adding a real engine. You are a real moron to compare a non-production race engine that had millions invested in it to the production failure 13Bs.
Another rotard idiot that doesn't know anything.
Rotaryisgarbage 1 year ago
@Rotaryisgarbage your mother loves rotarys
miamipacheco 1 year ago
@miamipacheco She might until she had her rotary powered car in the shop all the time, which they usually are, then she would NOT like them.
Rotaryisgarbage 1 year ago
@Rotaryisgarbage - lol that Subsw00fers kid is a moron. I agree with you. lol 2 referencing a fully machined race motor to a convo on stock motors. ---- ON A SIDE NOTE: Rotory's are ok for what they are. But what makes then bad is the fact they are temperamental, not very reliable, and drink as much oil as it does gas. Meaning emissions and efficiency is brutal. ----
zcarporn 1 year ago
ur my hero hahah
devildriverfff 1 year ago
Very nice!
No junk rotary in this Rx7
Rotaryisgarbage 1 year ago
pos why to bastardize an rx7
vicioustrees 1 year ago
oh and how did your a/c go? any problems with that? i thought about it and was wondering if you just drop the ls6 in and the a/c components and it wont give you a problem in the factory rx7 vents and everything
Disbro87 1 year ago
did you install this all by yourself or did you have a shop do it? i see you have the hinson supercar kit correct?? how was the install on it? i have been looking at this for sometime now and been going back and forth on ls6 and the hinson kit or a 20b rotor. i wanna get a piston motor in there for better reliability just want your input on this kit.
Disbro87 1 year ago
hahaha its like adding TNT to a fire
cuomz730 1 year ago
it does sound like a rotary iddle only 3 times quieter i dont like the v8 swaps for myself i prefer a streetport or bridgy and huge turbo for the brap brap brap brap brap....lol its way better than this.
rotarycorvette1 2 years ago
engine sounds nice, but does not suit the car
MethanolHead94 2 years ago
wow it fits in there like it belongs in there
Decapitator08 2 years ago 7
@Decapitator08 I know mazda should have just sold the chassies ready for dumping an LS motor in there haha
GodschildJCE 9 months ago
Excellent conversion. Can't wait for mines to be finished :)
fadedfd 2 years ago
i belive in keeping the rotary in an rx7 but the sound of a v8 .....damn its nice
year1966 2 years ago
Awesome job on the RX7!! Although I do find that idle to be pleasant haha. I'm in the process of swapping an LS1 into my FC3s rx7
Fotenks 2 years ago
This comment has received too many negative votes show
TRASH
daygon128 2 years ago
What kind of power is that making?
thacrunkmasta69 2 years ago
woahhh the thing is loud as fuck!! but awesome
PingPong700 2 years ago
how much did that cost excluding the engine. I know the engine is like 5.4k USD from GM website cheapest iv seen on the net
PuppetSinXD 2 years ago
did the guys in birmingham al do the motor swap for you? a buddy of mine has a 96 efini with an ls2. he had the same sticker under the hood.
xdaedisevolx 3 years ago
thunder racing huh, what are the specs on the cam?
randyrhoads6 3 years ago
English must not be your first language. For that, I'll forgive your post which nobody can understand.
I don't know who decided, that revving to 12,500 was ideal. There's also a power under the curve to factor in. What good is 12,000 rpm redlimits, if you only make power in the last 2-3k?
I'd rather only be able to rev to 7k, and make lots of power from 2500 rpms all the way up to 7k rpms, and for it to be smooth.
JustinStrife 3 years ago
its just massive fun that all lol.
abominableaussieman 2 years ago
This comment has received too many negative votes show
k well the v8 is so heavy and the ttrans ull need to use well make the car way so dam much 20 b with no turbo or any power adders will stomp it easy half the wieght
akademiks604bc 3 years ago
hey look another uninformed person. The LSx motors are lighter and have better weight distribution then the rotary. dumbass
Blazn710 3 years ago 2
This comment has received too many negative votes show
Lighter than a 20B?
I think ur "blazn" too much buddy
People swap out the rotary's not because the LS's are superior, but because they are MORE RELIABLE and easily modded.
I have to say that if you are a true FD enthusiast, you would never do this and you would suck up the back and wallet breaking work to keep the legacy going.
They dont call it the "dark side" for a reason
Rosatii 3 years ago
the weight of the LS1 motor in a rx7 has shows to improve the front:rear weight distribution. Yes it weighs more, but the car will handle better and have more power... and be more reliable.
kawana87 2 years ago 11
fully accessorized they are within a 10lb difference. A more reliable, easilly modded motor in my mind would mean it is superior..what do you consider superior? And saying somebody swaps out a motor not because it is superior? It is superior in the person who wants the motor swappeds mind. Otherwise why would they do it? common sense would lead me to believe the person assumed the ls1 was more fit for their style. thus making it superior to what it had prior...
formulafun00 2 years ago 4
this
milkthecow2200 1 year ago
actually thats not completely true. as the other guy said, lsx motors or as light if not lighter than a rotary.
abominableaussieman 3 years ago
Maybe you're all correct? The shortblock (flywheel, wpump, thermostat, pulleys and block) in the Mazda weighs a measly 70kgs, significantly lighter than the V8, but if you do an LS1 swap into a FD3S you're taking out a lot more than 70kgs. The turbos are very heavy, and after the entire conversion the gains are around 10-30kgs. Nothing a diet can't fix. I'm a huge fan of Japanese engineering, but I like the look of the FD and I like cheap, reliable performance. This swap is purely academic.
RobbyBuchin 2 years ago 2
wow the engine in that car made me laugh uncontrollably for a sec. sounds amazing
shizzzleboo 3 years ago
u stop pullin fast at 12.500 but no v8 will do that unlesss it was a full out drag car maybe and that would be maybe 10,000 max
akademiks604bc 3 years ago
Mazda Rx-7 series 5 with 20b on dyno pt.1 serch that 14,000 on rev limiter
akademiks604bc 3 years ago
search this (700HP RX7 Dyno)
akademiks604bc 3 years ago
I want it!
WRXDEX 3 years ago
Very nice swap. I was thinking of building one of these, but not sure how long the down time would be.
I dont have another car.
I wanna sell my 350z, and get me a high mileage rx-7, and go from there.
b00b00 3 years ago
aw man u destroyed the FD . tarnishing the reputation of an FD wif ur stinking v8 . sheesh
yagam1 3 years ago
I love peoples comments on here...those two engines are in two completely different leagues...people just cant see beyond that. 6.0 vs a 1.3...no shit is the ls6 gonna kill it, but the rotary holds its own really fuckin good against a 6.0liter!!!
50Cal586 3 years ago
sweet
a43468camaro 3 years ago
sweet toy
a43468camaro 3 years ago
man these muscle engine just make the rx7 look bad man
just buy a muscle car if u like muscle engine
buklah3 3 years ago
For the record the car ran a 10.7 with a cam, headers, and on these drag radials. It has working a/c and is COMPLETLY streetable.
LS6RX7 3 years ago
who gives a shlt about power.. the rx7 twin turbo 13b not the 20b.. the 13b twin turbo can make 600 hp and run 9 seconds street tires go show me a corvette 600 hp and runs 9s in the quarter with street tires. not possible the z06 is 505 hp and it runs 11.5 so shutup i hate people who dis on cars who probably dont even drive on here go ride your mongoose fag boy
blackspecv 3 years ago
i understand but an LSx is aluminum intake to oil pan.high revving high horse high torque its everything you need.i can see traction being a HUGE problem.i have heard those rotaries spin pretty high but why need 10000rpm when you have 8000 and 900horse?
route66boy 3 years ago
yeah your fuckin dumb as hell,there is no way that that little ricer motor will make more power then that LS6(which blows compared to an LSx) people are pulling 900hp from NA LS2's(same config. as LS6) and thats nothing compared to an LSx which is rated OUT OF THE BOX to 2500 before it takes a shit.you can have one stroked to 454ci and YES thats a small block with big block cubic inches so there is no way that little microwave motor will ever stand up to the cojones that AMERICAN MUSCLE HAS
route66boy 3 years ago
yer your right in the context of going in a straight line.. but if your circuit racing, a rotary engine is alot lighter and gives the car a better balance than a ls engine.. but in a straight line it will loose yer..
ryanacehigh 3 years ago
thank you for giving that import some balls now it doesnt sound like a microwave on high anymore
route66boy 3 years ago
funny cause by sayin that i can c uve never heard a 20b rotary its used in the mazda indi and formula 1 cars puts out 450 hp stock without mods and before the turbo its a fullout racing engine except they take off the throdle stop and rev limiter in race car build ups
akademiks604bc 3 years ago
plus a 20b would eat up an ls6 if both had no power add ons and with a twin turbo the ls6 would get smoked still the 20b is = to a v 10 street ported so i think ur miss informed if u think a ls6 is faster
akademiks604bc 3 years ago
what a rotary fanboy, your just mad cause you cant keep the seals in a engine for longer than 30,000 miles. To bad I can buy a 400hp v8 for 1,000 but you have to spend multiple thousands on a 20b that you have to rebuild before you put it in a car.
simplybebop 3 years ago
450 N/A hp from a 20b. Whoop dee doo. There are LS1's with over 500rwhp N/A. LS2's with over 550-600rwhp. The power potential of a v8 is higher(How many rotaries can make over 2000 hp?).
The rotary is amazing for what it can do, but reliable it is not. Not to mention the 20b screwing up the handling on an Rx-7, when the big bad V8 doesn't...
JustinStrife 3 years ago
k well ur a noob in a stop s5 trubo 13 b block u can go 700 rwhp with our a turbo and if u go 3 rotar 20 b then u can go 1000 before a trubo easy with a turbo u can take off rev limiter n go 15,000 on ur tack so lets c a v8 do that
akademiks604bc 3 years ago
Who gives a crap about 15,000 rpms? So much wasted RPM's underneath that.
As I said before, how many rotaries are making over 2000 horsepower? It's not about your max revs, or your horsepower/liter, those are paper arguments. They mean nothing.
Lets see a turbo 13b last over 120k miles, and get you 30mpg, while requiring almost no maintenance besides oil changes. You won't find them.
JustinStrife 3 years ago
does an ls1 really get near 30 mpg? i like the idea of an ls1 swap
johntran 3 years ago
Yes on the freeway driving 75-85mph. The 6th gear is really tall, so at 80mph you're only taching 1700rpms with the standard 3.42 rear end. With the 4.10's you should be around 2200rpms at the same speed.
My supercharged C5 gave me 29.3mpg driving up to Los Angeles at 85mph with 2 S14's(one with SR20 swap).
It's the around town stuff where the V8 gets thirsty(then again so does the 13b)
JustinStrife 3 years ago
not bad. so around town, how bad is the mpg?
johntran 3 years ago
My 4spd automatic with 2.73 gears gave me 17-20 around town, and 24-26 on the freeway. The 6spd gives me 12-16 around town, and 26-30 on the freeway.
You'll see better with naturally aspirated engines, I'm running 60lb injectors when stock is 28, so I go through a bit more fuel with the supercharger. But it is so worth it!
JustinStrife 3 years ago
oh alright. thats not too bad, i thought it would be worse. thanks for all the info
johntran 3 years ago
so dam weak hillbilly move ls6 is a joke 20b rotary is better and much faster
akademiks604bc 3 years ago
more videos please. this thing is sick
rorocuz 3 years ago
i been seeing alot of ppl putting chevy v8 in a rx7.....why?
thevinceberry 3 years ago
basically, more power, less work(as in repairs), lighter(if it is a LS engine), and better gas mileage.
ksmin1153 3 years ago
my bad, idk why I said ligher. but it is still darn close to 50/50 ratio
ksmin1153 3 years ago
the car looks pretty much stock from the outside exept the aftermarket rims, thats cool,
R0JIBLANC0 4 years ago
left hand drive boo
adambenno 4 years ago
12,000 + cost of the shell
Authentix143 4 years ago
need 4 speed is stupid
celisto001 4 years ago
why would u put that kuk in a rx7 :S
jphillips04 4 years ago
Because it makes more power than most rotary's, for a lot less money, but with a lot more reliability? Just taking a guess here.
XxNeed4SpdxX 4 years ago
yer well if u know how to look after a rotory then it will b reliable and ur only gettin the power coz ur puttin that crappy ls6 in a light car by doin this it will b fast but hav no handling coz it will b front heavy
jphillips04 4 years ago
No it won't, most people who have done the swap have come out with a better weight distribution. As far as the power, an LS6 can easily make over 400rwhp with just a cam and some bolt ons. You'd need thousands of dollars to do the same with a rotary.
XxNeed4SpdxX 4 years ago 3
Fuck yea! The car it comes in has 405HP out the door, and this car is cammed so can you say "POWER"
The ls6 will make the rotary its bitch!
styles707 4 years ago
your gaining about 30 pounds by doing an lsX swap...
Exulia 4 years ago
Which as the original car has 47-53 weight distribution, you've actually improved the balance.
Sephirius 4 years ago
i keep hearin' that line Over an Over an Over an Over again ..... like the sound of a J port rotary that kicks the bucket at 30,000 miles. IT DOES NOT ADD SIGNIFICANT WEIGHT. PERIOD. 30lbs......thats it....keeps 50/50 with half tank of gas.....LS engines are all aluminum
KreepinOutThaKut 4 years ago
All the idiots that always say "American engine is so much heavier" make me laugh. 13b's were a good idea but why not improve the car with an ls motor superior in all aspects...
rompn4x 3 years ago
who cares about handeling ya i would take turns slower but by the time u get the the turn ill be at the next one! score one for america
DirtridinElCamino 4 years ago
Actually the weight difference with aluminum head V8 is is very small, and they still retain close to a 50/50 atio.
jedsmart 3 years ago
damn nice 7 can you post some racing vids plz
rotara666 4 years ago
How much did the whole swap cost you?
carlover2000 4 years ago 3
nah rotary is much better and i run no seals noob metal to metal
akademiks604bc 3 years ago