i was just wondering if u could put a v6 or just 6 into a second gen rx7. plz inform me. i dont think u can but i was just wondering

 

I am sure you can. A really nice one is a GN engine. I've seen pics of RB26's in there too. The skys the limit, just remember the car came with a rotary and it's always the easiest way to go.

Steven

 

If you have the money you can fit any kind of motor most common for rx7s are 350s t type motors and 4.3 v6s it takes time and money but hey whatever floats your boat

 

yea see my grand father has a second gen 7 and i might get it and it has a 6 in it cause he kinda killed the rotory engine that was in it but any way it is in kinda bad condition so i dont know about it. thx for the info

 

how much of a performance diff? i mean what is faster?

 

Unless its a large 6 cylinder then its not that big of a difference in HP. I mean the rotary comes with 146-160 hp with n/a motors so swapping a V6 would make more power i guess. If I was ever putting another motor in my car it would be a 350.

 

a turbo'd Chevy 4.3L would be bad ***

 

would it bolt up?

 

If you have to ask, don't do it.

Chris

 

Imagine a Syclone/Typhoon drivetrain swap. It would be alot of fabrication, but it would be worth it. A 300+HP turbo 4.3 with AWD in an RX chassis wpuld do wonders.

 

GN engine. The only V6 ever worthy of a FC chassis.

 

The VG30t(dett) and the turbo 4.3 are worthy. Both bullet proof and capable of producing high HP/TRQ figures.
The GN motor is so well suited for the FC though...
One thought though..... would the tranny shift into overdrive during a gtr mile run....? I know the GN rear has alot taller gears(3.24?) than the RX7 rears(3.90/4.10).

 

my friend is puttin a 3.8 6 grand national in his turbo II. it should be really fast. but i say stick with rotory. for less hard ache and having to frabicate ****

 

Typhoon/Cyclone??? I don't think that's worth it just because of the drivetrain mods you'd need. Converting an Rx7 to AWD? You'd have to lift it, and then you'd loose handling from that, even though the AWD probably would spread the weight out.

 

if youre going with a v6, why not the 3.8l turbo from a GNX?

 

becuase that's what I wanted to do, and I don't want a ton of people to have the same swap if I decide to do it It's gonna be a couple years before I can get financially ready for it though, so maybe if more people try, I'll have better odds of getting it right the first time.

 

Very nice but I would probably opt for the new 3.5 N/A to save headaches.

However the new mazda rotoary (renissis?) has soome good n/a HP. Wonder how long until I can get my hands on a used one of those?

 

4.3 L chevy V-6 is only a small weight savings compared to a chevy v-8, less than 30 lbs difference.

No really good cylinder heads are available for the 4.3

The crankshaft is a weak design, the connecting rods are not really very good.

The basic design is not very good for vibration control. (new engines have a balance shaft in the valley to help with this problem)

I have a 350, 6-speed in my car, it fit with very little effort, I made my own engine mounts & trans mounts instead of buying the Granny's kit.

If I had to do it again I would find a 4.6L 32 Valve Cobra Mustang engine & manual trans.

 

what i can imagine is a lot of work.......hump work!

 

i would never put a piston engine in an RX-7. but if you must, keep it japanese. i've seen a few different engines put into 7s in japan, RB26DETT, 2JZGTE, 3SGTE, and i think one SR20DET. but i say stick with rotary. the rotary engine design makes more HP per litre than any other engine design i **** you not. if you are thinking about going to all the trouble of putting one of those engies into your car then why not have a custom rotary engine made? a good rotary shop can build you a custom engine designed to your specs. rotary engines are used for alot of things in racing, so just tell them about how much torque/hp you would like, how big, and whether it'll be NA or turbo. they can work with you from there.

 

IT ALREADY HAS THE 6 IN IT!!!

 

i dont know much but i would think a 3.8 would be faster then the stock rx7 rotor................... but u have to take into acount the lbs and i would think a rotory engine would be much lighter

 

Theyre not as light as you think.

 

I have been seriously considering a GN drivetrain swap into a 1st gen. There is a company that makes chevy 10 bolt rears that will bolt right up to the 1st gen, but a 9 inch is much more desirable. I bet I could do it with a 5000 dollar budget, including the car.

 

really?