FE3 piston engine into RX7
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FE3 piston engine into RX7
Hi everyone,
I am new to this site and currently own a 1990 mazda mx6 turbo. I have swapped a jdm turbo fe3 engine into it. I keep breaking the transmission( 5 so far) and have terrible traction on the street. I am really tired of FWD and was thinking about swapping the engine into a 2nd gen RX-7. A few people have done it already, but I need some answers before I purchase the donor car. I am having trouble finding a turboII car local for a decent price. I see a lot of NA's around in good shape for cheap. So if I were to get an NA one...
Is it possible to swap the turboII rear diff setup in and are the lsd's in them strong? My engine is making around 400whp, so i need a diff that will last more than a week, unlike the one in my trans now. I will also be using either the turboII,b2600, or 929 trans. all of which are similar, just not sure which one i am going to need as far as gear ratios,shaft splines/length, etc. I will be using my sds standalone engine managment, so wiring shouldn't be a problem. So basically I want to use a non turbo car, but need to know what has to be done to have the stronger drivetrain of the turboII. Please no negative comments, and I appreciate any help you have to offer.
thanks
Cory
I am new to this site and currently own a 1990 mazda mx6 turbo. I have swapped a jdm turbo fe3 engine into it. I keep breaking the transmission( 5 so far) and have terrible traction on the street. I am really tired of FWD and was thinking about swapping the engine into a 2nd gen RX-7. A few people have done it already, but I need some answers before I purchase the donor car. I am having trouble finding a turboII car local for a decent price. I see a lot of NA's around in good shape for cheap. So if I were to get an NA one...
Is it possible to swap the turboII rear diff setup in and are the lsd's in them strong? My engine is making around 400whp, so i need a diff that will last more than a week, unlike the one in my trans now. I will also be using either the turboII,b2600, or 929 trans. all of which are similar, just not sure which one i am going to need as far as gear ratios,shaft splines/length, etc. I will be using my sds standalone engine managment, so wiring shouldn't be a problem. So basically I want to use a non turbo car, but need to know what has to be done to have the stronger drivetrain of the turboII. Please no negative comments, and I appreciate any help you have to offer.
thanks
Cory
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From what i've read, its my understanding that drivetrain's are interchangable between turbo and NA models, just be sure all the parts match up (Ex. Turbo II Diff for a Turbo II driveshaft and Turbo II Trans) .
If your worried about how strong a Turbo II diff. is, i'd recomend you replace it with something aftermarket. any used TII diff. is questionable
If your worried about how strong a Turbo II diff. is, i'd recomend you replace it with something aftermarket. any used TII diff. is questionable
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Yeah, might as well go NA and swap parts and save over a turbo. You'll get better answers from the "other engines" section. Plus some of your questions, like how much power can the TII drivetrain hold, could be answered with a search.
And maybe you could consider putting that engine in a different rwd car. A miata would give better traction, for example, if the engine fits. Or you could buy a TII and (with a great deal of effort) upgrade the rotary to the same or greater power. That way you don't ruin the "front-mid engine" configuration. I know some people in the "other engines" section don't care about that. But balancing the car and pushing the engine/weight towards the center seems to matter a great deal to Porsche, Ferrari and modern Japanese sports car makers.
And maybe you could consider putting that engine in a different rwd car. A miata would give better traction, for example, if the engine fits. Or you could buy a TII and (with a great deal of effort) upgrade the rotary to the same or greater power. That way you don't ruin the "front-mid engine" configuration. I know some people in the "other engines" section don't care about that. But balancing the car and pushing the engine/weight towards the center seems to matter a great deal to Porsche, Ferrari and modern Japanese sports car makers.
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i knew someone was going to call me a homo or something along those lines. But to each his own.
Thanks for the advice everyone.
I will probably be getting an NA car and just swap the tranny back. I really don't like how miatas look and they are too small for me. I am going to check this car out. It looks like a turboII but it's NA. I think it would be a good canidate for the swap.
http://cgi.ebay.com/ebaymotors/so200...QQcmdZViewItem
Thanks for the advice everyone.
I will probably be getting an NA car and just swap the tranny back. I really don't like how miatas look and they are too small for me. I am going to check this car out. It looks like a turboII but it's NA. I think it would be a good canidate for the swap.
http://cgi.ebay.com/ebaymotors/so200...QQcmdZViewItem
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#9
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Dont worry about all these DIPSHITS. You obviously know what you are doing and I would love to see half these members that insist on flaming to even try to tune a stand alone ems WITHOUT bolwing an engine. Check out mazdatrix.com for an aftermarket diff and all the 2nd gen tranny parts you need. They also have very useful info that might help you choose the right components.
I'd like to hear how a RWD transmission mates with a FWD motor?
Now look who sounds like a dipshit...
-Ted
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i had a friend who had a mx6 turbo. his idea was to swap the rotary drivetrain in the mx6. he said that the rx7 rearend would bolt in the mx6 and turn the car into a rear wheel drive vehicle. he never got it done. it's and interesting idea, but anyway if you done want to do that buy a NA (which i hate to see done you can make more than 400 hp easily with a rotary) then you can buy the trans and diff and start your project.
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the car i have now is 1990 mazda mx6 gt. the original motor was an F2T 2.2 sohc turbo. The JDM motor that I swapped in is a DOHC 2.0 FE3 non turbo. But i built the motor up and turboed it. The FE3 motor comes in rwd trucks, and the rx7 turboII trans bolts up to the FE3 with the truck bellhousing. Also the rx7 turboII and mx6 share the same clutch setup, so I can reuse my racing clutch setup. I am running a small mitsu 16g on the car right now. The car went 11.9 @99, I missed 4th gear bad and rolled the rest. Next run on the launch i sheared all the teeth off the spider gears in the diff.
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the b2200 b2000 transmission will work, but it is very weak and uses a smaller clutch. it is very similar to the NA rx7 trans. I didn't know the 929 came with a 4 cyl. manual? I know the rare v6 manual 929 has a almost the same trans as a turboII, but the bellhousing is different.
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I can talk all day about how to stuff a 20B into an FC, but does that mean you can do it?
I highly doubt that.
I've never heard of this being done.
A quick web search popped up choke ****...in Aussie.
So show me proof if this is being done in the U.S.?
-Ted
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there are 2 in this thread...
http://www.mx6.com/forums/fe-dohc/20...-rx7-pics.html
http://www.mx6.com/forums/fe-dohc/20...-rx7-pics.html
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the b2200 b2000 transmission will work, but it is very weak and uses a smaller clutch. it is very similar to the NA rx7 trans. I didn't know the 929 came with a 4 cyl. manual? I know the rare v6 manual 929 has a almost the same trans as a turboII, but the bellhousing is different.
Most of the 929's came with 4-cyl in Europe (MA 2.0l, FE 2.0l or F2 2.2l).
Regards,
Frode
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Saying it works is totally different than actually making it work.
I can talk all day about how to stuff a 20B into an FC, but does that mean you can do it?
I highly doubt that.
I've never heard of this being done.
A quick web search popped up choke ****...in Aussie.
So show me proof if this is being done in the U.S.?
-Ted
I can talk all day about how to stuff a 20B into an FC, but does that mean you can do it?
I highly doubt that.
I've never heard of this being done.
A quick web search popped up choke ****...in Aussie.
So show me proof if this is being done in the U.S.?
-Ted
Use thermostat housing and some other stuff from a KIA sportage (same engine, but rwd) and everything fits nicely. If you do this into a previous FE/F2 car, you can use the stock motormounts. You will need an B2000/B2200 or 929 oil pan.
Almost as simple as fitting a 13B into a 12A chassis.
#22
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there are 2 in this thread...
http://www.mx6.com/forums/fe-dohc/20...-rx7-pics.html
http://www.mx6.com/forums/fe-dohc/20...-rx7-pics.html
Notice, RHD chassis...at least for the first one.
The second pic looks LHD?
See the mess of pipes for the turbo exhaust manifold and turbo?
Does that clear a LHD steering?
As you already mentioned, the plenum is backwards.
The one included in the pic uses a custom (sheetmetal?) plenum.
What about power steering?
What about AC?
Radiator hoses are trivial enough, but it's not close to being drop-in.
So, this ends up being an exercize in making it run.
Dropping the engine in looks pretty simple enough, but that seems to be the easy part.
I'm familiar with 4AGE 20V swaps into AE86's, and I wouldn't call it easy, even though the engine and trans mate and drop right in.
-Ted
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it won't be as difficult as you think. I have done plenty of engine swaps. there will be plenty of room for everything. I also own a 1988 chrysler conquest with a turbocharged chevy 350 swapped into it. the rx7 will be a lot easier than that.
#24
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the turbo II tranny and rear end should hold the power and torque, i seen 600HP rx's with TII tranny and rear end they hold it fine. but mating the FE3 engine in a turbo II tranny will be a challenge. you migt just go with a T5 tranny and a custom bell housing. but ill be interesting to see a FE engine on a FC
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thanks for the info. the motor will bolt right up with the bellhousing from a mazda bongo van. I has the same bolt pattern as the fe3 and uses an r type trans like the rx7 turboII.