Ok, so I know these kinda "swap" questions/polls show up alot, but hopefully this one will be different.

I've been doin' some research and want to get some opinions from more experienced people. I understand that the 13b-re (JC Cosmo) is a MUCH easier swap than the 20b, and that it has a little more power than the T2 due to its port sizing.

If I were to go from a NA to one of these which would be the better all around choice?

Any idea how much I might expect to drop for a 13b-re fully installed and running (ballpark)? Did the guys over at fc3s.org ever finish their 13b-re motor mounts? Anyone in Cali done this or know if I would be able to pass emissions here? Icemark?

Anyway hit me up with ideas.

-J

 

No-one that I know of has done one and passed emissions.

Doesn't mean that it has not been done... just means I have not heard of it being done successfully and passing emissions.

 

Personally, I would just do a tii swap. You can get a streetport pretty cheap, and it can handle plenty of power. It can probably be done for cheaper too since you can get most of your parts from a junkyard.

 

I did the t2 swap.

The cozmo would be very cool, check out www.teamfc3s.org/forum in the picture section there are pics of somone doing the conversion

 

Glad to see a V8 isn't an option in the poll.

 

The other thing to remember is that techincally the 13BT was a option in the RX-7 (as far as the state is concerned), so if you swap underhood stickers and retain the emissions, then you are much more likely to pass.

A problem that the 20B and 13BRE would have.

 

California law strictly states that the motor (any motor) must be from the same year or newer, and as long as all smog equipment remains intact. Once the swap has been done you can go to a ref station and have your car tested for a motor swap . If it passes they issue a new sticker/plate so the normal smog tech can smog your car legally. Check it

http://www.smogcheck.ca.gov/StdPage....s-Jan_1994.htm

 

The only way you'll pass emissions is if the turbo motor is from a newer chassis car and you have the smog referee certify it, or if you go 13B-RE you can bribe a smog shop to pass you.

 

Why??

<----- Likes starting ****...

 

Cause the power to weight ratio is of a V8 is evil (or so i have been informed). That's what makes the Rotary engine neato (big power, light weight).

 

<------- likes stopping ****.

 

<---- Likes Pizza.

 

<------------ likes *****

 

I was just messin around

 

But I'd bet youd be all for a 20B swap, right? Which would F-up the weight balance alot more than an aluminum head (or block for that matter) V8

 

but it still keeps it in the family

contemplates a B16 into 1st Gen mustang just to **** people off.

 

im glad i dont have all that crap emmisions here in miami florida

<---------------------- likes it here in miami

 

Thanx, guys.

Yeah, didn't put a V8 or anything like that on the list cause I'm not ready to start that kind of project. Besides I think a 7 should stay rotorary. That's part of what makes them unique.

Anyway gonna do some more research on the 13b-re. Maybe I can do and trick the emissions guy into thinking its a 13b or T2.

-J

 

I'll keep in mind though what you guys have said. Sounds like you think a T2 swap is better. Well, it'll just give me something to do at work while things are slow. Research I mean, not the swap.

-J

 

OK all you V8 RX-7 bashers .... let me give you some stuff to think about:

Here in California, to remain Smog legal the engine in your vehicle has to be same model year or newer than your chassis, and it must meet the Smog requirements of the engine year.

Example: Let's say you installed a 2003 RX-8 motor in a 1986 RX-7. Here in California, that 1986 RX-7 would now have to meet 2003 emissions standards which a lot more strict than 1986 standards. Also, this is only legal after the state inspects it and certifies it

Any engine used in California has to be certified for California and all it's emissions must be intact. Any modifications to the engine have to have a C. A. R. B. # So this automatically rules out both a 20B or a 13BT conversion here in California if you want to remain emissions legal.

You can convert your N/A RX-7 into a Turbo II but it is still technically considered an engine conversion that the state needs to certify. Sure they "might" not catch it, but be prepared for a lot of headaches if they do. You are more likely to get caught if the engine doesn't look stock (I.E. modifications).

Now with all this being said, there is a loop hole in all this madness in the fact that in the rules it doesn't say the engine has to be the same make as the chassis. So I "can" replace my 1991 13B with a 1991 Chevy V8 and as long as I keep all the V8s emissions equipment, it is eligible to be certified by the state.

With my V8 conversion, I now have the power I want Without having to worry about the Smog *****. I don't understand some of you that get all upset by someone like me, when you really should be upset with the tree hugging political leftist out there who are trying to make motorsports illegal.

 

Hey, V8RX7com, I don't have anything against V8's. Just not my style. Anyway, I did read something important in the link provided by Rotary Racer:

According to this you need to make sure that the emissions are just as good or better. Obviously this might provide a problem if you are dropping a big V8 or other type of engine. You gotta make sure that the V8's emissions are just as good if not better than the 7's. Don't know how hard this is, but could be more hassle than it is worth.

-J

 

I don't have emission checks where I live. Our cars can kill small animals and get away with it.

 

I think you might have misunderstood what the quote above means:


This means my 1991 EFI Chevy V8 in my RX-7 has to be “just as good or better” regarding the emission outputs for a 1991 EFI Chevy V8 not a 13B Rotary. (there are few V8 RX-7 conversions out there that have been certify by California)

FYI - In 1993 they started the OB2 emissions standards for all cars. The OB2 standards are stricter compared to the OB1 standards and that was one reason I choose a 1991 Chevy TPI V8. ….. I know way too much about California’s Smog Laws

 

V8RX7com: Ok, I guess that makes sense. Sorry, I'm a Computer guy, not a lawyer. I have a hard time reading legalese for what it actually means. Thanks for the clarification.

-J

 

IM ALMOST DONE WITH M NA--->T2 SWAP...HAVE HER UP AND RUNNING IN NO TIME....YA WHEN THIS ONE GOES IM LOOKIN FOR 13B-RE...