RX7 engine

ProShift · #1 08-02-2003, 01:21 AM

do u think it would be a good idea to put i rx7 engine into an mr2

ac427cpe · #2 08-02-2003, 02:24 PM

i don't think it's possible

ProShift · #3 08-02-2003, 08:59 PM

well why the hell not? u could pretty much put any engine in any car if you have the rite supports

Turbo Thoughts · #4 08-03-2003, 04:14 AM

woah. you've got to be joking. first of all, they're engine mounts. second of all, although you probaly can get one in, the transmission and engine are designed to go in a tottally different way and you'd have to gut the car.

go learn something... look at your mustang engine and trans and look at some front wheel drive 4 cylinder's.... imagine what it'd be like getting that mustand engine in there... whether its a ford contour or honda.

klohiq · #5 08-03-2003, 03:17 PM

i think the stock turbo 3s-gte is way more reliable and has way more potential than a rotary. Notice how most people with an Rx-7 that want a lot of power usually swap in a supra engine. Cylinder engines are just more reliable at high power and not nearly as delicate. Sure your engine will spool up slower than a rotary and it might have some other downsides, but the gas mileage alone is well worth it imo.

I hate rotaries, but I love the rx-7. Great idea, but since there are piston engines why try to "reinvent the wheel" as some would say...it's already good enoug.

Along with the reliability and probably severe cooling problems from the mr2's engine location you will have mounting troubles and space problems. You'd probly spend over 20k on the swap if you bring it somewhere and it would take months for all the custom work.

Why bother??

ac427cpe · #6 08-03-2003, 08:59 PM

there are too many rotary bashings here, u could have just put in the last, "why bother" part

klohiq · #7 08-04-2003, 03:56 AM

sorry...i just think its good to give a reason rather than add to the people that just say "it's too hard...do another swap that every other person is doing"

you get people trying to be different by doing a swap that they think will be good and getting laughed at every time they go to different forums asking about it. Rotaries are amazing engines...I never said they weren't...they just have an achiles (sp?) heel...

NSXN8 · #8 08-06-2003, 03:18 AM

If you can put a rotary engine in a Delorean then i am sure you could put it in a Mr2!!!

jennmr2 · #9 08-06-2003, 09:49 AM

im not rotary bashing, but i completely agree with klohiq. i think the 3sgte is way more reliable of an engine. whyd they put the 3sgte in the castrol supra?

dont waste your money man, go thru neishlin motors and get a 3rd gen 3sgte or get a 2.2L block and put the 3sgte head on it if you wanna be different and not just have a 3sgte. you have to think though.. what would make more sense!? keep the rotaries in the rx7s and dont ruin a perfectly good mr2.

...and i dont think itd fit..

typerico · #10 08-06-2003, 02:34 PM

yo einstein, why even bother bother spending all that mula and time customizing and making it fit to a two?

DensoSupra · #11 08-10-2003, 02:19 AM

Quote:

Originally posted by jennmr2
whyd they put the 3sgte in the castrol supra?

JGTC cars can use any engine they want as long as they stick to the manufacturer of their car. The 3sgte is much lighter then the 2jzgte and still easily capable of the 500ps limit.
This whole 13b mr2 thing is stupid. Unless you want to try and convert an mr2 to FR then it's pointless to even try. I'm sure you could probably spend $50,000 trying to get a MR 13b mr2. I really don't see how you could sort out the tranny issue....

1ofthesedays · #12 09-21-2003, 07:11 PM

Quote:

Originally Posted by klohiq

i think the stock turbo 3s-gte is way more reliable and has way more potential than a rotary. Notice how most people with an Rx-7 that want a lot of power usually swap in a supra engine. Cylinder engines are just more reliable at high power and not nearly as delicate. Sure your engine will spool up slower than a rotary and it might have some other downsides, but the gas mileage alone is well worth it imo.

I hate rotaries, but I love the rx-7. Great idea, but since there are piston engines why try to "reinvent the wheel" as some would say...it's already good enoug.

Along with the reliability and probably severe cooling problems from the mr2's engine location you will have mounting troubles and space problems. You'd probly spend over 20k on the swap if you bring it somewhere and it would take months for all the custom work.

Why bother??

actually, the non-turbo rotaries are very reliable. many people have over 200k on their 1st gens.

"Notice how most people with an Rx-7 that want a lot of power usually swap in a supra engine"
how many people have done that? the only people i know of are the people of SP Engineering.

most rx-7 people who want more power go with a single turbo setup or swap a three rotor mazda cosmo 20b engine in. rotaries are very potent engines and are light as hell, too. that's why the rx-7's have a near perfect weight ratio with the FD having a perfect 50/50 weight distribution. reliability for the rx-7 is all in the tune and maintenance. thats why the people who do it right have over 100k on the clock. true rx-7 enthusiasts stay with rotaries because without it, it wouldnt be an rx-7. RX-7 = Rotary EXperiment 7.

Quote:
--------------------------------------------------------------------------------
Originally posted by jennmr2
whyd they put the 3sgte in the castrol supra?

they also put it in there to have a closer 50/50 weight distribution.

klohiq · #13 09-21-2003, 07:34 PM

I've seen a few...I know what you're going to say...no link no proof, but I know of more than one...

If the stock engine can handle reliably at 800+hp then tell me the 2jz isn't worth it. The only reason I see to keep a rotary in an RX7 is to keep it true to it's model and make. 3rotors would cost a lot more than a supra engine I'm sure...let alone you have to import them and they are much more rare than a supra engine.

The 2jz and 3sg will both give the supra a near 50/50 weight distribution I'm pretty sure. Just as an rb26 or 25 will give a 240sx a near 50/50 weight distribution even though it's quite a bit heavier than an sr20, ka24 or ca18 which were all in the car from the factory (under different name plates and not in the US). Most of the weight increase is usually in the transmission which is much closer to the center of the car than the engine so it affects the weight distribution a lot less.

1ofthesedays · #14 09-24-2003, 10:20 PM

i've been reading online and most rx-7 people say that a total 20b swap will cost about 30g's. it must cost a lot to custom fabricate all that stuff for a 2jz swap.

mkiv supra turbo has a 53/47 front to rear weight distribution and weighs 3,505lbs. so its pretty close, 3sgte will give it a closer 50/50 weight distribution along with a weight reduction.

i dunno about the jdm silvias but the u.s. s14 240 has a 55/45 weight distribution. so if the jdm ones are anything like the u.s. ones, then the rb series engines will throw off the weight distribution a bit more. u.s. s13's have a 52/48 weight distribution so that will throw it off a bit also. i dont have any specs on the jdm cars but im pretty sure they would be similar.

JekylandHyde · #15 09-28-2003, 07:45 AM

You want to get rid of a realiable 3sgte and put in an unrealiable rotary engine?

Not sure what would be more expensive.... paying to get it in or paying to keep it running.

I have 195,000 miles on my Turbo MR2 at double the OEM HP levels... do you know of any RX7s hitting 200K miles on the original engine?

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