ReGenesis vs. 20B

[AeroE]

Alright,
got a question for you guys. all things considered, and by all things i mean everything, installation, aftermarket support, mantaining the engine, hp/torque, tunability, street drivablity etc, etc, etc., do you think that the ReGenesis engine will be able to compare with a 20B in an FD? This is assuming that you swapped both engines into identical FD's.

-the two major points that i've been thinking about are the power gains (duh), and the weight (is the difference going to affect handling).

[AeroE]

opps, i ment RENESIS

[J-Rat]

The Rennie cant compare to the 20b in performance...

[89Turbo944]

lets look at this the REN is a 2 rotor NA motor. The 20B 3 rotor twin turbo motor. Hummm.. which ahs more performance potential???

If you do an engine swap go for a 20B, only engine that will improve the car.

[AeroE]

i know that the 20b will blow the socks off of the REN, but that swap can cost over 30k. and what about the weight. wouldn't the extra weight through off the balance.

if i remember correctly, the REN has 5-10 less hp than the 13b tt. so what's going to happen when they build a turbo REN?

And is the 20b swap really very streetable? i mean how many daily 20b drivers have you seen? i often wonder about the reliability of the 20b swap, what's the point of having an awesome car if you have to tear it down after every other run?

There are other important part to ther performance of the car. is the 20B going to win hands down, or is anybody going to stick up for the REN?

[89Turbo944]

The REN does not take well to being turboed. The engine is not built for it.

The 20B is not common because it is costly. And the reason you dont seethe REN being used is because it is much easier to get power out of the 13b than the REN

[Soyo]

well if the REN was ported and rebuilt to fit a turbo I think it would be way better than the 13B, just my thoughts though

personally I think they should just make a 2rotor but make the rotors like 1.5 times bigger, I think that'll give you more down low and a full power range, what do you all think?

EDIT: by bigger I mean in width say go from |____| to |______| not that this is any kind of measurement but its an example of 1.5 times wider

[[email protected]]

... or you can run the friggin thing on a liquid oxygen/hydrogen mix.


j/k

[flex339]

Well I've read that the rotary already suffers a bit on V.E. because of the combustion chambers beening to big. That is also why the engine has two spark plugs per rotor. The flame front loses momentum as it has to fill the chamber before even pushing the rotor to gain power. Another spark plug may help a little in that situation, but I'd like to see a direct injection ceramic rotary engine. Now that would take the cake

[Monster7]

Comparing a Renesis to a 20b is like comparing a v12 to a v8.

The person who said the Renesis doesn't respond well to turbocharging, you are dead wrong.

The person who said "i often wonder about the reliability of the 20b swap, what's the point of having an awesome car if you have to tear it down after every other run?"If you know someone who tears down their 20b after every other run, they are making WAY over 1000hp, or tuned/had the car tuned by a complete putz.

Go to zeroyon.com and e-mail Chris. He's had a 20b in his FD for a while now. Good luck.

nopistons.com
rx7club.com

[89Turbo944]

Monster7 please tell me why the REN is good for turbocharging. Provide me with info proving this wrong.

It has been proved time and time again that turbochraging a NA rotarie engine with stock internals will lead to its enevitable death.

I have seen a couple REN's that have been turboed in Vancouver and they have some serious issues. So i may be wrong but from what i have seen the car is not very well suited to turbocharging.

Dont worrie all Mazda is making a new RX7, but no one knows when.

[Monster7]

It wasn't a big deal to me that people were turbocharging the RX8 with success, therefor I'll have to dig up the people/articles.

ANY NA vehicle will have a short lifespan on boost if the tuning involved is poor or mediocre.

The "new RX-7" was supposed to make an appearence at this years Tokyo Auto Salon. Did it? No.

I've had a long day, sorry for the bluntness.

[AeroE]

Originally Posted by Monster7

Comparing a Renesis to a 20b is like comparing a v12 to a v8.

comparing the REN to the 20B IS like comparing a v-8 to a v-12. the 12 will weigh an insane amount more, destroying your handling ability and throwing your balance way outta wack. the 12 will suck down so much gas you'll have to fill up at every stop light. so ya, i agree completly. when i said taking everything into account, i ment everything. not just hp.

how long will the 20B last in comparison to a lightly/moderatly modded REN? any ideas?

how much more does the 20B weigh than the REN?

With all the hp that the 20B is pushing out, is there any way to keep your 7 attached the ground, or are you just going to spin until 4th gear after every stoplight? you know, and i hate to say this, there is such a thing as too much horsepower. if you can't corner, or keep your tires from breaking loose every time you look at the pedal, then you've just wasted your money. having a 3 rotor rx7 would be awesome, but i would much rather have "practical" power, something that i can drag AND track race with.

(just a side note, what is the FD's lateral g rating??)

[Monster7]

Everything you said is baseless.

Do you have any idea how much weight a 20b adds to the FD chassis? Not nearly as much as you think.

If you have a reputable shop install the 20b does it "throw off your handling ability?" NO

What does the FD pull on a 600ft s.p? Depending on what magazine you get your information from, mid .90's.

Anything else?

[AeroE]

Before you jump on me so hard about being baseless you might wanna find something to base your info on. but before you start giving me numbers and websites i think 89Turbo944 asked you to back up your comments a several posts ago.