Gerbraldy

Hey guys, long time rx7 owner, wanna be rx8 owner. Can you guys give me some info on why it's called a Renesis. Like what is the difference between the old 13b's and this new one. I am about to swap a 13bt into my vert and am thinking about selling it to put a downpayment on an rx8. Please don't flame, just want to know what advantages and disadvantages that new 13b has..

Thanks, Tony

Dan H

The Renesis is the newest evolution of the rotary engine. It has side exhaust ports compared to the peripheral exhaust ports of the earlier 13B's as on all of the RX7's.

bowman

Rotary Genesis.

See here: http://www.mme-press.com/doc/renesis.zip

RXE16T

The Renesis is the evolution of the original 13B..... just look how much power they have managed to squeeze out of the thing without forced induction.

Correct me if I'm wrong, but the Renesis has a higher Hp output then the first 13B-REW.
Evolution has come a long way.

Dan H

The 13B-REW is a turbocharged rotary and made 255 horses along with around 225lbs of torque.

But yes, the Renesis is the highest output NA rotary that made it into production for passenger cars.

RXE16T

Hmmmm.... I suppose you guys overseas got more power than we did here in Australia because the first FD with the 13B-REW pumped out 175kw whereas our 8 was released with 177kw.

I suppose somewhere along the line with continual development, the NA Renesis should generate over 200Kw..... afterall, it's constant evolution isn't it?

iridearocket

The Rx7 turbocharged will easily beat the pants off the 8. The 8 is a great engine for normal aspiration, but the lack of torque compared to the 7's engine makes it about 1 second slower in the Q mile. The 8 is fast, but it doesn't feel that fast becuase it is so smooth. Gas mileage is bad, but I heard the 7 is bad as well.

RXE16T

Bad is an understatement..... fuel consumption is crap with the FD, but it was worse with the FC.... so one can only look forward to it improving on the 8.

bowman

The 13REW was rated at 255hp, the Renesis (originally) at 250hp. That's pretty good for the Renesis when you consider that the 13REW is a twin turbo. The side ports of the Renesis also provide for better emissions.

(And no one is silly enough to compare the RX-8 against an FD.)

RotorManiac

have in mind that they solved the 'ovellap' problem too with the renesis engine.
that was a big problem for the 7s, from what I read.

Rotary Engine geNESIS = RENESIS

Dan H

I would say gas mileage is about the same with FC TII's and FD's.

RX Renesis

according to car reviews.... the gas milage int he 8 is a big improvement over the 7... like a large improvment but from what i see no big of a difference...

Blue87Sport

I get about the same mileage (within 1 mpg) in my 8 as I did in my 87 RX-7 Sport (Normally aspirated). Considering the 8 makes a lot more power and weight a lot more than the 7, I think that shows the remarkable advances in rotary engine technology since the 13B.

Rick

My 94 Fd gets better Freeway mpg than my 04 8. The FD gets about 25 mpg @ 75 mph & the 8 gets about 22 mpg @ 75 mph.

ShadowX

Just wanted to make a note on the whole gas mileage statement...
My FC TII get's better gas mileage than the 8. I average 20 MPG, but I've gotten 25 when I was driving cross country. The RX8 constistanly get 20 MPG.

m477

RENESIS = 13b-MSPRE. "Renesis" is just a fancy new name for an engine that has been around for awhile--Mazda originally intended to sell a car with a side-port rotary in the mid/late 90's based on the RX-01 concept car, but Ford pulled the plug on that project.

Gerbraldy

kool, so I should tear apart that motor and throw some 9.1 rotors in there to turbo charge it. I've heard that their slow, the automatics only have 198hp. I'm just gonna get a pulsar GTiR, 92' for $8500us Shipped and legalized to america. That bitch will beat a rx7,rx8,and an r33 gtr.

RXE16T

RX7 - maybe
RX8 - definitely
GTR - dreaming

MyRxBad

iTrader: (1)

It surprises me that you seem to know quite a bit about rx-7's including all the technical names of the engines but you don't know why the newest rotary is called a Renesis?!?
You either hid under a rock when the Renesis engine was put in the Rx-01 and then used in the Rx-8 production car or your a troll whose regurgitating material found elsewhere.

Gerbraldy

I know that it was called a Renesis, just didn't know why, didn't care really because of the low low power. They look cool, but for how much they cost it makes them suck. See, it doesn't really matter if it's new or not, it's not good for boost so it's not my style. You would have to tear that motor apart the turbo it, and that will probably void the warranty IF it had one. But, my friend lives in Canada and imports cars and leagalized them for america. Sorry, but I can get a 90' skyline gtst for $6500 shipped and leagalized to america. FD is 12k, FC is 8k, Pulsar GTiR is $8500, 13.4 1/4 stock. New rx8club member, long time rx7club member. And the only skyline GTR that a pulsar won't beat stock is an R32 GTR 13.2 1/4, I know my nissans better than you nojooc, have you ever driven a skyline, no didn't think so.......

Icemastr

Huh? R32GTR doesnt run a 13.2, the R33 and R34 were both baster than the R32 in 1/4 mile times as they have quite a bit more power than advertised. You don't have to tear the RX-8 motor apart to boost it, nor is it quite as simple as just swapping to lower compression rotors. Thats nice that your friend can import a car to Canada, just about any can do that. Have fun when the US Customs finds out and takes your car and crushes it. Just because you can import such a year car into Canada does not mean you can drive it into the USA and have it legally. Man you got lucky, glad it worked out in the end.

RXE16T

FYI, I've owned a S14 200SX and all my mates have owned S13, S14, S15, R32 and R33's, so don't even begin to preach to me about how you know more about Nissans.

As far as I am concerned, the GTR (besides the R390GT1) is the fastest road going stock Nissan.

Your GtiR was a quick car designed by Nissan to tackle the WRC in the early 90's.
It failed miserably due it being unable to keep its underbonnet temperatures under control.

The motor is a SR20DET (2.0L 4Cyl with single turbo) with quad throttle bodies and using the same ATTESSA awd system as the GTR, it pumped out about 175kw stock.

The GTR is a RB26DETT (2.6L straight six with twin turbos) with 6 throttle bodies and ATTESSA awd, it pumped out a quoted 206kw stock.

You're on drugs if you think you can smoke a GTR with your GTiR stock for stock.
You won't be able to convincingly beat an R32 GTS4, let alone any GTR. :p

BTW, you don't even know what a GTS4 is without doing a Google search, do you?
FYI, it was released in the R32 series and was powered by an RB20DET (2.0L straight six single turbo) with ATTESSA awd.

Have I demonstrated enough Nissan "knowledge" for your liking or should I continue, you Troll?

We don't need clowns like you here on this forum, go back and hide under what ever rock you crawled out from.
Get out of here before you get OWNED.

takahashi

Well said nojooc

What consistute fast in a car...?

I am very different in this with you I think... Pulsar boy. I want something that turns.

You can tune a R32 to 600ps plus. But the car can only do well in drags. If going straight is good enough for you. Good on you. Buy yourself a top fuel methanol powered funny car!

I am sorry that RX-8 does not have more power than my friend's 600ps circuit tuned R34 GTR. But I can at least see its tails in the main straight. Doubt your 600ps plus Pulsar can do that. Good luck though.

BTW: I think you have done with your opinion and this thread is not worth continuing.

RotorManiac

^speak of the truth^

Icemastr

There are circuit Skyline GTR's pushing that much HP that take corners quite well. Ever seen JGTC? I think they are pushing a little bit of HP :D not quite 600 though.