1994 toyota supra vs. 1993 mazda rx7

[drftk1d]

the trade-off is the weight of the vehicle.

thats why a 500hp rx7 could beat a 600hp supra.

the supra motor is a monster, i'm not doubting that. but consider the weight difference between a 2jz-gte and a 13b. A 2jz weighs about the same as a cast iron v8 (with turbos and shit). Its obvious that a 2jz can make more ultimate power in the end.

[tubjub]

yeah, you're right... there's no mystery to power vs. weight. you want a thrill ride a 150hp crotch rocket... lol

anywho, i really question 1000hp on a 13b... there's just not enough displacement. a 20b i could understand, sure.

there's a series of videos from down under called "high octane" ...
in one video there is a guy with a 1200hp 20b, and that's bridge-ported, MASSIVE turbo, i don't know the inner workings of the engine but they'res no replacement for displacemet, same goes for anything.

in my own personal experience i've seen 700hp 13b's, but that's about it. just for my own reference i'd like to see a 13b with more than 700 actual hp.

and another thing, what is a 26b ? a cobbed up e-shaft welded together quad rotor ? sounds like junk to me...

read the signature.

[Soyo]

Originally Posted by tubjub

and another thing, what is a 26b ? a cobbed up e-shaft welded together quad rotor ? sounds like junk to me...

if junk wins the le mans, then I would have to agree...

http://www.mulsannescorner.com/mazdar26b.html

http://www.scuderiaciriani.com/rx7/787B/

http://www.monito.com/wankel/lemans.html

[BlindspottNZ]

yes figures are pretty useless, i would imagine the supra would have more traction issues then the FD but ill have to find some stock circuit/drag times

[BlindspottNZ]

Ok i did a really quick search of the most powerful 13Bs in australia, and im not sure if these figures are even up to date but i think that the most powerful one is making 940RWHP

This engine here (running in a datsun with the plate AVENGE) makes (or made at the time) 930RWHP






Theres a RX3 over here called [EAT.20B] which is now running in the 7's (i have a niice video of it ) which i think might have even more power then these two others. There are plenty of fasties around here tho

[tubjub]

well that's awesome, never seen a 13b THAT powerful...

and to "junk" i referred to earlier,

the motor you are referring to, that's a whole DIFFERENT engine.... quad rotor from the ground up... Producing over 700 hp the R26B quad rotor engine was peripherally ported and incorporated steeples variable induction plus three plugs per rotor (instead of the usual two). and, naturally aspirated i might add.

that's not even comparable... lol c'mon now. you try finding one of those engines.

i have seen guys that weld e-shafts together and essentially make two 13b's or a "26b" but that's just not the same in my opinion.

[drftk1d]

no welding two e shafts togehter (which btw is impossible without cutting then) is a stupid idea, so they reforge a whole new e-shaft there are shops in australia and a shop in japan called Scoot who made their own custom 4 rotor engine. Scoot's uses the rotors and houseings from a 12a and a newly forged e-shaft.

displacement is not the only factor in determinning ultimate horsepower. Explain how F1 engines in the past made over 1000hp on a 1.5L piston motor? Why then is it so impossible on a rotary motor of similar displacement (and you can argue more if you'd like)

[tubjub]

alright, i see what ur saying... but honestly, can any of us afford the bankroll to pull 1000hp from such little displacement ?

hell money makes anything possible, but cubic inches really help things... lol

i'm just speaking in terms of practicality, not wishful or dreamy.

and i know this is the wrong place to say this, but nascar has been pulling 800-900hp at 10,000rpm out of a small-block chevy or dodge engine for years, no more than about 360 cubic inches in displacement, at a cost of what ... $50k ? Maybe ? Maybe more ? i don't know about ya'll but i can't afford $50 for a car much less an engine...





just my $.02

[Soyo]

for $50,000 you could get a 26B into an rx-7 and have a little change to spare so I don't see what is so special about nascar cars

[D3rELiC]

Originally Posted by drftk1d

displacement is not the only factor in determinning ultimate horsepower. Explain how F1 engines in the past made over 1000hp on a 1.5L piston motor? Why then is it so impossible on a rotary motor of similar displacement (and you can argue more if you'd like)

they were running 4 bar of boost in qualifying form, thats why these 4 bangers were making 1400 hp

[drftk1d]

Originally Posted by tubjub

alright, i see what ur saying... but honestly, can any of us afford the bankroll to pull 1000hp from such little displacement ?

hell money makes anything possible, but cubic inches really help things... lol

i'm just speaking in terms of practicality, not wishful or dreamy.

and i know this is the wrong place to say this, but nascar has been pulling 800-900hp at 10,000rpm out of a small-block chevy or dodge engine for years, no more than about 360 cubic inches in displacement, at a cost of what ... $50k ? Maybe ? Maybe more ? i don't know about ya'll but i can't afford $50 for a car much less an engine...





just my $.02

i dont see your point. it takes money to go fast always.

[tubjub]

my point is ... can anybody in here afford a $50,000 engine ? I know I can't...

some speak of terms that are hardly realistic. I don't know of anybody that can afford a 20b let alone a r26b. Maybe you guys are rich and i'm a fuckin broke ass, but ...

and if it really came down to it, i think i'd be putting that $50g's towards something more important than an engine for my car...


again, just my $.02

[Soyo]

you brought up the nascar thing which costs $50,000 so I simply said I could do better with that $50k...

plus we all know that any race engine like that will need more money than that to use very much because they aren't made to be reliable so you would need another large chunk of money to be able to use it more than a few times

either way I'll take a rotary any day