4-Rotor Engine???
#5
spoon!
To my knowledge there's not been a 4-rotor FD until fairly recently when people've started throwing 12A bits together to make 'em.
Although...
I talked to Jim Downing's engine builder when I saw them at the ALMS race at Elkhart Lake. They have an R26B in the car... he offhandedly commented that if you paid Mazda $50K they'd build another one for you.
I can't help but ponder that. No, I don't know exactly how to get it to fit, especially not with the variable intake trumpets, but... dammit, that would be cool. I suspect that if you hammered the firewall a *lot* and used a Hewland in-tunnel box you could have enough length to fit it... passenger footwell might get kinda warm, but oh well.
#6
The Power of 1.3
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Originally posted by Kenku
To my knowledge there's not been a 4-rotor FD until fairly recently when people've started throwing 12A bits together to make 'em.
To my knowledge there's not been a 4-rotor FD until fairly recently when people've started throwing 12A bits together to make 'em.
#7
spoon!
Originally posted by 911GT2
Yup, see here. https://www.rx7club.com/showthread.p...&highlight=26b
Yup, see here. https://www.rx7club.com/showthread.p...&highlight=26b
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#9
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Originally posted by Kenku
Bah, you had to comment on the boring part of my post. Knew about the Scoot car, and can recall one other 12A based 4-rotor car... just don't know if anyone has done them before recently. I don't think so, because there'd be a lot of people fawning over it, but...
Bah, you had to comment on the boring part of my post. Knew about the Scoot car, and can recall one other 12A based 4-rotor car... just don't know if anyone has done them before recently. I don't think so, because there'd be a lot of people fawning over it, but...
#10
spoon!
Originally posted by 911GT2
I was proving your point for you. You should be thanking me
I was proving your point for you. You should be thanking me
I think it could work. Just have to... ah... massage the firewall / trans tunnel with a sledgehammer. And back it with a Hewland or some other tranny that is short enough to put the engine back that far. Could work.
Though "massaging" might be harder than just... oh, I dunno, cutting a hole where the engine has to go and building a new chunk of firewall/tunnel around it. Passenger side might lose quite a bit of footroom... and it might be kind of hot for their feet too... but hey, what price hath fun?
Though the trick would be figuring out how to get the variable length trumpets to fit in the engine bay...
#11
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Yashiro Eng. in Japan makes a 4 rotor WITH a one pc. E shaft !! ( thats the eng in the Scoot FD BTW.. ) i've got pics of the eng on display at a japaneese auto Salon show
#13
spoon!
Originally posted by PPC-Racing
Yashiro Eng. in Japan makes a 4 rotor WITH a one pc. E shaft !! ( thats the eng in the Scoot FD BTW.. ) i've got pics of the eng on display at a japaneese auto Salon show
Yashiro Eng. in Japan makes a 4 rotor WITH a one pc. E shaft !! ( thats the eng in the Scoot FD BTW.. ) i've got pics of the eng on display at a japaneese auto Salon show
#16
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That's been my thought.
My 12A is being rebuilt soon (with a semi-PP setup) and I can't be bothered to pay $160 for an automatic counterweight so I can fit it into a beelte. So I was going to buy a 2nd 12A and join them end-to-end, thus removing the need for the counterweights
With a proper tune-up, this should see around 550-600Bhp
Oh yeah, and it'll be going in the rear of a beetle with a motorbike front
My 12A is being rebuilt soon (with a semi-PP setup) and I can't be bothered to pay $160 for an automatic counterweight so I can fit it into a beelte. So I was going to buy a 2nd 12A and join them end-to-end, thus removing the need for the counterweights
With a proper tune-up, this should see around 550-600Bhp
Oh yeah, and it'll be going in the rear of a beetle with a motorbike front
#18
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I wonder why people are building 12a 4rotor engines instead of 13b 4 rotors. Now I want to buld a 4 rotor
#19
spoon!
Originally posted by PaulC
I wonder why people are building 12a 4rotor engines instead of 13b 4 rotors. Now I want to buld a 4 rotor
I wonder why people are building 12a 4rotor engines instead of 13b 4 rotors. Now I want to buld a 4 rotor
#20
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OK I got the length issue (and the RB26 isnt that long you can fit them in R32 300z's). So what is the biggest stopping point to actually putting together a home grown 26b? the eshaft?
#21
spoon!
Originally posted by PaulC
OK I got the length issue (and the RB26 isnt that long you can fit them in R32 300z's). So what is the biggest stopping point to actually putting together a home grown 26b? the eshaft?
OK I got the length issue (and the RB26 isnt that long you can fit them in R32 300z's). So what is the biggest stopping point to actually putting together a home grown 26b? the eshaft?
Oh... wait. RB26. RB26 is a Nissan I6, R26B is the LeMans type Mazda 4-rotor. Big difference. I'd be really curious to see any R26B squeezed into... actually, pretty much anything. They're rather rare.
Anyhoo. The big barriers are the same as putting together any 4-rotor... e-shaft and the intermediate plates with the stationary gears.
#23
spoon!
Originally posted by QuagmireMan
im sure if it was built, we would MAKE IT FIT, no matter what the cost
im sure if it was built, we would MAKE IT FIT, no matter what the cost
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