| [ Total Views: 1857 | Total Replies: 13 | Thread Id: 69593 ] |
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 ttriebler
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| posted on June 3rd, 2008 at 08:39 PM |
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12A or 13B or Both!!??
nope not possible. 13b rotor housings have the same dimensions as 12a rotor housings but are wider. So you have to use 12a rotors with 12a housings or
13b rotors with 13b housings. The endplates and intermediate plates are the same.
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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brendo_83
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| posted on June 5th, 2008 at 01:04 PM |
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Can I ask why you are so keen to go for a 13b?
it doesn't take much to make a 12a go just as hard, while staying nice and legal.
more capacity is not always better, (kinda the whole point of a rotary)
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Zealot
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| posted on June 5th, 2008 at 03:52 PM |
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| Quote: | Originally
posted by brendo_83
Can I ask why you are so keen to go for a 13b?
it doesn't take much to make a 12a go just as hard, while staying nice and legal.
more capacity is not always better, (kinda the whole point of a rotary)
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I figured that the 13b is more powerful therefore has more potential.plus its newer 
or can i bore a 12a out to the legal limit???? |
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ttriebler
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| posted on June 5th, 2008 at 08:45 PM |
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You can't "bore out" a 12a - it's a rotary, not a piston engine. Google it and you'll see some diagrams of how rotary motors work and you'll see
exactly why it can't be done. It doesn't have holes and pistons like a normal motor.
You could easily get yourself a factory 12a turbo motor (they come fitted with a hitachi turbo, plenum, injectors etc) and run an aftermarket efi
computer, intercooler and make TONS of power with it.
I've had two 12a turbo motors in previous cars, one an extend port with factory turbo, no intercooler and stock ECU and the other one with an
aftermarket efi system and adjustable boost. I can tell you that in my rx3 coupe weighing 910kgs it spun the 235 back tyres (locked diff) in 1st, 2nd,
3rd, 4th and chirped into 5th. and that was non-intercooled.
You could make as much power as you want with big injectors, intercooling and a bigger turbo - way more power than ever needed to drag off virtually
any car.
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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Zealot
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| posted on June 5th, 2008 at 09:26 PM |
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| Quote: | Originally
posted by ttriebler
You can't "bore out" a 12a - it's a rotary, not a piston engine. Google it and you'll see some diagrams of how rotary motors work and you'll see
exactly why it can't be done. It doesn't have holes and pistons like a normal motor.
You could easily get yourself a factory 12a turbo motor (they come fitted with a hitachi turbo, plenum, injectors etc) and run an aftermarket efi
computer, intercooler and make TONS of power with it.
I've had two 12a turbo motors in previous cars, one an extend port with factory turbo, no intercooler and stock ECU and the other one with an
aftermarket efi system and adjustable boost. I can tell you that in my rx3 coupe weighing 910kgs it spun the 235 back tyres (locked diff) in 1st, 2nd,
3rd, 4th and chirped into 5th. and that was non-intercooled.
You could make as much power as you want with big injectors, intercooling and a bigger turbo - way more power than ever needed to drag off virtually
any car.
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Can it put out more power than a EJ20 turbo????.... I dont think the new laws allow you to put a 12A turbo into it cause it weighs to little.
Can i install an efi system intercool it and not turbo it????? |
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1303Steve
A.k.a.: Steve Carter
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| posted on June 5th, 2008 at 11:24 PM |
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| Quote: | Originally
posted by ttriebler You could easily get yourself a factory 12a turbo motor
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Hi
The largest capacity forced induction motor he can run is,
820 kg x 2.5 = 2050 or
870 kg x 2.5 = 2175.
Steve
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Mick058
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| posted on June 6th, 2008 at 11:57 AM |
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12a and bridge port, you'll have lots of fun....especially with the cooling.
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ttriebler
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| posted on June 7th, 2008 at 12:35 PM |
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looks like you can't fit a 12a turbo or 13b turbo legally due to the weight of the vehicle.
So you could go bridgeport or peripheral port but cooling is a tough one, noise is out of control and they are pretty grumpy motors that don't idle
real well.
Go for the EJ20T out of a WRX - easy to bolt up to your gearbox, as much power as you like and legal. PLenty of em around.
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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THUDKNUCKLE
A.k.a.: James Stoodley
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| posted on June 9th, 2008 at 10:36 AM |
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from my experiance with the rotary scene 13b standard would be the best choice . or a 13b with a large extended port if you want more power. if you go
a 12a i definitley would not be goin peripheral port as you will chew through more fuel then a blown v8 the car will not be at all drivable and you
will only be getting perofmance when you ring its neck , i have driven a pp 13b in an rx2 berfore and it would be rediculous to be cruising around
the streets in something like this ( not fun)
bridge port would be the biggest i would look at goin but even then you are goin to be loosing a lot of low down power and drivability not to mention
the trouble you will have keeping it quiet enough for the road and fuel bills
i run a 13b large entended port injected rotary with upgraded series 5 injection and turbo housings ( better exhaust port) and i struggled to keep the
car at a resonable noise level using 2 inline rotary specific baffles and a staliness cat. its still way over the legal limit but its the best i could
do ( idle is just on legal db readings) with limitited room in the engine bay. so goin a bigger port on a non turbo engine would provide queit a few
problems.
rotaries are an awsome and fun motor but i will agree that they are probly not the most practicle engine conversion for a vw hence my new baja is
moving away from my daily rotary driven baja and will use a 2lt turbo instead even though i absolutley love the rotaries,
Love is a Rotary baja bug
Just be carefull  ,, something dangerous is lurkin in My garage
ready to burst out in a fit of Big Hp, high boost baja Rage .
http://groups.msn.com/GottaVW |
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 helbus
A.k.a.: Pete S
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| posted on June 9th, 2008 at 06:00 PM |
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In my personal opinion rotaries belong in RX series Mazda's. Go sick
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lulu94
A.k.a.: Danielle
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| posted on June 12th, 2008 at 10:25 PM |
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so if everyone keeps trying rotaries in VWs and doesnt like them, why the hell cant I find an adapter kit secondhand anywhere??
I missed the original post. even thopugh I probably could have answered whatever you needed to know.
1968 pearl white beetle:kiss
1600 engine 
soon to be supercharged 
1970 and 72 Squarebacks 70 soon to be rotor powered |
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THUDKNUCKLE
A.k.a.: James Stoodley
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| posted on June 13th, 2008 at 05:51 PM |
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they are really an awsome motor dont get me wrong didnt mean anything like that but porting wise i dont think bigger is better in a road driven car (
i still love my rotor baja , i am in love with the sound just time for something a little bit less harsh and some more performance)
Love is a Rotary baja bug
Just be carefull ,, something dangerous is lurkin in My garage
ready to burst out in a fit of Big Hp, high boost baja Rage .
http://groups.msn.com/GottaVW |
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mackaymanx
A.k.a.: Brent
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| posted on June 13th, 2008 at 06:07 PM |
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lulu94 if your looking for an adapter kit try
Wilson V W Services
Paul N Wilson
40 Main St Bakers Creek (Flat) 4615
(07) 4952 1761
He had one about a month back complete with the motor.
Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."
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13BVW
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| posted on June 14th, 2008 at 05:39 PM |
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I got a spare adapter
Rotories in vw's are awsome
13BVW 11.80@114mph
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