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> 914 tranny??
Dairdevil9
post Oct 28 2004, 10:41 PM
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Hello,
Sorry guys but im an intruder on your site. I own a 1970 VW Dune buggy that im currently building/restoring. I bought a Rotary 13B-RE (rare Japan only out of a Mazda Cosmo) Twin turbo motor with guestimated hp output from 350-450 after im done with it and I am shopping around for different transmission options. allot of us VW guys have gone with Porsche 914 and other Porsche trannys but I figured if I wanted real 914 tranny info I better go to the guys that really know them the best. So im sorry for invading your forum with these questions but it’s really a complement. I wanted to know if you guys knew the limits on the 914 tranny? What is the max HP they can take? I read that they can handle 300HP stock but??? I also read that some people with built motors were busting the first gears/ and that the first gear wasn’t even used with the v-8 conversion because of the torque characteristics??? How reliable have they been for you guys with big HP?? and my last question is, if its true that the stock 914 tranny can only handle 300HP and im going to have more than that, does anyone know what it takes and how much it costs to open one up/beef it up?

Thanks for your patience and help.
Brad.
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skline
post Oct 28 2004, 10:45 PM
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You would be better off to find a tranny from a 930 or even a G50. The 914 gearbox wont last you very long. If you are going to go strong, you better make the whole driveline strong too. Good luck and welcome to the club.
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skline
post Oct 28 2004, 10:46 PM
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Also, are you running the engine behind the trans or in front of it? Why would you need a 914 trans?
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Dairdevil9
post Oct 28 2004, 11:33 PM
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the motor will be running behind the trans. and im asking about the 914 because a lot of the vw guys are using them. but i heard they needed to be swaped around?? ive heard about the G50, do you know anything about them? would they work for my project and HP
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skline
post Oct 28 2004, 11:36 PM
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Absolutely, the G50 would be your best best. The 930 would be the second best. Neither of them would require you to flip the ring and pinion. The 930 is only a 4 speed however as the G50 is a 6 speed. Both will handle what you want to run.
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Aaron Cox
post Oct 28 2004, 11:37 PM
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why not the 914 scott? the rotories have NO torque...

a 915 would be a cheaper alternative thn the 930/g50
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skline
post Oct 28 2004, 11:37 PM
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Oh, The G50 in ready to go condition is going to cost you between 4 and 8 grand, the 930 you could pick up for around 2500 to 3500. They would both handle what you want to do in stock condition.
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skline
post Oct 28 2004, 11:39 PM
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QUOTE(acox914 @ Oct 28 2004, 10:37 PM)
why not the 914 scott? the rotories have NO torque...

a 915 would be a cheaper alternative thn the 930/g50

Read the horsepower he is talking about. The 915 would work but it may not handle the power he is talking about running
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Dairdevil9
post Oct 28 2004, 11:39 PM
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now im a porsche idiot so i apologize ahead of time for the stupid question. is the G50 a porsche car model or the name of the trany? and what year car am i looking for? and how available and expensive are they?
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Aaron Cox
post Oct 28 2004, 11:40 PM
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QUOTE(skline @ Oct 28 2004, 10:39 PM)
QUOTE(acox914 @ Oct 28 2004, 10:37 PM)
why not the 914 scott? the rotories have NO torque...

a 915 would be a cheaper alternative thn the 930/g50

Read the horsepower he is talking about. The 915 would work but it may not handle the power he is talking about running

i read that, but i thought torque ate tranny's not high RPM screamers.
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skline
post Oct 28 2004, 11:43 PM
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QUOTE(Dairdevil9 @ Oct 28 2004, 10:39 PM)
now im a porsche idiot so i apologize ahead of time for the stupid question. is the G50 a porsche car model or the name of the trany? and what year car am i looking for? and how available and expensive are they?

The G50 is the transmission used in some late model Porsches. They can handle up to about 650 HP without modification, I think. In any case, they are available, I had the opportunity to pick one up about a year ago for 850 bucks. I am still kicking my butt for not buying it. The cheapest I have found a 930 trans for was about 2500. That is in ready to go for your application condition. I would have to spend more on it to flip the ring and pinion.
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Dairdevil9
post Oct 28 2004, 11:45 PM
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2500 used? do you know how much mod is needed to couple a G50 to a VW? is the G50 similar to the 914 tranny?
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skline
post Oct 28 2004, 11:47 PM
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Yup! They dont make the 930 transmission anymore. The G50 is the one to use now, they are still current.
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skline
post Oct 28 2004, 11:48 PM
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QUOTE(Dairdevil9 @ Oct 28 2004, 10:45 PM)
2500 used? do you know how much mod is needed to couple a G50 to a VW? is the G50 similar to the 914 tranny?

I thought you were using a Mazda engine? Kennedy would make the adapter for that and the clutch.
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Dairdevil9
post Oct 28 2004, 11:50 PM
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yeah thats not the problem. on the 914 tranny some cutting needs to be done on the rear frame horns in order to fit properly, and some other mods too. but thats the 914, is it pretty close to the G50?
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sgomes
post Oct 28 2004, 11:52 PM
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(IMG:style_emoticons/default/thisthreadisworthlesswithoutpics.gif)

Post some pics of your car/engine/whatever!!! No intrusion at all! (IMG:style_emoticons/default/smilie_pokal.gif)
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Aaron Cox
post Oct 28 2004, 11:53 PM
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QUOTE(Dairdevil9 @ Oct 28 2004, 10:50 PM)
yeah thats not the problem. on the 914 tranny some cutting needs to be done on the rear frame horns in order to fit properly, and some other mods too. but thats the 914, is it pretty close to the G50?

g 50 is like 8 inches longer

BTW thats a WAG estimation
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Dairdevil9
post Oct 28 2004, 11:53 PM
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ill post some pics asap but i gotta findem first
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Dairdevil9
post Oct 28 2004, 11:55 PM
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is the 930 8 inches longer also or is it closer to the size of a 914 tranny? and what HP can the 930 handle?
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skline
post Oct 28 2004, 11:57 PM
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Yeah, post some pictures of what you got with measurments and how much room you have to work with. I have a friend with a sand rail, he runs a type 1 that puts out 360HP on an actual type 1 case. That is the only thing that is stock. The heads on his engine were almost 5k. To me, it just seems like a waste for something you can only drive in nice weather and on weekends.
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