Author Topic: Rotary engines in other manufacturers gearbox  (Read 4700 times)

Offline re japi

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Rotary engines in other manufacturers gearbox
« Reply #15 on: May 14, 2011, 04:20:00 AM »
Ok... Thanks for the info, again. :)

My friend is still thinking his options. Not sure what gearbox to use. His Volvo heavyduty gearbox is good, its basicly impossible to break. Unfortunatly its soooo heavy lump... :)
Power is nothing without control. Weight is enemy of performance, handling and braking.

http://s1293.photobucket.com/user/japi_laukkanen/library/Japi?sort=3&page=1

Offline kiwimazda

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Offline RotorHeid

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Rotary engines in other manufacturers gearbox
« Reply #17 on: May 14, 2011, 07:57:19 AM »
Quote from: re japi;762429
Ok... Thanks for the info, again. :)

My friend is still thinking his options. Not sure what gearbox to use. His Volvo heavyduty gearbox is good, its basicly impossible to break. Unfortunatly its soooo heavy lump... :)


if that\'s from me, look around you and what\'s most common gearbox out there and use it.
 eg, in Uk, common gearbox was Ford Type9 , buy a quaife gearset etccc for it.
Volvo box will be the best opinion for you,  is that\'s matter for a wee kg more.
if the winner car got heavy box, there you go and buy the same as winner car.
;)

Offline RotorHeid

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Rotary engines in other manufacturers gearbox
« Reply #18 on: May 14, 2011, 08:16:32 AM »
Quote from: PhillipM;762276
It would be yes - there\'s a couple of GT40-reps out there putting 600 horsepower through even it\'s smaller UN1 variant (from the renault 21 turbo, etc) on slicks. But you\'d want a ratio change as 1st would be far too low with the little tyres on those.
 Even we never use 1st gear with 30" diameter tyres, just drop the clutch in second at the minute. (260+ horsies and 900kg with fluids and driver/co-driver onboard, so you\'d probably end up doing the same on a standard \'box with a ~400/500kg car on slicks)

However, you have to bear in mind they\'re old \'boxes now and they\'ve all had some syncro abuse by \'white van man\', not a problem if you switch to dogs though.
  The other problem is I would think it\'d probably be a bit too heavy for a competitive hillclimb machine unless it was pushing silly power and needed the strength without paying out for a top end sequential unit.


cheers,
Got a bike engined single seater, GSXR-1100WT 180HP, it\'s quite quick and the problem with it is  " Piston engine".( love rotary more than piston)
13B engine was easily installed in the back into the engine bay with hexland gearbox.
you\'re right about the weight, my SS\'s weight\'s approx 320-350Kg and that\'s light.
 friend\'s SS  weighted  206kg( same engine as mine\'s a 1100WT) with carbon tub body.
I\'m going back to US soon and visited friends who got a star mazda race car and will have a lookey..

Offline PhillipM

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Rotary engines in other manufacturers gearbox
« Reply #19 on: May 14, 2011, 09:20:11 AM »
Quote from: kiwimazda;762432
I knew I had it somewhere
http://www.nfauto.co.uk/options.htm
http://www.bremarauto.com/products/subaru-2wd-conversion-kit/

Hmm, not sure about that first link, I would have said the UN5 was a damned sight stronger than the UN1 is, even though they\'re based off the same architecture.

Offline kiwimazda

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Rotary engines in other manufacturers gearbox
« Reply #20 on: May 14, 2011, 09:37:46 AM »
It was just something I found when I was looking at building a MNR LMP kit car.

Offline re japi

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Rotary engines in other manufacturers gearbox
« Reply #21 on: May 14, 2011, 05:49:15 PM »
Quote from: RotorHeid;762441
if that\'s from me, look around you and what\'s most common gearbox out there and use it.
 eg, in Uk, common gearbox was Ford Type9 , buy a quaife gearset etccc for it.
Volvo box will be the best opinion for you,  is that\'s matter for a wee kg more.
if the winner car got heavy box, there you go and buy the same as winner car.
;)


Ya, there is that problem. Most common gearboxes here wont take that kind of beating or dont have enough gear ration options. :)

That Volvo box is amazing. But in next season my friends car is(hopefully) with rotary engine. And moving/shaving weight is must important thing. At the moment he is racing with Opel 2.0 L 16 valve engine, so when he swamps rotary in, weight should drop about 30-40 kg. And that weight has to be moved so cars balance will be in optimum.

He races with Lada 2107 against Toyota MR2´s. So no gearbox match there. :) MR2`2 are most common and "car to beat" in rallycross here.

Btw, today was the first race of the season. And only thing that hasnt been changed from last season, breaked... :( In practise... MSD ignition box... Bad luck, but thats racing...
Power is nothing without control. Weight is enemy of performance, handling and braking.

http://s1293.photobucket.com/user/japi_laukkanen/library/Japi?sort=3&page=1

Offline RotorHeid

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Rotary engines in other manufacturers gearbox
« Reply #22 on: May 14, 2011, 07:13:59 PM »
can you give the detail of Volvo gear ratio number please.
e.g First Gear 3.??, second gear, 2.?? third 2.??, so on

Offline re japi

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Rotary engines in other manufacturers gearbox
« Reply #23 on: May 16, 2011, 05:29:37 AM »
I´ll ask...

Btw, kiwimazda, those links you sent was great :)
Power is nothing without control. Weight is enemy of performance, handling and braking.

http://s1293.photobucket.com/user/japi_laukkanen/library/Japi?sort=3&page=1

Offline 600gaz

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Rotary engines in other manufacturers gearbox
« Reply #24 on: November 21, 2011, 07:24:36 PM »
Quote from: PhillipM;758150
Renault Master gearbox in ours.
Hi Phillp , i need to join my rotary engine to a Renault UN1 transaxle from a 21 turbo so any contacts or info on who/how you did yours would be cool . Cheers . :)

Offline PhillipM

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Rotary engines in other manufacturers gearbox
« Reply #25 on: November 21, 2011, 08:36:51 PM »
Just made a steel adaptor plate, mated the counterweight from an auto to the back of a 200mm forged chromoly flywheel (aircooled vw) + clutch setup (already had those), and pressed in the right spigot bearing, on the UN5 it pretty much lines up with a ~20mm spacer in between the engine/bellhousing.

Offline 600gaz

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Rotary engines in other manufacturers gearbox
« Reply #26 on: November 21, 2011, 11:04:49 PM »
Cheers for the info . I\'m going to dig the gearbox out this weekend and  take a look so will get back to you most likely . :)