Nuffield 460 Turbo

A place for projects, conversions, bitsas etc.......
jusape
Posts: 55
Joined: Mon Apr 02, 2018 1:39 pm
Finland

Re: Nuffield 460 Turbo

Post by jusape » Sat Sep 08, 2018 12:52 pm

Yeah ..... PTO power almoust 387hp and all RPMs I dont taken out, stopped about 3200rpm and engine runs about 3400rpm,
and pump MAX-rpm screw , there is 300-400rpm more to get out, now "not used"
Torque, 941Nm is engine torque.
Boost pressure meters are 4bar/60psi , but I dont know what there is really boost pressure, because those goes ower the scale .....

Litle more RPMs and 4??hp is reality for PTO-shaft, this means at crankshaft power is about 440-470hp , now about 425-445hp .......



jusape
Posts: 55
Joined: Mon Apr 02, 2018 1:39 pm
Finland

Re: Nuffield 460 Turbo

Post by jusape » Sat Sep 08, 2018 7:18 pm

And now clutch are with dual plate system, and 3 and 4th gears are special made, faster what with 10-speed gearbox gears....

Something story ( Finland language ) and pictures of project, about 2-1 week before race..... Last picks at project is 14 hours before race.....

https://konekansa.net/threads/nuffield- ... 1/page-133

jusape
Posts: 55
Joined: Mon Apr 02, 2018 1:39 pm
Finland

Re: Nuffield 460 Turbo

Post by jusape » Sat Oct 27, 2018 9:54 pm

EVO V stage ? So, little some modifications, inj. timing, camsaft modification, more fuel and rpm's, etc, and 500+hp cranksaft power is realiy ?, Means about 425-450 hp PTO power....
Thats maby not possible to get out, and easy, only about 35-65hp more @ pto power from about what now, easy 390hp

Loxley
Posts: 1
Joined: Wed Jan 23, 2019 3:39 am
New Zealand

Re: Nuffield 460 Turbo

Post by Loxley » Tue Feb 12, 2019 3:57 am

Hey Jusape,

A very impressive project! Did you say you're using a modified gearbox (10-speed vs 4-speed stock, or 4-speed but 3rd and 4th gear custom)?

I've got a project in mind that'll use a different prime mover for the Nuffield 460 (2 electric motors, one for the drive and one for PTO,capable of 280Nm at 0 RPM, but geared down 3:1), so am curious to know what a stock gearbox can handle.

Image

jusape
Posts: 55
Joined: Mon Apr 02, 2018 1:39 pm
Finland

Re: Nuffield 460 Turbo

Post by jusape » Thu Feb 14, 2019 1:13 pm

Original 5-speed gearbox, now with special made, faster 3rd and 4th gears, dual-disck driwe clutch, and steel ( 42CrMo4 ? ) flywheel ( weight 39kg, original flywheel 26kg )
3rd gear speed are about same, what original 4th gear speed, litle faster what original 4 gear.

Tractor goes about 30kmh with 3rd gear @3300rpm, 4th about 40kmh and 5th gear about 53kmh, 18.4-34 rear wheels

jusape
Posts: 55
Joined: Mon Apr 02, 2018 1:39 pm
Finland

Re: Nuffield 460 Turbo

Post by jusape » Wed Aug 14, 2019 9:33 pm

Sorry, videos are not english language, 26. may -19 happen little gearbox problems......






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