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-   -   F55/F56 2.5L F56 engine, because 2.0L wasn't enough (https://www.northamericanmotoring.com/forums/f55-f56-hatch-talk-2014/326902-2-5l-f56-engine-because-2-0l-wasnt-enough.html)

Revolution Motor Works May 3, 2018 11:17 AM

2.5L F56 engine, because 2.0L wasn't enough
 
Many people were asking about making real performance parts for the 3rd gen so I jumped in head first as usual. This is the 1st full sleeved big bore F engine stroker in the world........ Keep your eyes peeled for all of the cool parts coming for this monster of a Mini

https://cimg3.ibsrv.net/gimg/www.nor...3f90a93ac5.jpgcustom made ductile iron sleeves capable of 50psi
https://cimg4.ibsrv.net/gimg/www.nor...9e6a1c714f.jpgfresh sleeves and deck, bore and hone yet to complete

vetsvette May 3, 2018 02:17 PM

Just when I thought I had the motor finished......

Now Jan comes up with this. ��
Subscribing to the thread. :popcorn:

GPMini May 3, 2018 08:59 PM

WOW. Cant wait to see what this produces.

njaremka May 4, 2018 03:40 AM

Oh YEAH!!

02fanatic May 4, 2018 04:13 AM

You might think of making it all wheel drive to harness all the power you might end up with! More power is not always a good thing if the chassis & drivetrain can’t handle it! Just sayin....sounds delicious though....good luck!

charrigan May 4, 2018 06:13 AM

cant wait to see the build complete!

camptown May 5, 2018 05:19 PM

:thumbsup:

djtomy May 7, 2018 03:52 PM

That's going to be fun! :popcorn:

Silversled May 7, 2018 05:23 PM

Now we are talking!

cornjuice May 7, 2018 06:54 PM

in b4 '500club'

AndresR May 8, 2018 04:29 PM

Jan,
Any plan to upgrade the torque converter on the 6 speed Auto trans? Or this will be only for manual transmission?

Revolution Motor Works May 8, 2018 04:33 PM


Originally Posted by AndresR (Post 4388858)
Jan,
Any plan to upgrade the torque converter on the 6 speed Auto trans? Or this will be only for manual transmission?

I will be checking into some Auto options once we have finished up the manual testing

CarFreak427 Jan 13, 2020 08:14 AM

Any updates on this? :popcorn:

Yupetc Jan 13, 2020 10:40 AM

I assume you're modifying the dome volume in the heads, changing out rod length, or crank size with this bore? Because you'll just be running very high compression numbers. By calculation for static compression, you'd need to run 91.7mm piston diameter to get 2499cc and that'll put your compression ratio at 13.2. That's going to be one hell of an engine to tune and work against pre-detonation. You'll probably then need to lower your stroke to about 70mm to get 10.0 compression, or 78mm stroke to get 11.0 compression assuming no change in crank nor doing any head work..

Of course there are various other ways to deal with compression ratio, and the VVT in Twin-Powered features are already in place if you can tinker with valve overlap and timing. Kind of an interesting thread to follow. Subscribed.

ST107 Jan 13, 2020 11:57 AM

In for updates

CarFreak427 Jul 27, 2022 10:09 PM

https://cimg8.ibsrv.net/gimg/www.nor...f174df8dde.jpg

Darbys2019MiniJCW Jul 28, 2022 10:01 AM

Is this a 2.0L that has been enlarged?



Originally Posted by Revolution Motor Works (Post 4387504)
Many people were asking about making real performance parts for the 3rd gen so I jumped in head first as usual. This is the 1st full sleeved big bore F engine stroker in the world........ Keep your eyes peeled for all of the cool parts coming for this monster of a Mini

https://cimg3.ibsrv.net/gimg/www.nor...3f90a93ac5.jpgcustom made ductile iron sleeves capable of 50psi
https://cimg4.ibsrv.net/gimg/www.nor...9e6a1c714f.jpgfresh sleeves and deck, bore and hone yet to complete


TVPostSound Jul 28, 2022 10:53 AM

Yeah enlarged bore sleeves, notice the water jackets around the sleeves are now much smaller!!


https://cimg1.ibsrv.net/gimg/www.nor...e197761eff.png

dannieh42 Jan 16, 2025 08:55 AM

What ever became of this project? Did you finish it? Give us an update, please.

Cableaddict Jan 16, 2025 11:21 AM


Originally Posted by AndresR (Post 4388858)
Jan,
Any plan to upgrade the torque converter on the 6 speed Auto trans? Or this will be only for manual transmission?

The stock 8 speed auto can handle the torque of a GP, so that might be a good fit.


Personally, if I was to use this engine, I'd want a dual clutch with paddles.


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