11 replies to this topic

[rymek]

I started to work on my mini 3 years ago and at some point I've made decision to put some more new technology in old 998.
It took me few good months of thinking and designing all parts and after make a deal with JE Pistons and RR rods in USA they came in to my door.

This is what is done up to now.

It has Oselli prepared head 12g295 and 40 dcoe weber on long inlet making around 75hp

And now all will be changed ...

I have made my project to work with high revs and this is how it looks like :

Pistons and made from JE Pistons FSR forgings and spec are:

68mm oversize
27mm deck
18mm pin from JE
1.0 1.2 2.8mm rings XC6800

weight is 172g and with pin and rings instaled 237g

Prepared to work with 6" rods which are custom made also.

 _dsc0001_191.jpg   240.25K   21 downloads
 _dsc0005_977.jpg   267.12K   10 downloads
 _dsc0018_133.jpg   271.57K   7 downloads
 _dsc0015_200.jpg   305.62K   5 downloads
 _dsc0014_162.jpg   335.07K   2 downloads
 _dsc0012_159.jpg   303.92K   4 downloads
 _dsc0008_188.jpg   227.33K   5 downloads
 _dsc0004_171.jpg   240.27K   2 downloads
 _dsc0003_310.jpg   266.62K   4 downloads

998ccm Con rods made by RR in USA from:

Mil Spec Aircraft Quality Double Re-Melt
E4340AQ Chromoly Steel
Fully Machined Billet
Triple Tempered
Surface Peened—Through Hardened
Cryogenically Treated
Balanced +/- 1.0 Gram
ARP 2000 Fasteners
AMPCO 45™ Bushings

6" long
18mm pin
weight 418g and with ARP2000 453g

 _dsc0002_177.jpg   208.82K   9 downloads
 _dsc0008_154.jpg   249.47K   6 downloads
 _dsc0017_137.jpg   211.37K   2 downloads
 _dsc0012_788.jpg   236.99K   5 downloads
 _dsc0010_892.jpg   282.14K   3 downloads
 _dsc0011_172.jpg   305.03K   2 downloads
 _dsc0018_158.jpg   246.47K   10 downloads
 _dsc0019_206.jpg   232.22K   8 downloads
 _dsc0020_173.jpg   219.73K   7 downloads

Edited by rymek, 07 August 2011 - 10:33 PM.

[Tupers]

Those pistons look mental.

[rymek]

That was the idea
Not sure yet how all will perform but at least simulations are quite good

[mike.]

Nice, what about the crank?

[rymek]

still thinking a lot about it (custom made crank), but at the moment will go with race prepared by Shengineering ... not much choise for small bore I think

Edited by rymek, 06 August 2011 - 08:44 PM.

[AndyMiniMad.]

Whats your anticipated red line? Love the shiney bits....a pity you can never see all the expensive stuff when its all built up.

[Guess-Works.com]

still thinking a lot about it (custom made crank), but at the moment will go with race prepared by Shengineering ... not much choise for small bore I think

Try Farndon engineering

http://www.farndon.com/crankshafts.htm

Here's a pic of my 66mm stroke crank, but for big bore..

 36663_105263836191529_100001237382983_31211_7089289_n.jpg   55.34K   23 downloads

[rymek]

I will contact with them and see if they can do it ... thenks for the link

[twrminisport]

whats the Oselli prepared head 12g295 spec?

[Down&Out]

Bloody hell this is madness.

Cant imagine its cheap either, massive kudos to you and i'll be following this.

[chrisj]

Wow!

Loving this so far, good luck, i look forward to more updates.

[dougie1142]

Custom stuff =