Don´t know about the pistons you have. But I have 6.5:1 In a Grp A engine. I think Its no problem to have higher ratio. But 8.5:1 Is not easy when you use old ignition and k-jetronic. If you have 8.5:1 pistons you can modify the head for lower comp. If you made new pistons. Manufacture them larger t...

http://www.sellholm.se/article.asp?pid= ... &agd=Slutväxlar

More stuff

Parts you need

6.5 piston

Bowl 70 mm * 9,5 mm
33.7 cm3

You can only use historically correct turbos.

Something like this

http://www.apracing.com/info/products.a ... +_2888_857

Old style.

Niklas

Hallo 900works had a new build S&R helical gearbox here In sweden. The picture above is early S&R gearset. The late ones have less "dogs" and wider gears and large cluser bearings. If you change the 1st gear then you have to make everything new for the rewerse. And only a gearset I...

That sounds great.It sounds more reliable than the old 99 gearbox.

Do you have orginal pinion bearing crush sleeve ?
Orginal shift components ? ( finger, fork, axle).

Niklas

Hallo

I searched the forum about Lukes gearbox In his Turbo rally car.
I know Its the new OG900 5 speed. But not so much more.

What have you done to the gearbox. Do you have/had any problems ?

Niklas

Sweden

Yes theres a couple of manufactures in England.

I have made a recuest.

But you need some drawings, or "and maybe" a gearset to copy.
Almost every manufacture have a minimum order of 10 sets.

Thats pretty much for a private buyer.

Niklas

Hallo

Sorry about the copies Roger.

Roger Uffege speedparts, thats rogers gearset.

I never heard about any copies.


There Is a manaufacture In England that can make a copy of the S&R gearset for about 1800 £ each if you order 10 sets.

Niklas

JK gearset was secret, but It was a speedparts gearbox.

Jk bought It directly from the manufacture Uffege.

The 10 set Is the price I got for a replica.

I think Luke can talk to Uffege and make the modes In USA on the gear housing.

Nklas

The JK box could be bought from the gearbox builder. Its to much money to play on the street. Thats the reason why we not use the special gearbox from Ludde or speedpart here in sweden. The speedpart box don´t fit in a orginal gearbox. So Its pretty expensive to send the gearbox world wide. Ludde ge...

nothing work whit high power....

Niklas

Its 2 saab 900, one rally and the other one Is a rallycross car Shell sticker on the hood.

Then you have a new 99 rally car replica.

Builder and owner Norstedt.

Niklas