Seems the TSR engine might well have been the same. My source confirms a 99mm steel crank from the USA was used to build a 2.2 8v. Eurospec? Used to constantly eat clutches for breakfast too...
Thought the write up mentioned some ****e rings they used first off, and was then sorted with total seals? I remember the 99-100mm crank though, thought it could have been an option although the price put the kybosh on that one. You can get 100mm Oettinger cranks too, that have popped up on German ebay from time to time, and not too expensive either.
yes oettinger did an 100 mm crank tsr did some experiment on 2.2 they were 83x99 but that make it a 2142cc described as "really torquey but didnt like to rev it was a lazy person s engine - it would pull in top gear!" the crank became difficult to source they stop making it just for the 2000E modification with 94.5mm crank oettinger restricted the revs at 6500rpm i dont want to imagine how low the 100mm stroke will be
Eurospec 100mm Billet Crank wouldn't go any more than 83.5mm on th bore or you will be asking for trouble and you don't need to got any bigger. i wouldn't go any bigger than a 95.5mm Stroke though.
Guess that's why development ceased and it was only ever offered as an 8v option. 99mm stroke not rev friendly!
Pfft! And to think it was only half an hour ago you were impressed by that Birmingham Superprix car. 8v will rev fine if you use a short stroke small displacement engine. I got the VW big block over square engine.
May indeed be! From what I have seen and heard from those in the know it was a short-lived and unloved offering....
if i remember correctly and it is the same car that you are on about chris then am sure it runs a eurospec crank, i spoke to the original owner of the grey mk2 and i recall thats what he said.
I remember speaking to tim styles 8 years ago about this 2.2 i'm sure he said they where using eurospec cranks which i have been told are crap especially for high boost Nas
The info on this engine is: - Audi 2.0 block - short block => assume 3A or 6A 83mm pistons 140mm rods (hmmm...) Source: Volkswagen Audi Car, May 1994 I've not got to hand the article which gave the actual ccs, but will update if I find it. It's that + the bore which meant the crank dims could be back-calculated to 100mm.
It's all relative Chris... I know a man who uses 99mm stroke cranks in rally engines, and they "rev"! ... tho in fairness, they are 2.5 ltr with 16v's. The thing with all this capacity thing is breathing. If the engine size is increased and the breathing is'nt, the "revability" will be reduced because the "lung" capacity of the engine is restricted. Big capacity engines need to breath (decent induction, big valve heads), or the main gain will be low to mid range torque and little extra peak power.
The factor which will mainly be a worry Of the combination very long stroke / high revs Is piston speed and pistons accelerations Yes a very long stroke engine can revs But for how long? Like said earlier oettinger was limiting there 94.5mm stroke engine To 65000 rpms at this revs the piston speed was already over 20 m/s So taking a 99 mm stroke around 7000 rpm or over Is doable but you got to be ready to replace the pistons more often
