Search found 6 matches

by rossogtv
Fri May 15, 2009 4:41 am
Forum: Race Cars and Track preparation
Topic: When should a gearbox have an oil cooler ?
Replies: 99
Views: 46342

Re: When should a gearbox have an oil cooler ?

i was running an Alfa 75 in long distance racing ( 12 and 6 hours ) with almost stock 190 HP 3.0 engine, outboard brakes and exhaust ending by the door, 47% LSD. An oil cooler is needed because temp. vent up to 180 C, and all gear bearings except 5th were damaged after only one race. The bearings ( ...
by rossogtv
Fri Mar 14, 2008 6:15 pm
Forum: Engine
Topic: Balancing factor of the 3.0 12v?
Replies: 69
Views: 39564

greg: v60 from GM i know of are using 50%, of course there are v90 with numbers from 35,2%, 36,6%, 46% and also 50%. I didnt knew that there are more types of v60 from GM, so i assumed you mean that ones...
by rossogtv
Fri Mar 14, 2008 5:51 pm
Forum: Engine
Topic: V6 engine value
Replies: 16
Views: 9405

i am in austria, Vienna, same counts for germany, swiss etc. in italy they are much more expensive...because they are rare there, everything with more then 2.0 liters...
by rossogtv
Fri Mar 14, 2008 5:47 pm
Forum: Engine
Topic: V6 engine value
Replies: 16
Views: 9405

usual a original gtv6 engine brings 200/300 euro when really needed, an original complete 75 3.0 about 300/500, 164 12v 3.0 are cheaper, 100/150, 24v with electronic 500/800. im right now selling a complete 75 3.0 QV 192HP/ motronic, asking 800 eur and i will get it, most people are looking for the ...
by rossogtv
Fri Mar 07, 2008 4:01 am
Forum: Engine
Topic: Balancing factor of the 3.0 12v?
Replies: 69
Views: 39564

to Jim> thanks a lot !!! your info is of priceless value ! regarding the book> i think that there is nobody here, who will NOT buy Jims book anyway. I have a lot of specific engineering literature, where some books cost 5-10 times more like the availlable 4zyl book from Jim. I personally will buy 3-...
by rossogtv
Wed Mar 05, 2008 9:55 am
Forum: Engine
Topic: Balancing factor of the 3.0 12v?
Replies: 69
Views: 39564

Im in the progress of building a racing 3.0 24v engine, im searching for the correct balance factor, for me the mentioned 33,3333% looks wrong: for any V-engines you take at first 100% weight of the rotating mass - thats the lower end of the rod including bearing/bolts. From this its obviously, that...