| Author | Message | ||
| Steve Magnusson (91tr)
Intermediate Member Username: 91tr Post Number: 2085 Registered: 1-2001 |
Jeff -- It seems to be version related rather than early-late related (i.e., all the US TRs are the same -- 13/51 on the intake). If you still can't see the jpegs in the earlier post send me an email at [email protected] and I'll email them back. | ||
| Phil Hughes (Ferrarifixer)
Junior Member Username: Ferrarifixer Post Number: 138 Registered: 7-2003 |
reading that info, the inlet duration is the same, just the US opens later and closes later by 3 degrees. I'd try to find out the lift too, on 308's I know it's less, but not sure on TR. | ||
| Jeff Green (Carguy)
Member Username: Carguy Post Number: 495 Registered: 10-2002 |
Steve...he said he was looking at an early TR official manual. I don't know the manual catalog number. I am not able to see the pics you posted, would you mind trying again? So at least we know there is a 3 degrees advancement for Euro cars. But to confuse things more, did the specs change from early to later TRs? My car is an '87 U.S. version. So I would use the early numbers - correct? | ||
| Steve Magnusson (91tr)
Intermediate Member Username: 91tr Post Number: 2084 Registered: 1-2001 |
Jeff -- Do you know the source of Wade's data? The '85 standard version TR OM (344/85) show both the intake opening and closing occur 3 deg sooner than the US version so the intake duration is the same: For 1985 Standard TR  For 1991 US TR  Not a big point, but all the TR OMs are on the Owner's Site if you'd like to check them. | ||
| Jeff Green (Carguy)
Member Username: Carguy Post Number: 494 Registered: 10-2002 |
I made some phone calls today to find out what or if there are differences in cam timing between Euro cars and U.S. cars. The first call was to Algar since they have been so helpful in the past...but was put on permanent "hold" and finally gave up. I then called a fellow fchatter Andy, and had a great conversation. He is very knowledgeable, but unfortunately did not have his manuals to tell me specifics. Never the less it was great to hear him talk about P6 cams, extra 308 water pumps he had, and other Ferrari stuff. Very entertaining! He said for me to call Wade at Ferrari of Atlanta. When Wade pick up the phone I didn't know what to expect. But he was very polite and made me feel quite relaxed. I then asked him about the difference, if any, between cam timing spec.s for Euro and U.S. cars. He looked through his records and found the information. I read what my manual said, and he replied with what his said. The only difference was in the intake cam opening event....U.S. cars are at 13 degrees BTDC and Euro cars are 16 degrees BTDC. The closing points are the same. This suggests the Euro cams have more duration than U.S. cams. This doesn't seem likely...but who knows? I can understand the timing being different for no-cat cars and ones with cats. With more overlap the exhaust would be "richer" and make the cats work much harder, or even resulting in over heated cats and possible fire. This would support others saying they've heard of Euro timing on U.S. cars causing fires over time. Oh well, I'll time my car to U.S. specs. Just thought I'd share this with everyone. |