John J. Brooks
Freshman Member
Offline
I have been looking on line at photos and videos of the TR-8 trying to educate myself about the car in general. There are a couple of things I found that I have questions about. I have ordered a couple of books, which are on the way but have not yet arrived. Not even sure that the books would address the questions so i decided ti ask here.
1. Speedometer on the TR-8: I have seen photos and videos showing speedometers calibrated to 80mph and 140mph and I may have even seen one calibrated to 130mph. I was wondering if that is determined by vehicle year or maybe factory of manufacture? I read somewhere that all Canadian market cars were calibrated at 140 kph but my question is about U.S. spec cars. I have seen cars listed as a 1980 models showing both 140mph and 80mph speedos. Why the difference?
2. I saw a video for a TR-8 that looked factory fresh, not highly modified if at all. On the back of the trunk lid it said "Sprint" and the side badges on the front fenders said 3.9 litre instead of 3.5. A special model? or just upgrades to look factory?
3. I have seen three types of fuel delivery, Twin Zenith SU looking carbs, fuel injection and a 4bbl conversion I believe. I know the Zenith carbs and Bosch, I believe, FI set up to be correct from the factory. What is the main reason owners convert from factory set up to a 4bbl carb? I figure the Bosch FI would be quite reliable. So, I imagine the factory carbs might be the issue.
Thats all for now. Being new I'm sure I'll have more questions.
Not completely new to the Brit Car scene. Previously owned a 1960 AH Bugeye.
1. Speedometer on the TR-8: I have seen photos and videos showing speedometers calibrated to 80mph and 140mph and I may have even seen one calibrated to 130mph. I was wondering if that is determined by vehicle year or maybe factory of manufacture? I read somewhere that all Canadian market cars were calibrated at 140 kph but my question is about U.S. spec cars. I have seen cars listed as a 1980 models showing both 140mph and 80mph speedos. Why the difference?
2. I saw a video for a TR-8 that looked factory fresh, not highly modified if at all. On the back of the trunk lid it said "Sprint" and the side badges on the front fenders said 3.9 litre instead of 3.5. A special model? or just upgrades to look factory?
3. I have seen three types of fuel delivery, Twin Zenith SU looking carbs, fuel injection and a 4bbl conversion I believe. I know the Zenith carbs and Bosch, I believe, FI set up to be correct from the factory. What is the main reason owners convert from factory set up to a 4bbl carb? I figure the Bosch FI would be quite reliable. So, I imagine the factory carbs might be the issue.
Thats all for now. Being new I'm sure I'll have more questions.
Not completely new to the Brit Car scene. Previously owned a 1960 AH Bugeye.