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fly wheel weight
Posted: Sun Nov 12, 2006 9:30 am
by TONYSPRINTER
can anyone tell me how heavy a sprint/1850 fly wheel should weigh thanks

Posted: Sun Nov 12, 2006 1:36 pm
by TONYSPRINTER
NO BODY ?

Posted: Sun Nov 12, 2006 1:42 pm
by USASPRINTMAN
For what it is worth the TriumphTune Performance Manual says you can take 3 pounds off the flywheel. But it doesn't give a weight.
Posted: Sun Nov 12, 2006 1:51 pm
by Mad Mart
Just weighed one...10kgs.
Posted: Sun Nov 12, 2006 2:01 pm
by TONYSPRINTER
thanks for the replies thats good info as i now know the 1 i have is lighter as mine only weighs 8.5 kgs

Posted: Sun Nov 12, 2006 2:45 pm
by george
adam weighed a tr7 and 1850 not so long ago i guess if you do a search the info will be there on his posts
Posted: Sun Nov 12, 2006 3:48 pm
by Judge Mental
Mine had been lightened and weighs 8.5 kg's as well.
Posted: Sun Nov 12, 2006 7:06 pm
by SprintV8
Mine weight's a lot less than that
.
Mind you it's not a Sprint one. 
Posted: Sun Nov 12, 2006 9:12 pm
by Dollyboy
lovin you rhumor phil.
dunno how much mine weighs, probably same as scotts...

Flywheel Weight
Posted: Mon Nov 13, 2006 1:33 pm
by SPRINTPARTS
As has already been stated, standard flywheel is 10kg, I think the homolgated weight was 9.95kg.
We have used 8.5kg and 6.5kg flywheels. The lighter flywheel does help the motor to spin up faster. We have just had some steel flywheels made which weigh just under 5kg, which will be fitted for next years race season to see if makes any difference in performance.
Posted: Mon Nov 13, 2006 4:42 pm
by Judge Mental
I wish there was dribbling smiley!
Mine had been previously lightened in the early 90's when the car was first worked on by the p/o. Mark Fields srint engine in his old TR7 did seem to rev more freely than mine and he had a custom flywheel in that so it is probably worth doing. Properly though I might add (as Sprintparts have obviously done)! I'd quite like the use of my legs for a bit longer!