4 speed synchro box and bonnet weight

dal2.0litrefrogeye · Post by **dal2.0litrefrogeye** » Sun Dec 28, 2014 10:34 am

Hi does anyone know the weight of gearbox from my S 2 , starting to calculate the weight loss of my car , also does anyone know the weight of a standard steel bonnet , thanks for any ideas

christopher storey · Post by **christopher storey** » Sun Dec 28, 2014 11:46 am

The gearbox is in the region of 85 lbs, and the steel bonnet is about 150 lbs ( don't hold me to that too closely but 3 men can lift one with ease, one at either wheelarch and one at the nose )

dal2.0litrefrogeye · Post by **dal2.0litrefrogeye** » Sun Dec 28, 2014 12:03 pm

Thanks for the reply , quite surprised about the weight of the box , as the T5 I will be replacing it with is 36 km and the main casing is aluminium ?? Every days a school day ,
Bit surprised I can't find the info on the Web ?

johnney · Post by **johnney** » Mon Dec 29, 2014 4:59 am

38Kg/83.6Lbs for a short wheelbase car according to Uryk at Etypefabs.

dal2.0litrefrogeye · Post by **dal2.0litrefrogeye** » Mon Dec 29, 2014 4:40 pm

Now found a Web site that states the T5 is 34 KG

, confused of Orpington :?

jag68 · Post by **jag68** » Mon Dec 29, 2014 9:33 pm

I weighed all these components back when I was racing an E Type. As I recall the standard 4 speed all synco box with bell housing was 95 pounds. The T5 with bellhousing is said to be 15 pounds lighter. I never weighed it before I put it in. As to the bonnet, the one I raced with had no lights, bumpers, wiring and no headlight glass and all the internal bulkheads were aluminum. I weighed it at 120 pounds, so I expect that a fully dressed all steel one would be in the range of 175 - 200 pounds.

jag68 · Post by **jag68** » Mon Dec 29, 2014 9:49 pm

I weighed all these components back when I was racing an E Type. As I recall the standard 4 speed all synco box with bell housing was 95 pounds. The T5 with bellhousing is said to be 15 pounds lighter. I never weighed it before I put it in. As to the bonnet, the one I raced with had no lights, bumpers, wiring and no headlight glass and all the internal bulkheads were aluminum. I weighed it at 120 pounds, so I expect that a fully dressed all steel one would be in the range of 175 - 200 pounds.

abowie · Post by **abowie** » Mon Dec 29, 2014 10:43 pm

dal2.0litrefrogeye wrote: the T5 I will be replacing it with is 36 km and the main casing is aluminium

Aluminum is about 35% the density of iron, but most of the T5 box is still iron, the casing is only one component of it.

johnney · Post by **johnney** » Wed Dec 31, 2014 5:44 am

dal2.0litrefrogeye wrote:Thanks for the reply , quite surprised about the weight of the box , as the T5 I will be replacing it with is 36 km and the main casing is aluminium ?? Every days a school day ,
Bit surprised I can't find the info on the Web ?

It also has an extra gear! Etypefabs 5 speed box is 33Kg

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4 speed synchro box and bonnet weight

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