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A few years ago, there was a (mostly private) dispute in the Attex community that was concerned with the weight between the ABS and HDPE bodies. It was claimed, all other factors being equal, that the (second and third generation) ABS bodies were roughly 100 pounds lighter than the HDPE bodies, and were therefore a more appropriate choice for those wishing to build a race-oriented machine. This really bugged me, to the point that I actually went out and weighed two bodies I had, and found that they were roughly within 8 pounds of one another. I always felt some sort of satisfaction finally getting some quantitative data on the situation. So much so, that when another opportunity to make just such a comparison presented itself, JP and I jumped at the chance.
This particular comparison concerns the typically-disputed weight difference between the featherweight Baker-Hill 6000 series transmission, and the venerable, Borg Warner T-20 (aka: The Pig) . JP came up to the ranch for Cage-Fest 2010 a couple weeks ago, and lugged up his 6000, and I had a T-20 from the R laying around. In order to make the comparison an “apples vs. apples” contest, we weighed each of the transmissions in a “ready to be used” state. That is, each transmission had a belt on it, the T-20 was filled with the appropriate amount of fluid, and each transmission was ready to be bolted down and hooked up to the laterals. This was done on-the-cheap, with a set of bathroom scales out in the garage. (Don’t ask. I have horrible personal image issues. “Hey Jeff, does the Tank Trainer make me look fat?”)
We were each astonished at the results. The final verdict:
Baker Hill 6000: 65 pounds
Borg Warner T-20: 70 pounds
Now, we’re not here to gauge the merit of a wet-clutch vs. dry-clutch system, nor are we trying to say that one is better than the other. This is just a back-of-the-napkin comparison designed to educate someone who may want a bit more clout when bench racing. Some people like the addition of reverse on the machines and the more cushy feel of the T-20, some like the open-primary, wind-in-your-hair feel of a series of giant steel plates whirring unprotected behind your liver at 5000 rpm. I like both…
Enjoy!
~m
This particular comparison concerns the typically-disputed weight difference between the featherweight Baker-Hill 6000 series transmission, and the venerable, Borg Warner T-20 (aka: The Pig) . JP came up to the ranch for Cage-Fest 2010 a couple weeks ago, and lugged up his 6000, and I had a T-20 from the R laying around. In order to make the comparison an “apples vs. apples” contest, we weighed each of the transmissions in a “ready to be used” state. That is, each transmission had a belt on it, the T-20 was filled with the appropriate amount of fluid, and each transmission was ready to be bolted down and hooked up to the laterals. This was done on-the-cheap, with a set of bathroom scales out in the garage. (Don’t ask. I have horrible personal image issues. “Hey Jeff, does the Tank Trainer make me look fat?”)
We were each astonished at the results. The final verdict:
Baker Hill 6000: 65 pounds
Borg Warner T-20: 70 pounds
Now, we’re not here to gauge the merit of a wet-clutch vs. dry-clutch system, nor are we trying to say that one is better than the other. This is just a back-of-the-napkin comparison designed to educate someone who may want a bit more clout when bench racing. Some people like the addition of reverse on the machines and the more cushy feel of the T-20, some like the open-primary, wind-in-your-hair feel of a series of giant steel plates whirring unprotected behind your liver at 5000 rpm. I like both…
Enjoy!
~m
I used same tranny frame and belt. I didnt have any pucks in it. I think the oil is low in the 7000 but didnt actually check.
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