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Old 07-29-2016, 01:50 PM   #115
cf6mech
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Join Date: Sep 2012
Drives: FRS Silver LS1 swapped.
Location: Texas
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Quote:
Originally Posted by Tcoat View Post
Yep. Dry engine weight is just part of it. Changed tranny, more oil, heavier mounts to handle HP and so on all add up.
If you read the Vorshlag blog,.....I gained a measly 100 LBS and kept the exact front to back bias......since then I have lost even more weight by removed A/C compressor and condenser.....removed all air bags and wiring....Stereo speakers and wiring etc.etc...(track car)..but a 100lbs gain with the same balance for a trade off of 372whp and 465ftlbs of torque on pump gas NA is all win to me.

* Vorshlog before correction on weight bias....but total weight gain is unchanged *
The initial car came to us at 2682 pounds (no back seat + 17x9" wheels + roll bar + race seats + front BBK) and with the LS1 + T56 it is now 2816 pounds, for a gain of 134 pounds. I'm a little surprised by that amount of gain, honestly, because my initial best-case estimate of a 50 pound gain wasn't that accurate. Some of this gain is added fuel weight; the car came to us with less than a gallon of E85 in the tank, and now has a 1/3rd of a tank of 93 octane - maybe 35 pounds more fuel than before. So the real gain from the LS1/T56 Magnum XL swap was about 100 pounds.
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