Quote:
Originally Posted by Cross
(Post 1988035)
It add's 50 pounds you say, a complete swap adds 50 pounds so do you really think the 13BTT is really that light of a motor? You are letting it's size fool you because you don't seem to understand how it's built. These are not super light motor's in fact they are heavy.
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No, I know the stock 13b-tt is not a light motor. Stock, with stock twins, it's quite heavy for its size. Which is why when you replace it with a 6+ liter LS (like vs. like, keeping p/s and a/c, etc) you only add 50 lb.
My *point* was that even on an FD, where you aren't adding that much weight, and where the engine is mounted more aft relative to the FR-S, you still move the c.g. forward.
On the FR-S, where the delta in engine weights is greater, and where the engine is mounted further forward, you're not going to do any *better* than the swap into the FD as far as movement of c.g. is concerned. And on the FD, like vs. like, c.g. moves forward ~1.5% (like vs. like).
Yeah, I'm familiar with that thread. It is three different base cars with different mods and different "deletes" (A/C, p/s, ABS). Tough to get *true* like vs. like differences.
From my car and what I've been able to gather from other builds, LS swap into an FD, same level of equipment, adds *about* 50 lb. vs. stock and moves the weight forward *about* 1.5%. With other modifications and deletes/additions, you *can* make it lighter than stock with a more rearward c.g., but then you can make the rotary car a lot lighter and move its c.g. rearward as well... |
