540 1/4 mile times

[Mike]

What's a 540 good for in 1/4 mile times? Trap speed? Does chip make any difference? I'm planning to do a motor swap to a m60b40, just saving up right now, and want to encourage myself by looking at 540 performance times

[tim]

I have the eat chip and it dropped about a sec from 13.5 to about 12.5.
It goes 0-60 in about 5.8.

[stan]

Sorry to pry, but are you saying that all you have is the chip with everything else stock?? I've never heard of a 540 turning that kind of 1/4 mile "stock" so I had to ask.

[Craig]

I gotta agree, a stock auto 540i is not going to run a 13.5 quarter mile time. Maybe low 15s, and I seriously doubt a chip will knock a full second off the time.

I assume you are just estimating, and have never been to a drag strip.

[bahnstormer]

lets see slips tim
i smell something funny in the air

[G Feller]

When I did research before I bought my car, I noted the fact that the straight-line performance of the 540 was nearly identical to that of any recent stock Mustang GT. I asume the 1/4 mile times for that car are more readily available than they are for the 540, but I think it's about 14.5 - 15 in stock form.

And yes, you will want Mark's chip, which may not make a 540 an M5, but it does bring out the predator in the car and is the biggest bang for the buck you can get. The chip rocks, but even so I doubt it will get the 1/4 mile much below 14 even.

Would be happy to see actual results if anyone has them.

Hell, even a little of Duey's "fun with numbers" might be worthwhile here. . . .

What's a 540 good for in 1/4 mile times? Trap speed? Does chip make any difference? I'm planning to do a motor swap to a m60b40, just saving up right now, and want to encourage myself by looking at 540 performance times

[scott540]

The times were listed in Car and Driver. I have the issue at home. If I remeber I look at it when I get home today.

[Craig]

When I did research before I bought my car, I noted the fact that the straight-line performance of the 540 was nearly identical to that of any recent stock Mustang GT. I asume the 1/4 mile times for that car are more readily available than they are for the 540, but I think it's about 14.5 - 15 in stock form.

Coming from the world of Mustangs (just sold my track-whore '96 Cobra) that's about where most of them run. The 1999+ cars got a bit more power and they will just kiss high 13's with the right driver. I'd be more curious to see what trap speeds are on the 540i, as this can tell you a bit more about the potential of the car and is less affected by driver skill (or lack of).

I'd also like to see some dyno numbers for the chips, both before and after. One thing I've noticed is that most of my Mustang friends run to the dyno after just about every mod they make, that doesn't seem to be the case in the world of BMWs.

[DueyT]

I'm looking for the link I had to a very accurate 1/4mi calculator that I have used in the past. It included all sorts of input including gear ratios, roll out times, shift points, shift latency, frontal area/Cdrag/etc... and tourque figures for the engine throughout its power band. It worked out very accurate numbers (around +/- 0.05 sec), I'll pass the link when I find it.

My gut feel (without using the G-Tech right now, winters on steelies not great for hook-up) is that a 540 is going to pull mid-14's...chipped, maybe low 14's. I can't see it doing much better than that, since my 400+HP Charger was running 13.2's-13.3's in the mid to high 100's.

I think that with Jeff being the local 1/4mi guru, he may be able to provide more input.


Cheers,
Duey

[Craig]

Well, for reference my 283rwhp (approx 335 flywheel hp) 3400 pound Mustang was good for 13.6 at 104mph. That's with a 5 speed. A 540i is heavier, makes less power and with an auto is going to be even slower.

I can believe 14's, but not 12's.