E39 BMW LS1 w/ turbo

[kevm14]

I like this.

http://forums.bimmerforums.com/forum/sh ... 9-LSx-swap

LS1, 317 heads (lower compression) and 13.5 psi. Not sure what the cam is, probably fairly mild. 586 rwhp. 78mm Turbonetics turbo. Ran an 11.2 @ 129mph. This was the replacement for his previous BMW LS-swap, which was an E36 with a supercharged LS1. That one ran into the wall at the big end of the track (radiator hose blew up and coolant went everywhere).

https://www.youtube.com/user/claysanderson/videos

There is an Engine Conversions section at this forum and there are a LOT of LS-swaps.

http://forums.bimmerforums.com/forum/fo ... e8177e3861

[kevm14]

Go on.

Damn....I've never seen a LSx swapped Bimmer. Kudos.

lol, what rock have you been living under?

It seems that they used to be somewhat “special” and “rare”, and oddity among swaps. Now everyone and their mother in law is swapping them due to the staggering depreciation of relatively newer chassis (E39, E38, E46). These cars are reaching the end of the life of many factory components, and non-enthusiast owners don’t want to drop thousands to rebuild a transmission or engine to keep a 10-15 year old car running. Combine that with the low cost of mass produced LS series drivetrain, and it’s a match made in heaven. It’s really kind of fascinating when you think about the economics of how it all comes together.

[kevm14]

The cam is not stock.

227/233 duration .623/.634 lift

Well that is no baby cam...

[Fast_Ed]

I've done some cursory looking at that forum, and there dont seem to be any 740iL LS Swaps.

Maybe everyone just buys a Fleetwood instead? LT1 plus huge legroom.. close enough?

[kevm14]

That guy on the SS forum that liked to use the term "FTS" for Fleetwood Touring Sedan - he had the right idea. Tighten things up (handling), more power, still comfortable, surprise EVERYONE. That's a formula I can get behind.

[kevm14]

This is a good one. 540i manual conversion.

http://forums.bimmerforums.com/forum/sh ... ion-thread

I love the comments about how packed in the factory 4.4L V8 is and how much room there will be with an LQ4.

And are these famous last words or the truth?

It's too early to be certain, but this swap is turning out to be a lot easier than when I swapped this engine/trans into my 1968 C10 last year. Everything is sitting there just waiting for you to splice/re-route, etc.

Match made in heaven!

[kevm14]

Fun fact: early C5 fuel systems used a combination fuel filter/regulator that was set to 58 psi, and was also returnless. Now that's interesting. And since it's GM, even if you "splurge" for an AC Delco from RockAuto, it's still only $65. And when you replace your filter, you replace your regulator every time.

[kevm14]

This is so German. You could calibrate the fuel economy gauge on the E39.

This "test" is actually a way to adjust the OBC's fuel consumption factor. There's a sensor in the fuel injector system that indicates fuel consumption back to the OBC. This "KVBR" value is used to calibrate that sensor using the following process:1.Reset one of the OBC mileage indicators and the trip odometer, and fill your tank.
2.Record the actual fuel consumption for your car over a long period (one to two months at least).
3.Divide this reading into the trip odometer value to calculate your actual mileage.
4.Divide this result by the OBC indicated mileage over the same period and multiply by 1000.
You now have your fuel consumption factor. To enter the factor into the OBC, get into Test 20 and press Reset. This will start the KVBR value counting down. It will count down to 750, then start over at 1250. A crude user interface to be sure, but it works.
You probably don't need to change the KVBR value; the default value of 1000 should be accurate. And if your calculated fuel consumption factor is outside the 750–1250 range, there's probably something wrong.

[kevm14]

One of the swap threads recommended this as being very good. I will keep that in mind if I feel like I need one.

http://www.harborfreight.com/12-in-prof ... 68424.html

[kevm14]

Another thread: http://ls1tech.com/forums/conversions-h ... -540i.html

I love the idea of these guys who've never worked on a single small block V8 are totally willing to jump in and swap these in their prized German iron. So cool.

Example:

installed LS2 cam. installed timing set (new HD LS2 stuff) and oil pump. timing this thing was.........too easy...felt like i was doing something wrong as there were like 3 steps.

Because not enough cams.

General reply that I smirked at:

Great project! Im so jealous, I got a 1991 850i thats got that big'ol (useless) V12 that I would love to swap in a LS motor in....

Before Ed rolls his eyes, remember in 1988 the M70 was good for 300 hp @ 5200 rpm and 330 lb-ft @ 4100. That's a V12 which must have been tremendously expensive, big, heavy, etc. 4 years later a humble LT1 was putting out the same numbers.