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Old 23rd August 2008, 18:23   #21
ard
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Beside the good posts on why you'd want to move 'down market' in terms of technology and class, you need to consider the economics.

1. You are not capable of doing the swap or maintaining the car- so you will be stuck paying for all the work, trouble shooting and maintenance. If you think it is expensive to have a M5 worked on, drive an M5 with a corvette engine into a shop- and open your checkbook. Sure, it is 'american muscle' and is cheaper... or at least that's the myth. Give it a try.

2. Your car will have zero value on trade. If you will drive it into the ground then who cares. The market for M5s is small. The market for M5s in which someone took out the motor and hacked in a more powerful american motor will be wee small.

These kind of projects are done by mechanic-types themselves, or rich guys who don't care about costs. NOT people who need economical solutions.
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Old 23rd August 2008, 18:41   #22
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I agree that this is not practical for an M5. In my case I have a 97 540 that I was offered 7k as a trade. The parts that I have in the car are worth double that and I will be left with an excellent roller that is ready for a new engine. I am going to gut the car and remove everything that is not needed. The goal is to make a track car that will pass emissions and safety so it can be driven to the track and around town. I am planing on using new aftermarket gauges with the GM harness and keep the BMW harness to operate the ABS system.
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Old 23rd August 2008, 20:38   #23
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Mustang Cobra motor, 4.6 DOHC, and throw on a Kenne Bell supercharger and you easily get 600+WHP under $10,000 bucks.

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Originally Posted by sonnyroy View Post
If for some reason I have to swap a other engine, I will go for the 32 valve mustang cobra engine. 2003 and up they was come with a blower, if I remember, the little 4.6 had 425 HP and with just a pulley they was increse up to 450 WHP, also the engine is factory forged and fully aluminum. Am personally not a fan of GM engine but I know the corvette engine is also a great one. Actually my S62 engine is disable and ready for rebuild, am still looking foward to get a really good result at really good price. Doing a engine swap in that kind of car am not sure if it's a good idea. There so many electronic which will stop to operate cause or the different kind of engine. That a big decision. Actually the cost of my rebuild is now at 4000 for a complete block recuild, I will guess the final cost will be aroung 5000$ But am doing all by myself so I save a huge amount of money.
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Old 23rd August 2008, 20:51   #24
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You can easily put an engine with the GM ecu in the car. that is the easy part...

Its making the DSC work without having light son all the time, its wiring the check engine light to the dash without disrupting the entire cluster making the cruise controls work etc. Instlling it and gettign it to run isnt the hard part, its the time and effort spent getting it to function properly.

I assure you GM does not sell a plug and play harness to mate with an e39 M5.

track car very easy to do, real life good swap for a daily or weekend driver, not worth in IMHO.

Ryan
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Old 23rd August 2008, 21:46   #25
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In Euro fest in san diego last week I met a couple of E39 owners and a freind who had a 3rd gen Rx7 with a 03 zo6 motor

He said the motor was 4000 bucks brand new from Gm

I spent 4000 bucks rebuilding an already built rotary that is as reliable as palastinians at peace talks LOL LOL


I plan on one day having my 2nd gen 10th ann rx7 converted the motor beleive it or not weighs 40 pounds less than the 1.3 li. wankel

and make 440+ rwhp

He smokes eveything on the road

would I put it in a e39 m5..... NO but I would do a 525 sleeper just to blow the doors of and FI M5 that talks BS LOL LOL LOL

The best part is with all the money I save on not donating it to BMW AND Companys Like RMS AND DA Ill have 10s of thousands to waste on expensive hookers like my ex govenor spitzer
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Old 23rd August 2008, 23:28   #26
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I thought the whole purpose of the M5 is not everyone has them like vettes or stangs. It is a pretty rare car with a very interesting engine all in one package. g sensitive lubrication, dual vanos bmw hi perf engine. Oh thats 11 years old...

I would never put anything other than an s62 in the M5. If you want a cheap car to mod, buy one. unfortunaltly the M5 isn't one and if everyones goals were 500whp in the M5 you should be prepared to spend the money.

I the near furture you will be able to buy headers and a supercharger kit for around 15k. 500-525whp for 13-15k is not not hat bad for one rare beast.

I personaly think the S62 is a far superier engine. Just my opinion... If cost isn't an issue the S62 will develope very similar#s with similar mods and it is only a 4.9l.

if I wanted a Z06 engine, i would buy a Z06

Ryan
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Old 23rd August 2008, 23:58   #27
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Quote:
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if I wanted a Z06 engine, i would buy a Z06

Ryan
yet i would get an e30
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Old 24th August 2008, 01:37   #28
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Quote:
Originally Posted by wxl1988 View Post
Mustang Cobra motor, 4.6 DOHC, and throw on a Kenne Bell supercharger and you easily get 600+WHP under $10,000 bucks.
Am talking just about stock parts, I guess this topic is for a economical engine swap. But yes a Kenne Bell get better result for sure.
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Old 24th August 2008, 01:48   #29
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Quote:
Originally Posted by ard View Post
Beside the good posts on why you'd want to move 'down market' in terms of technology and class, you need to consider the economics.

1. You are not capable of doing the swap or maintaining the car- so you will be stuck paying for all the work, trouble shooting and maintenance. If you think it is expensive to have a M5 worked on, drive an M5 with a corvette engine into a shop- and open your checkbook. Sure, it is 'american muscle' and is cheaper... or at least that's the myth. Give it a try.

2. Your car will have zero value on trade. If you will drive it into the ground then who cares. The market for M5s is small. The market for M5s in which someone took out the motor and hacked in a more powerful american motor will be wee small.

These kind of projects are done by mechanic-types themselves, or rich guys who don't care about costs. NOT people who need economical solutions.

Am 100% with this ARD, when you will pop the hood you will see a nice pushing rod engine compare to the really Hi-Tech engine. About the reselling, the guy who looking for a M5 he just don't look for the body but also for the under the hood...

I read some post here and we drift a little bit now, do we talk about put a engine in a M5 or in a no value car like a 528. There about 10-15000$ difference between these two cars...

Sonny
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Old 25th August 2008, 01:33   #30
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Sorry, but gotta jump in. There are seveal reasons to do this. I'm not so sure the fact that a motor isn't an OHC engine means it is low tech.

The LSX series of motors are really high tech pieces. They are all aluminum, the heads look like they came from NASCAR and a lowly LS1 is easily capable of 400 RHWP. All of this for pretty low $$$. Now I'm not saying it would be easy to drop one in our chassis or getting everything to work, but having the looks of our car with an engine that is as reliable as a hammer is pretty nice. Also if you blow one up it won't cost you more than the retail value of the entire car to replace it.

Finally if you really wanted to do it you could probably sell the S62, drop in the LSX of your choice and still have some money in your pocket. Not saying I'm gonna do it, but it seems like a reasonable swap to me...
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