Last post on Nov 25, 2013 at 11:27 AM
You are in the Sedans
What is this discussion about?
Lexus GS 430, Acura RL, BMW 5 Series, Volvo S80, Audi A6, Infiniti M35, Infiniti M45, Mercedes-Benz E-Class, Cadillac STS, Sedan
#9039 of 10348 Re: Dreaming... [lexusguy]
Jan 10, 2007 (8:15 am)
Trust me, it's WAY more complicated than a simple blower installation. Consider the following points:
1) The engine in the 2002 E39 was the previous style (and in fact many years old in its life cycle) aluminum block with the cast iron sleeves. Decent for its purpose, but hardly as robust as the new aluminum core/magnesium shell composite block that debuted with the introduction of the E90.
2) Factory built turbocharged engines are typically reinforced (over that of the normally aspirated siblings) with the following goodies:
- 2a) Higher strength crank, rods and pistons
- 2b) Rod based oil squirters to cool the piston domes
- 2c) Considerably greater cooling capabilities such as:
- - 2cA) Larger radiator and the necessary plumbing
- - 2cB) Additional and/or larger oil coolers and the necessary plumbing
- - 2cC) Large size intercooler(s) and the necessary plumbing
- - 2cD) Extra coolant plumbing to the bearings on the turbine houseing to keep them cool, especially at shutdown
- 2d) Significant software remapping
- 2e) Revised/more robust valve train
- 2f) Higher flow intake and exhaust manifolds (2 in the case of the 335i)
Did BMW do all of the above to the 335i engine? Probably. Would I trust the (bored out to within an inch of its life) 3.0 liter mill from an E39 to withstand the rigors of a 300 (320-340 by all accounts) HP turbocharging application? Not a chance. While the old 3.0 liter mill was certainly a good and robust engine for its intended output, there is only one word to describe what would happen to that engine when an intake charge 150% of design spec was fed into it. KABOOM!
#9040 of 10348 Re: 535i & xi [rayainsw]
Jan 10, 2007 (12:07 pm)
After reading your post, I went to the BMW USA web site under Future Vehicles and read the overview and press release on the new 5 series.
Does the press kit you mentioned have any additional information than the web site?
In the overview, when describing the 550i sport package, they say " ... new 19” double spoke alloy wheels (non run-flat) ... " Does anyone know if this implies that versions other than the 550i SP will have RFTs?
#9041 of 10348 Re: 535i & xi [bruceomega]
Jan 10, 2007 (1:07 pm)
"Does the press kit you mentioned have any additional information than the web site? "
So far, I have only seen a batch of additional photographs - that I do not yet see on the web site.
Semi-happy with my run-flats....
#9042 of 10348 Re: Dreaming... [shipo]
Jan 10, 2007 (6:22 pm)
An engine doesn't have to be made out of exotic metals to handle some serious boost. Take the Toyota 2JZ-GTE for example. Its an iron block, aluminum head SOHC straight six that dates back to the early '90s. Hardly state of the art. Normally aspirated it made 225hp. With twin turbos, it could do 500hp without serious modification. I know the S2000's engine can do well over 300hp with just 2.2L, and Honda did not design it with forced induction in mind.
#9043 of 10348 Re: Dreaming... [lexusguy]
Jan 10, 2007 (7:22 pm)
"An engine doesn't have to be made out of exotic metals to handle some serious boost."
Agreed, however, the old BMW engine was more than a little long in the tooth. Comparing an iron block Toyota mill or or the very high revving S2000 is rather apples to oranges. I've never torn one of the old 3.0 liter BMW engines down so I cannot speak from first hand knowledge, however, as I understand it, its been bored out to the point where keeping three hundred plus HP contained would be more than a little hard on head gaskets and such.
Regardless, even if I was playing with one of the new mills I still wouldn't breath on it without a serious internal rework, including a lower mechanical compression ratio. Long story short, the only real way I'd ever attempt this would be to find a totalled 335i with the drive train still intact. Realistic? Probably not.
#9044 of 10348 Re: Dreaming... [shipo]
Jan 10, 2007 (8:50 pm)
I want 535d xi
#9045 of 10348 Re: Dreaming... [uglybear]
Jan 10, 2007 (9:33 pm)
A 6-Speed 535d SP (sans "x") sounds great to me too, especially given that I'm driving nearly 100 miles per day. That said, given the 300 (plus) hp on tap from the twin turbo gasser, oooh, I'd have a difficult time passing that one up.
#9046 of 10348 Re: Dreaming... [shipo]
by kyfdx@Edmunds HOST
Jan 11, 2007 (10:12 am)
I read that the 535i will be here in March!
#9047 of 10348 Re: Is there a difference? [domenickamarc]
Jan 12, 2007 (3:41 pm)
The Audi was app.$7200 more similarly equipped. Audi had a lower MF. Infiniti had a slightly higher residual.
Audi is now offering a $2500 owner loyalty on A6's until 3/5/07.
36/12 50% res. .00027 MF. Added in Audi maintenance for $550 which raises res.1% to 51%. Added 18" wheels and ordered a blk/blk. May miss the acceleration of the M but there is someting about the "planted" secure feeling of the Quattro Audi that I wanted. With the wheels($900) paying $app.$%5 month less than before.