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  #91  
Old 06-10-2015, 02:05 PM
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Quote:
Originally Posted by AquilaBMW View Post
I think the best way I can describe what I felt was that it was all noise, but no go...

In my limited experience, it could be a number of things:

1, Open exhaust due to resonator delete could mean the car breaths a lot easier and better however is losing some bottom end torque? The whole back pressure thing is considered an old wife's tale these days, however there is something to be said about exhaust scavenging.

2, Maybe indeed the S/C is "tired" and due to it being installed on the engine with pulleys and all, it is actually compromising the power output of the engine - almost like additional load on the engine itself.

Just my thoughts.... I could be totally off base here.
From pictures it had Dinan exhaust that is part of the package to get the HP and TQ numbers of a supercharged 4.6.

Not challenging your conclusions of the drive of that particular 4.6 at all. Just saying when performing as it should it is a huge improvement over a stock 4.6.

My view is the rest of what that comes with the Dinan supercharger kit is what is unique and unavailable. That justifies the sell price. To me 9 grand, even more is a great deal. I got estimates on doing a custom supercharger install. It was over $15,000 with at 4-6 weeks downtime. And the end result would be breaking new ground, so who knows what the performance and reliability would have been. The case was the same when I got quotes for twin turbos.

I have Dinan exhaust and it is considerably louder but it is not resonator delete. There is considerable more roar with the Dinan airbox. Both the louder pipes and airbox roar made it initially seem like it wasn't that much faster until my mind could dial that out and confirmed 0-60 improvement. Having electric cutouts, I can confirm there is benefit from open exhaust on a boosted 4.6, but you are correct, that is not always the case depending on the application.

Jay can confirm performance and reliability for a Dinan supercharged 4.6. Unfortunately, neither of us own one.
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  #92  
Old 06-10-2015, 03:10 PM
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Originally Posted by bcredliner View Post
There is a very significant difference of the power to weight ratio of an X5 and a M3. Since Torque gets you going and there are other differences that are M3 advantages, I wouldn't expect "at a bare minimum." Would be interesting to compare dyno runs, or better yet, a side by side race to see what happens.

HP of a 4.6 with supercharger is 451 and TQ is 439.
HP of a stock 4.6 is 340 and TQ is 371.
Oh of course. Which is why I made that statement. I meant the power delivery should feel at least as good as the 333hp E46 M3. The M3 I believe is in the 3400lb range with that HP and 262ft lbs of torque. Given the huge weight disadvantage of the X5... I'd expect 451hp/439tq to pull at least as hard (or harder) as the M3. That's all I was saying.
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  #93  
Old 06-10-2015, 04:55 PM
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Much harder than an E46M fyi
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  #94  
Old 06-10-2015, 06:20 PM
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Originally Posted by J.Belknap View Post
Much harder than an E46M fyi
I figured as much. Just pulled the e46m out for the comparison since I've driven a bunch of them.

I'm sure the Dynan 4.6i is a fun beast for sure. Wish I could get one... even the one posted here. But unfortunately 5 Bimmers and 2 drivers is about 2 too many cars. LOL.
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  #95  
Old 06-12-2015, 09:01 AM
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Originally Posted by bcredliner View Post
From pictures it had Dinan exhaust that is part of the package to get the HP and TQ numbers of a supercharged 4.6.

Not challenging your conclusions of the drive of that particular 4.6 at all. Just saying when performing as it should it is a huge improvement over a stock 4.6.

My view is the rest of what that comes with the Dinan supercharger kit is what is unique and unavailable. That justifies the sell price. To me 9 grand, even more is a great deal. I got estimates on doing a custom supercharger install. It was over $15,000 with at 4-6 weeks downtime. And the end result would be breaking new ground, so who knows what the performance and reliability would have been. The case was the same when I got quotes for twin turbos.

I have Dinan exhaust and it is considerably louder but it is not resonator delete. There is considerable more roar with the Dinan airbox. Both the louder pipes and airbox roar made it initially seem like it wasn't that much faster until my mind could dial that out and confirmed 0-60 improvement. Having electric cutouts, I can confirm there is benefit from open exhaust on a boosted 4.6, but you are correct, that is not always the case depending on the application.

Jay can confirm performance and reliability for a Dinan supercharged 4.6. Unfortunately, neither of us own one.
Not to worry man, I did not think you were challenging my conclusions. I really was just throwing my thoughts out there - you know a lot more about this stuff than I do.

I guess the value of the car will be decided by the market. I appreciate all the stuff it has on it, it is just wrapped in the wrong package.
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  #96  
Old 06-12-2015, 09:02 AM
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By the way - the car just popped up on CL again! I almost feel evil saying this, but I feel justified in my assessment of the car. To me, that means a few more people have seen it and either haven't been WOW'd by the car or have either made similar or lower offers than I did.
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  #97  
Old 06-12-2015, 09:24 AM
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Originally Posted by AquilaBMW View Post
By the way - the car just popped up on CL again! I almost feel evil saying this, but I feel justified in my assessment of the car. To me, that means a few more people have seen it and either haven't been WOW'd by the car or have either made similar or lower offers than I did.
Checked on SF/East bay C/list, I don't see it.

Can you link?
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  #98  
Old 06-12-2015, 09:25 AM
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^^I agree with your assessment too. At 8k I think its more than fair, even though its had 2 owners who have "cared for it" its whole life, along the way, perhaps when current owners wife starting driving it a few years ago, life got in the way, kids sports, etc, and the car started getting neglected.

Seems the current owner is more interested in just making sure the car drives from point A to point B and less concerned about keeping an extremely rare example in great condition for the long haul.

If I bought the vehicle I'd expect at least 5k in repairs and fixes off the bat. Probably closer to 6-7 considering the unknown Dinan issues. Its a heck of a gamble for the right buyer but I really hope one of us purchases it and restores it to its glory.
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  #99  
Old 06-12-2015, 10:16 AM
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Originally Posted by TiAgX5 View Post
Checked on SF/East bay C/list, I don't see it.

Can you link?

Sure... here you go: BMW
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  #100  
Old 06-12-2015, 10:19 AM
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Originally Posted by Ricky Bobby View Post
^^I agree with your assessment too. At 8k I think its more than fair, even though its had 2 owners who have "cared for it" its whole life, along the way, perhaps when current owners wife starting driving it a few years ago, life got in the way, kids sports, etc, and the car started getting neglected.

Seems the current owner is more interested in just making sure the car drives from point A to point B and less concerned about keeping an extremely rare example in great condition for the long haul.

If I bought the vehicle I'd expect at least 5k in repairs and fixes off the bat. Probably closer to 6-7 considering the unknown Dinan issues. Its a heck of a gamble for the right buyer but I really hope one of us purchases it and restores it to its glory.
That may be it right there. Current Seller is actually the second owner. He got the car from a relative and in all fairness, he has a stack of receipts of all the work done to the car.

However, in more recent times the car has been neglected and it may actually be nothing to do with him personally.

Body work on the car alone will run around $2K or more if done right. Then, there is the suspension (Seller is providing bushings). Then you have the DINAN stuff to look into. Again - maybe it's my inexperience on these kind of upgrades, but I stand my butt dyno assessment

After that, there are the other little things to address - you are up there in restoration costs.
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