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10-18-2016, 07:08 PM
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#41
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gone traveling
Join Date: Oct 2015
Posts: 138
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Quote:
Originally Posted by aja8888
They (turbochargers) are a "new thing" to the average car buyer
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New?
LOL.
I drove a Renault 5 Turbo in 1982 back in Europe.
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10-18-2016, 07:20 PM
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#42
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Moderator Emeritus
Join Date: Apr 2011
Location: Conroe, Texas
Posts: 18,645
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Quote:
Originally Posted by joylesshusband
New?
LOL.
I drove a Renault 5 Turbo in 1982 back in Europe.
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You must not be average then!
Turbos have been around for a long time, in many places except for the average U.S. car buyer.
__________________
*********Go Astros!*********
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10-18-2016, 07:32 PM
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#43
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Recycles dryer sheets
Join Date: Nov 2013
Posts: 236
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Timing is important. I know there are perceptions out there about buying at the end of the month, after Thanksgiving, when it is snowing, etc. etc. but I am not sure any one rule works all the time. Other than maybe when the new models are on the lot and they still have old models left.
What I do know is that after deciding on two different make/models we basically waited until the time was right and saved a lot of money. Not being picky about color/features has worked well in the past too.
I've always been able to be under Edmond TMV and TrueCar's pricing range, but it has also meant driving a few hundred miles away to get it too. Never have figured out why local dealerships won't deal much and I can save thousands a few hundred miles away, granted in larger cities.
Just don't do what we have done...new car last winter and already have 32k miles on it! Let's hope diesel motors are what they are cracked up to be and it won't even sneeze at going at least 300k.
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10-19-2016, 07:12 AM
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#44
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Thinks s/he gets paid by the post
Join Date: Oct 2013
Posts: 1,181
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Quote:
Originally Posted by aja8888
However, those older engines were not too demanding on HP/torque as today's higher revving 4 cylinders or the dual turbo BMW V6's monsters. Many of today's 4 cylinder turbocharged cars require premium fuel because of the high compression ratio. My stepdaughter's 2007 Mazda CX-5 is one of those.
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Wasn't aware BMW had a dual turbo V-6. What vehicle is that used in?
I am aware of the dual turbo with the inline 6, used, for example, in the 335is.
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10-19-2016, 07:19 AM
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#45
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Recycles dryer sheets
Join Date: Oct 2014
Posts: 57
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Quote:
Originally Posted by ziggy29
Was it a private sale with a very motivated seller? Hard for me to see a Honda selling for that much of a discount otherwise.
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Ziggy - The dealer gave me a great shopping tip (for when I buy another car in 10 years!). The dealer was located in a less desirable suburb of St. Louis, so the salesman said they discounted the car to get people to make the trip. I was happy to take advantage of the "geographic arbitrage."
There's just not much risk in buying a normally aspirated four cylinder Honda with only 22k miles on it. The only potentially wonky part of the car is the AWD, but we're willing to take the risk on that.
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10-19-2016, 07:45 AM
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#46
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Thinks s/he gets paid by the post
Join Date: Jul 2002
Posts: 1,581
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When it comes to cars, I am a late adopber of newer technologies until I feel it is proven, particularly as I have been buying used. Not willing to take the reliability risk.
Have not considered any vehicles with turbochargers or CVTs to date. CVTs may be OK, though my perception is their reliable life is about 150K miles (would love to hear other's experiences) but since I tow 3000lb and smaller trailers regularly, most CVTs are not rated for that use.
A couple of years ago Subaru started offering CVTs, and their tow ratings dropped, may be telling us something!
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10-19-2016, 04:24 PM
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#47
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Jul 2008
Location: Leeward Oahu
Posts: 17,809
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We have found the sweet spot to be 7 to 10 years old. By then, even Hondas and Toyotas have changed to the "new" and "improved" (visibly different) model on everything they produce. So when we looked in '07 for a Honda CRV, the "zoomy" new model was about $25K IIRC. But the "boxy" one (the '99) was $7K with less than 100K on the odometer. We still drive it and don't care when DW scrapes the side of the garage and leaves paint on it. Most everything still works, but since it has few electronics (no GPS, no back-up cam, etc.) very few things can "break" on it. We put about 8K or less on it/year, so it could last us another 5 years or more if nothing drastic happens. Oh, and we dropped collision/comp because one fender bender and it's totaled anyway. It really can't depreciate anymore as long as it runs. It's all a crap shoot, but at least if you lose, it's a smaller anti to get in. YMMV
__________________
Ko'olau's Law -
Anything which can be used can be misused. Anything which can be misused will be.
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10-19-2016, 10:11 PM
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#48
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Recycles dryer sheets
Join Date: Jan 2009
Posts: 471
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Quote:
Originally Posted by ERD50
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Mine's white just like the photo but a 2001. Turbo charger working great.
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10-20-2016, 07:51 AM
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#49
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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Quote:
Originally Posted by freedomatlast
Wasn't aware BMW had a dual turbo V-6. What vehicle is that used in?
I am aware of the dual turbo with the inline 6, used, for example, in the 335is.
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my boss has a new 3 series that I'm pretty sure has a twin turbo - sad thing is my forester is faster
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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10-20-2016, 07:52 AM
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#50
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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Quote:
Originally Posted by aja8888
You must not be average then!
Turbos have been around for a long time, in many places except for the average U.S. car buyer.
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I think those older turbos hold up due to the relatively low boost that they are pushing, maybe 5-7 psi? I run 19 in mine. Thinking about a bigger tmic and header so I can go 25psi or so on e85
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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10-20-2016, 09:02 AM
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#51
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Sep 2005
Location: Northern IL
Posts: 26,821
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Quote:
Originally Posted by Big_Hitter
I think those older turbos hold up due to the relatively low boost that they are pushing, maybe 5-7 psi? I run 19 in mine. Thinking about a bigger tmic and header so I can go 25psi or so on e85
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Could be, I don't know how much boost mine provides. But if I remember to do it, I can find out and report back.
I have one of those bluetooth dongles that plugs in the OBDII port, and an app ("DASH") on my tablet that provides all sorts of real time data on the engine in addition to any failure codes, and I was looking at the boost pressure last time I used it, but I don't recall the numbers.
What driving condition would you expect max boost? Flat out acceleration from a stop, after enough time for the turbo to spin up?
I'll try to get it to record it to a file so I don't need to try to monitor it while driving.
-ERD50
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10-20-2016, 09:20 AM
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#52
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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Quote:
Originally Posted by ERD50
Could be, I don't know how much boost mine provides. But if I remember to do it, I can find out and report back.
I have one of those bluetooth dongles that plugs in the OBDII port, and an app ("DASH") on my tablet that provides all sorts of real time data on the engine in addition to any failure codes, and I was looking at the boost pressure last time I used it, but I don't recall the numbers.
What driving condition would you expect max boost? Flat out acceleration from a stop, after enough time for the turbo to spin up?
I'll try to get it to record it to a file so I don't need to try to monitor it while driving.
-ERD50
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depends on the tune - max boost is usually 4k rpms I think.
yes, if you run a log you can check max psi
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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11-01-2016, 03:14 PM
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#53
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Sep 2005
Location: Northern IL
Posts: 26,821
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Quote:
Originally Posted by Big_Hitter
I think those older turbos hold up due to the relatively low boost that they are pushing, maybe 5-7 psi? I run 19 in mine. Thinking about a bigger tmic and header so I can go 25psi or so on e85
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Quote:
Originally Posted by ERD50
Could be, I don't know how much boost mine provides. But if I remember to do it, I can find out and report back.
I have one of those bluetooth dongles that plugs in the OBDII port, and an app ("DASH") on my tablet that provides all sorts of real time data on the engine in addition to any failure codes, and I was looking at the boost pressure last time I used it, but I don't recall the numbers.
What driving condition would you expect max boost? Flat out acceleration from a stop, after enough time for the turbo to spin up?
I'll try to get it to record it to a file so I don't need to try to monitor it while driving.
-ERD50
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Yes, I tried cranking ti up, within limits of traffic and the law, and I got 5.9 psi on one try, and 6.2 and 7.6 (holding it in 2nd gear) on two others. The app might not catch the peak though, and I couldn't safely/legally spend more than few seconds all out.
But I'm sure it would go no where near 19.
I drive fairly conservatively most of the time. My poor old 16 year old S-40 probably didn't know what to make of this abuse!
-ERD50
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11-01-2016, 03:16 PM
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#54
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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I didn't think they ran that much boost. On my e85 map I go over 20psi at WOT.
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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11-01-2016, 03:49 PM
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#55
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Moderator Emeritus
Join Date: Apr 2011
Location: Conroe, Texas
Posts: 18,645
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Quote:
Originally Posted by ERD50
Yes, I tried cranking ti up, within limits of traffic and the law, and I got 5.9 psi on one try, and 6.2 and 7.6 (holding it in 2nd gear) on two others. The app might not catch the peak though, and I couldn't safely/legally spend more than few seconds all out.
But I'm sure it would go no where near 19.
I drive fairly conservatively most of the time. My poor old 16 year old S-40 probably didn't know what to make of this abuse!
-ERD50
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How do you accurately measure turbo boost with an electronic device when most boost gauges are indicating pressure within the turbo intake tubing? Is it some kind of electronic interpolation?
On my turbo diesel, I have a pipe tap in the plumbing to the intake where a pressure gauge is installed. I also have a boost valve that limits my boost to 18 PSI to protect the turbo and in the event of overboost condition. Of course this is on a tuned turbo diesel and it's running a variable vane turbo with no wastegate.
__________________
*********Go Astros!*********
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11-01-2016, 04:13 PM
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#56
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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my cobb AP can measure boost
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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11-01-2016, 04:38 PM
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#57
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Sep 2005
Location: Northern IL
Posts: 26,821
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Quote:
Originally Posted by aja8888
How do you accurately measure turbo boost with an electronic device when most boost gauges are indicating pressure within the turbo intake tubing? Is it some kind of electronic interpolation?
On my turbo diesel, I have a pipe tap in the plumbing to the intake where a pressure gauge is installed. I also have a boost valve that limits my boost to 18 PSI to protect the turbo and in the event of overboost condition. Of course this is on a tuned turbo diesel and it's running a variable vane turbo with no wastegate.
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It is just something reported back through the ODB2 port. I use a bluetooth dongle and the "Dash" app on my tablet, and it does the magic.
I have no idea if it is accurate, but since I'm not getting any ODB2 fault codes, and it runs well, I think it's probably right.
Tends to run ~ -10 PSI when I'm decelerating. Not sure what it was at idle, maybe -4? Do those numbers make sense?
https://www.amazon.com/Bluetooth-Dia...ct_top?ie=UTF8
-ERD50
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11-01-2016, 04:45 PM
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#58
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Moderator Emeritus
Join Date: Apr 2011
Location: Conroe, Texas
Posts: 18,645
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Quote:
Originally Posted by ERD50
It is just something reported back through the ODB2 port. I use a bluetooth dongle and the "Dash" app on my tablet, and it does the magic.
I have no idea if it is accurate, but since I'm not getting any ODB2 fault codes, and it runs well, I think it's probably right.
Tends to run ~ -10 PSI when I'm decelerating. Not sure what it was at idle, maybe -4? Do those numbers make sense?
https://www.amazon.com/Bluetooth-Dia...ct_top?ie=UTF8
-ERD50
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Unless the engine control system has some way to measure boost pressure (with a sensor) and covert it to an electrical signal, it's probably being estimated. Usually, at idle, most turbos aren't operating in boost mode at all. I don't know what those numbers represent.
__________________
*********Go Astros!*********
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11-01-2016, 04:45 PM
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#59
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: May 2013
Location: Les Bois
Posts: 5,761
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those are vacuum mode numbers. no biggie.
__________________
You can't be a retirement plan actuary without a retirement plan, otherwise you lose all credibility...
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11-01-2016, 07:11 PM
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#60
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Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Join Date: Sep 2005
Location: Northern IL
Posts: 26,821
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Quote:
Originally Posted by aja8888
Unless the engine control system has some way to measure boost pressure (with a sensor) and covert it to an electrical signal, it's probably being estimated. Usually, at idle, most turbos aren't operating in boost mode at all. I don't know what those numbers represent.
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I don't know. It could be calculated. But I would think the engine control system would need to know manifold pressure/vacuum. So maybe there is a sensor?
In the quick search I did between innings, I didn't find anything.
Go Cubbies (grand Slam - yeaaaahhhhhh!) 7-0 bottom of the 3rd
-ERD50
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