It's a great disappointment to me that even a DIY audio forum ultimately seems to be occupied by trophyism in one form or another. I'd really hoped for better. I gave it my best shot here to post some honest stuff that might benefit the genuine pursuit of audio. But that's it - I'm out of this forum, it was mostly a hard slog for little gain. Knock your socks off guys, and thanks for all the fish.
Don't blame audio for being incapable of changing human nature and please stick with us. Your posts are much appreciated and often provide a sane counterpoint.
It's a great disappointment to me that even a DIY audio forum ultimately seems to be occupied by trophyism
in one form or another. I'd really hoped for better.
The "ignore" option is essential, and is there to be used.
Oh come one Scott, that's an old ambassador isn't it?
Funny thing those GT-Rs, they still beat the Corvettes at the
roundy round tracks and magazine reviews.
There is a shop not to far from here, that races them. Their
whole showroom parts lobby is filled with more trophies than
one would believe. They are very high end, do mostly ricers
with multi turbos etc. The place is just overflowing with race cars.
One block over from them is Multi-world record holder racing engine
guy/drag boat guy. At end of street used to be World Class Test Equipment
guy and that little area has very interesting little businesses too.
Then there is the I almost got a Velodyne powered sub but the guy told me they
couldn't be calibrated any longer after Velodyne quit servicing them. 🙁
Still looking for a Sunfire True sub (small and wife won't complain about size).
Currently working on a +700hp/700tq BBC for my little Chevelle. 🙂
Funny thing those GT-Rs, they still beat the Corvettes at the
roundy round tracks and magazine reviews.
There is a shop not to far from here, that races them. Their
whole showroom parts lobby is filled with more trophies than
one would believe. They are very high end, do mostly ricers
with multi turbos etc. The place is just overflowing with race cars.
One block over from them is Multi-world record holder racing engine
guy/drag boat guy. At end of street used to be World Class Test Equipment
guy and that little area has very interesting little businesses too.
Then there is the I almost got a Velodyne powered sub but the guy told me they
couldn't be calibrated any longer after Velodyne quit servicing them. 🙁
Still looking for a Sunfire True sub (small and wife won't complain about size).
Currently working on a +700hp/700tq BBC for my little Chevelle. 🙂
Thanks JCXI don't know what speaker magnet "hard" ferrites look like at MHz - but at low, audio frequencies when fully saturated, "magnetically charged" they look pretty much like just so much empty space
all the magnetic dipoles are oriented, "stuck" in that orientation to generate a strong magnetic field
ferrites used for inductors, filters are "soft" - have randomly oriented, mobile magnetic domains giving useful u_r and loss terms at the frequencies and low magnetic fields they are intended to operate in
Hi,It's a great disappointment to me that even a DIY audio forum ultimately seems to be occupied by trophyism in one form or another. I'd really hoped for better. I gave it my best shot here to post some honest stuff that might benefit the genuine pursuit of audio. But that's it - I'm out of this forum, it was mostly a hard slog for little gain. Knock your socks off guys, and thanks for all the fish.
I regularly read your posts. Your posts in "vinyl coefficient of friction" were very informative. Someone has said "Even if you are a minority of one, the truth is the truth". Please stay with us. 🙂
regards.
So that is what they call 'Chevy's' in Europe, Opel running gear. Not bad. I have had a couple of Opels, one in Europe, and one in the USA I liked both.
I didn't think the low end torque was too bad though....
...Just trying to raise the HP a bit and maybe another
500 - 1000 RPMs. Above 6800 RPM these really big
valves start creating problems.
So we start lightening up the valve train and use other specialized parts.
(Lighter and lighter) times (higher and higher [RPM]) times (precision fitting)
equals an exponential cost function.
With a deceptively smooth idle at 700 RPM with A/C for southern comfort.
After this my next project is putting it's little brother,a 1969 Vette 327ci V8,
that will wind up to 8000 RPMs in my 2001 Toyota 4-runner SR5. It's for towing and
going. That and a TruTrac differential is all it really needs.
...Just trying to raise the HP a bit and maybe another
500 - 1000 RPMs. Above 6800 RPM these really big
valves start creating problems.
So we start lightening up the valve train and use other specialized parts.
(Lighter and lighter) times (higher and higher [RPM]) times (precision fitting)
equals an exponential cost function.
With a deceptively smooth idle at 700 RPM with A/C for southern comfort.
After this my next project is putting it's little brother,a 1969 Vette 327ci V8,
that will wind up to 8000 RPMs in my 2001 Toyota 4-runner SR5. It's for towing and
going. That and a TruTrac differential is all it really needs.
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I really like the new gen of engines which have high torque at low rpm and hold that high torques across the rpm range. Esp notable are the supercharged and turbo engines. Like a ZR1 engine... you nail it and the TRQ jumps to max immediately. Even the Bentley W12 twin turbo can make a lot of HP and torque -- 650 #/ft at 1600 rpm. Phew. These are CAN-AM numbers. Yes, the old engines were great. But the new generation of engines are simply amazing.
RWHP/TRQ
THx-RNMarsh

THx-RNMarsh
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We've tried to divert the car talk, but I guess for some it can't be resisted. I should start telling my AMC Gremlin stories again.
Ya, wouldn't want to get off topic. 🙄
Internal combustion engines will never have good low end torque, while this is standard equipment with electric drive.
To be fair, the current trend of serially turbocharging internal combustion motors has tremendously improved the amount of availble torque, has enabled it to become avilable even at less that 1.200 rpm and still extend to well above 6.000 rpm if required.
I am impressed by the current crop, and I do not refer to expensive hand built cars, but the typical average driver fare. Because of this one can buy a car with even very solid power output (in relation to its weight) for very reasonable money. Ford's Focus ST comes to mind, parts easily available, maintenance costs low, taxes relatively low, but still available in Europe for €25k, delivering 250 bhp with 360 Nm of torque. It goes like stink.
I am a believer in electric cars as a general concept. Their quirk is that their range is still limited for any cruising, the problem being the batteries, both in terms of energy storage capacity, and the time required to charge the lot, and of course, the lack of any standard charging system.
I read about charging systems with very short charging times, like say 30 minutes to fill up, but we all know the trade-off - fast charged batteries last less than slowly charged batteries, which makes the more expensive in terms of maintenance. Either something is done about that, or else the induytry standardizes around several battery packs which we can exchange on the spot, leaving ours and taking the pre-charged ones stored in the fillinf station. Recharging is reduced to effectively zero, you just need the time to exhange the packs. But making any industry standardize about anything is devil's work.
I read about charging systems with very short charging times, like say 30 minutes to fill up, but we all know the trade-off - fast charged batteries last less than slowly charged batteries, which makes the more expensive in terms of maintenance. Either something is done about that, or else the induytry standardizes around several battery packs which we can exchange on the spot, leaving ours and taking the pre-charged ones stored in the fillinf station. Recharging is reduced to effectively zero, you just need the time to exhange the packs. But making any industry standardize about anything is devil's work.
Here in EU, the there's lots of new small cars with 1000cc turbo charged engines that deliver similar performance to 1600 to 1800 cc engines but with lower fuel consumption. Of course, if you are into muscle cars, this is chicken sh1te stuff. Nevertheless, a useful application of the technology that delivers improved driving pleasure with reduced environmental impact.
Quite so, Andrew. Turbo chargers offer another advantage, a cleaner exhaust gas mix. A great help in meeting ever more demanding EU exhaust laws.
But take it easy with "chicken shite stuff". It all boils down to the power/weight ratio, and since European cars are smaller and lighter than big US autos, same effects can be gained using less power. There so much more to a car that merely power, road holding being just one example. European cars usually outperform US cars on road holding, cornering and general driving feel, at least in the mass market.
And now, Europeans have finally started producing top notch models for still reasonable money, but capable of taking on just about anybody at the price. I can't wait to see Ford's new Focus RS model, using a turbocharged 2 (or 2.3 litre) litre engine delivering 340 bhp, but also using a full four wheel drive platform. This solves one of the great problems of transferring all that power on the road without too much loss.
But take it easy with "chicken shite stuff". It all boils down to the power/weight ratio, and since European cars are smaller and lighter than big US autos, same effects can be gained using less power. There so much more to a car that merely power, road holding being just one example. European cars usually outperform US cars on road holding, cornering and general driving feel, at least in the mass market.
And now, Europeans have finally started producing top notch models for still reasonable money, but capable of taking on just about anybody at the price. I can't wait to see Ford's new Focus RS model, using a turbocharged 2 (or 2.3 litre) litre engine delivering 340 bhp, but also using a full four wheel drive platform. This solves one of the great problems of transferring all that power on the road without too much loss.
Cars are OK.
Did I already mention my neighbor swapped out his CLS 63 AMG a week ago, for a Bentley Flying Spur sedan ?
Want a piccy ?
(Runs a body repair/paint shop, with his two sons, the mrs. does the paperwork. The right half of the shop is occupied by a 40ft cigarette power boat, 4 x 502CI EFI marine block Chevy. Each time my car is hit by some stupid jerk, they handle the repairs, take care of the paperwork circus show, and slip me a Good Fella envelope afterwards)
A ZO6 with a $4000 Lingenfelter package beats the S out of any Nissan.
Doesn't even require a roots supercharger exchange by big buck performance players as Callaway and the likes.
(my neighbor further up the street is down to his 2nd GT-R, currently a Nismo)
Jacco,
the Corvette has really turned into a beautiful car for the first time in a long time and as you say is plenty fast stock and much more than anyone needs on the road modified. I have a friend who has one of the earlier GT-R and though they may be fast they surely don't look the part. On the sound side of things I have had the loud hot rods and these days I would do all I could to go just the opposite and make a stealth car, as quite as possible without hurting the performance. I think to myself every time I hear one of these loud Ferrari or other sports cars that every cop within blocks knows you just put your foot into it, been there done that. Now I just want to drive without attracting any attention. A little thought into the tuning of the exhaust system just like a speaker enclosure and you can have it quite without causing lots of back pressure on the exhaust side of things.
the Corvette has really turned into a beautiful car for the first time in a long time and as you say is plenty fast stock and much more than anyone needs on the road modified. I have a friend who has one of the earlier GT-R and though they may be fast they surely don't look the part. On the sound side of things I have had the loud hot rods and these days I would do all I could to go just the opposite and make a stealth car, as quite as possible without hurting the performance. I think to myself every time I hear one of these loud Ferrari or other sports cars that every cop within blocks knows you just put your foot into it, been there done that. Now I just want to drive without attracting any attention. A little thought into the tuning of the exhaust system just like a speaker enclosure and you can have it quite without causing lots of back pressure on the exhaust side of things.
Jacco,
the Corvette has really turned into a beautiful car for the first time in a long time and as you say is plenty fast stock and much more than anyone needs on the road modified. I have a friend who has one of the earlier GT-R and though they may be fast they surely don't look the part. On the sound side of things I have had the loud hot rods and these days I would do all I could to go just the opposite and make a stealth car, as quite as possible without hurting the performance. I think to myself every time I hear one of these loud Ferrari or other sports cars that every cop within blocks knows you just put your foot into it, been there done that. Now I just want to drive without attracting any attention. A little thought into the tuning of the exhaust system just like a speaker enclosure and you can have it quite without causing lots of back pressure on the exhaust side of things.
"...They don't look the part". That's the sweetest part of the deal, to be a sleeper, somebody you'd never expect to be even able to do anything, who then proceeds to cream a lot people. Here I am, sitting in my li'l ol' Yugo, and a "road warrior" in his new BMW stops alongside, and gives me a pitiful look of scorn. The light changes and I enjoy his bewlidered look in my panoramic back view mirror. Or some twit in a brand new Alfa Romeo drives dangerously close to my back, presumably trying to scare me. It's a winding road, so I just chill and step on it, and inside 3-5 minutes he learns that he hasn't a hope in hell of ever catching up with me. These are the priceless moments of owning such a car, a complete one-off, all hand made and tuned to the hilt. My fuel injection system is actually better than most race cars hace, the man who designed it worked on it for a whole month to get it just right.
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It's all good stuff. Comes down to personal preference, budget etc.
As I get older, I can no longer get into small flat cars,
vette's, Nissin, Acura, their EU counterparts..it's got
to be older coupes, SUV, Jeep, pick-up.
One of my all time favorites to drive was the final incarnation
of the Mazda RX-7, aluminum body, twin turbo. Had great
curves, very light weight. I'd take them for test drives and
before I knew it, I'm at 100 MPH round gentle curves in
a 17 Mile Drive like course/streets here in Tejas.
I was pleased to learn from an former F1 driver that it
was his choice in cars too. And no I never bought one
not functional enough.
Years later I ended up buying a little Acura GS-R which fit
a small combos amps, guitars, and PA, a Chocolate Lab and
a gal in the passenger seat. Functional and fun.
Thanks for the bandwidth.
As I get older, I can no longer get into small flat cars,
vette's, Nissin, Acura, their EU counterparts..it's got
to be older coupes, SUV, Jeep, pick-up.
One of my all time favorites to drive was the final incarnation
of the Mazda RX-7, aluminum body, twin turbo. Had great
curves, very light weight. I'd take them for test drives and
before I knew it, I'm at 100 MPH round gentle curves in
a 17 Mile Drive like course/streets here in Tejas.
I was pleased to learn from an former F1 driver that it
was his choice in cars too. And no I never bought one
not functional enough.
Years later I ended up buying a little Acura GS-R which fit
a small combos amps, guitars, and PA, a Chocolate Lab and
a gal in the passenger seat. Functional and fun.
Thanks for the bandwidth.
A ZO6 with a $4000 Lingenfelter package beats the S out of any Nissan.
Doesn't even require a roots supercharger exchange by big buck performance players as Callaway and the likes.
(my neighbor further up the street is down to his 2nd GT-R, currently a Nismo)
I had that done to a 427 Z06.... cam from Lingenfelter and upper valve train replaced and full length long tube headers, dyno tuned....... the quickest car off the line I ever owned..... needed a neck brace to drive it. I would be stopped on a two lane back county road near by my house and tell the passenger to lean forward and put their hands on the dashboard and try to keep them there. It always slammed the passenger back into their seat.
-RNM
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