CurtPalme.com Home Theater Forum

[Joust]

My toyota engine makes more power than them anyway.

[ecrabb]

I could smoke you all in my old pickup... for the first 1300ft, anyway! You guys remember the GMC Syclone? Man, I miss that thing. The looks on the faces of guys in Corvettes, SHOs, Mustangs... damn near anything... was just priceless when I'd completely annihilate them in the first 1/8 mile or so. Stoplights were endless entertainment. I'd have a couple car lengths on them in the first few seconds out of the hole. MAN, that thing would hook up - almost made you dizzy, it was so strong out of the hole. Almost no wheel-spin at all with the AWD. Of course, things were evening out at the quarter-mile mark.

So Joust - what 'simple mods' are you doing to a eek 400HP out of a 20-year old turbo I6 rated for 230HP new from the factory? I mean, you're getting into the same horsepower/displacement that Porsche is selling in a $125k 911 Turbo... and you're doing it with some 'simple mods'?

SC

[Joust]

3inch exhaust removes restriction from the turbo.
Upgrade fuel delivery
open up the air to the turbo. hard piping for the intercooler. Manual Boost controller.
Use a 25% larger AFM (from a lexus v8 ) and 25% larger injectors.
I put Arp head bolts and upgraded to a HKS metal Head Gasket.

I cannot prove it is 400hp but there are tons of guys on the forums that do those mods and dyno it. THe only thing limiting me here is my stock computer hit Fuel Cuttoff. need the piggyback things to bypass that. or a standalone ECU.
this same engine has dynoed at 750++HP but anything over 550hp requires some bottom end changes.

the 2JZ engine, which is the next generation (all aluminum block) has dynoed at over 1000HP.

[Person99]

[CRT_Ben]

[GLHS377]

i was trying not going to let this get into an internet car battle.

but i can't stand by while incorrect information is being given out.
2JZ is a cast iron block. so is the 7MGTE in your car Joust. im in the business to know. they're both unfortunately VERY heavy. engine alone is 590~650 lbs. that is also unfortunately a little bit more than what a 40 yr old all iron big block chevy v8 weighs. which bone stock, puts down more power in LS6 trim(the old, 454 ls6 trim) at over 500 gross crank hp, and you can drop a 400 shot of nitrous on them, no problem. a modern all aluminum ls6 weighs 485 lbs fully dressed and full of oil(A/C PS and everything..) it makes ~410 net crank hp and tq to boot. a the other end of the spectrum is the EJ257. it weighs only 280 lbs fully dressed and puts out stock ~300 crank hp(and tq), and with just an exhaust, intake and tune, is ~370 hp(my personal car, and i know very well the consequences).

twincam, 4 valves per cylinder, forced induction, dry sump, fuel injection etc etc etc, it's all been around since the 1920s.

the only thing new is improvements in metallurgy and electronic controls. saying this engine is better than that engine is ridiculous. they are all designed with inbuilt compromises and design criteria, and used in chassis that may or may not show those compromises or exploit their strong arm.

i think that newer engines are great, but the chassis they're in are getting ridiculously heavy, as an old large hemi plymouth GTX weighs ~200 lbs LESS than the new hemi chargers, and about the same as the JZA80 supras. modern cars are nearly all equipped with garbage struts instead of real suspension, and 98% of the auto industry is relying on cheap tricks of HP and tire technology to get the performance cars get today.

that said, Joust, you seem to be very proactive in your defense of the MA70s. please take it somewhere else a bit as this is a PROJECTOR forum first, not streetfire. nobody said your car was junk, nobody said anything about it. my screename(which i've used for over 10 years) was what started this, and i'm hoping to end it. sorry.


i'm still really curious how they pull 3d for IMAX from existing films. if anyone knows.

[CRT_Ben]

GLHS, not to say we haven't gotten off topic (we certainly have) but I hardly think that anybody had their feelings hurt in this little exchange - most everything here is said tongue-in-cheek and there is VERY little actually flaming or personal attacks that go on - not to say that they don't happen, but between the regulars, it's a pretty warm and fuzzy community. I guess what I'm saying is, don't worry about it

[AnalogRocks]

Yikes look what I started

GLHS377, we are definantly NOT in to flaming other's here. Were a bunch of off toopic loving jokers with no heavy handed moderators. Anytime the MOD's do step in it's usualy for Spam or someone selling a whole projector ( which, is not allowed here. Parts are fine )

So please accept our invitation, feel free to ask/post/ crtique. But please don't think we're trying to start a war. It's not like that and if we seemed that way please accept my apologies on behalf of the forum and its members.

Welcome to the greatest un moderated (mostly) forum on Home Theater and CRT on the net.

By the way the other rule here is: No bashing other people or other forums.

We try to keep it all nice.

[AnalogRocks]

Yikes look what I started

GLHS377, we are definantly NOT in to flaming other's here. Were a bunch of off toopic loving jokers with no heavy handed moderators. Anytime the MOD's do step in it's usualy for Spam or someone selling a whole projector ( which, is not allowed here. Parts are fine )

So please accept our invitation, feel free to ask/post/ crtique. But please don't think we're trying to start a war. It's not like that and if we seemed that way please accept my apologies on behalf of the forum and its members.

Welcome to the greatest un moderated (mostly) forum on Home Theater and CRT on the net.

By the way the other rule here is: No bashing other people or other forums.

We try to keep it all nice.

[ecrabb]

Personally, I'm a big fan of horsepower in all its incarnations! Turbos kick ass. Big V8's kick ass. I love the sound of a big turbo spooling up... In fact, some of my fondest memories from high school were driving my old man's Grand National. God, what a fun car to drive that is! There's something that makes you giddy knowing you can just roast the tires whenever you please. But, I also LOVE a big V8. An LS7 making 500HP at 6000+ RPM is truly a sound to behold. Going to 60MPH in under 4 seconds is F'ing fast.

SC

[GLHS377]

oh, sorry. carry on then, just felt a bit responsible for the massive OT swing.

[AnalogRocks]

[AnalogRocks]

[tony359]

35mm prints are, in theory, much better. RECENT 35mm prints really SUCKS since costs are high, 35mm life is short and customer seems not to see if the print is good or bad.

Please think that almost 100% of movies done today are done by a Digital INtermediate of 2K resolution. I heard that REAL, ON FIELD resolution of 35mm, with an high speed printed copy, and much of the time, poor cinema presentation, do not reach 1K on the screen at a contrast of 1000:1 maximum.

So, since crappy projectionists cannot scratch digital prints (!!) unfortunately what people see is "digital is better".

But as you can see others mistakes can be done on digital, as you saw on your 1.85 presentation. I think that the projector scaler was set wrong.

I work in cinemas since 8 years. I work now in a 11plex and I can say for sure that a good copy, in a good theater, handled correcly with correct lamp, efficient projector and sound system does not have any weak point at all. A copy DOES NOT SCRATCH by itself. The projector DOES NOT SCRATCHS prints if well maintaned. And to correcly maintain a projection system nothing special is required, just projectionists that know what thy're doing.
A two-months projected movie is clean and crisp as the first day, if handled correctly.

The main issue is that "good copies" are so hard to find. Particularly the bigh blockbusters that are printed in big quantity and at the last moment for piracy issues, are often the worst prints you can find on the market...

35mm can do better than Digital. But not at the moment.

Ciao
Antonio

[AnalogRocks]

Thanks Antonio, that's some great insite!

[AnalogRocks]

Thanks Antonio, that's some great insite!

[tony359]

You're welcome!

Oh, and there're no 4K movies at this time. Industry is just starting doing 4K Digital INtermediates. But in my knowledge no 4K movies are already released.

So 4K projectors are useless at this time

Ciao
A

[Spanky Ham]

Tony,
So, you are saying that there is no degradation over time if the film and projection system are maintained properly? I was always under the impression that heat from the projector damaged the film.

[tony359]

No, absolutely. Well, if you have a VERY STRONG lamp, like 6000W or more (common on huge screen, from 54 feet wide and higher) ther will be some degradation in term of COLORS of the print after MONTHS of shows.

With lamps like 4000/3000/2500W and smaller, the heat damage is minimal. Keep in mind that if you have a powerful lamp like 7000W you must have some devices that cools the gate and cut away infra-red from the light so that heat on print is reduced.

However, NO: if projection system is well maintained, you can run a 35mm prints for MONTHS with absolutely NO degradation on the image or sound. This is not an opinion, is a statement. I showed some summer movies (Summer is not a good moment for cinema in Italy) for two months, and at the end of life you CANNOT see scratches, dirt or something on the screen. Perhaps just some more dirt around the splices but, trust me, just few black sposts. At the end of this two months, even sound is the same. Dolby Digital is printed on the film and a good print is reading perfectly after months and months.

In the real world where prints are shown for 2-3 weeks, you should see always perfect projections. Who says that it's normal that after two weeks the prints are scratched and dirt is just someone that has NO IDEA of what he's doing.

And with "well maintained" I mean just a bit of maintenance. Blow projector heads each show (5 seconds), clean gates at the end of day (30 seconds) and keep your rollers free to spin (10 minutes for week?).
This little attention will keep your prints free of scratches and dirt. There are of course others maintenance operation to be done but if the projectionists are done their job correctly a 6 month tech visit should be enough to perform any other adjustments.

You know, if you're running films in a dirty place, without air cleaning, with no mainteinance... rollers starts locking, prints start shedding touching them and dirt will lock others rollers and clugh sound readers and lenses. Platters not calibrated will wrap the print, perhaps some shaft will bend and perhaps a bad splice will break having print beak in the projector head and pull sound readers (so that after this Digital will not work anymore and analog will sound sh*t)... Here your scratched prints and your dirt!

Digital will be no different in this bad theaters: you will just find different issues. Bad focus, DLP alignment, proportions, scaling...

Ciao
A

[AnalogRocks]

Trading analog problems for digital. Yep local multiplex with un-trained monkey in the projection booth.

That's what I miss about the cinemas we use to have here downtown. The projectionist was an ardent professional like yourself Tony. He new what he was doing and I remember seeing the 1997 re-release of Star Wars there. The presentation was awesum

I went to a multiplex to see Star Wars with some other friends the next week and the presentation was terrible. When I looked into the projection booth there was a couple of teens not paying attention to the projector or the fact it wasn't properly aligned.

I called the THX number and reported them. Not sure if it worked but a few weeks latter they didn't list their theater as THX anymore.

Edit: late night spelling erros

[AnalogRocks]

Trading analog problems for digital. Yep local multiplex with un-trained monkey in the projection booth.

That's what I miss about the cinemas we use to have here downtown. The projectionist was an ardent professional like yourself Tony. He new what he was doing and I remember seeing the 1997 re-release of Star Wars there. The presentation was awesum

I went to a multiplex to see Star Wars with some other friends the next week and the presentation was terrible. When I looked into the projection booth there was a couple of teens not paying attention to the projector or the fact it wasn't properly aligned.

I called the THX number and reported them. Not sure if it worked but a few weeks latter they didn't list their theater as THX anymore.

Edit: late night spelling erros

[tony359]

THX means nothing since many years ago unfortunately.

At the beginning it was a serious way to certify the quality of the presentation. Then since cinema owners pay for the re-certification, THX was in a position where the owner will not pay again if they do not re-certificate again the screen. This is my opinion of course.

I worked in a THX screen. A beautiful screen, well maintained. But I had NO THX check in 4 year. Once I reported a very big problem of a THX screen to THX. THX reply me with something like "we do not have anyone following international theaters, we'll se what we can do"... They didn't do anything of course.

About your experience, remeber that print is made by polyester: once scratched you cannot repair it...

A word on cinema techs too: it's not so easy to find guys that know exaclty what they're doing. And setup a screen (particularly a sound system) is not as easy as someone think!

However in my opinion the main issue with cinemas is, as you said, un-trained monkeys. A good tech can't do miracles if the projection booth is run by monkeys.

Ciao
A