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#31
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Quote:
-Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#32
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Re: Torque converters, according to Chike.
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I was really trying to be brief in my explanation though...I thought about mentioning the stator but left it out to keep things simple. I look forward to reading your write-up. -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#33
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auto vs. manual
An automatic trans. and torque converter combo can be built as strong and nearly as efficient (near 0 loss) with equally hard shifts as a manual.
It can't be done and then sold in a car that someone is going to drive up and down the highway in comfort day in and day out. |
#34
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A funny thing about gearbox'es and losses is that there IS a automatic gearbox and has been for quite a while, wich has LESS losses then a manual !!!
And best of all.....-in a SUBARU The so called CVT or ECVT gearbox is a fully automatic and also STEPLESS gearbox, and has been used in the Justy ECVT model. The concept is very similar to a snowmobile "gearbox" and was developed at DAF in Holland back in the late 60's . The DAF gearbox used a rubber belt between the pulleys, and the "engine" pulley, "dragged" the belt to transfer the power. The new CVT approach instead used a metal belt, and the engine acually PUSHES the belt to transfer the forces. The box is in the "E"CVT electronically controlled and therefore maybe more eff. and configurable than the standard CVT. In late implementations of the CVT tech. they have built in "steps" so the driver can actually "feel" the next gear, this is because many didn't like the "stepless" feel of the CVT. In this way it is possible to "program" as many gears you like and best of all, diffrent "lenght" between every gear! /Sonny
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Internal name: "SuperSonic" -92 ebony black with 170k KM *** -Stress is when you wake up screaming & you realize you haven't fallen asleep yet. *** |
#35
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Found a very good page :)
..check it out
(ctrl-F and search for BMEP , or anything else ) ...And don't forget the turbo calculator ..and HERE are my figures on the SVX in the calculator, notice the incredible VE of 104% /Sonny
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Internal name: "SuperSonic" -92 ebony black with 170k KM *** -Stress is when you wake up screaming & you realize you haven't fallen asleep yet. *** Last edited by Sonar; 12-01-2004 at 07:21 AM. |
#37
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Re: Interesting EG33 output comparison...
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Danny 1994 Silver SVX in hybernation, awaiting for the monsterous awakening (Lebanon) 1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration 2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection. |
#38
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Re: Re: Interesting EG33 output comparison...
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.... seriously.. try to comprehend everything he was trying to do.. look at the time fram all of those engines existed in... all from about the same time. therefore much more comperable to each to each other. considering its MEP compared to other engines during the same time frame, the EG33 is quite efficient, however, always room for improvement
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Greg 97 Red SVX LSi clean 96 Black SVX LSi beater 90 Red Eclipse GSX track ho 99 Ford F250 work horse My Locker |
#39
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Because it is a manual transmission, you lose a lower percentage of torque/hp loss through the transmission, and it can handle HUGE amounts of power... the onhighway one can take 2000lb*ft plus of torque. I think this is a better way to do "automatic" transmissions than the current setup..
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Greg 97 Red SVX LSi clean 96 Black SVX LSi beater 90 Red Eclipse GSX track ho 99 Ford F250 work horse My Locker |
#40
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Re: Re: Re: Interesting EG33 output comparison...
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Danny 1994 Silver SVX in hybernation, awaiting for the monsterous awakening (Lebanon) 1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration 2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection. |
#41
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Re: Re: Interesting EG33 output comparison...
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Mychailo :: 2006 Silver Mitsubishi Evolution 9, E85, 34 psi peak, 425wtq/505whp DJ :: 1995 Laguna Blue SVX L AWD 5MT (sold) Visit my locker SVX Mods: ND iridium spark plugs, Impreza RS fpr, afr tuned to 13.2:1 using a custom MAF bypass, custom exhaust, WRX 5MT w/ STi RA 1st-4th gear & stock WRX 5th gear, Exedy 13 lb flywheel & Sport Clutch, STi Group N tranny & engine mounts, urethane spacers in rear subframe, rear diff mounts, and pitch stopper, SVX Sport Strut Springs (185f/150r), custom 19 mm rear swaybar, urethane swaybar mounts, Rota Torque 17x8", 225/45-17 Proxes 4 tires, Axxis Deluxe Plus organic brake pads. |
#42
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cheapest powermod ever :)
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Internal name: "SuperSonic" -92 ebony black with 170k KM *** -Stress is when you wake up screaming & you realize you haven't fallen asleep yet. *** |
#43
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Quote:
http://www.epinions.com/auto-review-...39EDD8EE-prod4 |
#44
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Quote:
/Sonny
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Internal name: "SuperSonic" -92 ebony black with 170k KM *** -Stress is when you wake up screaming & you realize you haven't fallen asleep yet. *** |
#45
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What is there to compare?
All these engines are virtually the same. They all have a cylinder size of between 500 to 550 cc, all use a four valve, pent roof combustion chamber. All have fuel injection and tuned inlet and exhaust systems. Their torque producing capacity or volumetric efficiency will be very close. Nearly all engines follow the same design.
The difference between them is how the torque is to be used in the car to be produced. If it is to be a commuter or 'shopping trolley', the torque peak is placed at around 4000 rpm to give good low rpm performance and pick-up at legal speeds. If it is to be a sports type car with a 5/6 speed box, it will have the torque peak moved up to around 6000 rpm. Same engine, different HP results. The designed peak torque rpm is set by placing the inlet valve fully opening position (lobe center) at the desired rpm for the torque peak to occure. Within reasion, the torque level will be the same, but as in the sports version, the HP will be higher, because the torque peak is occuring at a higher rpm. To compare these type of engines, the torque curve is the most informative sorce. Is the curve peakey, or long and flat? The higher the rpm that the torque is produced, the peakey the curve is, as more reliance on resonate technology is used, as these are dependant on a particular rpm, the torque will fall off quickly either side of the peak torque rpm. To get around the peakey nature of resonate tuning, we have versions with two tuned inlet tracts, a low range centered around 3500/4000 rpm and a higher speed tract at around 5000/6000 rpm. When this is used along with a variable inlet timing (it moves the lobe center to suit two different rpms) the torque peak can be spread over a wider range of engine speeds. The SVX does it better at the low speed end with the inerta system, as it produces a far higher VE at low rpms than a low speed tuned system can. Numbers don't tell you much about how the car will preform. The torque curve tell you everything. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
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