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#16
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yeah
i realize that.
but turbos increase back pressure. nothing is free. i suppose that turbos are simpler to maintian since there is no drive mechanism. but as far as effeciency, i dont think there is much difference. if there were, dont you think the dragsters would use turbos? there were a few back in the sixties but they didnt last. i mean they just disappeared. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#17
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Common application on Snowmobiles
I've seen ten or twelve sleds with the turbo in the rear. The sleds are setup like that so the air is nice and cool by the time it gets to the motor without use of an intercooler. I don't see the use of that on this car as it has no snow to cool the air.
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Owen 87 300TD 603 I-6 94 Jeep XJ I-6 4.0 (see the pattern) 89 750il seventy-two hundred feet above sea level (kinda cold up here) |
#18
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But they are more efficient that a supercharger. Their tradeoff is complexity of the system, expence, and lag. |
#19
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so you are
saying that turbos are against drag racing rules?
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#20
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#21
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lag is not
an issue when you take off after raising the rpm of the engine to whatever they use. 3000 rpm? i think that would be quite sufficient to spool the turbos.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#22
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With a stick shift, don't they just drop the clutch after having revved it to say 5000 rpm for a lot of those cars? I know my buddy launches at 5000 in his Mustang. That for sure won't build up the boost.
For autos, it would since you would be breaktorqing it. As to the lag, I wonder. If you have a large turbo, it takes forever to spool up but is great for the upper range. Go to a small turbo and it works wonders for the low end but runs out of steam at the top. I think that is why the new Powerstroke engine that Ford has is running a big and little combo for turbo.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#23
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The Republic P-47 Thunderbolt and the Lockheed P-38 Lightning both had turbos mounted way back in the tail. Then again, airplanes don't have the lag issues that cars do.
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1982 300SD |
#24
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that is kinda lame, I can see someone parking in a parking lot with the "turbo" steal me stickers and coming back and their turbo's gone.....
wouldn't take much to slide in on a creeper with some tools..
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RIP: 80 300SD RIP: 79 450SEL 2002 E430 4matic (212,000km) 2002 ML500 'sport' ____________________________ FACEBOOK: PANZER450 |
#25
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Although I have seen some Power steering systems and air conditioning compressors driven off of the driveshaft...
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RIP: 80 300SD RIP: 79 450SEL 2002 E430 4matic (212,000km) 2002 ML500 'sport' ____________________________ FACEBOOK: PANZER450 |
#26
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I wouldn't bother with the stickers.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#27
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#28
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About efficiency, I put that turbo in the gasser SAAB. I used 9.2:1 pistons (stock for non-turbo) instead of 7.2:1 which were stock in the turbo. Also used the non-turbo camshaft, since this was used in the later turbo models which had knock detection.
The combination took me from 27mpg highway to 32. |
#29
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#30
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As far as this system goes, it will be laggy as hell. However, once spooled it will help. It could be done much better though.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons ) white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png Last edited by ConnClark; 03-20-2006 at 12:47 PM. |
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