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Old 09-02-2017, 01:16 PM   #1 (permalink)
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Spirit of Eco. hp vs top speed comparo

here is a comparison of top speeds published for vehicles with the same 150-brake horsepower as Spirit:
*1991 Becker-Lyon,BMW Motorcycle LSR Streamliner..........................211
*1985 Renault Alpine GTA V-6................................................. .......146
*1990 Opel Calibra 16-V................................................. ...............139
*1991 Opel Astra............................................. ............................135
*1996 Renault Sport Spyder............................................ ...............131
*1988 Peugeot 405i16............................................ .......................131
*1967 Toyota 2000 GT................................................ ..................128
*1980 Alfa Romeo Alfetta GTA Turbo............................................. ...127
*1983 Toyota Supra............................................. ........................127
*1988 Eagle Premier........................................... ..........................126
*1970 Datsun 240Z.............................................. ........................122
*1985 Callaway VW GTI Turbo............................................. ...........122
*1993 Caterham Super 7................................................. ..............114
*1996 Plymouth Voyager SE................................................ ...........110
*1954 Chevrolet Corvette Coupe............................................. .......109
*1990 Lincoln Town Car............................................... .................109
*2007 Spirit,I-10,eastbound,trailing US GOVT DHS#32620...................108
*1991 Dodge Caravan SE................................................ ..............107
*1954Chevrolet CorvetteRoadster.................................. ................106
*2012 Spirit,130-Club,USFRA World of Speed,trap speed @ 1-mile........105
*1993 Nissan Quest............................................. ........................105
*1989 Mazda MPV V6 3.0i.............................................. ...............104
*1989 Chevrolet Astro LT................................................ ..............97
*1988 Range Rover............................................. .........................97
*1994 Toyota T-100............................................... .....................96
*1949 Buick Roadmaster Riviera (calculated).....................................8 4
*1992 Hummer H1................................................ ........................71
*1939 GM Futurliner........................................ ..............................40

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Last edited by aerohead; 09-02-2017 at 01:17 PM.. Reason: correct typing
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Old 09-03-2017, 02:28 PM   #2 (permalink)
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little jona - '91 Dodge D 250 first gen cummins LE
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Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 24 AUTO
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CdA # Vs speed should be somewhat the same as spirit ?(not accounting for the variability of peek power's [150BHP] rpm/and or final drive raito matchingfor top speed) slower =higher CdA#, faster =lower CdA#. Nice way to express what kind of affect CdA has.
---
Stock to stock comparison Im faster than the H1 @92.5(gps )@2500rpm 76^3mm fule per combustion event@ 160BHP. That is mostly a final gear raito Vs governor(rpm limit) cause /effect. 6.2L NA IDI has a higher rev limit (3500rpm @155hp),but lower gear(th400 Trans 1:1* Dif.2.73:1 *hub 1.92:1 =5.2416:1 final) *36" or 37" tire. compaired to my 5.9L TDI Cummins (518 trans .69:1 *diff3.55:1=2.4495 final and 160BHp @governed 2500rpm) *31.7" tire. Were you place the power has more effect than the volume.
The 2nd generation H1 ('94 newer) tops @85 ,95mph NA , turbo respectively. Gen1Vs gen2 6.5 L Diesel 170 hp @ 3400 RPM ('97) .75 OD (4L80) *2.56 diff*1.92hub=3.68 final. (Taller diff +OD) notice more top speed on gen2 . Gen2 hit the HP wall/ speed limit. Gen1 hit the governor speed limit(yes the governor from personal experience). Notice a difference on gen2 NA Vs turbo. This is an example of the importance of were you place the power Vs how much. With a 3500 governor3.68 final =169mph minus CdA and HP lacking/miss-placed penalties =85 or 95
I dont remember did you regear spirit for the missed 126mph mark.
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Old 09-03-2017, 05:29 PM   #3 (permalink)
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Quote:
Originally Posted by aerohead View Post
*1996 Plymouth Voyager SE................................................ ...........110
*1954 Chevrolet Corvette Coupe............................................. .......109
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 09-03-2017, 05:41 PM   #4 (permalink)
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1970 911 E Coupe (911)
https://www.excellence-mag.com/resou...4#.Wax1dXMpDqA
Quote:
HORSEPOWER 155 @ 6200 rpm

SPEED 137 mph manual/134 mph Sportomatic
I think mpg is around 20 hwy, will try and verify with a source.

Low 20's according to the forum.

http://forums.pelicanparts.com/porsc...-911s-e-t.html


I was getting 26 mph mostly hwy with my 175 hp 1977 911s, 2.7L CIS (140 mph).

Some guys claim 30-35 mph with slightly later 911cs MFI 3.2L (150 mph).
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1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
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Old 09-09-2017, 12:21 PM   #5 (permalink)
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regear

Quote:
Originally Posted by gumby79 View Post
CdA # Vs speed should be somewhat the same as spirit ?(not accounting for the variability of peek power's [150BHP] rpm/and or final drive raito matchingfor top speed) slower =higher CdA#, faster =lower CdA#. Nice way to express what kind of affect CdA has.
---
Stock to stock comparison Im faster than the H1 @92.5(gps )@2500rpm 76^3mm fule per combustion event@ 160BHP. That is mostly a final gear raito Vs governor(rpm limit) cause /effect. 6.2L NA IDI has a higher rev limit (3500rpm @155hp),but lower gear(th400 Trans 1:1* Dif.2.73:1 *hub 1.92:1 =5.2416:1 final) *36" or 37" tire. compaired to my 5.9L TDI Cummins (518 trans .69:1 *diff3.55:1=2.4495 final and 160BHp @governed 2500rpm) *31.7" tire. Were you place the power has more effect than the volume.
The 2nd generation H1 ('94 newer) tops @85 ,95mph NA , turbo respectively. Gen1Vs gen2 6.5 L Diesel 170 hp @ 3400 RPM ('97) .75 OD (4L80) *2.56 diff*1.92hub=3.68 final. (Taller diff +OD) notice more top speed on gen2 . Gen2 hit the HP wall/ speed limit. Gen1 hit the governor speed limit(yes the governor from personal experience). Notice a difference on gen2 NA Vs turbo. This is an example of the importance of were you place the power Vs how much. With a 3500 governor3.68 final =169mph minus CdA and HP lacking/miss-placed penalties =85 or 95
I dont remember did you regear spirit for the missed 126mph mark.
I ran 'rubber' gearing in 2012-2016,to get the rpms down a little.This gave it gearing for 156-mph @ the 5,500-rpm redline.It hurt acceleration at Bonneville,but I was happy to gain 9-mph in the mile,whereas Mini Coopers and Mazda-3s were losing 18-mph/6-mph respectively.The average 34-mpg @ 65-mph was nice too!
The passenger car tires,synthetic gear lube,and semi-syn trans oil are probably giving some speed,as I'm exceeding what Hucho's formula predicts.I've got to 114-mph since, on the GPS,and it's as accurate to the mile per hour as the SCTA timing equipment at Bonneville.
I'll have more narrow rear tires at DARKO,than in 2014.Theoretically,that would show up when measuring drag.

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