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01-15-2010, 01:47 PM
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#1
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Join Date: Jul 2006
Location: unknown
Posts: 2,776
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Discuss: National MPH 55
http://www.good.is/post/you-can-drive-55/?gt1=48001
1. Ive seen truck drivers that need to be doing 75-80mph just to make it up a high grade
2. Wonderful change the speed limit all you want but if the traffic flow is all doing a higher speed then that didnt solve anything. Cant be pulled over for going with the flow of traffic.
3. Means i would just be chugging along in 6th gear
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2000 Pewter Trans am, M6, SLP Lid,LS6 intake,Kooks 1 7/8" Long tube header,Classic Chambered Powersticks, hurst,off road X-pipe, Strano springs & Koni's, Monster level 2 clutch, HPtuners wide band tuned and a homemade ram air box sealed off.
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01-15-2010, 01:52 PM
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#2
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,938
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Lots of places on the GSP are 55, and the flow doesn't change much at all.
If they enforced the current speed limits versus just letting the "flow of traffic" dictate who gets pulled over by troopers, then maybe the govt. wouldn't have to save us from ourselves.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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01-15-2010, 03:29 PM
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#3
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,216
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That fuel efficiency chart is BS. Every car or truck I've had with overdrive got it's best gas mileage at 65-70 mph. 55 mph will result in a loss of gas mileage and an increase in gas/oil use. And the newer 6 speed vehicles would probably get the mileage at 75-80 mph.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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01-15-2010, 04:44 PM
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#4
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Join Date: Aug 2008
Location: Sewell,NJ Washington Township
Posts: 2,416
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Wow that chart is a joke. 55 is way to slow for anyone who travels everyday for work long distances. just driving on a highway that slow would make me want to kill myself
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1995 Pontiac Firebird - V6 few mods
1988 Mustang - supercharged, heads/cam etc...
2012 Mustang - 5.0 6spd / 437rwhp 420trq
Quote:
Originally Posted by LTs1ow
Verts are gay and stalkers ride in them.
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01-15-2010, 04:58 PM
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#5
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Join Date: May 2008
Posts: 817
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my car probably gets best gas mileage at 55-60ish. stupid automatic.
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|2000 Trans Am|T56 swap|Bolt Ons| Suspension|
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01-15-2010, 05:20 PM
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#6
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Join Date: Dec 2009
Location: milltown
Posts: 1,497
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with a 5spd v6 prolly around 65 70 is the best millage anywhere above it a big decrease in economy. just keep the rpms bellow 2000 and you should be fine. i think going 55mph on the highway is dangerous, if everyone is going 70+ people will have to swerve and whatnot to get out of your way witch puts everyone in danger.
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2002 Camaro Sunset Orange Mettalic, V6, 5spd, bilstein HD shocks and struts, eibach pro lowering kit, eibach f/r sway bars, lakewood PHB, UMI 2 point subframe connectors, energy suspensions poly master bushing kit
daily econobox and first car
1986 IROC-Z, T56, MGW shifter, Heads, Cam, Holley Stealth Ram 350, t-top, tubular LCA with relo brackets, adjustable PHB, belltech sway bars, ground control weight jacks, SLP mid length headers, 3in w/borla XR1, RIP 3 10 bolts, 12.7 @ 109 so far.. atleast its faster than stock  SOLD
1971 Camaro LS3/T56/9in, cam only and still carbed, RIP 2 10 bolts, 11.62@121
03 Blazer 2 door - salt sponge
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01-15-2010, 05:25 PM
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#7
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,216
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Quote:
Originally Posted by creeper
my car probably gets best gas mileage at 55-60ish. stupid automatic.
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I have the automatic also and 65-70 is definitely the best speed for fuel economy. Most engines sweet spot is around the 2200-2500 rpm range. If you change rear gears it will start to throw things off.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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01-15-2010, 05:32 PM
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#8
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,694
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that opinion is so outdated. Cars these days are most efficient at a higher speed than once before.
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-15-2010, 06:59 PM
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#9
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Join Date: Jul 2006
Location: unknown
Posts: 2,776
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When i had 3:42's i got my best gas milage doing 65mph on cruise control from NJ - northern VA got 32mpg
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2000 Pewter Trans am, M6, SLP Lid,LS6 intake,Kooks 1 7/8" Long tube header,Classic Chambered Powersticks, hurst,off road X-pipe, Strano springs & Koni's, Monster level 2 clutch, HPtuners wide band tuned and a homemade ram air box sealed off.
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01-15-2010, 09:36 PM
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#10
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MIR
Join Date: Jul 2005
Posts: 9,692
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Quote:
Originally Posted by DaSkinnyGuy
http://www.good.is/post/you-can-drive-55/?gt1=48001
1. Ive seen truck drivers that need to be doing 75-80mph just to make it up a high grade
2. Wonderful change the speed limit all you want but if the traffic flow is all doing a higher speed then that didnt solve anything. Cant be pulled over for going with the flow of traffic.
3. Means i would just be chugging along in 6th gear
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Right...
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01-15-2010, 09:53 PM
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#11
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Join Date: May 2007
Location: Jim Thorpe PA
Posts: 2,134
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^^ haha yeah there just gonna pick a person outta the group usu the first or last. Didn't they try this once already??
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01-15-2010, 10:36 PM
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#12
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Join Date: Oct 2008
Posts: 170
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im at school in michigan and the speed limit is 70 everywhere lol, New jersey should take some notes
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1988 Iroc-z Camaro 5.7 Tuned Port Injection
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01-15-2010, 11:37 PM
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#13
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Join Date: Nov 2009
Location: Manalapan, NJ
Posts: 66
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That chart is so completely asinine. It's a pet peeve of mine that people actually believe that.
I know that when it comes to my '01 Malibu, I get my best mileage right around 70 mph. With the Camaro (3.42's), I think it's 65-70.
Last edited by HW72; 01-15-2010 at 11:38 PM.
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01-15-2010, 11:56 PM
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#14
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Join Date: Jul 2008
Location: NJ
Posts: 819
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Wouldn't this be hard on the already-slow morning traffic? When the average car made 110 hp and looked like boxes maybe 55 mph was ok, but not today.
This is purely to generate revenue in my opinion. I bet if this happens NJ still keeps the "fines doubled" aspect of the current 65 mph zones.
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01-16-2010, 12:17 AM
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#15
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Join Date: May 2008
Posts: 817
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Quote:
Originally Posted by JL8Jeff
I have the automatic also and 65-70 is definitely the best speed for fuel economy. Most engines sweet spot is around the 2200-2500 rpm range. If you change rear gears it will start to throw things off.
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do you have 2.73's?
i usually try to keep my car below 2k, mainly for drone reduction purposes, but it also seems to help with gas. never really done a long enough 70mph trip to know for sure i guess though.
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|2000 Trans Am|T56 swap|Bolt Ons| Suspension|
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01-16-2010, 12:25 AM
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#16
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Join Date: Dec 2008
Location: NNJ
Posts: 1,489
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id say my best is around 70-75mph although i have yet to do a pure highway run without ripping through a gear or two to 'merge' with traffic  6spd ftw!
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1997 Camaro Z28 - 355 LT1, T56, CC503, LTs, ORY, Bald Eagle-back exhaust, !emissions, Lingenfelter CAI, EWP, !CAGS, BMR LCAs, UMI PHB, Koni Str.t/Koni SA, C5 Z06 front / LS1 F-body rear brake swap, factory hurst with short stick
2014 2LT Cruze 2.0 Turbo Diesel
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01-16-2010, 10:49 AM
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#17
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Join Date: Dec 2005
Location: Boston/North
Posts: 9,214
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Hell, my 05 Dakota is at 2k rpm at 70mph, there's nothing being lost there
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Quote:
Originally Posted by BonzoHansen
dumbass.
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01-16-2010, 11:39 AM
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#18
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13 Second Club
Join Date: Jul 2004
Location: Ewing/Galloway, NJ
Posts: 3,904
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yeah... my jeep shifts into od at 45mph, but ill still do 80 on anything that even resembles a highway
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EB
99 Riviera, Bone stock, 14.34 @ 96 "Walking 5.0's in luxury" RIP
95 Cherokee, Bone stock 16.2 @ 83 "Treeing your 3rd gen and beating it to the line despite trapping less....and looking better"
93 TA, Bone stock, 13.8 @ 100 "Beating ****** drivers in ****** LS1's"
https://www.facebook.com/groups/285090241699967/
R.I.P. Tia 
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01-16-2010, 04:24 PM
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#19
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,216
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Quote:
Originally Posted by creeper
do you have 2.73's?
i usually try to keep my car below 2k, mainly for drone reduction purposes, but it also seems to help with gas. never really done a long enough 70mph trip to know for sure i guess though.
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Nope, 3.23's. My old 93 Indy Pace Car with automatic and 3.23's and Powerdyne superchager would get 26-28 mpg on the highway at 70 mph.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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01-16-2010, 09:11 PM
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#20
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Join Date: May 2008
Posts: 817
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i'll have to try speeding up a bit then haha
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|2000 Trans Am|T56 swap|Bolt Ons| Suspension|
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01-17-2010, 01:40 AM
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#21
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Join Date: Nov 2008
Location: Marlton
Posts: 578
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When I had my TA, I got excellent gas mileage at about 70mph. I went to summer school one year while my family was down the shore. Taking the expressway daily from Ocean City to Philly I used less gas than going from my home in Marlton to Philly. IDK what the mpg was but it was awesome. I would put it in cruise control and be happy to see that gas gauge barely move, vs. taking route 70 stop and go traffic at a much shorter distance. At 55, the TA would be able to cruise in 6th around 1300-1500 rpms, and it would do awesome mpgs.
As for the truck, I give up trying to pull off good mileage. Even trying to drive carefully and slowly as possible yields pathetic gas mileage by comparison.
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01-17-2010, 01:56 AM
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#22
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Join Date: Jan 2010
Location: Brick
Posts: 209
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my 78 isnt that good with going fast and having good mileage, having only 4 gears, she seems to rev kind of high at about 65mph, although that doesnt really stop me lol its the 33yr old suspension that lets the car drift and rumble everywhere that does =P
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01-18-2010, 03:13 PM
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#23
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Join Date: Aug 2009
Posts: 195
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i used 2 gallons of gas on a round trip of about 50 miles round trip and i was doing 75-80 the whole way then stop n go in the town area in which i was going to but i couldnt have been happier i thought i was going to get killed on the mpgs that day, wrong!
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Brendan D. ONeill
96 Blk Jeep - Totaled
95 Wht Jeep - Sold
95 Z28 Camaro Sold I want to sell the IROC and get the 95 back or something a year or two off
87 IROC-Z28 Camaro
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01-19-2010, 08:05 AM
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#24
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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On a side note, I heard that state troopers are doing a ticket blitz on all of the major highways- 287, 78, 195, etc. Each trooper is supposed to write a ticket every 10 minutes to generate about 9 million in state revenue.
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01-19-2010, 08:09 AM
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#25
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Power Member / Load Driver
Join Date: May 2006
Location: PA
Posts: 2,016
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I get the best gas mileage when i don't let deadtrend1 drive my cars
in all seriousness 6th gear will suck doing 55 but the beetle would love the slower pace
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Quote:
Originally Posted by 79CamaroDiva
yep. jenn loves teh leghumping.. so much so that most ppl dont realize her name belongs to a chick  |
I'd be unstoppable if not for law enforcement & physics
2011 Regal CXL TO2
Last edited by bandit88; 01-19-2010 at 08:11 AM.
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