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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Aug 13, 2009 12:33 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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fusion210 wrote: In fairness to the azenis, I haven't checked their pressure recently. Probably 35-40psi. Not even close, they were 29.5-31psi! Up to 50psi they go.
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Mon Aug 24, 2009 3:36 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Do you know what's coming up by the look of this?    I was swapping the K member and carefully went along. Then when I torqued the vertical control arm bushing bolt down, snap! I was able to back the bolt out a little, but then it just started rotating freely. Awful! I mean seriously, it wasn't even rusty! Right now I haven't touched it since coming home from the hardware store with a M14x2 nut and washer, to attach it from the inside. :( I haven't done the driver's side yet, kind of antsy. I'll be trying out a set of front struts from an r/t, and rear KYB GR2s that I have laying around. It's probably going to look like a 4x4!
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superD
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Mon Aug 24, 2009 9:31 pm |
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| Master Neon Mechanic |
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Joined: Thu Jun 15, 2006 12:52 am Posts: 10156 Location: Phoenix, AZ it's not snowing outside. HAHA!
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i would have much more colorful expressions for that bolt then flipping it off if that happened to me.
_________________ F&S Fabrication 2.4L power steering brackets 1999 2.4L coupe now Corn fed
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Aug 25, 2009 7:56 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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I save those expressions for the tiger mosquitoes.  Quote: It's smaller than most mosquitoes, but its bite causes more irritation than most, and it dines throughout the day, not just at night. It's especially aggressive during its feeding frenzy. And if it lands on you, the bug is so fast it's probably going to inflict its damage and get away before you have a chance to swat it. Yay happy bolt!  Working in a driveway is getting old, very old.  The cross member is on, rust free brake/fuel lines are on, front r/t struts are on. I ran out of brake fluid while bleeding the front driver's side line, that will be done tomorrow. I also picked up new rear lateral links from a 1999 at pull a part. I'll do those tomorrow when I add the rear KYB GR2s. :) I can't believe I haven't taken a picture of it yet, but the rearmost lateral link on the passenger side is bent in a very noticeable way. Like a frown. :(
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flatblacktrueno
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Aug 25, 2009 10:54 pm |
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| Neon Enthusiast |
Joined: Mon Apr 21, 2008 9:23 pm Posts: 1528 Location: Charlotte, NC
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Hmmm.glad to see everything worked out. Man im not enthused to do mine at all..but it must be done. I still need to pull a spare set of control arms from the yard to do this..bolt on affair is a must.
_________________ 1998 Dodge Neon R/T #128 ST CCR-SCCA -2008 3rd Place STS -2009 Knights Series ST Champion CCR-SCCA -2009 Folger Subaru ST Champion CCR-SCCA
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Sat Aug 29, 2009 4:21 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Should be better than my car! Especially the rear control arms. Of course, the bolts are seized. I have new control arms/bolts from pull a part ready to go as soon as the rusted on OEM ones feel like coming out. The brakes are bled, the rear struts are in and the rear control arms are the only thing stopping me now.  Booo!
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flatblacktrueno
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Sat Aug 29, 2009 9:24 pm |
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| Neon Enthusiast |
Joined: Mon Apr 21, 2008 9:23 pm Posts: 1528 Location: Charlotte, NC
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Those links are in pretty bad shape..mine arent bent at all surprisingly.
_________________ 1998 Dodge Neon R/T #128 ST CCR-SCCA -2008 3rd Place STS -2009 Knights Series ST Champion CCR-SCCA -2009 Folger Subaru ST Champion CCR-SCCA
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 01, 2009 11:16 am |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Annnnnnnnnnnnnnnnnnnnnnnnd they are still stopping me. The bolts that go through the subframe area are freed, but the ones going through the knuckle are not. The plan is to heat, hammer and pb blast them into submission. I really don't want to take anything off since I bled the brakes, though I may have to. Looks like I went in the wrong order! It's ok because USPS was good to me today. I haz a shiny!  If I don't sell it right away, I'm going to see if cam timing will make a difference in mpg at cruising speeds or if it will pick up any tq at slower speeds. Thoughts, comments, concerns, experiences?
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MASE S
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Post subject: Re: Posted: Tue Sep 01, 2009 11:41 am |
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| Neon Enthusiast |
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Joined: Tue Feb 21, 2006 11:34 am Posts: 1110 Location: minnesota
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98brg2d wrote: link about some crazy hypermiler. Did anyone read that whole story? 180 miles per gallon. These people are nuts. Mase
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norman426 wrote: i drove into a ditch for him, wouldn't do that for most people
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fusion210
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Post subject: Re: Re: Posted: Tue Sep 01, 2009 11:55 am |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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INTENSE wrote: 98brg2d wrote: link about some crazy hypermiler. Did anyone read that whole story? 180 miles per gallon. These people are nuts. Mase It's amazing what can be done in both unmodified and modified cars. I think I remember someone saying that at a steady speed in lean burn, the first gen Honda Insight can hit 125mpg. The aerocivic ( http://www.aerocivic.com and his build thread here http://ecomodder.com/forum/showthread.p ... 90-31.html) has now been fitted with a different engine and transmission. basjoos wrote: Refilled for the first time since installing the B15Z1 (VX lean burn) engine in my car and got 81.2 MPG over 438 miles of mostly interstate driving with a fair amount of driving on wet roads. Its been up to 75mph on a level road without it dropping out of lean burn. At that speed, it was showing 5 usec on the SuperMID, the ceiling for lean burn is at 6.1 usec, so I still have some headroom left. I'll have to find a highway with a higher speed limit before I can continue trying to find the upper speed limit for lean burn operation (the max speed will probably will be RPM limited rather than load limited for lean burn). On a flat road, its getting 100mpg (at 3.0usec) at 55mph and 120mpg (at 2.5usec) at 35mph. Insane indeed!
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guhfluh
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 01, 2009 8:49 pm |
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| Neon Enthusiast |
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Joined: Thu Feb 14, 2002 11:28 am Posts: 2802 Location: Southeast LA, and not Los Angeles
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I've been stopping in and reading every so often and I had to state my opinion on the rapid accell thing.
It's my opinion that you are only fooling your scanner. The science says, under a greater load your engine will be less efficient, along with other things. Extra blowby and friction will increase and lower the efficiency. Normally an automotive computer(and definataly a stock Neon one) will richen up the AFR and disregard the O2 under WOT, but right under WOT(in closed loop) it's still trying for 14.7:1.
What was your measured mileage (not by the scanner) on those runs?
So far I still think the project is pretty cool!
_________________ '99 White ACR Coupe-SRT 2.4, DBB Delta65, Crower Stage 4 cams, DCR head, built ATX, MSII, ... 12.82@106.87 on old motor New idle vid up->http://forums.neons.org/viewtopic.php?f=51&t=332382 '95 MTX Lapis Coupe The First SRT swapped...brakes, wheels, tires, struts, pedals, column & wheel, cluster, wiring, PCM, seats, console, and more...NOW SOLD 12.24@113.69 slicks, 12.89@115.01 street tires
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 01, 2009 9:48 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Thanks! The scanner may possibly be fooled 100% of the time.  I haven't measured any other way. It would be neat to use a car that had a readout on the dash and then compare. I'm not sure if 75% throttle will put the neon into open loop, I could see that throwing off my test. Have you read up on brake specific fuel consumption? How I wish I had a chart for the neon. http://autospeed.com/cms/A_110216/article.html
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 5:15 am |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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fusion210 wrote: I'm not sure if 75% throttle will put the neon into open loop, I could see that throwing off my test.
According to the scangaugeII, it won't go into open loop until just about wot. Going by how I've been accelerating, it stays in closed loop. 
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INVUJerry
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 3:43 pm |
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| Neon Enthusiast |
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Joined: Tue May 24, 2005 7:55 pm Posts: 3304 Location: Baltimore, MD
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Been attempting at hypermiling my 98 a little (yes...the modded one) on this tank of gas. Aired the tires up to 42psi, driving at the actual speed limit instead of keeping up with traffic. We'll see how this tank goes. I'm at 200 miles and a little bit above a quarter tank. I was filling up at 200 miles before (26-28 depending on the pump). I might air up the tires to 45 or a little more, it feels like I have power steering again when compared to 32 psi.
The 3.94/.81 is killing me on the highway.
_________________ 2005 Neon SXT Black 1998 Dodge Neon Coupe SOHC - 12.5:1, .040" over, crane 005 coming soon 1995 Dodge Neon ACR NYG - Getting work.
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 3:56 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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In my old black car, I was keeping track of mpg per tank. Just about all of my drive was 45/60mph freeway. I used to get in the mid 40s no matter what. That sank to the low 40s after running falken azenis in the front. Then when I switched to the 3.94/.81 trans and azenis all around the best I saw after that was 36mpg. :/
I'm taking my coupe up to ohio this weekend. She has a good alignment and without any aero mods other than not running an airdam and being lowered, she matched my 4 door's highway mpg.
1998 sexpresso dohc/3.94 with the .72 fifth Same alumasteelies/ziez 512s No ac/ps 58mm tb hondata intake manifold gasket pt exhaust manifold/srt4 cat ~180? pounds of weight reduction
Somewhere around 43.5mpg at a steady 65mph.
Since then I've put the grill block/airdam/mirror delete from the sedan on, sold the 58mm tb and replaced it with a 49mm, moved the wipers down closer to the cowl, and found the tires to be ~46psi cold. Back up to 51psi they go. Hopefully over 55mpg on the trip up!
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INVUJerry
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 4:03 pm |
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| Neon Enthusiast |
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Joined: Tue May 24, 2005 7:55 pm Posts: 3304 Location: Baltimore, MD
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Sweet man! I'd love to find a 3.94/.72 for my car, and a wideband so I can tune it out, I know it's gotta be running hella rich.
I'm driving it to NJ on the 12th, 34MPG or bust!!
_________________ 2005 Neon SXT Black 1998 Dodge Neon Coupe SOHC - 12.5:1, .040" over, crane 005 coming soon 1995 Dodge Neon ACR NYG - Getting work.
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 5:41 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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flatblacktrueno
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 03, 2009 7:30 pm |
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| Neon Enthusiast |
Joined: Mon Apr 21, 2008 9:23 pm Posts: 1528 Location: Charlotte, NC
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I cant wait to get some skinny's back on my RT wheels..im pullin 41-43hw on these Dunlops. 35psi cold.
_________________ 1998 Dodge Neon R/T #128 ST CCR-SCCA -2008 3rd Place STS -2009 Knights Series ST Champion CCR-SCCA -2009 Folger Subaru ST Champion CCR-SCCA
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 08, 2009 1:01 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Just have to watch out for the rolling resistance coefficient. Made it back from Ohio in one piece!   150,000 miles young  About halfway through I realized I wouldn't be breaking any personal bests and decided to just go 5mph over. Well, then I decided I had enough to still make it on one tank instead of filling up about an hour away. How could it get more interesting than that? I hit some nice bumper to bumper traffic on the highway! So with it sitting at near empty, the low fuel light having already come on some 50 miles or so ago I had to get through this traffic. Luckily it was downhill the entire way. For almost 1.5 miles I had the engine off and coasted in bumper to bumper traffic. It was where two freeways met as well, just to make it more fun.  At one point I ran over some little sand piles, I imagine there was an accident that caused the traffic. I finally made it to my destination, the pull a part on the east side of Cleveland where I was meeting my friend Scott. He didn't find anything, I spotted a platinum sohc hood in good shape and planned to pick it up on Monday instead of lugging it around all weekend. As you may have guessed, I went back Monday morning with a 10mm socket and it was gone. :( The only thing I bought was a 2gn '2.0 16v' injector cover. Well, here I am still at empty in a not so great neighborhood. The car almost didn't start, thanks for fumes! After turning over 6 or 7 times I was in business. I followed my friend into a couple cities over and finally refueled.      You're seeing it right. 12 gallons to fill, scangauge says 11 gallons. Also, the egr was acting up, I suspected something was wrong even before I took off because the gallons per hour would not go under .35 at idle, it would hover mostly around .38 gallons per hour. It definitely showed. I imagine that since the scangauge expects a 14.7:1 air/fuel ratio, the neon's pcm was running more rich with the bad egr. Still 543 miles on one tank, I made it. :) Also, I didn't look it up until then, but the calibration I was using with my scangauge and 4 door was only .8%. On my way back I averaged about 47mpg without trying too hard. It's nice having almost all of VA and NC being downhill on the way home.
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INVUJerry
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 08, 2009 1:49 pm |
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| Neon Enthusiast |
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Joined: Tue May 24, 2005 7:55 pm Posts: 3304 Location: Baltimore, MD
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Hmm. Ever think about going mopar PCM for the timing advance? Since you don't race the car any, you could get away with 87 and not worry about pinging issues.
_________________ 2005 Neon SXT Black 1998 Dodge Neon Coupe SOHC - 12.5:1, .040" over, crane 005 coming soon 1995 Dodge Neon ACR NYG - Getting work.
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 08, 2009 2:18 pm |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Haven't thought about that one yet. Though it gives me an idea to test a dohc pcm on my sohc.
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TOOSTUBBORN2FAIL
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Thu Sep 10, 2009 5:14 pm |
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| Neon Enthusiast |
Joined: Fri May 02, 2008 11:53 am Posts: 570 Location: Fresno, CA
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so far, im getting an average of 42 mpg, over a 110 mile commute, 105 miles of which are on the freeway, at 55mph, half the trip in the morning with no ac and the lights on, half the trip in the afternoon with no lights but ac.
98 R/T MPP Pcm 3.0 cai 52mm half shafted TB P/S pump used as an idler for the A/C no muffler (noticed about a 1 mpg diff on the highway back when this was all that was done to the car) Unorthodox racing UDP removed wipers and antenna
Fusion, i weighed that clutch i was talking about putting in with the 3.55, 21 pounds 2.0 ounces on a postal scale. Fidanza non mod flywheel, fidanza kevlar semi-sprung 4 puck disk and fidanza pressure plate. Pressure plate was 9 something, clutch disk was 2 something, and flywheel was 8 pounds 2 ounces. (this includes all bolts for flywheel and pressure plate)
The stock modular clutch out of my 96 weighed 27 pounds 6 ounces, including all bolts, and the flexplate. The flexplate itself weighs 3 something, some im right inline with what your stock modular clutch weight is on your other post.
Today put back on the grill block i had on before since my new rad is in, removed the side moldings, and removed the sways, havent decided if there staying off or not, but i really dont plan on autoxing the car anymore, since i have limited time and would rather get my racing fix with motocross.
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fusion210
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 15, 2009 6:23 am |
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| Neon Mechanic |
Joined: Wed Jan 09, 2002 11:15 am Posts: 6639 Location: NC
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Makes sense about the clutch weights. You need to make a project log on here! I'm interested in seeing how far you go.
The EGR issue on the coupe finally bugged me enough to do something about it. Insufficient flow, I definitely know why now! Before my trip, I swapped on a used intake manifold. It looked ok, I gave it a light cleaning on the inside. Well, I skipped the EGR port. It was pretty well sealed up. Doh! If I was right about going for 55mpg, when I only got 46mpg round trip due to an EGR problem, it basically cost me $10 in only a weekend from the decrease in fuel economy. :(
Control arm bolts going through the rear knuckles on the sedan are still frozen! I've just been hitting them with PB Blaster. I think they'll need to be taken off after all.
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impalow
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 15, 2009 6:41 am |
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| Neon Enthusiast |
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Joined: Thu Jan 17, 2008 9:09 pm Posts: 197 Location: Wadsworth, Ohio
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I just stumbled over this thread... I actually have your original hood on my Winter beater...lol... I lived in Pittsburgh for awhile and worked at a Napa store there... Somebody backed over the front of my car with a pick-up truck, and i needed a hood.. "Keith" came in and had the original hood off of his/your car in his garage and i bought it off of him for like $30.00 or something... I believe at the time he had a fiberglass or carbon fiber hood on it... Crazy small world... The car looks great again!! Nice work!
_________________
 -1995 Dohc 5spd Coupe(Street/Track Car)--1995 Sohc 5spd Sedan (N.U.V. Neon Utility Vehicle) -1966 Chevrolet Impala (Lowrider) -
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flatblacktrueno
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Post subject: Re: My hypermiler. Rapid acceleration is better! Posted: Tue Sep 15, 2009 1:49 pm |
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| Neon Enthusiast |
Joined: Mon Apr 21, 2008 9:23 pm Posts: 1528 Location: Charlotte, NC
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Been trying to get better mileage in the R/T.
This last tank i managed 428 mostly highway..getting on it sometimes. Azenis on front, BFG Traction TA's on the rear with my R/T wheels. I might go ahead and get those Falken Ziex's all around for better mileage. That and i think my alignment needs to be done again..it doesnt feel quite right. Plus i used cruise 95% of time on the hw..without cruise my foot gets cramped.
That and a Scanguage.
_________________ 1998 Dodge Neon R/T #128 ST CCR-SCCA -2008 3rd Place STS -2009 Knights Series ST Champion CCR-SCCA -2009 Folger Subaru ST Champion CCR-SCCA
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