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Forum namePerformance/Engine
Topic subjectTOP SPEED?
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=38605
38605, TOP SPEED?
Posted by TalonSpeed, Dec-31-69 06:00 PM
Well today just for fun, I hit 145mph in my car. I just lowered it recently too. It took forever to go from 135 to 145, but it did. I was at 145mph in 5th gear at 6200 rmp. What is the top speed on 2GNTs? If rev limit is 7300 I am guessing 170-180ish. These cars are geared pretty high. I think if I had more top end power then I could get to 160mph.

BTW, I was alone and I have brand new tires that are rated to go up to 189mph.
38606, RE: TOP SPEED?
Posted by fasterGS, Dec-31-69 06:00 PM
Thats pretty fast. Ive been a little over 120, that was on the highway chasing a Jetta VR6 through traffic ;) 120 was pretty fast, especially when everyone else is going 75.
38607, RE: TOP SPEED?
Posted by 9D9 MITSU RS, Dec-31-69 06:00 PM
I got up around 140 b4. I finally quit. There was more room, but the car just wasn't pulling hardly at all anymore b/c lack of power and I didn't wanna blow the motor straining to try and hit some 170. lol. scary as shit tho. of course people say the speedometer is off at those speeds. Who knows without radar, and lets hope we don't get clocked to find out an exact speed. :)
38608, RE: TOP SPEED?
Posted by Doug96GS, Dec-31-69 06:00 PM
140 in an auto? I didn't know that they were geared that high.
38609, RE: TOP SPEED?
Posted by 9D9 MITSU RS, Dec-31-69 06:00 PM
It did it. I'm not gonna try and take a pic. lol. It's not like it went str8 to 140 tho. It gets sluggish at 130+
38610, RE: TOP SPEED?
Posted by Strauss, Dec-31-69 06:00 PM
I've done 155mph no problem(except for EGT's approaching 1600). I believe we are gear limited somewhere around 170mph.
38611, RE: TOP SPEED?
Posted by VsEclipse99, Dec-31-69 06:00 PM
hmmmm... interesting. I have a 99 gs turboed and my car stops at 125 because of high rpms, how is it possible for a non turbo eclipse to reach higher speeds?
38612, RE: TOP SPEED?
Posted by RSConversion, Dec-31-69 06:00 PM
In response to 9D9 Mitsu RS if you get clocked at 140 you will be eating sprinkle coated doughnuts from the cops rump...=( I believe here in MS over 110 is Jail time/ Car Impoundment but hell I have done about 145 don't quote me on that probably anywhere from 140-150 all I have to say is wait till the day you take drastic masures at those speeds your car will top out at about 90 due to driver beliefes =P
I was diong about 125-130 on I10 Highway and wen't to pass a 6 Cyl Mustang (we where racing a bit) and the old woman (her kind = motor running but no one behind wheel if you know what i mean) anyway the seenile old crazy woman in her caddy thought it be best if she switched from fast to slow lane so we could pass the only problem was because i was giong 130 and her old amnesia struck brain took about 30 seconds to click in she started changing lanes once i was already beside her. I flew over into the emergency lane (this is at 130 just leaving a bridge siderailing still there) and came about 3" from becoming pavement puddy... I tell you what if their was coal in my seat I woulda crapped out a diamond, I drove no higher than 85mph for the next week or so till my stomach dropped back into orbit... Then is was back to 130 =D
38613, RE: TOP SPEED?
Posted by Chamuko, Dec-31-69 06:00 PM
I topped out at 130 stock, well just got too scared to to go any higher.. oh with lighter rims and z-rated tires... I miss those.. sniff sniff :( the other day I was chasing am eclipse gts at about 120-130mph...that thing moved... then I pulled over for some grubbin' ... needless to say 15 mi leter I saw that eclipse on the side of the road with a porkster next to her ... she was nice looking too... oh well, only thing now that limits me because of the star stage 2 is the egts not the power....
38614, RE: TOP SPEED?
Posted by juggalo, Dec-31-69 06:00 PM
you have also consider drag. if you have on a body kit and such, it makes the car a little more aerodynamic, reducing the drag. although not all body kits will do this, exp. a spoiler that creates downforce on the rear will slow down a fwd car at high speeds.
38615, RE: TOP SPEED?
Posted by HiOnPSI, Dec-31-69 06:00 PM




Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 4 JL 12" W0 subwoofers / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT / A'PEXi Super AFC
38616, RE: TOP SPEED?
Posted by silvreclipsers, Dec-31-69 06:00 PM
140, nice HiOnPSI!
38617, RE: TOP SPEED?
Posted by Greg, Dec-31-69 06:00 PM
With stock 205/55-16 tires (24.878") our cars will top out at 162.6mph at 7300 rpm (electronically limited)
In my case with 225/40-18 (25.087) My car will pull to 163.6mph at 7300 rpm (electronically limited)
Now this is interesting, with the stock tires size and the SOHC Neon gearbox conversion with enough power we would break the 200mph barrier toping out at 202.8mph!!!!!!
38618, RE: TOP SPEED?
Posted by bullox, Dec-31-69 06:00 PM
hmmmm....SOHC Neon Gearbox conversion?


I'm guessing since it has a higher possible top speed that the gears are wider making it slower to get thru the gears? Is this true?

I'm curious
38619, RE: TOP SPEED?
Posted by silvreclipsers, Dec-31-69 06:00 PM
202.8mph!! that would take a while
38620, RE: TOP SPEED?
Posted by ner947, Dec-31-69 06:00 PM
>Now this is interesting, with the stock tires size and the
>SOHC Neon gearbox conversion with enough power we would
>break the 200mph barrier toping out at 202.8mph!!!!!!

lol, right. in theory. that's assuming that you have enough power to overcome drag which happens to go up as a cubic with speed.
38621, RE: TOP SPEED?
Posted by HiOnPSI, Dec-31-69 06:00 PM
that's pretty damn fast.



Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 4 JL 12" W0 subwoofers / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT / A'PEXi Super AFC
38622, RE: TOP SPEED?
Posted by LeakyMitsu, Dec-31-69 06:00 PM
why does mine stop at 110 then? is it because i have a stock computer or something?
38623, RE: TOP SPEED?
Posted by Greg, Dec-31-69 06:00 PM
First of all I'm only speaking on behalf of the 5-speed Manual Gearbox. I can't speak for all years but I know my 99 has no speed limiter what so ever :P Are you automatic LeakyMitsu??
38624, RE: TOP SPEED?
Posted by JZA69, Dec-31-69 06:00 PM
An eclipse will never push past 200 mph, regardless of gearing without serious aero enhancements and a 4g63 motor pushing at least 500hp.
Whoever said drag increases at the square of velocity was right. 200mph requires four times the hp than 100mph does.
38625, RE: TOP SPEED?
Posted by Greg, Dec-31-69 06:00 PM
Why did you say 4g63 motor????? If your all strung out on the 4g63 go buy a GS-T or X. I'll race a 4g63 any day of the week. They have nothing over us other than a stonger "factory" motor when turbo. I'm not dumb and I do know it takes a chunk of power to run to 200mph but never say never ;-)

38626, RE: TOP SPEED?
Posted by JZA69, Dec-31-69 06:00 PM
either or, i wasnt trying to be specific about the actual engine... just the power aspect. If you can get 500hp out of a 420A reliably, then your better than most people.
38627, RE: TOP SPEED?
Posted by 2hot97GS, Dec-31-69 06:00 PM
i hit 130 with me and another guy in the car, and a ton of shit in the trunk with just a cone as a mod.
38628, RE: TOP SPEED?
Posted by 510eclipse, Dec-31-69 06:00 PM
our cars haul some serious top speed considering the price of my little rs. i like the fact that we are so areo dynamic. unlike most cars in our range, when we get up over freeway speed, our cars dont shake like a bucket of sheet metal. infact my car feels less shakey and rattled over 100mph as it does below 80. i know half of that is because i can hear the sweet noise of an engine yelling, but also above 100 i can totally feel the car sucking down to the ground if that makes any sense. i dont know where but i think somewhere here i read that our cars were made with an exceptional high speed disign. am i the only one who's been led on to believe this? oh and ive been liking the idea for a while about swapping in the neon sohc gear box for a longer top end. more specifically id really like to just swap the fifth gear from a sohc neon in place of the fifth in my gear box so i could have a higher speed per rpm while cruising down the freeway 90+. im not looking to go out and kill myself going 200 on the highway, just want to give my car some ease on the long runs. does anybody have a clue how much something like this would cost to have done? i dont feel like getting into tranny games on my own. tia
38629, RE: TOP SPEED?
Posted by HiOnPSI, Dec-31-69 06:00 PM
amen, brotha.



Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 4 JL 12" W0 subwoofers / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT / A'PEXi Super AFC
38630, RE: TOP SPEED?
Posted by The1Bill, Dec-31-69 06:00 PM
Well, with our coeffecient of drag being what it is stock, around .29 (for the later 2G bumper, .28 for the early 2G bumper w/ low spoiler), it shouldn't be too tough to make it scream up to supercar speeds... A 6th gear would help, too, but I won't ask for miracles. Maybe a letter to PVO to have a 6 speed option with a factory LSD on the SRT-4 would be in order, though, especially if it has equal length halfshafts... Ah well. It would take a fair amount of HP to make 200 MPH, but not too much more power then a Ferarri. To put this into perspective, the coeffecient of drag of a Diablo is .31. Hehe... Gotta love the design of this car.
-=B-=
38631, RE: TOP SPEED?
Posted by JZA69, Dec-31-69 06:00 PM
of course, the lambo makes downforce at speed whereas the stock eclipse body does not....Downforce will hurt top speed but keep the car to the ground.
38632, RE: TOP SPEED?
Posted by ez, Dec-31-69 06:00 PM
>>>>somewhere here i read that our cars were made with an exceptional high speed disign

well, we do have a drag coefficient of .29, which is absolutely awesome. Besides hp thats the most important thing for reaching high speeds
38633, RE: TOP SPEED?
Posted by tenmile, Dec-31-69 06:00 PM



before you start it's not real :P
we had the front of the car up on jackstands and the rear tires chocked to film a few fast rev up/"high speed" scenes for a movie, but with no load you can get the wheels moving in 5th gear :)


Mack
'97 GS
-Flowmaster 40 Deltaflow w/3" tip
-Autometer Bezel pod w/Autometer Phantom Oil Pressure & Voltmeter
-F/R Strut Bars
-K&N Drop-in w/Drilled airbox
-Kenwood 716S HU + 10Disc w/Infinity Reference 6x9" (R) 5 1/4" (F)
-Door chime mod, Power Antenna mod, scrape-the-front-bumper-cover-too-much mod
Mack
'97 GS
-Flowmaster 40 Deltaflow w/3" tip
-Autometer Bezel pod w/Autometer Phantom Oil Pressure & Voltmeter
-F/R Strut Bars
-K&N Drop-in w/Drilled airbox
-Kenwood 716S HU + 10Disc w/Infinity Reference 6x9" (R) 5 1/4" (F)
-Door chime mod, Power Antenna mod, scrape-the-front-bumper-cover-too-much mod
38634, RE: TOP SPEED?
Posted by bullox, Dec-31-69 06:00 PM
I was gonna say...if you can go 160 without your engine heating up, you might wanna check your thermostat lol
38635, RE: TOP SPEED?
Posted by The1Bill, Dec-31-69 06:00 PM
Actually, the 2G DSM is nearly aerodynamically neutral. A slight amount of downforce is generated, but lift is nonexistant. Kinda neat, actually...
-=B-=
38636, RE: TOP SPEED?
Posted by 510eclipse, Dec-31-69 06:00 PM
>Actually, the 2G DSM is nearly aerodynamically neutral. A
>slight amount of downforce is generated, but lift is
>nonexistant. Kinda neat, actually...
>-=B-=


oh ok, yeah that is pretty awsome. i guess that explains why our cars can easily break say 130....but my car still feels stable as hell. where as with my homeboys supercharged miata, you can bring it up over 100 in a quick second, but anything near that fast and you can feel the damn car lifting up. and anybody else's car's that i've been in just never feel as stable as my car at high speeds. they probably dont start lifting real bad like the miata because they arent nearly as light. but with simliar non areodynamic qualitys as the miata, and a lot heavier/less hp car, it makes sense that they dont lift but still feel really unstable. god our cars rule, areodynamics almost as perfect as a diablo for high speed capabilitys, but just enough downforce to keep us stable and not slow us down a whole lot. thanks to everyone for clarifying all of this.
38637, RE: TOP SPEED?
Posted by HadesOmega, Dec-31-69 06:00 PM
hmm fastest I've gone in my car is 140 hehe make sure you got Z rateds tires b4 you try stuff like that hehe. At 140 it was starting to slow down but could still go if'd wanted to. At 140 you start passing stuff pretty fast O_o
51238, RE: TOP SPEED?
Posted by Attrayant, Dec-31-69 06:00 PM
I hit 135 and I experienced what I thought was fuel cut, maybe something just fucked up though, I'm ready to try again though
51241, RE: TOP SPEED?
Posted by widebodied, Dec-31-69 06:00 PM
ive been 149, backed off because the egts were climbing 1550-1650 i think with the 2.4, i should be able to do 160 no problem.

DWAYNE H

Red/Black/Silver 01 GSXR 750
Lots of Apexi components...
51243, RE: TOP SPEED?
Posted by SPL_Eclipse, Dec-31-69 06:00 PM
"hit 135 and I experienced what I thought was fuel cut, maybe something just fucked up though, I'm ready to try again though"

stange, i had the same thing, i dont think the car liked going nearly 140. it didnt feel like fuel cut though...it wasnt violent. it was more of a "started shaking like shit and groaning, before finally dropping drasticly in speed".

let me also say that it is nearly impossible (i dont see how other autos have done it) to get above 120 with an eclipse (auto). i hit NEARLY 140, but that was on a long, LONG stretch of downhill interstate. on level ground the fastest ive goin is 120. also let me say that ive only done either of those once. otherwise, ive not gone faster than 85-90 in the 4 years ive had the car.

i managed to take an 89 dodge colt to 110 one time, and sent a rod through the oil pan. ;) that was fun.
51248, RE: TOP SPEED?
Posted by JWoodley, Dec-31-69 06:00 PM
someone has balls to take a picture going almost 145mph. }(
51251, RE: TOP SPEED?
Posted by mitifto, Dec-31-69 06:00 PM
Fastest was 152 in my rs-t. Talk about things zipping past you
51261, RE: TOP SPEED?
Posted by docta doom, Dec-31-69 06:00 PM
i've gone 115, but my car was crawling along and i got into traffic. i guess it doesn't help i had the windows down and the moonroof open, or that my car has 163,000miles and is in dire need of a rebuild among other things :thumbsup

still beat a 4cyl accord though
51267, RE: TOP SPEED?
Posted by drewkivela, Dec-31-69 06:00 PM
i,ve hit 130-135 in my 98 gs, when my 87 firebird was running i passed a 2 topped out at 130 in a 55. on the 15 i got the bird up to 145 racing a saleen mustang, that's when he won. sick shit.
-drew
51271, RE: TOP SPEED?
Posted by Collente, Dec-31-69 06:00 PM
We need a Pic that says last year was that way.....


Nick
97RS
51272, RE: TOP SPEED?
Posted by Blmet, Dec-31-69 06:00 PM
all fun and games until you hit a pole going 115
51290, RE: TOP SPEED?
Posted by Eagle 5, Dec-31-69 06:00 PM
top speed with stock 14" tires..is 168mph at 7300 in 5th, with my new 235/40/18 tires, top speed is 172 at 7300 rpms in 5th

i have a calulator that tells top speed and stuff
51302, RE: TOP SPEED?
Posted by 420AYE, Dec-31-69 06:00 PM
my speedo don't work.. so can someone help me out? how fast in 5th are the following rpms:3000,3500,4500,5000,5500
THANKS!
51306, RE: TOP SPEED?
Posted by Eagle 5, Dec-31-69 06:00 PM
5th at 3k rpm is around 70 depending on tire size
4k rpm is 92.5ish depending on tire size
5k rpm is 115 ish depending on tire size
6k rpm is 138 ish depending on tire size

its linear so you can figure out what 3500, 4500 and 5500 are from those numbers. those are close to actual speeds. As actual speeds will depend on the tire size. im not sure what size was used for these numbers but i can look it up real quick. i know with 235/40/18 i could hit 172 at 7300 rpms in 5th. with my stock 195/70/14 i could hit 168 at 7300.


the drag force for an object is...D = 1/2CpAv^2 where C is the drag coefficient, A is the effective cross sectional area and v is the velocity. that is for a falling object so with an object moving along the ground you must also add in friction so the drag force would be roughly D = 1/2CpAv^2 + Friction force friction force is euqal to umg where u is the coefficient of stati friction mg is the weight of the object...so i coudl sit here and figure out what it would take but im not in the mood. ill try to figure out exactly how much force we would need from our car to hit say 170 and 200 mph. ill get back and let you all know
51421, RE: TOP SPEED?
Posted by 420AYE, Dec-31-69 06:00 PM
are you sure? i have 16's with 205/40's and it seems like 3000 would be aroun 60-65....anyone else? but if your right, here are some points! thx for takin the time.
51294, RE: TOP SPEED?
Posted by juggalo, Dec-31-69 06:00 PM
>all fun and games until you hit a pole going 115

now why would you wanna hit a pole. when i'm going 115+ the last thing i'm gonna do is hit a pole. i'm gonna get a blow out and roll my car. :thumbsup :thumbsup
51310, RE: TOP SPEED?
Posted by J, Dec-31-69 06:00 PM
B'ing furious @ my then g/f (now wife), getting up 2 145 C'md pretty EZ 2 me. I'll 2nd the comments that the faster I went the more stable it felt... & there was still more power 2 keep going no prob. Only reason Y I backed off was cause I had no radar detector w/ me @ the time (not that it'd help 2 much) & fear of getting busted. But hey, I made a 3 hour round trip in about 45 minutes (Average of 145).

Had stock 14's @ the time, that may have made a difference in acceleration although it'd B neat 2 try w/ my RX-7 16x8 now (haven't yet, more control).

P.S.
Yeah, U've got nuts taking a pic going 145!

P.P.S.
MWUHAAAAaaaaaaaaaaaaa

- J
51322, RE: TOP SPEED?
Posted by Twiste, Dec-31-69 06:00 PM
its funny, when im on the highway, im almost always the fastest person on the road :P. Get this, im going down I-435 north and i get to this part of the highway where there are concrete dividers and its a straight away with no possibility of cops being there. So i crank the baby up and get to 125 and i come over the top of a hill and the highway takes a kind of sharp left. OMFG, ive never been so scared when i started to hit the brakes around that turn and my backend slid out sideways and i drifted around that turn at 125 mph.
51359, RE: TOP SPEED?
Posted by Shockeclipse, Dec-31-69 06:00 PM
hmm...my top speed was 145...i just stopped trying when i hit there....i thought i could remember reading somewhere that my car limits after 145....strange
51360, RE: TOP SPEED?
Posted by Gregstoofast, Dec-31-69 06:00 PM
110 is what my car tops out at,115 going down hill... it's an auto,but hopefully that will change after I drop the other motor in it


<--Eclipse Racer-->

51382, RE: TOP SPEED?
Posted by Slow_AT_Talon, Dec-31-69 06:00 PM
Got mine to 137 in my A/T It took forever. There is definately a speed limiter that kicks in at 115 and 120 in my M/T.
Also if you want to reach unbelievably high speeds in a lesser time (the governer does slow you down)then check out www.armond30.com/adp/smartquestions.html for his write up on speed limiter removal. All the info is there for mid 96's if you need the wire color and location for 95 and early 96 check www.2gnt.com/www/corbin/95ECU.html Please remember Armond has done lots of research for this mod so if something messes up or you get arrested for going that fast don't blame him or me and I am not affiliated with him in any way I just knew where the info was.


95' ESI AT
CAI
Greddy EVO Cat-Back
Cat Hollowed
P&P TB
Shift Kit
Crower Stage 1 Cams
Msd ign. and wires
Bosch +4's
3" drop
17" racing Hart's
Best Run 18.7 @ 86 mph
Coming soon MT swap and custom TURBO setup

And now also:
'95 Talon ESI MT
Magnaflow muffler and soon custom turbo setup
51430, RE: TOP SPEED?
Posted by ajna_star, Dec-31-69 06:00 PM
198hp @6350 rpm NA 420A (Thanks to new JE forged 9.5:1 Deep Dishers ready for Zex Nitrous 150 Shot)

with or without spraying...?
51383, RE: TOP SPEED?
Posted by eclipse_gs_1512, Dec-31-69 06:00 PM
shit, i guess i'm a noob when it comes to speed......90mph is the highest my eclipse has been!!!
51398, RE: TOP SPEED?
Posted by ClipseRST, Dec-31-69 06:00 PM
I had mine up at 135 for about 3 minutes straight... I blew a seal and shot oil all over clutch... by the time i slowed down it was good-be clutch.:o
51499, RE: TOP SPEED?
Posted by euro_clipse, Dec-31-69 06:00 PM
Are you sure that wasn't your diamond plate floor boards poping out??? (Sorry, I had to!!!)
123 is my max.



Black '98 GS auto
I-vers intake
Custom ram air
Front & rear strut bars
OBX fog lights w/ fog light mod
RSR rear section
Stereo that goes BOOM
52743, RE: TOP SPEED?
Posted by ThE oRACLe, Dec-31-69 06:00 PM
greg release o/d ... 130ish is the top for an auto
52745, RE: TOP SPEED?
Posted by Collente, Dec-31-69 06:00 PM
Wow some of you dont go very fast... When im racing on the freeway I will climb to about 120-125 in 4th and shut it down. After 120 cops and my common sence kicks in my mind so i stop:thumbsup
It is not hard to reach that at all...

Nick
97RS
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