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<font face="Verdana, Arial" size="2">Did around 145 in my old 84 Berlinetta...well, with a fresh 350 anyways. Was coming up to a weird spot in the road, goes downhill, straight for about 10 feet, goes downhill again, quickly, and the car's front tires weren't touching the ground anymore, completely lost steering feel...decided to back off it then...
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Once I had the needle touching that little pin u push to reset the tripometer on my 115 speedo. It just kept tapping against it again and again. The ride was smooth, but the sound of the wind was like I had no doors at all. Going that fast actually made me less afraid of going so fast, rather than scare me straight.
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'88 Camaro SC 305 700R4, 80 Series Flowmaster, K&N Filter, air foil.
I've had my 3.1 running a consant 110 on 290 heading towards downtown chicago. But with all the road construction now, that would be a death wish. The was smooth as could be though.
No offense dude, but there is no way in hell a 2.8 can do 138...not a snowball's chance in hell!!!!!!!!!!
I own one, and to keep with the post, I was at 105 in 3rd gear (maybe 4th...I don't remember, I did this 2 years ago) with the t-tops off, and she was really starting to merely creep, not really gain speed. I would say with the tops on, 110-115 is all you can expect from a 2.8...
Think about it...a 135hp car can only do so much...for christ sakes, stock 5.7 IROCs with 2.77s did 144-146 new, and you mean to tell me your car with 100hp less and 3.42s did 138??? Ain't so man...sorry.
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Jason E
'89 Camaro RS
-Medium Grey Metallic
-2.8, A4, T-tops, 95k miles
-Hypertech chip, Accel 8.8MM wires and coil
-K&Ns with gutted airbox
-Alpine 60x4 with Boston 746s and RX97s
'97 Z28
-30th Anniversary package (white with orange stripes)
-LT1, M6, t-tops, 46k miles
-Xtant 403a 50x4 + 300x1 powering a 10" Eclipse Aluminum in a JL Stealth box, Boston RM6 fronts, Monsoon rears (temporary!!), Eclipse 5341R CD, All Monster's goodies...
Speed Kills...Wanna live forever? Drive a Ford.
Long Live #3...
[This message has been edited by Jason E (edited October 29, 2001).]
In my '86 2.8L I was pushing 120. Mile marker to mile marker in 30 seconds. That's the only way we could figure it out. It definetly wouldn't do anything above that though. Fastest in my '87 350 was 135. It was vibrating so bad (I've heard it would be from the steel driveshaft and that aluminum wouldn't) that I took it right down once it wasn't noticeably accelerating. Hitting an overpass at that speed is scary stuff!
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Kodos: "To put you at ease, we have recreated the most common spawning locations of your species. You may choose either the back seat of a Camaro, an airplane bathroom, a friend's wedding, or the alley behind a porno theater."
well, i feel insignificant now, 135, 120, in six cyl. I hit 100 even and she wouldn't do no mo... course, i was going up a slight grade, and my front end is a little outta line(make a big difference???)
and yes, i am making excuses
hahahahaha....
hey we got alot of people from mass on this board I'm from Manchester NH.. it would be nice to meet up with ya guys on the highway or something...I've never raced another f-body
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1988 Sport Coupe 305 TBI
K&N
Flowmaster 80
i am not trying to BS anyone. i am simply saying what the guy in the z28 told me. and i have gone 5 miles stretches with the needle burried(115 speedo). i am not saying that its the sctual speed, just what the guy in the z28 told me he was doing before he pulled away. and yes, the road was deserted, i am not that fu(kin crazy.
<font face="Verdana, Arial" size="2">Originally posted by nothingssafe: i am not trying to BS anyone. i am simply saying what the guy in the z28 told me. and i have gone 5 miles stretches with the needle burried(115 speedo). i am not saying that its the sctual speed, just what the guy in the z28 told me he was doing before he pulled away. </font>
The guy in the Z was probably very wrong. You should be governed to 117 anyways. Either way, anything over 115 or so is damn fast in my book. One time my friend took me for a high speed run in his pop's v12 jaguar. The speedo said 160 when he let off, and the dotted yellow line was pretty much solid.
i have made a few 115 plus runs.. recently racing friends prelude he was going 115 and i was pulling away from him on the i-17 south in phoenix.. have also raced an altima and he claimed 120 and i was pulling on him.. my speedo doesnt work other wise i wouldnt of hit that speed.runs smooth and feels good car is lowered 1.75 inches.. dont want to spend no time in jaili think my top speed runs are done.
Shawn
<font face="Verdana, Arial" size="2">Originally posted by LottaBallsCamaro: NOTHINGSSAFE- 143 in a beretta? 138 in a 2.8 Camaro? I smell bull****. I mean really, the 2.8's bottom end sucks cox. If you had a 2.8 built for NOS, You would have ran out of juice anyway. But then, if you had built a 2.8 why didnt you put a 3.1 in its place, it bolts right in(beretta). or a 3.4, 3.8, or a SC3.8. All will fit with minimal modifacation and are alot stronger of an engine. I'm not trying to make any bad blood between us but come on. Your right that you could build a 2.8 to do that but it would be more worth your while to have put a v8 in the camaro.
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The 2.8 sucks huh? Just so happens I had a 2.8 in a 86 s-15 gyspie that run 12's so whos to say?
<font face="Verdana, Arial" size="2">OrI forgot the name of the mod, but it fixes the not shifting into OD @ WOT... but, when winding out, and it shifts into 4th (OD) it doesn't magically stop accellerating Granted it doesn't pull as hard, but it does pull....
[/b]</font>
I wasn't refering to the downshift problem... in stock form, our cars cannot redline in 5th gear for standards and 4th for automatics... you've probably got the power to do so... just not the people with near stock engines.
<font face="Verdana, Arial" size="2">Originally posted by mss: im still trying to figure out how a 2.8 did 138 mph ? i dont think that thing would get much over 105 if that </font>
They can/will easily, as i said before, had my stock 2.8RS to 110, was in 5th gear, slapped in 4th .. rev's up no faster.. limiter, unhooked what must have been wire to ecm behind speedometer.. buried that thing and pulled quite a few rpm's after buring the needle 115 speedo, also had 255/60/15's on the back so that made it look like i was going slower than i really was to start with, and to the comment on a 5 spd pulling top speed in 4th and a 6 spd in 5th... well thats interesting a T5 has 1:1 4th and so does a T56 and both have around .75:1 5th ...... so go figure, the diff is that a 94 up 6 speed has a .50 6th, but 6th wont pull well trust me.
If You're packing enough power to top out in 5th then you've probably swapped the tranny out... I'm talking about stock cars here, I seriously doubt that very many stock thirdgens can top out in 5th... that would put top speed into the 170 range.
One of this days I want to go to 5500 rpms or a little higher in 4th gear. I have gone up to 5000 rpms maybe just a bit more but then back down due to the vibrations. According to my calculations I am supposed to be going around 125 to 135 mph at a little more than 5000rpms.
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383 86 Camaro Z28 ---1/4 mile e.t>12.89@108.8mph,,
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,4.10 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.ALSO SECOND GEN Z28---mods:454 BBC,.546 max lift(doug herbert cam ) 750 Holley vac sec. ,Edelbrock Performer manifold,Holley electric fuel pump,Hooker headers,Flowmaster mufflers,beefed up 700r4 tranny, 3.90 gears, powertrax unit, B&M console shifter.
[This message has been edited by Big454blockchevy (edited October 31, 2001).]
110 in my Camaro, Ive never actually tried to see how fast I could take it though. I had an 88 Monte Carlo with a 305, and I would say we had that thing going 120, and that's hauling in a box like that. Very seldom do I go over 80 though, because I like my driver's liscense.
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Teal Green 91 Camaro RS
305, Automatic Tranny
Stock for now
In the '88 Corsicar, (2.8 V6...) I had it past 180 km/h, which, if I remember correctly, is 100 mph...I imagine it was around 105-110...of course, the car felt like riding a skateboard down a steep incline...the samllest pebble, and *poof*, I'm in a wreck.
Early one saturday morning headed north on I75 in Auburn Hills Michigan, I decided to top out the Z. Dropped her into third and ran her thru 4th and into 5th, the speedo is inop but the tach read 4900 before it stopped pulling. I was going a little uphill but whew!! That was too fast and i haven't tried it again. As soon as I got home, I pulled out my calculator and it figured out to 148 mph!!
84 Z28 L69 Ported heads, 10:1 comp. .480 lift 230 duration cam at .050", ported intake, no emissions crap, headers, flowmaster.
Original 3.73 gear w/ 5 speed
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1987 Trans AM GTA
305 5SPD
Hypertech airfoil
gutted maf
kn filter
High Flow Cat,
3"Walker pipe
Dynomax Super turbo Muffler
TB Coolant bypass
Lubricated by Mobil 1 Tri-Synthetic
It's for sale
I've gone about 105-110 in my truck. a friend and i were on our way home. my speedo only goes to 85, but my friends goes to 140 and he told me how fast we were going. i thought it was pretty fast for my truck. and there were problems as far as handeling goes.
not a thridgen, but i felt left out too!!!
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1993 Chevy Sport Truck.... all stock 350 motor with k&n air filter and a glasspac
I've gotten my 86 T/A to almost 160mph, 5000rpms in 5th gear.
EDIT: The sig shows the new mods, I used to have an Edelbrock 1406 carb and 7101 Dual Plane HiRise Intake and MSD HEI Coil and stock manifolds.
The other day I got my friends 95 Supra TT up to 150mph and could have gone faster cuz it was still pulling, ran out of straight-away.
I am hoping to break the 200mph barrier in my thridgen one day.
Gruveb, i have the same combo, 3.73 with 5 speed. My car was going 148 in fifth at about 4900 rpms. It was about out of poop up there.
by the way, the engine is an L69 with ported heads, milled for 10:1 compression, ported factory intake, 230 duration .480 lift cam @.050". also have no computer and headers with no cat.
It can just about run with a new LS1 camaro and smoke a new GT Mustang
<font face="Verdana, Arial" size="2">Originally posted by gruveb: Can you figure out your potential high speed by your engine speed X you gearing?
So in theory, I could do about 204 mph? Not that the engine could pull that hard that long....but in theory?
A 5 speed, 3.73 gears. 75 mph is about 2200 rpm or so... </font>
You are correct, the easy way to do it is just take your speed at a certain RPM in the said gear... by my calculations, running at the redline, 5th gear will get you to about 200 MPH with the 3.23 rear... no point to bother with gear ratios, because the tach does it for you basically.
You would need serious Hp to do that of course, probably in the neighborhood of 450 Hp...
CPC, you forgot about tire circumfrence and transmission ratios. You've got to figure driveshaft speed, as just engine speed will not be the same unless you're in a 1:1 gear. Also remember to account 9% converter slippage for an automatic and 2% for a stick car with a GOOD clutch.
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Cody "cyZ28" Young
'84 black on black Z28
355, 5-speed (on the way out. What goes back in, ooohh baby!!)
http://www.geocities.com/mustang_tbird/codypage.html
You haven't lived until you've taken a 65 Malibu conv. up to 155. Thing starts floating around and feels like it wants to fly. The fastest I've been in a 3rd gen was 125 and it felt like I was standing still. The car was very stable, even in bends on the highway.
Wait till ya get older, the **** I did as a kid makes me wonder how I survived. Now, other than an occasional late night, high speed blast, I get my kicks out of pure acceleration and leave the top end stuff alone.
<font face="Verdana, Arial" size="2">Originally posted by cy Z28: CPC, you forgot about tire circumfrence and transmission ratios. You've got to figure driveshaft speed, as just engine speed will not be the same unless you're in a 1:1 gear. Also remember to account 9% converter slippage for an automatic and 2% for a stick car with a GOOD clutch. </font>
I may not have explained my method that well... but it requires no gear ratios or losses of this or that... all that may cause slight inaccuracies would be wind resistance.
So, assuming no air resistance you can calculate your speed by taking the ratio between your speed at a given RPM...
so...
If I Go 62 MPH @ 1900 RPM then to find speed (X) at 3000 RPM we say:
62/1900 = X/3000
X = (62/1900)x(3000)
X = 97.89 MPH
The math is solid... all you need a tach and some speed to correlate to RPM
All right, I can see that. I wasn't clear on the method used.
Also, as a side note. Wind resistance wouldn't be a factor. As you would simply turn less RPM. It would not affect a vehicle with a direct connection to the road. Unlike a plane.
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Cody "cyZ28" Young
'84 black on black Z28
355, 5-speed (on the way out. What goes back in, ooohh baby!!)
http://www.geocities.com/mustang_tbird/codypage.html
l just can't get around the fact that my stupid 700R4 won't shift into OD at more than 3/4's throttle. I had to go 3/4's of the way down in 4th gear, it was still crawling at what l'd say was around 115-120 as l was pulling around 4,000 RPMs, I let go because my fiberglass hood was flapping a bit. Sorry to interrupt the post, but, does anyone know any modification that can be made to cause the R4 to shift into OD at WOT? I rebuilt my R4 trans, its mechanical, no computer controls, I don't think the converter locks up, but I'm not sure what it's problem is? were the R4's designed to not lock into 4th as some sort of half-assed rev-limiter or something?
My camaro shuts down at 115mph, so I gave up trying. Got my ElCamino up to 147mph without a tonnau cover, all hell was breaking loose, wish I could go that fast in an f-body.
"you're going fast when the dotted lines turn solid" - Randy
This is referring to my earliest post on this thread:
As most of us who have the 85 speedo have, I had to top it out... My run was probably around 12:00 AM on about a half mile straight away where I used to see how fast I could get the Civic Wagon up to... I never got over 95 with that thing and it took most of the 1/2 mile just to get there. I was surprised when I was pushing 100 before the 1/4 mark... I started at about 30 MPH and that wasn't even flooring the pedal. The 70 MPH turn at the end comes up pretty fast at that speed, thats probably my only reason for backing off...
i got to 110 in my old camaro (91 rs 305 w/
at and 3" exh.) then the governer kicked in
or should i say the engine kicked out
i haven't taken the z over 80 yet though
i m afraid b/c its got a coolant leak in the
intake, and its getting in my oil, plus the
car needs new front springs and struts and
an alignment pretty bad
120 in my 305 rs. some kid with a new neon thought he was hot sh*t with his crome muffler tip. while i'm cruisin at 75, he tries to go wizzing by. i floor it, needless to say, he was in my rear view in no time at all, giving me the finger.
Well I'm guessing somewhere from 260-280km/hr in my IROC-Z. The speedomiter only goes up to 240 and it was past that and smacking off the odomiter reset button like crazy. VERY VERY VERY unsafe speed I didn't feel in control of my car any more at that speed and I'm suprised I lived to talk about it. As far as what got me to that speed Modified ZZ4 crate engine with lingenfelter superramed fuel injection, modified 700R4 tranny, and 3.42 gears posi. My tires at the time were Goodyear GSA 225/60/16's on all four corners which probably helped the high end too by creating less drag. Pretty mint setup for high end speed but also a great way to get myself killed
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Karsten
86 IROC-ZZ4... too much to list.
i dont think that thing would get much over 105 if that </font>
Others: 1998 Ford Conture
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