Oil in cylinder 5 (Page 6/7)
1985 Fiero GT JUL 16, 08:54 PM

quote
Originally posted by Patrick:


The app you're using is fine for comparing performances using the same app.

IMO, there's no way the readings you're reporting are anywhere near accurate. Look at the actual six second 0-60 mph cars in that list I supplied a link to above. They'd embarrass a Fiero in a 0-60 showdown.

I'm not trying to be mean. It's just the reality of the situation.



I have compared regular stock cars to factory specs as mentioned above and only gotten SLOWER than factory spec, and only up to 1 second slower than factory, I'd call that margin of error/age of the very good condition vehicles, that consistency wouldn't explain my times, I've gotten 4 or 5 runs in the 6s(mods with good timing), with about 15 or so in the very low 7s (mods with not optimal timing). I'll turn your opinion around on you, you really think a 1968 charger, weighing 3500lbs, on somewhere around 210 wide tires (F70-14), would out accelerate those cars and my Fiero? I'm frankly surprised at some of the names on there, Porsches mixed with a Pontiac G6.

[This message has been edited by 1985 Fiero GT (edited 07-16-2024).]

Patrick JUL 16, 09:19 PM

quote
Originally posted by 1985 Fiero GT:

...you really think a 1968 charger, weighing 3500lbs, on somewhere around 210 wide tires (F70-14), would out accelerate those cars and my Fiero?



I'm beginning to suspect you've never really driven a fast car. Seriously. I had a 1967 4-spd Chevelle SS396 years ago that would've easily out accelerated any 2.8 Fiero... probably even with one or two of its spark plugs disconnected. Now granted, I had done some work to its engine, but it was quite the sensation to be pinned to the back of the seat when all four barrels were engaged. I currently have a 1998 5-spd JDM Subaru Impreza WRX STi, and it's a freaking beast that'll wind up (very quickly!) to 8000 RPM.

I love my Fiero(s), but man oh man, none of them can hold a candle acceleration-wise... to either my (long gone) NA muscle car from the 60's, or my current turbo'd AWD machine.
1985 Fiero GT JUL 16, 09:21 PM
Dyno numbers:

1.6 rockers 3 hp

Ported exhaust manifolds 8 hp

Porting intake 2-7 hp, total number in thread includes the exhaust porting

That's 13-18hp extra, not including the power pulley, ignition coil and larger spark plug gap, and my Fiero is a similar weight to a formula, especially with my spare tire delete, and no AC.

I'm not saying I fully believe the 6.16 second run, but at least 6.5 second.
1985 Fiero GT JUL 16, 09:27 PM

quote
Originally posted by Patrick:

I'm beginning to suspect you've never really driven a fast car. Seriously. I had a 1967 4-spd Chevelle SS396 years ago that would've easily out accelerated any 2.8 Fiero... probably even with one or two of its spark plugs disconnected. Now granted, I had done some work to its engine, but it was quite the sensation to be pinned to the back of the seat when all four barrels were engaged. I currently have a 1998 5-spd JDM Subaru Impreza WRX STi, and it's a freaking beast that'll wind up (very quickly!) to 8000 RPM.

I love my Fiero(s), but man oh man, none of them can hold a candle acceleration-wise... to either my (long gone) NA muscle car from the 60's, or my current turbo'd AWD machine.



I haven't in fact driven any fast cars, but a 6 second car is not considered that fast any more. many common cars (Pontiac G6/cobalt) hit that, and for a stock Fiero to only be half a second-a second off that, is not unreasonable that another 18hp along with a blatant disregard for my synchros, would reach 6 seconds, see calculator screenshots.




Patrick JUL 16, 09:31 PM

quote
Originally posted by 1985 Fiero GT:

...is not unreasonable that another 18hp along with a blatant disregard for my synchros, would reach 6 seconds.



Okay fine.

1985 Fiero GT JUL 16, 09:44 PM

quote
Originally posted by Patrick:

Okay fine.



Like I said I do doubt the 6.16 haha, but it would make sense to be somewhere in the 6s, which has been my goal, and I'm very happy with that haha, it definitely feels worlds quicker than it did when I bought it, and it was much quicker than my dad's even then, only difference then was 60,000 more kms, and overall less maintenance on his. (No offense to him )

[This message has been edited by 1985 Fiero GT (edited 07-16-2024).]

Patrick JUL 16, 10:11 PM

quote
Originally posted by 1985 Fiero GT:

...it definitely feels worlds quicker than it did when I bought it



And that's all that matters! Well, that and the fact that you want it to be reliable. No point having a quick car if it's broken down half the time.

[EDIT] Well, that was kind of cool. While I was making this post, I could hear a racket outside. As I looked up and out of my computer room's open window, the Snowbirds blasted by in formation leaving a trail of brightly colored smoke behind them.

[EDIT2] Well damn... it was the Italians! Didn't even know they were going to be here. Apparently, this tour is the first time they've been to North America in 30 years.

[This message has been edited by Patrick (edited 07-19-2024).]

1985 Fiero GT JUL 16, 10:12 PM

quote
Originally posted by Patrick:

And that's all that matters! Well, that and the fact that you want it to be reliable. No point having a quick car if it's broken down half the time.



Well yes, definitely want it to continue to work haha!
82-T/A [At Work] JUL 17, 03:23 PM

quote
Originally posted by Patrick:

I'm beginning to suspect you've never really driven a fast car. Seriously. I had a 1967 4-spd Chevelle SS396 years ago that would've easily out accelerated any 2.8 Fiero... probably even with one or two of its spark plugs disconnected. Now granted, I had done some work to its engine, but it was quite the sensation to be pinned to the back of the seat when all four barrels were engaged. I currently have a 1998 5-spd JDM Subaru Impreza WRX STi, and it's a freaking beast that'll wind up (very quickly!) to 8000 RPM.

I love my Fiero(s), but man oh man, none of them can hold a candle acceleration-wise... to either my (long gone) NA muscle car from the 60's, or my current turbo'd AWD machine.




I would posture that the 1985 Fiero GT 4-Speed is probably the quickest "stock" Fiero that's out there. I have no basis for saying this, but of all the Fieros I've owned (about 9 of them), most of them V6s, the 85 Fiero GT that I owned was hands-down the quickest.

Now, it wasn't the fastest... at about 70 my 87 SE / V6 Automatic would start pulling on it.

But the 85 GT, to 60 at least, was quick. The one I had originally belonged to Darrell Morse, if I'm not mistaken. It was basically a stock car... none of the fancy stuff he did. I think I paid like $1,500 for it back in 1999. It had a 4.10:1 4-Speed that had been swapped into it from an 84 Fiero (unintentionally), and the heads had been decked slightly because the engine had previously overheated. He took the motor out, had the heads decked, replaced the seals, and replaced the crank and rod bearings, and slapped it together. It had 215/60/14s on all four tires with the Hi-Tech 14" rims. When I'd drop the clutch... that thing would never gain traction. I remember at one intersection, 20 year old me had dumped the clutch against a Jaguar (that wasn't racing, and was actually concerned about me hitting him) and my rear tire just spun, and spun, and spun. It started to shimmy to the left at which point I eased up on the gas and then it just continued to burn rubber through the intersection all the way up until 3rd gear. Man, I used to love "Old Fort Lauderdale" when you could do these kinds of things and there was no pearl clutching. It was fast... not a single other V6 Fiero (including my upgraded 87) could hold a candle to it on off the line / streetlight 0-60. The car had no options, not even a sunroof or a spoiler. Just a GT 4-Speed.

Obviously, I don't condone any of that now, and I drive really slow in my Ford Explorer. But whatever it is.

I'd imagine also that he doesn't have the old charcoal canister catalytic converter (which was crap), and you gain a good deal of performance just upgrading to the newer honeycomb style (which is what mind had too). So there's a lot to that. I know the cars gained a little bit of weight over the years... just little things like trunk fan, larger wiring harness and modules for things like the headlights... just little silly things... but it does all add up.

He's also younger than we are... and love it or hate it, we can't shift as fast as we could in our 20s and even 30s.

Man, I could shift from first to second, and second to 3rd in my Solstice like it was a pneumatically-controlled Formula-1 transmission... if I tried that now at 46, I'd probably rip some teeth off those gears.


Anyway, I don't doubt the high 6-second 0-60, as long as he knows when and where to shift for optimal acceleration.


Also, on the engine overrevving thing. I had a floor mat (same car) get stuck under my gas pedal. Instinctively... I upshifted until I realized that was only making me faster and this wasn't going to work out well. So I took it out of gear and it hit the redline like 2-3 times before I could turn off the key.

Engine was fine, but damn... it'll wake you up fast.
1985 Fiero GT JUL 17, 05:59 PM

quote
Originally posted by 82-T/A [At Work]:

I'd imagine also that he doesn't have the old charcoal canister catalytic converter (which was crap), and you gain a good deal of performance just upgrading to the newer honeycomb style (which is what mind had too). So there's a lot to that. I know the cars gained a little bit of weight over the years... just little things like trunk fan, larger wiring harness and modules for things like the headlights... just little silly things... but it does all add up.

He's also younger than we are... and love it or hate it, we can't shift as fast as we could in our 20s and even 30s.

Anyway, I don't doubt the high 6-second 0-60, as long as he knows when and where to shift for optimal acceleration.




Yes my cat is the round small style, not the pellet type, it also appears to have been replaced (as it is welded in, with a few pinholes that most certainly aren't factory)

The getrag actually weighs more than the Muncie, and the 88 front suspension is heavier (I think the rear is lighter though), making mine roughly the same weight as a formula (considered to be the fastest/quickest Fiero).

I have actually gotten best results wearing steel toed work boots, I don't know why, but my foot moves much quicker on and off the clutch with them than with shoes or anything else, like they will improve my time by almost a second, both with the launch and quicker shifts, and I know for a fact I am abusing those synchros haha!

As for the short shifting, I would like to do some single gear runs as was suggested, in first, second, and third, all the way from 2000-5800 or so (maybe less if I chicken out haha) because I don't know whether it's valve float, or the adrenaline and physical motion of the shift/launch wearing out, but by the time it gets to 4500, it seems to not be pulling very hard (as soon as I shift, drops to 3500 or so, it seems to pull harder, even though I'm in a higher gear, like I said, it's likely a placebo effect/impatience for my arm/foot to do something, and I will try to get some g force numbers right through all my gears individually, and gauge my shift points from that, but yeah, I'll heartily use it around town, etc. up to 4000, but preferring a limit of 3250, medium throttle accelerations, downshifts, being in a good gear for corners (my roads here are almost as fun as an autocross course, with how curvy/blind/bumpy/obstacles to avoid, and much less populated haha), only time I'll take it past that is a full acceleration, on-ramp onto a freeway (have one that is so nice, descending sharp curve, tires screeching at 90km/h, only about 100 feet to speed up to 110 and merge before there's no merge lane, and this is supposed to be the trans-Canada haha), 0-60 runs, pulling out of a driveway on an 80 marked road, etc. I've never hit red line (6000), never hit a rev limiter, I have gone 5500 before, a few times, and my needle gets wonky so I don't know what I'm going and I slow it down or shift, or both haha.