Was it originally a 5 speed? Mine was originally an auto and has the "peanut" cam in it. the "peanut" cam has NO power.
My 86 Trans Am 305/5speed would spin to 5500 easily.

 

forget the 15% comment...its not a lose...i told you all, this dyno calculates differently. If you dont like it call the damn company (Mustang Dynamometers) and complain to those M.E.s that they're fuckin up. That dude was right most of you know jack shit about this.

 

A LS2 Goat with his mods will at least make 340 on a dynojet. I make almost 440 on a dynojet. Dynoing in 3rd you fail to realize it's not the 1:1 gear. Now I do know some cars don't have these, for example SRT-4's, so therefore depending on shop will dyno them in either 3 or 4. Which 3rd gear ones will read lower, and 4th gear ones will read higher. You could dyno-tune a car in 3rd but if someone is paying for numbers and you're still doing it in 3rd they are not getting what they paid for. Which is obviously what happened to Jon.

 

You can dynotune in 3rd all day long to get your timing, a/f, etc correct. But when a car has a 4th 1:1 and you want to show numbers you dyno it in that gear. Trust me I've been around dynos long enough to know this. I've had my share of dynos in plenty of different shops and operators. Any of them will tell you for accurate hp numbers you do 1:1 gear. Doing it in 3rd will make your numbers lower

 

Will it rev past 4800 in 3rd gear?

On that note, I know that a 400 hp cobra such like jim's, will have a shorter run in 4th gear which is 1.1 than most street driven cars. But at the same time his 3rd gear will still have a drastic time difference from whatever rpm to whatever rpm. My statement was a generalzation of difference in time, not the actual time it takes in your 1.1 gear.

And running on a tread mill in 3rd gear will make you loose weight. But you dont seem to be trying that.

1. There is no such thing as an "accurate dyno reading". Its all imaginary numbers calculated by a computer.
2. If there is no real number there, then no matter what gear you run in, the computer can calculate for that. For example. If everyone in the country dyno'd in third gear from day one, and all the sudden people used 4th gear, then 3rd gear would be more accurate, since that is what the regular is. Get my point? Imagination can not be accurate.
3. Why would using gears to multiply torque give you lower numbers? - Honest question because I would think in my imagination that it would give greater numbers, as proven on many dyno days I have witnessed.
4. 1.1 gear is a great way to try to take computer error out of the equation. Because then it doesnt try to produce more or less hp for the gear.
5. With your theory, then different size tires will make you dyno you higher or lower, but that will get shot down any day of the week, because all a tire size does it change your 1.1 gear ratio. Get my point?

All this about hp and numbers is fucking imaginary. They are computer generated numbers. Its like fucking Pi. Go multiply your hp by pi and thats the cicurmfrance of your ankles.

 

Oh and Jim's car won't be really any different amount of time to wind out 4th as he only has 10 more hp or so and 3.55 instead of my 3.46's. But his would be a tad quicker.

It doesn't matter how you look at it ese. That car should not be making 243, even in 3rd. And they are saying the 243 was in 4th.

I do agree about the whole 3rd-4th debate with what shops have used since day 1. But that's not the main point I have an issue with. They have a dyno that is inaccurate and or operators of it who don't know what they are doing with it. This is the main point of this.

I have since sent him to Steen racing in which he has an appt this Saturday. And I guaranfuckingtee that bitch will make more than any sorry ass 243whp.

 

You're dumb.

 

Hey you're the one who seems to agree with a shop that has a dyno throwing numbers 100 too low. A GTO making 243 when it should be closer to 343. A GT Mustang making 133 when it should be closer to 233.

 

And you are still missing the point. Same car, 3rd vs 4th. I could give you a go kart in 4th gear that ran from 12mph to 15 mph vs a vette that runs from 40mph to 175mph. Commen sense has to set in at somepoint when you try to fight a point.


and thats why you are dumb. When did I ever agree with the numbers? You guys made it clear that those were not good numbers, I just called you guys dumb for thinking its because of the gear the car made the pull in.

 

No I'm just saying if they don't even dyno it in the right gear it makes them look even worse.