bull ******* **** a dyno jet will give higher #s ask ott , ask any one that " knows what they are doing". a dyno jet will read higher than a mustang dyno all day.

 

Re read this he is on to something i think

To further that most dyno's will read different all over becuase thats the nature of them. Some are different models, some older, some newer, some people use sae cf, some people use std or uncorrected.

What is important is the measured gain that you get from that dyno. For all you know scott could have been making 180 whp stock on this dyno or 220. Thats why baselines and staying consistent with the dyno and cf are important but at the end of the day its just a tuning tool thats it.

 

troof.

 

Too many people worried about numbers on this site. Were you happy with the gain before you saw the numbers? is your car fun to drive? is it fast enough for now? I find it funny how you can be bummed out on just the numbers your car could be the same power on an inflated dyno laying down 330 and you would be super happy with your car i bet.

 

lol ^^^^^^^

such a great observation!

 

more troof

 

srsly i was thinking the same thing earlier ..

 

Mustang vs. Dynojet, you are both right and both wrong.

In suggested setttings mode, the Mustang dyno's read ~10% lower than dynojets. Most consider the Mustang to be the accurate number but people prefer higher numbers, so many people calibrate the Mustang dyno's to read higher. This unfortunately as Area knows, means you could calibrate it to read whatever you wanted.

At ZZP, we calibrated ours using known averages of about 10 cars. 2.4 Cobalts stock read just under 150.

Stock LSJs read 205-215 on our dyno generally. Stage 2 cobalts high 230's.

Stock Grand Prix read 150-160 NA and 195 supercharged.

having dyno'd and seen over 1000 dyno charts, we are comfortable that our dyno is accurate. Generally when we bring a car from our shop to another with a dynojet , it will read differently (usually higher) on the dyno jet. A few have read a little lower, most read slightly higher, some read a lot higher (such as dynotune motorsports).

I have personally taken my GTP strapped it on one dynojet and made 3 pulls all at 340. Then unstrapped it, driven down the street to another dynojet and dyno 330 consistently. I also dyno'd in 2nd and 3rd and usually picked up 3-10 WHP in 3rd. Our dyno will normally show higher #'s dyno'ing a Cobalt in 4th instead of 3rd unless the longer pull causes heat soak and KR, in which case it can be lower.

Some people report with STD correction which gives higher numbers than SAE, which is considered the standard. ZZP generally dynos in SAE.

If someone reports dyno's more than 10% out of the normal range for a car with the mods it has, they are generally mistaken, lying, or the dyno has error. Any one of many possibilities. But there is no magic car or magic tune that is going to net you say 15% more power with all else being equal to someone else's car. Furthermore, if someone is claiming dyno's that don't match track times or mph, then you also know something is amiss. No one is dyno'ing a cobalt over 300WHP and still running 13's. Either their 60's would be 2.5's, the car weight 1000 pounds more than normal or they aren't really making over 300WHP.

 

I'm not being a smart ass, but seriously, that is the best post I have seen you make yet.

Thanks for the information

 

i know for a fact my car is making over 300whp. over and over and over again.

 

there had to of been something wrong with the dynojet i was on i made 215whp on stg2, and full bolt ons. but on a dynapak with just stg2 and intake i made 236whp. but either way my car felt faster with the more mods so im happy high or low numbers my cars faster than b4

 

Sub'd!

 

ok guys what dyno would you go by? wich one is more acurate. so say i went to a dynojet and put down 322 whp and i already did a mustang dyno .what numbers would you go by,the mustangs or the dyno jet.

 

just tell ppl the lower numbers so they think its slower than if u said the higher numbers ;] its a way to make money

 

Hopefully they would read the same and you would know that they are both accurate.

 

im going back to the dyno in a weekor 2 maybe 3 but anyway im going back with meth 75/25 mix and a 2.9 pulley. hopeing for another 20 to 25 whp.

 

trap speeds with a moderately good short time will tell more than a dyno will

 

so very true.

 

so very NOT true

for instance my last trip back in october where it was only 107x you can't get an accurate idea of trap speed if during the pass your having to let off the throttle almost completely several times during the pass.

Trap speed is only a true indicator if you have the perfect pass, which theres alot of supporting mods you need to make that happen with a 300whp car.

 

trap speed is a good indicator if you know how to drive your car

 

obviously if you are having traction problems, clutch problems, or any other problems that would cause massive amounts of throttling, then traps aren't gonna tell you much.

but for most people that are constant drag racers and set up for drag racing and do it on a consistent basis, traps speeds will tell you a lot.

 

I dont care what you think.

 

It seems people would much rather switch dynos to find a higher number than rely on an actual statistic.

 

Yeah.. the real objective should be getting the most power out of your car (reliably and repeatedly), regardless of the number. Most people wont really care what you make anyway, unless you break a record.

 

Thats wtf im asking wich one is accurate?