ok so basically on a mustang dyno cam only i put down 383 and 372, with 224r cam full bolt ons and i am an m6, since i have added prc stage 2.5 5.3 heads milled to 59cc and true dualsi just got a call saying it dynoed 398rwhp on a dynojet and i didnt get a torque number..i am picking it up saturday so i dont have a graph to post. i thought after spending 2400$ on heads and exhaust i would havce gained more....any input?, im seriously considering just getting rid of it right now, its just so depressing after all the hard work and money put in

 

400 rear wheel is what id expect the car to make. Is the car at Speed inc?

 

i got over 400 cam only i have a little bigger cam though and i still have stock heads......mine was on a mustang dyno too at straightline.

 

this is EXACTLY why im not spending a chunk on Heads,,,,my 241's worked over will give me plenty (for my money spent.) If i get lucky, maybe i can do up the 243's...but spending that kind of money and getting no gains is not a good feeling. Sorry man.

 

Every dyno is different... I'd say get some track numbers and see what she does... Dyno numbers don't say much and you can't compare them when you are talking about two different dynos... Take it back to the Mustang Dyno if you really want to see your gains..

 

also,,arent mustang dynos very inaccurate? meaning they tell ya you are higher than you really are? I Thought i was told that by someone on here at one point,,ive never dyno'ed (also out of my budget) so i really dont know,,but they all cant be the same,,,can they?

 

Yeah man I dont know what numbers you were expecting but 400 isnt to out of line I dont think for your set up. You dont have the biggest cam in the world in the car so like pro2low said hes got a bigger cam and still laid down a little over 400. ALot of guys make over 400 cam only but they are running big cams MS3,MS4 for example

 

Pro2low what heads do you have on the car? You have an 02 motor so are those 241s or maybe 243s?

 

241's dont get the credit they deserve,,they flow pretty good stock, and can flow great if worked properly,,,AND, u can usually find them on here in the 100 to 200 dollar range.

 

i think its the other way around a mustang syno is supposed to put alittle bit of a load on it ive heard so they give you lower number.. and a dynojet gives out the higher ones... im not positive tho

 

i think your right,,i just know that they give different numbers compared to each other..which is kinda gay, but whatever works. To me,,the best way to tell where your at is at the track...which i also havnt done.

 

exactly what i don tunderstand...i put out more cam only than with heads. cam only i was 383 on a mustang, with heads was 398 on dynojet?

 

my cam only numbers where high and my track times where great... I'm happy.

oh wait were talking about your car... j/k dude.

honestly as stated above all dynos are different, plus its just a comparitive measurement to see what you car does with upgrades. The real test is at the track

 

That's right, you'll see lower numbers on the mustang vs. the dynojet since the mustang is a loaded dyno. A load is placed on the roller to simulate real world driving conditions. Dynojets are inertial dynos, just a big drum in the floor for your car to spin. Mustang's are supposedly a more accurate measure of true rwhp.

 

A mustang dyno will show number a little lower because of the way the car is loaded. For instance you put dwn 410 at speed inc.. at straightline you may put down 395.. You have to remember that the way it is loading the car on different dyno's has a huge differnce on a tune.

 

Dynos don t mean ****, my old setup heads/cam made 362rwhp and would run 11.20's all day and 9.90 on a 150 shot... Go run that bitch

 

That jump from 383 to 398 was just from going to the dynojet over the mustang. So it hans't gained any power with the heads? And that's only a 4% difference...Usually a Mustang reads 10% lower than a dynojet. So either the correction is way off on one of the dynos, or it lost power.

Time for a different tuner...

 

QUAD- i have 241's STOCK not ported or anything......take it to straightline!!!!

 

My mustang made 265 on motor and went 10.70s on a 150 shot. Almost full weight with OEM junk suspension.

But I also lost a bit through the converter.

 

maybe im getting caught up in the numbers craze....i guess ill just have to drive it and see, i just dont see losing power