Ok so I just some bolt-ons installed and tuned with uprev.

Nismo intakes, gtm non-resonated test-pipes, motordyne dual exit exhaust and uprev osiris dyno tune and quaife lsd.

The shop told me I dynoed at 247whp on their mustang dyno after the tuning.

I know mustang dynos are on the low end, but I think this seems off for my mods on the HR.

What would this equate to on a dynojet?

 

you realize the end number is meaningless, just a number.. and what matters is the gains between your baseline to after your mods.. the power curve.. and the drive-ability ? there is no 'equates to', but mustang dynos do read low.

it's just a number, don't fixate on it.

 

I believe you actually lost power with the nismo intakes, you'd be better off with the stock air boxes.

 

Agree. As we have said time and time again the numbers are relative. If you have before and after numbers on the same dyno, those numbers are valid and worthwhile determining performance gains.

Without before and after numbers may as well take a stab in the dark.

 

it may seem low, but as mentioned unless you know your starting point you wont know if the gains are what you expected. One thing we have found over the years is that not all Z's are the same and vary in horsepower even at stock levels.

The intakes are probably not helping you, the Injen's work very nicely

 

Lots of things can factor in on low readings. I was disappointed on my last dyno. I found out a lot of things though. 1) I had a bad exhaust leak. 2) True duals were in order. 3) To never dyno at a shop that doesn't place fans in front of NA cars.

If the humidity is high, I hear that it will affect your numbers as well.

These numbers are for tuning. Never use different dynos. I got on 1 for a dyno day and mine were way low. Everyone was getting bad #s that day. They weren't even using fans. Pissed me off.

 

get injen intakes and retune! Im going to uprev in austin this friday. Ill be posting up my numbers(stock headers, everything else aftermarket)

 

I am thinking about going TT so swapping out the intakes for minimal gains won't be worth it, I did instal the heatshields yesterday for the nismo intakes and noticed less heatsoak.

Regardless the car feels like an absolute monster after these mods combined. The quaife LSD and bf g-force tires make this thing grip and not skip a beat, the sound is sick and the tune makes the car rev so effortless and smooth. MANY MANY THANKS TO HP LOGIC FOR THE EXCELLENT QUALITY WORK! I LOOK FORWARD TO CONTINUING THIS PROJECT WITH THEM.

 

I got 256 rwhp on a mustang dyno last summer on my 07 auto with only fujita intakes. those # sound a bit low, your more around the 280's or 290's with your bolt on's.

 

not on a mustang dyno.. that'd be like 340whp on the dynojet.

those 230-250 seem in range for a bolt on hr on a mustang dyno, but really there is no point debating numbers between different dynos. pick one and do all your tuning on the same machine.

 

Here is a link from the mustang dyno event last summer with vids and pics.
http://www.chicagoz.com/forums/showthread.php?t=20065