Bolt on Boss guys...post up your numbers!
- Thread starter EJR
- Start date
Interested in the weight reduction efforts. Considerable variance from factory weight. Solid Dyno numbers need to followup with a timeslip.
When I had a cold air and cat deletes my car put down 430/390.
Mustang Dyno (AKA: the heart breaker) Stock was 361. Full Kooks exhaust, Airaid CF intake, and AED tune later it makes 414. So a gain of 53 RWHP.
Our Dyno is really stingy compared to most others... but It's just a tuning tool, not intended to compare to every other dyno.
But... that being said, we generally are about 14% lower than the average dyno jet, so that would put me at around 472 to the tires if I strapped it to one of those.
Our Dyno is really stingy compared to most others... but It's just a tuning tool, not intended to compare to every other dyno.
But... that being said, we generally are about 14% lower than the average dyno jet, so that would put me at around 472 to the tires if I strapped it to one of those.
Good results guys. My car made 390whp bone stock on the same dyno. With full exhaust, air intake, and tune...made 430whp. Gain of 40. However I dynoed the bolt ons with 15 inch wheels and big side walls (will wrinkle and drop a bit of hp) so i may have actually gained more. The remaining 30whp I got came from parasitic losses and drivetrain efficiency. Not a single CFM more through the motor. Still on the same wheel/tire.
Dare I suggest that a more telling picture of bolt on numbers perhaps may be reflected at a real 1/4 mile? I only say this because comparing from dyno to dyno is always a crapshoot. I am impressed with some of these numbers though, I have to say!
Never dyno'd mine, only took it to the track. I am naive and trusted that my AED canned tune was satisfactory and never dyno'd the car, lol.
Never dyno'd mine, only took it to the track. I am naive and trusted that my AED canned tune was satisfactory and never dyno'd the car, lol.
ET's are even worse to find true horsepower of a broad range of suspension setups, tires, gears, drivers, track conditions, climate conditions, etc, etc. at least with dynos the factors are more limited. I'd rather come to my own conclusions about relative power from which dyno and which day, than to have to figure out what that myriad of factors means!
I agree. My car will never see a dragstrip. If my care puts down 20 more hp with a CAI and tune I feel like I have accomplished something. Ditto when I personally measure intake restriction of the factory CAI vs. Steeda.
That's why instead of et you go by trap speeds.. only true way of measuring to verify what a dyno says.. this has been discussed so many times in the 2011-2014 section.. so for instance you have a 410-420 car it should trap in the 116-119 range a 420-430 in the 118-120-1 range 440-450 whp 122-125 and so forth.. so you guys claiming 460-475 whp I would hope to assume your trap speeds are in the 125-127 range...
seriously, its like beating your head against the wall! how is this still a viable suggestion? all the factors I described above effect every aspect of a timeslip INCLUDING MPH!
dyno's are the closest thing to a controlled comparison as you can get without everyone in the world congregating at 1 dyno on the same day at the same time.
dyno's are the closest thing to a controlled comparison as you can get without everyone in the world congregating at 1 dyno on the same day at the same time.
This...
How do people think that dyno's are more comparable then DA corrected trap speed? You can easily go to 5 dyno's and see a +/- 25 rwhp difference.
But even having a couple bad passes at the track you should be around 1-2 mph of what your car is making power wise.
What tires, suspension, and class of driver are used to obtain those trap speeds? Face it there is no certifiable way to compare unless it is on the same Dyno.
Mine stock 2013 Boss put down 392. Do I think it really did, no that seems a little high. However it is a benchmark that I will compare to when I make mods. I plan on returning to that Dyno because it is at my local track I race on.
Mine stock 2013 Boss put down 392. Do I think it really did, no that seems a little high. However it is a benchmark that I will compare to when I make mods. I plan on returning to that Dyno because it is at my local track I race on.
PFish is correct on this one guys. Think about it, trap speeds are dependent on many "variables" as he mentioned. Not the least of which is driver performance (e.g. a sloppy launch). The whole purpose of a dyno is its a controlled, repeatable "environment" unaffected by driver, weather, tires, traction, wind direction, etc.....
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I completely disagree. Dyno's have a different set of variables. My trap speeda never change by much from bad runs to good runs. Only time they change is when you completely get out of a run.
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