Plain and simple, a cai and a tune makes more power than the stock intake and tune.
Please post your time slips for each of those 8 passes. Thanks.
No crap. But if you put the same car on the same dyno, you'll get a lot more accurate results for gains than a run down the strip. There's too many variables with 1/4 mile. It's great for telling over all speed, but you can't tell what part gained what on anything but a dyno.
I thought you had said you ran a mail order tuning business. Now that I realize you meant you run a mail order tune on your car, you have less credit. You said you didn't see any difference with the CAI? First of all, you don't mention dynoing your car with and without the CAI. Second, you don't mention what CAI you were using along with what size MAF, and third, you don't mention if you used 2 tunes or 1.
After reading the above article, how can you argue that CAI don't offer any gains? I was skeptical at first, but now I am a believer!
CAI's don't really introduce any new cold air. If you want to use the less restrictive claim, then i hope you are running some sort of forced induction. If you want to see a cold air improvement, add a functional ram air hood and test it at the track during the day then at night.... this is something that won't show on a dyno.
FWIW - CAI's are just eye candy. Do they look good? sure. Will I eventually get one? sure but not until I've done everything else.
just my .02
LB
Another thing, it would take about 50rwhp to drop a mid to high 13 sec ET. down 5 tenths... and my cai/tune made 32rwhp...
You don't race a lot do you? This comment leads me to say that...
These cars factory rev limit is around 6000 RPM. The flash tuners raise this to 6500 - 6800 RPM. These cars are still making pretty good power to about 6500 RPM. That said, the car is revving higher and staying up in the powerband for a longer period of time. That alone aids in 1/4 mile improvements. Now you add more HP to the mix, well it improves more. .5 second is not unreasonable of a gain when you factor all of that in.
LOL its going to take .1 to get to 500 more rpm, The engine has to work harder higher you go! the 3v is not a high rev engine! It may go up there but its not build too. You'll see maybe .1 doing so.the car is revving higher and staying up in the powerband for a longer period of time. That alone aids in 1/4 mile improvements.
LOL its going to take .1 to get to 500 more rpm, The engine has to work harder higher you go! the 3v is not a high rev engine! It may go up there but its not build too. You'll see maybe .1 doing so.
I said, adding HP ONLY would take 50rwhp to shed 5 tenths on a mid to high 13sec car( the faster the car the more power it takes to make quicker and vice versa). Not on a 15 sec tbird that your adding a bunch of other mods to as well, so that statement had no relation, I am aware that suspension mods, weight reduction, traction, can also lower et's. Im not saying it is a law, i like the rule of thumb thing though, i agree that shifting later(as long as your making power can shed some et time) what i dont agree with or believe is just doing a tune to a 3v will yeild enough hp to shed 5 tenths.
It's also higher when you shift to the next gear and making more horsepower after each shift. fox body mustangs aren't exactly rpm machines either, but I still managed better quarter mile times wringing it out to 5700 rpms before shifting instead of shifting at 5200. About .2 full tenths in that case. Of course that means jack because it is a different animal than a 3V 4.6, but with the same 60 foot times shift point past peak horsepower can still improve times under certain circumstances.
That being said I don't think the 50 horsepower = .5 in the quarter mile is as law of nature like it is being refered to in the thread although it can be used as a rule of thumb. :Track:
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