Search results

Everything got reset in the process so it feels smoother. The IMRC are closed during low air speed conditions and help create air turbulence for a better mixture and improve response but open to avoid being a restriction as air speed increases.

If you don't change parts that alter airflow characteristics through the engine (a catback does not, for example) then you don't NEED a tune even though you may want a tune. When you change the amount of airflow the engine is capable of moving, you need a tune. If you change the way the...

so finally, the lower mount on one of them slipped out of place and against the control arm. that was it for me. done.

the 4.09s are vaporware

different dynos work differently. that's one more reason it's pointless to compare dyno numbers with people in different places on different dynos. use a dyno to tune your car in a controlled environment. that's about it.

http://www.mustang6g.com/forums/showthread.php?t=51877

of course. it's not fuel, it's crankcase fumes. you'll have to put your AC on recirc and close your windows.

Yes at the trade off down low, which the gt350 does not lose.

he has a GT350, he was referring to his car.

maybe it depends on what we are used to....the mustang is by far the weakest V8 performance style vehicle I have ever owned under 3-4K RPMs. That's around 75 cars.....

maybe you ran over a grocery bag

This isn't taking into account for the more lethargic power delivery at part throttle in going to work or store situations. The Boss and CJ will not make as much torque at 30-60% throttle at 1000-3000 RPM. Be sure you calculate what percent of your time is spent between 1000-3000 or 5000-8000.

good point. GT350 fits without additional modifications to the hood or motor mounts. it starts pulling ahead of the stock manifold right around there and gets you an extra 1000 RPM or so of "powerband." several dyno graphs/threads on this topic...

well it's what I purchased but that doesn't mean it's better. if you are building a race car that makes all the power from 5000-8000 RPM and you don't care what it feels like from 1000-5000 RPM, then get the CJ. If you are adding parts to a street car and want to pick up about 50 HP from...

I didn't say there was a restriction, that depends on power level. You can make 2000 HP through a 2 inch exhaust, but that doesn't mean it won't make 2500 with 3 inch or 2800 with open headers.....(for a gross example).

a chain is only as strong as its weakest link. a 3" exhaust with a 2.25" bottleneck is a 2.25" exhaust. essentially.

you save money by not spending it. pretty simple.

My 1050 hp C7 I have 1 7/8 headers. unless you are going to have over 750 or 800 then you really don't need more than 3/4....

headers are not exempt from the law of diminishing returns. they are definitely better headers, whether or not they are a value at the difference in price is a little more of a personal thing.:thumbsup:

ok i was off, 475....so about the same as a 15 with E85, headers, and an intake manifold.:thumbsup: yeah, not the same cars.