New owner, age old question :-)

[hjkim550]

Ed,

25 Hp. Hmmm... How much this this bump cost you? I was just curious. I would be interested to know exactly what modifications you have made with which products and how much each cost roughly. You probably did not get each mod dyno'd and have no idea what each component contributes in the overall 25 Hp gain.

Lastly, what does your car sound like? I know Randall initially liked his Deluboz header and exhaust but I seemed to recall a post where he was interested in changing the exhaust due to resonance issues. Any issues with resonance or droning that you dislike?

I think other members would be interested in finding out how much it cost to do the mods in total.

Thanks,

Hyung

[edevlin]

"25 Hp. Hmmm... How much this this bump cost you? I was just curious. I would be interested to know exactly what modifications you have made with which products and how much each cost roughly. You probably did not get each mod dyno'd and have no idea what each component contributes in the overall 25 Hp gain."

Cost, ouch, that is a sore subject. When I first joined the forum when I got the car, other members warned me about the slippery slope of getting into modifications. The mods have been very expensive, but it has been a lot of fun doing them and dialing in the car.

I think I have done 4-5 dyno runs with the car, but it has not been in an organized sequence of parts added. The first runs were with just the intake and chip, the later runs were with different exhaust combinations (I went through several).

As best I can tell the chip and intake added about 20 hp, the complete exhaust system another 5 hp or so (I am putting out a little over 200 hp to the wheels). The Autothority chip is not optimized for max hp, but a high, flat torque curve and throttle response in addition to hp. The car is very responsive now with that chip and very different from the stock ECU tune.

Also, in hindsight, the TTP parts, though high quality, appear to be some of the most expensive you could use. I think the numbers for HP mods are something like this:

TTP carbon fiber intake: 800.00

TTP headers 1300.00

100-cell cats 1200.00

Custom Autothority ECU mod 1000.00

Dansk Sport muffler 800.00


"Lastly, what does your car sound like? I know Randall initially liked his Deluboz header and exhaust but I seemed to recall a post where he was interested in changing the exhaust due to resonance issues. Any issues with resonance or droning that you dislike?"

Its kinda hard to describe the sound. I like the low rumble at low rpm's and the scream at high rpms with the exhaust on the car now. Also, as most members know, adding an aftermarket intake adds some nice sound to the car. The car sounds quite civilized with normal driving, not like with the gemballa and other mufflers I tried.

What I dont like about the exhaust is a sorta metallic sound (not loose cats or baffles, just free flow and engine sounds). You can hear the metallic sound I am talking about if you find the link to the Dansk website, one of their free-flowing exhaust combinations has that sound. As best as I can tell, the intake and headers made the most difference in the character of the sound, as the muffler is similar to stock, except for a higher flow rate.


Ed

[rule1]

I have a 2000 also and have Maxspeed Motorsports headers and muffler plus EVO intake. Thats it, no ecu reprogramming and I put 209HP and 172TQ to the wheels on Imagine Auto's dyno. The HP is 246 to the crank. My car only has 23,000 miles. If you look under my posts you can find my dyno results.

[rule1]

A stock 2000 2.7 should put around 180 to 185 hp on a mustang dyno so I gained 25-30 hp with those 3 upgrades that cost around $1600.00

[edevlin]

"A stock 2000 2.7 should put around 180 to 185 hp on a mustang dyno so I gained 25-30 hp with those 3 upgrades that cost around $1600.00"

I am glad that you had that much of a performance bump with just intake and exhaust mods, especially for the money, thats great. I have read about others, expecially with 3.2L cars, that have had good results increasing hp with exhaust mods alone.

I am not sure what its worth, because many of the companies that sell mods make unrealistic claims about increased HP with their products. But at the TTP website they say you should expect about a 25 hp bump when you do their exhaust, intake and chip for a 2.7L engine. So my numbers seem pretty much inline with what they are reporting. I think the last run I did on a Dynojet dyno was 204 hp to the wheels.

Because I did not do the exhaust system until after I did the chip and intake, all I can say is that the exhaust added another 5hp or so, I dont know how much it would have added before adding the intake and chip. The shop that did the install also said that in most cases with a 2.7L engine, you could expect a 3-5 hp bump with headers and cat-back exhaust.

Ed