Exhaust Mods

takza · Post by **takza** » Fri Apr 22, 2005 10:22 am

I might be getting over 79 HP out of my 3AC using advanced ignition and heated fuel.

Prove it you say?

Can't...but have seen it take 28% less time to go from 25 to 60 MPH in 5th using advanced timing and heated fuel vs OEM timing and heated fuel.

Have now seen it take 8% less time going from 30 to 55 MPH using heated fuel vs non-heated fuel...using advanced ignition for both tests.

So it might be putting out around 84 HP? B)

Or more like +36% in lower RPM torque? :blink:

Since the engine is rated at 75 ft lbs torque...maybe over 100 ft lbs?

You don't need other engines for power??????

shogun · Post by **shogun** » Fri Apr 22, 2005 9:19 pm

i made my exahust system custom, i worked with the guy who makes my racecar system and i got a system with 10 psi of back pressure and an almost stock sound, going on the freeway at 110 mph you cant hear the mufflers oly the wind ande the passengers

Typrus · Post by **Typrus** » Sun Apr 24, 2005 2:05 am

Put it on a dyno Takza.
Why 10PSI?

takza · Post by **takza** » Sun Apr 24, 2005 4:25 pm

Typrus wrote: Put it on a dyno Takza.

I just had to make my point...the increased power that I thought I had is actually there.

I think the tests are pretty accurate and probably relate more to torque...too bad I can't run it up to 3K or so.

Typrus · Post by **Typrus** » Mon Apr 25, 2005 8:56 am

A Dyno tests HP and Torque and only usually costs about $35 for a run. The guys might chuckle that you have a Terc on the Dyno, but I'd say its worth it. I want to know what you are pushing.

Again, why 10PSI versus 3PSI?

shogun · Post by **shogun** » Mon Apr 25, 2005 12:23 pm

i measssured the back pressure with a mewthod that sport compact car had devised, with a o2 sensor bung and some welding i came up with tahat and it gave me 10 psi of back pressure, that is no a lot bu just enough so you dont loose any bottom end torque