In a message dated 98-08-14 23:06:11 EDT, you write:
<< Gibson claims that the cat-back system on my truck gains about 30hp.
I haven't dyno'd the truck before and after, but based on strip testing
alone (calculating the horsepower from ET's and trap speeds), that
figure seems accurate. >>
Jon,
I appreciate your comments, however, beware of advertised 30 hp gains with no
more than a cat-back system. For marketing purposes, companies will take their
very best dyno result and advertise it. Also, not having read Gibson's ad, I
venture they claim "UP TO" a 30 hp claim, which is probably true for ONE of
their test results. As for Thrasher, these are a group of full time automotive
engineers who have Thrasher as a part time business, so I think their claim of
1 hp decrease for each 1" bp is probably accurate. Regardless, the purpose of
my original email was to educate those on the list, contemplating spending
money on exhaust mods, so an informed decision could be made with respect to
realistic hp gains and "bang for the buck."
Regards,
Steve Waller in Houston
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:09:22 EDT