Which exhaust yields the most power?
#16
Thats an easy answer...
we Dyno tested the 9ff Variotune Gen II several months ago. The result was a 39HP gain!! We were ecstatic with the results.
Of course the real superiority that the variotune has over all other "competitors" is its complete and absolute lack of resonance, a weigh savings of 20 lbs, the smooth mellifluous soundtrack , but most of all the advanced technology that allows the selection of either a "loud" setting or the quieter "sport" setting.
The beauty of the system is that unlike the fine Kreis-seg, the 9ff's valves are entirely behind the cats. As such, the only diversion involves the mufflers. The importance of this is that the power delta between open and closed modes is negligible.
Its a fully engineered, high quality system gauranteed to please the owner for years. Granted, it wont spit fire - like craig's straight pipes, but at least it will pass smog (if they actually test an AWD TT).
Let me know if you guys want to run another test.
Actually maybe what we should do this time is send all the exhausts to germany so that the american brands can attempt TUV certification. Wherein not only must they be proven to work, but also tested for noise and emissions compliance.
Either way, competition is great as it pushes us ALL forwards.
By the way, there's a tech test in this months Luxury and Modified Exotics...check it out, and our vids too. My favorite is the first - "rolling thunder".
Of course the real superiority that the variotune has over all other "competitors" is its complete and absolute lack of resonance, a weigh savings of 20 lbs, the smooth mellifluous soundtrack , but most of all the advanced technology that allows the selection of either a "loud" setting or the quieter "sport" setting.
The beauty of the system is that unlike the fine Kreis-seg, the 9ff's valves are entirely behind the cats. As such, the only diversion involves the mufflers. The importance of this is that the power delta between open and closed modes is negligible.
Its a fully engineered, high quality system gauranteed to please the owner for years. Granted, it wont spit fire - like craig's straight pipes, but at least it will pass smog (if they actually test an AWD TT).
Let me know if you guys want to run another test.
Actually maybe what we should do this time is send all the exhausts to germany so that the american brands can attempt TUV certification. Wherein not only must they be proven to work, but also tested for noise and emissions compliance.
Either way, competition is great as it pushes us ALL forwards.
By the way, there's a tech test in this months Luxury and Modified Exotics...check it out, and our vids too. My favorite is the first - "rolling thunder".
#19
Originally Posted by sharkster
Maybe the flow was so good and he didn't have sufficient full and the ECU cut back a bunch of timing, boost etc... I've never heard of a turbo car "loosing" power with a straight pipe, no cat etc.. over a muffler, cat and/or any other type of back pressure adding exhaust...
all theory, mind you....
i'm experiencing a similar problem w/ my supra right now. the midpipe right after the turbo cracked, basically giving me half an open exhaust. but the lag has increased by 500rpm.
- chuck
#22
Originally Posted by 993RSClubsport
HI Its Joe @ Fabspeed Motorsports
Obviously "CRAIG" race systems with no cats and 3.0" tubing will support Gigantic power.........BUT that was not out yet and is "outrageous" in terms of realistic street exhaust tuning.
Obviously "CRAIG" race systems with no cats and 3.0" tubing will support Gigantic power.........BUT that was not out yet and is "outrageous" in terms of realistic street exhaust tuning.
IMHO, the Fabspeed Loud is the best available exhaust for those seeking good power from an off-the-shelf product inventoried and readily available. My exhaust is something entirely different, custom made for those that want “gigantic” power that is not readily available off-the-shelf. That being said, Fast Intentions has recently received many inquiries about my exhaust and rumor has it that Fast Intentions may create a jig and make the exhaust more readily available (perhaps even sold by a board sponsor).
Craig
Last edited by Craig; 07-25-2006 at 11:47 PM.
#23
Originally Posted by NAPO
IMO straight pipes is the way to go
Craig
#24
Originally Posted by ECB
Of course the real superiority that the variotune has over all other "competitors" is that allows the selection of either a "loud" setting or the quieter "sport" setting. The beauty of the system is that unlike the fine Kreis-seg, the 9ff's valves are entirely behind the cats. As such, the only diversion involves the mufflers.
Originally Posted by ECB
Granted, it wont spit fire - like craig's straight pipes
Craig
Last edited by Craig; 07-25-2006 at 11:49 PM.
#25
Originally Posted by 9Eleven
What is everyone's opinion of the Europipe? Not the greatest power gain, (18 hp) but a beautiful sound and construction.
Craig
#27
I had fabspeed LOUD from FVd- but it was fabspeed.. I bought it about 4 years ago.. great exhaust..... only one note: the flanges holding the exhaust tot he frame could have been made better( design?)- I had to weld it twice...
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
#28
Hi,
In our case using the normal 93 pump program the staright pipes we created against the exhaust portion of the turbine, without using any kind of mufflers, yields to a gain of 29 hp to the wheel.
Francisco
In our case using the normal 93 pump program the staright pipes we created against the exhaust portion of the turbine, without using any kind of mufflers, yields to a gain of 29 hp to the wheel.
Francisco
#30
Originally Posted by iLLM3
I would love to know how my FVD race stacks up against the competition, i love it!
Evan