pluckyew said:re: http://dealerssporttruck.com/produc...search=volant
that web page claimed: "...More miles to the gallon and up to 18hp and 40lbs of Torque..." for only $300, but does this really work? if this was guaranteed to gain 18hp then i'd have it installed.
If you can believe it the guys at airaid gained 20hp and 46 ft. lbs of torque (not peak) for the 2k4 F150. Here's the linkpluckyew said:re: http://dealerssporttruck.com/produc...search=volant
that web page claimed: "...More miles to the gallon and up to 18hp and 40lbs of Torque..." for only $300, but does this really work? if this was guaranteed to gain 18hp then i'd have it installed.
Dang!MaxPowers said:Dang. I wonder when they are coming out with one for the Titan.
I agree with some of the things, But again my WS6 with an LS1 did noting but gain HP and TQ with an aftermarket lid! I also gained a 10th in the 1/4 mile and my et went up 2mph. If i can find that dyno sheet i will try to post it later!V8toilet said:Dang!![]()
Chances are that when they do if it's anything like the ones for the Tundra that it will just cost you a little low end torque in lieu of a few top end horsepower. They market the crap out of these things that they are cold air intakes as if the stock systems aren't but most of the time what people have is already a cold air intake system and they charge upwards of $300 for these pieces of junk.
The same goes with exhaust systems. I bought an $800 TRD dual exhaust system for my truck and it cost me so much low-end torque that I couldn’t spin the tires even in a turn but I could when I had the stock exhaust. I tried a JBA single Evol exhaust and it was better but I still lost a little low-end torque. The truck still felt stronger with the stock exhaust on. The JBA Evol exhaust was a 2-1/2” system and the stock system is 2-3/8”. The engineers put the perfect diameter exhaust tubing on these things for the best compromise between low end and top end and changing it, on a Tundra anyway, only hurts performance in the low end where you need it the most.
The best part is I bought a $99 Spintech muffler, cut the stock muffler off, and welded the Spintech muffler in it’s place reusing the stock 2-3/8” tubing. I did this trying to see if the engineers left some power to be gained at least in changing the stock muffler. With this setup I felt a seat of the pants improvement so to confirm that I dyno tested it on a Dynojet 248c. I ran a few times with the stock exhaust and than I ran with the Spintech muffler installed all on the same day on the same dynamometer for more accurate results. It showed that I gained 12 ft. lbs. and 8 horsepower with gains from down low up to the redline.
So you guys with your Titans might want to save your money and try some traditional hot roding and just swap out the parts that are most likely to be restrictive. With the exhaust system that would be the muffler and maybe the manifolds/ headers. I tested a K&N clone intake system against the stock intake system at the drag strip and I ran quicker ET and higher mph with the stock filter box than I did with that piece of noisy crap intake system. All that intake system did was make my truck sound like it had a four barrel carburetor on it. These trucks are so well engineered today that it’s very hard to make large gains with just bolt on parts. Often times the stock exhaust tubing diameter is the perfect size. I properly engineered single exhaust system makes just as much or more power than a dual exhaust system and its lighter and cheaper too.
V8toilet said:Dang!![]()
Chances are that when they do if it's anything like the ones for the Tundra that it will just cost you a little low end torque in lieu of a few top end horsepower. They market the crap out of these things that they are cold air intakes as if the stock systems aren't but most of the time what people have is already a cold air intake system and they charge upwards of $300 for these pieces of junk.
The same goes with exhaust systems. I bought an $800 TRD dual exhaust system for my truck and it cost me so much low-end torque that I couldn’t spin the tires even in a turn but I could when I had the stock exhaust. I tried a JBA single Evol exhaust and it was better but I still lost a little low-end torque. The truck still felt stronger with the stock exhaust on. The JBA Evol exhaust was a 2-1/2” system and the stock system is 2-3/8”. The engineers put the perfect diameter exhaust tubing on these things for the best compromise between low end and top end and changing it, on a Tundra anyway, only hurts performance in the low end where you need it the most.
The best part is I bought a $99 Spintech muffler, cut the stock muffler off, and welded the Spintech muffler in it’s place reusing the stock 2-3/8” tubing. I did this trying to see if the engineers left some power to be gained at least in changing the stock muffler. With this setup I felt a seat of the pants improvement so to confirm that I dyno tested it on a Dynojet 248c. I ran a few times with the stock exhaust and than I ran with the Spintech muffler installed all on the same day on the same dynamometer for more accurate results. It showed that I gained 12 ft. lbs. and 8 horsepower with gains from down low up to the redline.
So you guys with your Titans might want to save your money and try some traditional hot roding and just swap out the parts that are most likely to be restrictive. With the exhaust system that would be the muffler and maybe the manifolds/ headers. I tested a K&N clone intake system against the stock intake system at the drag strip and I ran quicker ET and higher mph with the stock filter box than I did with that piece of noisy crap intake system. All that intake system did was make my truck sound like it had a four barrel carburetor on it. These trucks are so well engineered today that it’s very hard to make large gains with just bolt on parts. Often times the stock exhaust tubing diameter is the perfect size. I properly engineered single exhaust system makes just as much or more power than a dual exhaust system and its lighter and cheaper too.
so you dont have any dyno's? i know that changing backpressure and diff. effects at diff. rpms and that putting a dual out muffler on, depending on its flow rate, will tend to free up ponies at the upper rpms and will have a adverse effect towards the bottem. but not to the extent you described, especially on the tundras v-8. not a expert, just like to keep the facts straight.V8toilet said:If I can't spin the tires with the duals but can with the stock exhaust in a turn than that is a seat of the pants difference enough for me to know I lost some power down low. Most guys who have done some hot rodding know that bigger is not always better when designing exhaust systems and putting a dual 2-1/4” exhaust system on in place of what was once a single 2-1/4” system for a 2001 Tundra hurts low-end torque.
I know what you mean by the LS1 engines. The Chevy Vortec engines respond much more favorably to such modifications than most. I'm just telling you guys my own experiences with my Tundra in hopes that it might help you Titan guys out if you run into the same troubles that I did. Take it with a grain of salt though as I don’t own a Titan and this is the internet were everyone is an expert. :bye: