Trinity v.s. Toomey
- Thread starter yamaha28
- Start date
no differnce in the power at all same pipe differnt name im runing a graydon witch is the same as all the others but just older and made up of more cones (meaning smaller peices)
I got a lrd (right bend) i like it alot. Its more of a topend pipe but overall a good pipe. I have never been around toomey or tried it myself. But i wouldnt hate on it from what i read.
I dont think its so much the bending that restricts the pipe its the dimensions length how big around it is smooth flow etc. But im no builder or even smart. lmao
I dont think its so much the bending that restricts the pipe its the dimensions length how big around it is smooth flow etc. But im no builder or even smart. lmao
are we not all looking for higher rpm's = more power
now lets address the heat on the cylinder issue of these air cooled's
But the reason you advocate an F7 is because "it screams" which is a result of a shorter tuned length which results in a higher RPM range. Crossover pipe (toomey in this case) is not NECESSARILY a shorter tuned length than an F7. It just happens to be that toomey pipes do have different power characteristics than an F7 pipe. Not necessarily bad depending on how you are running your engine, just different.
The actual heat radiation of the pipe is negligible compared to the infrared radiation off the aluminum cylinder. Steel is actually a fairly poor heat conductor compared to aluminum so from a "design" standpoint a crossover pipe versus a "side bend" (either right or left bend depending on the model) has much less to do with heat and MUCH more to do with fitting a given tuned length inside a given frame while also allowing it to be installed without TOO much headache and aesthetics of a pipe that curves and swoops over on one side versus one that crosses back over before turning back.....
It might have an effect but it's like saying that running RAZR's versus Holeshot's makes your bike FASTER. Logic says, same size tires will run the same speed. The difference in tread pattern might make the tiniest bit of difference once in a blue moon.
If a crossover pipe and a "same side" pipe are made to the same specs they'll make an engine run the same. I could see the crossover making cylinder heat difference of maybe 2 deg F. Is there a difference? yes. Is it enough difference to worry about? no.
I've never taken a highly tuned engine and run it on a toomey pipe but I know someone who has..... Ken O'Connor. He had that long rod engine on one and wasn't happy with the heat so he replaced it..... with a CPI which is also a crossover pipe! The CPI pipe lowered the cylinder temps significantly NOT because the pipe radiated less heat but because it offered less restriction to the exhaust flow.
The tune of the pipe is what made that difference, NOT crossover versus "same side".
Now, to the OP (and awk actually), I run a F7/CT racing/trinity right bend on my vito's BBK. It rocks my socks off and I LOVE it. I recommend one because I've had good service out of this particular pipe, not because it has actually out performed a toomey pipe.....
i'd like to see ken do the same test with a right bend
[qoute] .......I could see the crossover making cylinder heat difference of maybe 2 deg F. Is there a difference? yes. Is it enough difference to worry about? no. [qoute]
thats speculation, not actual test results ???
[qoute] .......I could see the crossover making cylinder heat difference of maybe 2 deg F. Is there a difference? yes. Is it enough difference to worry about? no. [qoute]
thats speculation, not actual test results ???
I actually only poked my head into this thread to dispell the MYTH that a "same side" bend pipe will inherently outperform a "crossover" pipe.
On blasters, the right bend pipes DO happen to have a shorter tuned length (thus higher RPM range) than the left bend pipes. This is a function of original design and, I believe, happens to be total happenstance.
One could design a crossover DRAG pipe and put it on and have a HIGH revving engine and TONS of power.....
That being said, I run an F7/CT/trinity/power pros right bend pipe and except for some fitment issues (ARGH what a PITA to install!!!!!) I'm VERY pleased with the power it (and the other accompanying mods) puts out. I would have to recommend it again but ONLY for a lack of experience with a toomey system. There are a LOT of happy toomey customers out there too!
I'm unsold on heat being a major factor. Even the crossover pipes sit outside of directly in front of the engine. I do know they radiate some heat *possibly* towards the engine.... but by that logic you shouldn't have an air conditioning system on a car because the condenser puts heat into the air stream right in front of the radiator.... might overheat your engine some by running the A/C.
BTW, on a 100 degF day, I have the A/C wide ass open and could give a sh*t less about how much heat it might put into the radiator LOL!
i like my pipe and apple pie love me some home maid apple pie.
who agrees with me i know somebody does
come one apple pie
ps. a f7, power pros, trinty and the 50 other names sounds great with a toomey silencer
who agrees with me i know somebody does
come one apple pieps. a f7, power pros, trinty and the 50 other names sounds great with a toomey silencer
I bought a toomey kit for more than just sounds. Sound was actually irrelevant in my purchase, I bought it because it came with a good modification kit for a stock engine - which I had. I'm not saying it's the best choice. I am very happy of my results and forward that on to other people. I'm not arguing, just saying why I chose Toomey and why I suggest it. I've never owned a right bend pipe. It could be 100x better, I don't know. I do know that my toomey performs very well, I have no cooling problems (yet), and I'm happy with the overall experience. Yet another thread asking for a good opinion is being wasted over needless arguing...
