Snakeoil??? <---Ported stock Throttle Body......

[lockw33d]

i just dont see how this will help any since the blade is the smallest pat of the TB and its the stock 65mm, it doesnt matter what size the opened the entrance up to... am i correct in my thinking

http://cgi.ebay.com/ebaymotors/Port...996358574QQcategoryZ33558QQrdZ1QQcmdZViewItem

 

[Dan_Soprano]

I don't get the title to this thread.... , Anyways, I don't see any power gains from this. I CAN see some added turbulence from the lip around the trottle blade though. Waste of $$ IMO.

 

[lockw33d]

I don't get the title to this thread....

Back in olden days traveling sales men used to sell snakeoil saying it cures everything, so now its an expression for used for anythign that says its going to do miracles but doesnt

 

[Dan_Soprano]

Back in olden days traveling sales men used to sell snakeoil saying it cures everything, so now its an expression for used for anythign that says its going to do miracles but doesnt

ahhhhh ok. Gotcha.

 

[twogts4us]

That TB is a joke...so what has he done to it? Trimmed the butterfly shaft? Hahaha!

Don’t waste your money on a 70mm or 75mm throttle body, this is all you need...The flow area of this TB is about 69mm

Should have known...69 is perfect. But 70 or 75 is a waste of money? Please dude, don't get us started on what is or isn't a waste of money.

You can calculate this figure yourself if you are unsure about it.

Yeah, I'd just like to know how he came up with this calculation. In fact, I just asked him on Ebay...wonder if he'll reply...?

 

[wms004]

i just dont see how this will help any since the blade is the smallest pat of the TB and its the stock 65mm, it doesnt matter what size the opened the entrance up to... am i correct in my thinking

http://cgi.ebay.com/ebaymotors/Port...996358574QQcategoryZ33558QQrdZ1QQcmdZViewItem

Throttle body and plenum combo is the way to go.. Not great for power/dollar, but at least it will be somewhat noticable.

 

[mitchellwerkes]

Snake oil... kinda

Looks like some guy just ground down the blade shaft. It would give more area, but it isn't very pretty, and definitely not precise enough to calculate the boost...

 

[twogts4us]

Yeah, I'd just like to know how he came up with this calculation. In fact, I just asked him on Ebay...wonder if he'll reply...?

Well, he did reply - ladies and gents, I present to you C.P. Engineering (I think he left the "R" and the "A" out of the name of his <cough>Company<cough>.

There is more to throttle body flow then just diameter. Read the next sentence, you can prove it yourself. (Flow area = area of throttle body - area blocked by shaft & blade) So to increase flow area you either have to increase the area of the throttle body (larger diameter) or decrease the amount of area blocked by the shaft and blade (port it).

Ummm, sorry dude...my question was "How did you come up with this statement? The flow area of this TB is about the same as a throttle body with a 69mm diameter and a stock shaft." Telling me to prove it myself doesn't make me want to purchase your product, not that I would anyway...
Sooo, I've asked him for additional info -
"I don't want to prove it myself. I want to understand how you came to the conclusion that this TB flows the same as a 69mm TB. Was this ported TB bench flow tested?
Also, it seems to me that hacking away at the buttefly shaft could cause considerable turbulance. How did your engineering avoid this?"
I'll let you all know what I hear...

 

[jstreet0204]

The area of a circle is (pi(3.14) * radius * radius)
Then you have to subtract the area of the blade shaft, assuming stock is about 10mm (just guessing here).

So on a 69mm tb with a 10mm shaft, the area would be
(3.14 * 34.5 * 34.5) - (10*69) = 3047.3 square mm's

a 65mm tb with a shaft shaved down to 5mm would be
(3.14 * 32.5 * 32.5) - (5*65) = 2991.6 square mm's


a 65mm tb with a 10mm shaft would be
(3.14 * 32.5 * 32.5) - (5*65) = 2988.375 square mm's

This is assuming that you could shave the shaft down 50% the entire length of the shaft, but judging by the pic, he has not.
So, you can see if he had actually shown the, math his claims would not add up.

 

[Gearbanger 101]

Who cares.....65mm T/B.....69mm T/B. Makes all of 1hp difference on a stock car and maybe double that on a modified car. If he’s such an expert on airflow, why didn’t he venturi and polish the inlet of the T/B to a mirror finish to increase flow velocity while he was at it?

If I were a person looking at buying a replacement stock throttle body, I might have considered this one before reading the add, but after reading this guys ridiculous "inflated" claims of flow and performance along with his inflated price after 5-minutes worth of work with a die grinder and a sanding cartridge.....it's becomes pretty obvious to me that he's talking out of his @$$ and dealings with him should be avoided based on that alone.

This guy is probably one of those back lot used car salesman by day.

 

[twogts4us]

The area of a circle is (pi(3.14) * radius * radius)
Then you have to subtract the area of the blade shaft, assuming stock is about 10mm (just guessing here).

So on a 69mm tb with a 10mm shaft, the area would be
(3.14 * 34.5 * 34.5) - (10*69) = 3047.3 square mm's

a 65mm tb with a shaft shaved down to 5mm would be
(3.14 * 32.5 * 32.5) - (5*65) = 2991.6 square mm's


a 65mm tb with a 10mm shaft would be
(3.14 * 32.5 * 32.5) - (5*65) = 2988.375 square mm's

This is assuming that you could shave the shaft down 50% the entire length of the shaft, but judging by the pic, he has not.
So, you can see if he had actually shown the, math his claims would not add up.

Thanks for the math lesson, bro (seriously!!!)

 

[hotmustang331]

LOL, the turbulance it creats would just take away the flow increase of the diameter and probably cause it to flow less than a STOCK TB. I would buy a stock one before that...even if that was free. It will hurt power. It can still only flow 65MM past the blade(+ the TAD more thats gained my maiking the blade thinner), so even if it was smoothed to where the transition to 69MM-65 was a nice gradual thing....it wouldnt help more than a 1/4 of a HP. and that would be purely from working the blade. I feel sorry for the guy who buys that.

 

[Dark Knight GT]

I some how feel I'm to blame for crap like this. I think back last year when I did that port and polish write up, people got the wrong idea when it comes to the throttle body. I don't "port" throttle bodies, I only polish the entry to a smooth mirror surface for some what better flow. I will also usually polish the backside and throttle blade if they need it.