Hey I just thought I'd let the 3.4 crowd know that a company in Toronto called RSM racing has a 62mm throttle body for our cars stock is 52mm. I just had it put on my car last week and the throttle response is a noticeable improvement I just thought maybe some of you might be interested as well

 

how much did that cost?

 

and a website link, I am lazy

 

It cost $300.00 CAnadian and I think the site is RSMracing.com
the Fellas name is Nelson

 

i thought you said that going to a larger TB wasnt worth it?

get your stories straight man.

 

i said that going to an LT1 TB wasnt a good idea on most 3.4L's
a 62mm TB isnt that big of a change

not taking into account the shaft that holds the butterfly in the TB and the TB butterfly the LT1 TB(48mm) has 3619mm^2 , the stock 3.4L TB has 2132mm^2, and a 62 mm TB will have 3091mm^2 of an area which the air needs to flow thru to in the TB.

959 mm^2 is not that big of a difference compared to 1487 mm^2. it is still to large for me to put on on my car. but does it hurt to ask questions the TB i have on my car flows more than a stock TB, so dont go around telling me to get my stories straight , i know how i feel on the TB subject, im sorry if you only know 1/2 of my story

BTW: try to not get this thread locked

 

edit:

**** everything i just said...

ok man wtf is going on.

i just took a look at your homepage, and i quote:

i took that crap rite offa your homepage. wtf is going on. you just trying to look big? nothing you have said up till now makes any sense, all you did was give out diameter #'s and that means ****.

put out an explanation as to why the lt1 wont work on the stock 3.4. and dont say "it just wont" or "it wont cause x isnt the same as y". tell me. with all your engineering knowledge, why more more air into a smaller area wont help. granted that the engine will only pull as much air in as it needs, but do you know how much air the engine needs to run at peak efficiency? how bout this for a homework assignment, figure out the CI of the 3.4L then figure the airflow efficiency of it.

then see if the LT1 tb wouldnt be like the perfect thing to toss on there. just...see if im right. if i am ill be polite about it -- if im wrong and you can explain it better than "im just right" or "its just a bad idea" -- then ill admit it.

but until then, imma be an *******.

<waiting for better proof than - "just cause">

-R

 

its mm squared... I think

 

mm squared mm^2 , same thing

R : i updated my site, i hope that you like it BTW: a 3.4L engine is approx 207 CI

and maybe there are some 3.4L's that pull in as much air as a 350, but not many

 

stock 3.4 tb is 52mm


throttlebody flowchart:
http://members.aol.com/tcpiplink/docs/tbflowchart.html


and what to do with some of those #'s
quote:
--------------------------------------------------------------------------------
"TB Calculations (by Chris Williams)

For every square inch of butterfly, you will flow 140 CFM.
To calculate the air flow for a 2" butterfly, you need to calculate the area first.
Area = pi X radius squared. So, 1/2 of 2" is 1 inch, squared is still 1, times pi (3.14) = 3.14 square inches of butterfly area.
This means that it will flow enough air for approximately 440 CFM, or 314 horsepower.

62mm=2.44" = 3.14149x(1.22)^2=4.67sq/inx140=653

65mm=2.56" 5.15sq/in = 720cfm = 515hp
62mm=2.44" 4.67sq/in = 653cfm = 467hp
56mm=2.20" = 3.8sq/in = 532cfm = 380hp
52mm=2.05" = 3.3sq/in = 462cfm = 330hp "


--------------------------------------------------------------------------------

 

excelent work there jeremy

 

well..you tried, and failed..and your wrong. the 3.4L engine is actually 204ci. and its not really 3.4L, its 3350. GM Rounds up the to get the 3.4L. dont believe me? lets do a little math.

((bore/2)^2)(3.14)(stroke)(cyls) = CI
or.. ((3.623/2)^2)(3.14)(3.31)(6) = CI

lets do a little math..
(3.623 / 2) = 1.8115
(1.8115^2) = 3.28153225
(3.28153225)(3.14159) = 10.3092289012775
(10.3092289012775)(3.31) = 34.123547663228525
(34.123547663228525)(6) = 204.74128597937115
or if you sit there and round off all the **** (just wanted to show you that im being thorough) it comes to 204.7. little off of that 207 ci mark..and that translates into 3.35L, not 3.4.

you can try to refigure it anyway you want. it still comes to 204.7 cubic inches. did you ever figure out how much airflow the engine actually needs? no. you just assume it doesnt need that much. im still waiting for an answer. at the moment you are still BS. full of it too.

ive figured out what i needed to know already. im not telling you the answer tho, you'll have to figure it out on your own. cause yur a tool.

you are also a great kissass when you wanna be.

p.s.: just fyi so you know im not full of it like you are - i wont tell you how i got here, your superior mind can figure it out for yourself, but according to that chart, anything above a 56mm single bore tb is too much for the stock 3.4 - and also just so ya know, comparing with that chart, the LT1 TB flows (48mm dual bore) 635cfm. less than the 62mm tb on that chart that wolf dug up.

 

i just dont think people understand that the engine is just an air pump. it will suck in as much air as it can, and the more air in a cyllinder, the more power. but the thign is that if you make a decently larger medium for the air to be pulled through, it iwll only allow the air to "breath easier". this is the theory for making power in an internal cumbustion engine. look at these examples, head/intake porting, exhaust, headers, high flow cat, cai's, cam's, larger valves, ect... these things all make the engine "pump more air in and out. so is this a "craptacular" that is never going to end? is it the end of the v6 fbody community if it is never solved??? has anyone even remembered to check the cfm of their air filter (cant forget that, but i truly believe that it has been overlooked this whole damn time)???? just sit down, relax, and look at the ic engine and how it makes power. you will all understand why a larger tb will ALLOW the engine to make MORE power.

 

Ive already put my 2 cents in this.


for a stock 3.4 yes, not necessary, but we are talking MODDED motors, yes it is badly needed, don't wanna run vaccum at wOT


lol

 

ok R , you just said
and as jeremy has shown us the 56mm single bore TB flows 532 cfm

but you also say that the LT1 TB is good..... and the LT1 TB flows 635 cfm

so you are saying that 532 cfm is too much but 635 cfm is good?

is that what you are saying?

and yes you are right about the CI's of the engine. do 2.3 cubic inches really make that big of a difference? (maybe they do and i just dont realize it)

i will figure the airflow of the engine tonight if you really want me to

if im a tool can i please be a hacksaw?


Tiago : no me and R are discussing the stock 3.4L
on modded motors i agree that the stock 3.4L TB is not sufficient i dont even have the stock TB on my car