What 70mm throttle bodies are you guys using? My application will be for street/strip so I'm looking for one that doesn't stick like my friend's BDL. Also need one that will bolt up to my Victor X for B16 head. Suggestions?

 

any throttlebody made for a honda application will BOLT up to a victor BUT you will need to open the victor up for a 70mm tb to match it.

ANYHOW im running an STR 70mm tb and love it

buddy of mine runs a blox 70mm with no issues

 

70mm BBK here... had it for years and a few of my friends have had them as well and none of us have ever had an issue.

 

Skunk2 70mm. Daily driven no problems.

 

We use BDL and never had a problem with them, maybe your boy just had a defect one.

 

I have a blackworks tb and like it.

 

STR if you can find them

 

anybody using omni power t/b?

 

I have an Omni 70mm on my skunk2 manifold for my gsr. Cant beat it for $100. The first one I bought had a sticking issue but when I contacted Phearable.net and told them the issue I was having, they sent me a replacement. Works great!

 

Does anyone have any data showing gains of a 70mm TB over a stock GSR TB?

 

prob not, such a small item nobody prob wasted the time... the 70mm cant hurt though if your trying to make 600+.

 

The reason why I ask is because some of the people making 700+ are just running the stock gsr TB still..

 

my rpm services 70mm TB sticks all the time... thought about changing to a stock itr throttle body...

 

Your maximum amount of flow is determined by the smallest opening through the intake track....for $99 you can get a 70mm omni power throttle body and its more then most people need.

 

How does having a 2.5" Outlet on your Turbo affect this?

 

does that mean having 2.5 inch piping to a 70mm throttle body give us a maximum amount of flow of 64mm. 2.5inches is basically equal to 64mm... i wonder if someone has a dyno comparison to justify this... makes since though...

if your running a 70mm throttle body is it pointless unless your running 2 3/4 charge piping because 2 3/4 is basically equal to 70mm?

if you have 3 inch charge piping is it pointless to bottleneck to a 70mm instead of a 76?

 

If anything, just port the stock unit out a tad.. I don't think it is worth while to buy a TB that will just be prone to sticking and I can save my $99 for something usefull

Allot of testing has been done in the evo world it seems, but not so much over here and I wish there was as I am building a honda right now.

 

I think the gains/losses arent even worth testing.

 

T4 6262, 2.5" hot side, 3" cold side - shooting for 500 - 550whp stock sleeve here, have an ITR TB on it now breaking it in all motor. May just work with that for now.

Will be doing 70mm TB, ported head, skunk2 pro 1/tuner 2 over the next few months so I will post results if I can get a back to back with the TB.

pretty much just mirroring this setup minus the sleeved block: https://honda-tech.com/forums/forced-induction-16/dyno-comparison-skunk2-pro-1s-vs-ctr-camshafts-2520138/

 

Which of these recommendations retain all the stock vacuum lines and iacv, etc? I notice the victor X TB abandons these which is why I opted not to buy it when I got the manifold.

 

they are there....they are just moved.

 

moved to?

This is misleading then: http://www.edelbrock.com/sportcompac.../tb_vict.shtml

"We eliminated the idle air motor mount and all unnecessary vacuum tubes, making these throttle bodies especially well suited for racing applications"

 

throttlebody wont nessesarily give you gains/losses. its for better throttle responce. the gains as so minimal. You only need a larger TB when running huge turbos that require larger than 2.5" charge piping and are making north off 800whp

 

omni. cant beat it for the money.

 

Running Omni Power 70mm. works great for me.