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I want to give Zuesskroph a Hugh THANKS for driving over 2 Hrs to let me test the larger TB on his Focus

I am shocked to reply that the larger TB made no gains +/- 2 HP

His Focus had a CAT Back already and the best run with my 5 min thrown together base tune , larger TB , and my intake pipe was 171 HP , also tried it with the injected tune and it was very close to the same 4hp less

His Cat Back , Injected tune , FS Werks intake , stock TB was 168

It was very strange , with the larger TB , and either intake on it and load the tune and neither tune shows hardly any gains

I wish I had 3-4 days to play to play with the tuning and adjust the cams and a few other thing and see if more air wasnt being used because of how the cams are controlled for all parts being stock

I not giving up just out of time to do more now

Tom
Well thanks for testing it though!
 
Ive seen dyno gains with larger throttle bodies but honestly by that point the car had complete breathing mods...cams, header, intake manifold as well as intake, exhaust etc....I think Tom just needs more time to test and possibly test on a car with more boltons
 
Did you have any time to roadtest the car with the bigger tb and toms intake..just wondering if you noticed improved throttle response, powerband improvements?
 
You'll love the header
 
I asked you in the other thread Tom, but any chance you'd be willing to make some more of these 67mm TB's? that would be the biggest one available for our cars that is proven to fit.
 
true, if yours is a direct bolt on with no modification needed it would probably be the better option though.
 
I bore out the stock 2013-2016 Ford Focus TB to 67mm so it is a direct bolt on , plug and play

Tom
Exactly, which is why yours would be ideal since there would be no modification to make it fit vs the V6 Mustang which is going to take some work to make it fit. which is why you should make these and sell them!
 
Discussion starter · #53 · (Edited)
We will have to see what he has to do to make it work , there is hundreds of calculations that go into making a DBW work properly and if the PCM doesnt see it doing what its telling it to do it could go to limp mode or go WOT for no reason

The TB is used for one of the main TQ reductions , the gearing has to open and close the TB at the same speed and position , meaning *** and WOT % have to be set properly among many , many other things , this is the part I dont think they understand
*** = Wide open Peddle
WOT = Wide open Throttle

Can it mechanically be made to bolt on and connect yes I know it can its been done already , can it be calibrated through the PCM / Computer software to safely work that I dont know and not willing to spend the time on and if some one tries that doesnt have a LOT of experience with the DBW they they better have good liability Insurance

Tom
 
Well you said before that the stock TB that you bored out to 67mm have been installed on a couple cars and are working correct? and are direct bolt on?
 
Discussion starter · #55 ·
Well you said before that the stock TB that you bored out to 67mm have been installed on a couple cars and are working correct? and are direct bolt on?
I dont know any other way to say it other then yes , Im not sure why you find it cannot be done and keep asking ?

One is the TB off the car made to 67mm and reinstalled

I am going to wait to see what comes of the 3.5 v6 being worked on but thinking of a price in the 250.00 - 275.00 range Exchange + shipping , would be right about 300.00 with shipping

Tom
 
Sorry for the confusion.

That price seems reasonable to me. Keep us updated. Looking forward to it.

Sent from my SM-G920T using Tapatalk
 
Image


You can see how much bigger the TP is now at 67mm, The silver plate is the stock plate over the larger red 67mm plate

Tom
OK..been staring at this pic, how did you make it bigger, what's the secret, I'm not seeing it...lol
 
Wait a sec.... did he grind down the mounting flange surface??
 
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