Fordmods Logo

68mm Throttle body - RESULTS!!! 

 

Page 1 of 8 [ 117 posts ] Go to page 1, 2, 3, 4, 5 ... 8  Next

 
 Post subject: 68mm Throttle body - RESULTS!!!
Posted: Thu Nov 13, 2008 1:31 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1442

Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

I finally got around to getting my car put back on the dyno after getting my TB bored out.

on the standard 64mm throttle body i made 143 rwkw @ 4900 rpm
on the 68mm throttle body i made 152 rwkw @ 5400 rpm


power curve from 4900 rpm and below was exactly the same
torque curve from 4900 rpm and below was exactly the same

it was only after 4900 rpm that things changed....
i hope that puts alot of the debating about throttle body size on an NA6 car to sleep!

 

_________________

07 BF MKII XR6T
310rwkw @ 13psi - Tuned By CMS

Top
 Profile  
 
 
Posted: Thu Nov 13, 2008 2:03 pm 
Getting Side Ways
Offline

Posts: 1220

Joined: 11th Nov 2007

Ride: f6 rspec

Location: Sydney
NSW, Australia

so where do i get my hands on a 68mm t/b? a 9 kw difference is a very nice increase!
Top
 Profile  
 
 
Posted: Thu Nov 13, 2008 2:26 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 10829

Joined: 17th Apr 2005

Gallery: 34 images

Ride: BF MK11 XR 6 TURBO ZF 6spd

Power: 225 rwkw

Location: glenwood/sydney
NSW, Australia

remembering that without many other mods.. there are far more better things to do... the throttle body mod will have the most gain on an allready worked engine... -good result there vince...
Top
 Profile  
 
 
Posted: Thu Nov 13, 2008 3:54 pm 
Getting Side Ways
Offline

Age: 35

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

Can you feel any difference though?

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
Posted: Thu Nov 13, 2008 5:24 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 607

Joined: 15th Dec 2004

Gallery: 23 images

Ride: GLXR 6

Location: Perth
WA, Australia

Nice! *Adds TB to list*
Where can you get this done? Cost much?

 

_________________

Image

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 7:53 am 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1442

Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

well as i said there is no difference below 4900, instead of dying off it keeps on climbing till redline. you cant feel it in 1st or 2nd gear because the engine just revs way too quick to feel it, in third you can, but at that stage your doing about 130-150 clicks and its time to slow down! perfect for the 1/4 mile or dyno though.. no real difference on the street.


one other observation, there was no difference running the 3inch intake pipe compared to no intake and just an exposed throttle body..

 

_________________

07 BF MKII XR6T
310rwkw @ 13psi - Tuned By CMS

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:02 am 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 4304

Joined: 5th Nov 2004

Gallery: 9 images

Ride: EF Falcon XT-T

Location: Mornington Peninsula
VIC, Australia

FAST-XR wrote:
one other observation, there was no difference running the 3inch intake pipe compared to no intake and just an exposed throttle body..


Maybe not on a dyno where the bonnet is open and you're not dealing with an enclosed space filled with hot air :P
close the bonnet and get the car upto a decent temp and see the difference :P

nice result on the t/b!

 

_________________

FALCN6 - EF GLi Turbo, 20" Rims, Air Bag Suspension, Straight LPG, 225rwkw
DTHWGN - EA GL Wagon, LTD Interior, Satin Black, 5.0, Turbo
RACER - EF Futura , 5.0, 5 Speed
PROJECT - 83 Thunderbird, Lowered, 18" Billet Wheels
DAILY - BA Fairmont Ghia 5.4 3V

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:24 am 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1442

Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

good point, but i was coming more from the point of the intake pipe being a restriction on the engine

 

_________________

07 BF MKII XR6T
310rwkw @ 13psi - Tuned By CMS

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:39 am 
Getting Side Ways
Offline
User avatar

Age: 37

Posts: 11105

Joined: 15th Nov 2004

Ride: No Fords current

Location: Hobart
TAS, Australia

You've also got a variable in that the two set-ups were not tested on the same dyno on the same day.
Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:43 am 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1442

Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

the throttle bodys were compared months apart that is true, but the graphs were spot on from 4900 and below.

if anything, the run with the new TB was done on a hot engine, and the old run was on a cool engine...

the runs with the intake on and off were both done yesterday...

 

_________________

07 BF MKII XR6T
310rwkw @ 13psi - Tuned By CMS

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:47 am 
Getting Side Ways
Offline
User avatar

Age: 36

Posts: 525

Joined: 27th Jan 2007

Gallery: 3 images

Ride: AUII Ghia 75th LE, KF 1.8S 5spd

Location: S.E Burbz, Melbourne
VIC, Australia

very good result, as above what was it worth to do the TB?

cheers

 

_________________

THE Fairmont Ghia : 75th Anniversary LE
Current Mods - 2.5" Exhaust, Custom CAI, Built Gearbox( Mirror Polished Casing+Bellhousing,TCE 2500 custom convertor, Modified Valve Body), Detailed UnderCarriage, SQ Stereo Install = 136+rwkw
http://www.aufalcon.com.au/sikford

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 8:48 am 
Getting Side Ways
Offline

Age: 35

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

so how did you get it bored out and did you need a new butterfly ?

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 1:19 pm 
Getting Side Ways
Offline

Posts: 534

Joined: 14th Oct 2007

Gallery: 8 images

Location: newcastle
NSW, Australia

cheers for the info
i have bored out my tb with a dremel and 120 grit tubes,
you are pretty safe as long as you keep the butterfly firmly closed.
stick some blue tack in the valve aswell
i was suprised at the extra sound and responsivness
especially at the points you have describd
definate worthwhile mod
i also had noticable increase from matching surfaces of tb & bbm
and deburing,porting and 120/80 grit rough surfacing the top half of the bbm
Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 1:37 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 1442

Joined: 26th Apr 2006

Gallery: 6 images

Ride: 97 EL XR6

Power: 162 rwkw

Location: liverpool
NSW, Australia

sounds like you have polished the bore without increasing the diameter of the butterfly. i got a new butterfly and TB professionally machined out, didnt cost me too much because it was a mate of mine.

seems like there is a bit of interest in getting some made up, ill look into it and get a price for those that are interested, it would have to be on an exchange basis with your existing TB though


it takes about an hour to machine, plus material, machine cutters,etc, and there is a bit of fitment work to be done to get the new butterfly to fit into the existing shaft. id say about $150, but ill have to confirm this. that seems reasonable compared to the $300 ones that get sold on ebay. how does that sound?

 

_________________

07 BF MKII XR6T
310rwkw @ 13psi - Tuned By CMS

Top
 Profile  
 
 
Posted: Fri Nov 14, 2008 2:05 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 10829

Joined: 17th Apr 2005

Gallery: 34 images

Ride: BF MK11 XR 6 TURBO ZF 6spd

Power: 225 rwkw

Location: glenwood/sydney
NSW, Australia

FAST-XR wrote:
sounds like you have polished the bore without increasing the diameter of the butterfly. i got a new butterfly and TB professionally machined out, didnt cost me too much because it was a mate of mine.

seems like there is a bit of interest in getting some made up, ill look into it and get a price for those that are interested, it would have to be on an exchange basis with your existing TB though


it takes about an hour to machine, plus material, machine cutters,etc, and there is a bit of fitment work to be done to get the new butterfly to fit into the existing shaft. id say about $150, but ill have to confirm this. that seems reasonable compared to the $300 ones that get sold on ebay. how does that sound?
vince... $150 is very reasonable.. i see "big throttle body's on ebay at twice that price... -the beginings of another group buy perhaps??
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 8  [ 117 posts ]  Go to page 1, 2, 3, 4, 5 ... 8  Next

Who is online

Users browsing this forum: Google [Bot], Google Adsense [Bot] and 37 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Mar 28, 2024 8:41 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names