Pages: [1] 2
Author Topic: Throttle body sizing  (Read 11937 times)
RaraK
Hero Member
*****

Karma: +58/-2
Offline Offline

Posts: 539


« on: July 09, 2012, 05:52:47 AM »

what are some of the sizes of Throttle bodies.  I think it would be nice to compile a list of easily had compatible DBW throttle bodies for the platform.

My measurements are the ID of the TB Plate surface area, or the plate size.

1.8T DBW = 57mm ID
S4 = ?
RS4 = ?
Huh
Logged
rob.mwpropane
Sr. Member
****

Karma: +32/-0
Offline Offline

Posts: 370


WWW
« Reply #1 on: July 09, 2012, 04:18:50 PM »

I have a "A" Box throttle body laying up at the shop I'll measure tomorrow. I'm pretty sure it's 70mm though.
Logged

This has nothing to do with cars but you can see my glorifying job at,

www.MWPropane.com
RaraK
Hero Member
*****

Karma: +58/-2
Offline Offline

Posts: 539


« Reply #2 on: July 09, 2012, 07:04:19 PM »

Thanks Smiley  it would be nice to have a compatibility list of TB's
Logged
nubtuner
Newbie
*

Karma: +0/-0
Offline Offline

Posts: 7


« Reply #3 on: July 09, 2012, 07:07:32 PM »

Rs4 is a 83mm. 85 and 90mm mafs are also popular
Logged
ejg3855
Full Member
***

Karma: +6/-0
Offline Offline

Posts: 123


« Reply #4 on: July 11, 2012, 09:30:10 AM »

80mm Hemi Throttle bodies are pretty common on 1.8T
Logged
marcello7x
Full Member
***

Karma: +1/-0
Offline Offline

Posts: 126


« Reply #5 on: July 11, 2012, 12:26:32 PM »

Never looked into tb sizing before. But a quick search lead me to a thread of dyno figures on a 1.8t with a veriety of sizes. Are these measurents inner or outer diameter?
Logged
rob.mwpropane
Sr. Member
****

Karma: +32/-0
Offline Offline

Posts: 370


WWW
« Reply #6 on: July 11, 2012, 07:51:11 PM »

I feel like a little bit of an ass. I totally forgot about this today, I have set an alarm to remind me. My apologies.
Logged

This has nothing to do with cars but you can see my glorifying job at,

www.MWPropane.com
jibberjive
Hero Member
*****

Karma: +23/-2
Offline Offline

Posts: 536


« Reply #7 on: July 11, 2012, 08:55:29 PM »

B5 S4 = 65mm
B5 RS4, VW W8 = 75mm
VW R32 = 75mm
Some Audi V8 A8's = 75mm
Dodge Hemi = 80mm

Inside diameters.
« Last Edit: July 11, 2012, 08:58:26 PM by jibberjive » Logged
RaraK
Hero Member
*****

Karma: +58/-2
Offline Offline

Posts: 539


« Reply #8 on: July 11, 2012, 09:06:27 PM »

FTW thanks for the info. 

Wanna discuss tuning of these Next Wink
Logged
jibberjive
Hero Member
*****

Karma: +23/-2
Offline Offline

Posts: 536


« Reply #9 on: July 12, 2012, 12:38:49 AM »

I look forward to the discussion and have a couple of thoughts about a some things I've stumbled on when studying. I haven't done any experimenting personally yet, but I've got 2 Hemi TB's on my floor right now Smiley
Logged
rob.mwpropane
Sr. Member
****

Karma: +32/-0
Offline Offline

Posts: 370


WWW
« Reply #10 on: July 12, 2012, 06:49:08 AM »

The measurement itself was a tad deceiving. The inlet on an A box tb was 70mm, while the plate itself was more like 67mm. Who would of known. Now wonder measurements all over the internet are different.
Logged

This has nothing to do with cars but you can see my glorifying job at,

www.MWPropane.com
marcello7x
Full Member
***

Karma: +1/-0
Offline Offline

Posts: 126


« Reply #11 on: July 18, 2012, 05:59:50 AM »

I have a 2.8l v6 passat tb in my trunk, i'll measure that and let you guys know.

Logged
marcello7x
Full Member
***

Karma: +1/-0
Offline Offline

Posts: 126


« Reply #12 on: July 18, 2012, 06:46:01 AM »

Part number 078 133 062 B, from 2.8l passat is the same as an S4 throttle body except for the coolant lines i believe.

S4 tb part number is 078 133 062 for reference.

If anyone could point me in the direction of maps that would need some tweaking, i'd be thankful!
Logged
nokiafix
Full Member
***

Karma: +19/-2
Offline Offline

Posts: 124


« Reply #13 on: November 06, 2012, 09:07:35 AM »

FTW thanks for the info. 

Wanna discuss tuning of these Next Wink

What was the out come of this?

I have a 1.8T here running a R32 TB, it seems fine under load and driving, its got a nicer linear response.  The issue it after going from WOT the rpms seem the hover for a second or two.  I will have a play tomorrow to see what I can find.

Nick
Logged
RaraK
Hero Member
*****

Karma: +58/-2
Offline Offline

Posts: 539


« Reply #14 on: November 06, 2012, 09:49:19 AM »

i just adjusted airflow over throttle maps

I dont have map names off hand hard to remember 100's of maps Tongue 
Logged
Pages: [1] 2
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.068 seconds with 17 queries. (Pretty URLs adds 0s, 0q)