Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 18th March 2007, 23:12   #1
mantianak
I really should get out more.......
 
ZT 190+ Saloon

Join Date: Nov 2006
Location: Poole
Posts: 2,413
Thanks: 6
Thanked 22 Times in 21 Posts
Default Throttle body intake size?

To save me doing the minor task of looking does anybody know the size of the air intake body on the KV6?

I've got a breather separate to an induction kit but it's very loud! I was looking at something like this...

http://cgi.ebay.co.uk/ws/eBayISAPI.d...4123&rd=1&rd=1

A tube could supply air to the breather and should reduce the noise. But I want to know the step-up/down size before I buy.
mantianak is offline   Reply With Quote
Old 19th March 2007, 20:32   #2
Simon
Banned
 
-

Join Date: Nov 2006
Location: -
Posts: 10,318
Thanks: 0
Thanked 4 Times in 3 Posts
Default

Are we talking about the size of the throttle body itself or for the breather tube on top of said throttle body?
Simon is offline   Reply With Quote
Old 19th March 2007, 20:50   #3
mantianak
I really should get out more.......
 
ZT 190+ Saloon

Join Date: Nov 2006
Location: Poole
Posts: 2,413
Thanks: 6
Thanked 22 Times in 21 Posts
Default

The big air intake bitty where the air filter attaches to the metal body, not the rubber bit or the breather on top. From memory I think it's about 70mm diameter. Not sure tho.
mantianak is offline   Reply With Quote
Old 19th March 2007, 20:58   #4
Simon
Banned
 
-

Join Date: Nov 2006
Location: -
Posts: 10,318
Thanks: 0
Thanked 4 Times in 3 Posts
Default

70mm does sound about right from what I recall too... Don't quote me on it just yet though, I'm still checking various sources for confirmation....
Simon is offline   Reply With Quote
Old 19th March 2007, 21:09   #5
Simon
Banned
 
-

Join Date: Nov 2006
Location: -
Posts: 10,318
Thanks: 0
Thanked 4 Times in 3 Posts
Default

After much searching the conclusion seems to be this:

70mm throttle body on the ZT160 and Rover 75 (2.5KV6, not sure about the 2.0KV6)

80mm throttle body exlcusive to the ZT190.


If anyone knows any different then I do, of course, oblidge accordingly.
Simon is offline   Reply With Quote
Old 19th March 2007, 22:58   #6
mantianak
I really should get out more.......
 
ZT 190+ Saloon

Join Date: Nov 2006
Location: Poole
Posts: 2,413
Thanks: 6
Thanked 22 Times in 21 Posts
Default

Great stuff.
I'm now thinking of finding a Y-pipe to have 2 filters fitted. There's enough room... just.

Problem is I can't seem to find the right shape of pipe. I'm thinking of adapting a Mitsubishi GTO intake pipe, although I'm having difficultly finding out the sizes of the pipe. No point in using it if their too thin.
mantianak is offline   Reply With Quote
Old 30th March 2007, 02:37   #7
Countach
Avid contributor
 
MG ZT-T 190

Join Date: Dec 2006
Location: Dorridge, Solihull
Posts: 171
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by Simon D View Post
After much searching the conclusion seems to be this:

70mm throttle body on the ZT160 and Rover 75 (2.5KV6, not sure about the 2.0KV6)

80mm throttle body exlcusive to the ZT190.


If anyone knows any different then I do, of course, oblidge accordingly.
Not sure of the throttlebody size, but the hose on my 190 has an ID of 73mm, apparently the Zs180 has a 70mm ID.......
Its causing a nuisance as I try and fit my K&N!! (you can't get a 73-70mm reducer)
Countach is offline   Reply With Quote
Old 30th March 2007, 07:41   #8
MartinW
Newbie
 
MG TF LE500

Join Date: Nov 2006
Location: Chester
Posts: 2
Thanks: 0
Thanked 2 Times in 2 Posts
Default

I think the t/body is the same size on all, but the difference of 10mm is to do with the hose diametre going to the air inlet filter housing.

I used a piper-x cone (<£90) which gives a suitable noise, not too loud, and it is the type for the ZS 180 but adapted to fit the ZT 160 inlet, which should be similar to the 190. The rubber adaptor from the t/b to the filter housing is the same on the 3 V6 ZTs but differs on the ZS because of a different filter box.
MartinW is offline   Reply With Quote
Old 21st January 2018, 00:07   #9
Mgaz
Gets stuck in
 
MG ZT190, MG ZS TD, MGF VVC, R200 TD bubble, Austin A35

Join Date: May 2017
Location: shrewsbury
Posts: 648
Thanks: 530
Thanked 82 Times in 56 Posts
Default

https://m.ebay.co.uk/itm/Honda-S2000...oAAOSwTf9ZOVlN

Use this.. It's 80mm ID so it might even fit on to the end of your rubber pipe.

It's from a Honda S2000. It's a popular filter on the Audi forums. You get nice induction sounds with the benefits of proper OEM filtration. It's a Bargain too!

The Audi boys have recorded an increase of airflow on their turbo cars. No idea about an NA engine though. But for the price it's not going to brake the bank giving it a go.

Got one on the R200 TD. Really let's you hear the turbo. Also seems to run more smoothly now too!

Not too loud either!

Last edited by Mgaz; 21st January 2018 at 00:12..
Mgaz is offline   Reply With Quote
Old 9th July 2020, 22:38   #10
maxi_crawf
Posted a thing or two
 
maxi_crawf's Avatar
 
R75 Saloon Conn CDT SE, MG ZT190+

Join Date: Nov 2006
Location: Kingston-upon-Hull
Posts: 1,960
Thanks: 823
Thanked 426 Times in 274 Posts
Default

Holy thread revival!

So has anyone found out for certain about the throttle body internal "bore diameter"?

I ask because I am going to retro fit traction control to my 190 (with the aid of Trikey) I have the bits I need to do the job except that the replacement throttle body is originally from a Rover V6 and I was always under the impression that the 190 has a larger throttle body, however on comparing the one on my car to the "replacement" they are the same apart from obviously the additional TC butterfly valve in front of the throttle valve and that mine has the red plastic insert to improve throttle response not the white one, has the confusion come from the different shannon tube diameters rather than the throttle body?
If this is the case then really all I need to do is swap over the red insert and cable quadrant to the 75 throttle and there will be no need to find a rare 190 body with TC because it would be the same thing
maxi_crawf is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 06:37.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd