VVC Inlet Manifold for 1.8T

Abott10 · 12th May 2017, 08:44

I have one of these VVC Inlet Manifolds and as some folks fit these to their 1.8 K-Series Turbocharged versions of these cars, I'm now wondering what advantages there are. Apart from being metal with less chance of Manifold Gasket leak issues.

Welcome any feedback and opinions on fitting a VVC Manifold.

T-Cut · 12th May 2017, 09:04

That's about it as far as I'm aware.

TC

suzublu · 12th May 2017, 09:25

It could well be the "Placebo" effect, but after fitting mine, I found throttle response a bit crisper

The plenum of the VVC inlet manifold is a lot larger than the OE, so a bit more air can get in

Other than that, mainly eliminates the leak from there

victorgte · 12th May 2017, 09:57

Mine was fitted 2 years ago and no issues.
The original was ok but the garage in Gloucester that fitted it were not impressed with its condition and said it was a good decision to change it.
Can't say I remember any benefits in performance. The biggest change in the engine was after I had valves and hydraulic lifters renewed. The difference really was noticeable and still is today. 1.8T engine.

minimutly · 12th May 2017, 17:28

Isn't there a slight difference in dameter of the runners/ports? I seem to recall the std k series is a little smaller than the vvc, si there will be a step - no issue if you never trouble the upper end of the rev counter I'm sure, but bound to reduce airflow at high revs.
All with the caveat that I've never actually checked the difference..
Oh, and the might be a clearance issue with the injectors or injector rail preventing it seating properly?.

Sheraton · 12th May 2017, 23:43

I agree with Suzublu

- throttle response does seem better - and it does appear to have a larger volume plenum, i'm not sure of the pro's con's r.e plenum volume - it seems to work well with a K&N panel filter tho and the combo makes a Good sound

and i think it looks so much better it's worth doing on this basis alone

Paul.

chiron_myth · 13th May 2017, 04:52

Looks alone must give it en extra 10 HP

Like the others, I found the throttle response a little crisper. The engine itself also felt and sounded a lot smoother. Therefore no real power advantage, but extra smoothness felt like an extra 5-10 HP.

Sheraton · 13th May 2017, 10:39

the exhaust wrap is "Titanium" heat wrap - i'm guessing it's NOT Titanium tho, just fibreglass

- been on there a wee while now with no issues

can't remember which seller i purchased from, bought on ebay tho

http://www.ebay.co.uk/itm/10M-TITANI...25.m3641.l6368

A VVC head on a 75

would this work ? i.e would the VVC function ?
that would be Cool

do you have a support bracket for either manifold ? i know some have fitted without the bracket - i'd consider the bracket essential for this mod

Paul.

suzublu · 13th May 2017, 10:52

Alikris · 14th May 2017, 12:43

General consensus on the Web is that a VVC inlet manifold is designed to work with the VVC engine mods. Fitting a VVC Manifold does very little without the VVC engine mods. Apparently.

Ali.

12th May 2017, 08:44	#1
Abott10 * Join Date: Apr 2014 Posts: 227 Thanks: 1,275 Thanked 1,917 Times in 1,328 Posts	VVC Inlet Manifold for 1.8T I have one of these VVC Inlet Manifolds and as some folks fit these to their 1.8 K-Series Turbocharged versions of these cars, I'm now wondering what advantages there are. Apart from being metal with less chance of Manifold Gasket leak issues. Welcome any feedback and opinions on fitting a VVC Manifold.

12th May 2017, 09:57	#4
victorgte I really should get out more....... MGTF, MGZT, Range Rover Join Date: Sep 2013 Location: Cheltenham Posts: 2,803 Thanks: 395 Thanked 633 Times in 446 Posts	Mine was fitted 2 years ago and no issues. The original was ok but the garage in Gloucester that fitted it were not impressed with its condition and said it was a good decision to change it. Can't say I remember any benefits in performance. The biggest change in the engine was after I had valves and hydraulic lifters renewed. The difference really was noticeable and still is today. 1.8T engine. __________________ MG TF 135, MG ZT, Range Rover P38

13th May 2017, 04:52	#7
chiron_myth Loves to post Rover 75 Tourer Join Date: Jan 2015 Location: Shifnal Posts: 422 Thanks: 57 Thanked 80 Times in 66 Posts	Looks alone must give it en extra 10 HP Like the others, I found the throttle response a little crisper. The engine itself also felt and sounded a lot smoother. Therefore no real power advantage, but extra smoothness felt like an extra 5-10 HP. __________________ Done so far... loads. Special thanks to Arctic, Lord_Skyrunner John_H, Holland314, JamieWelch and Drewski for their help so far. Left to do... loads!!!

14th May 2017, 12:43	#10
Alikris Gets stuck in Rover 75 1.8 Connie SE Join Date: Dec 2015 Location: Vindolanda, Northumberland Posts: 539 Thanks: 111 Thanked 153 Times in 105 Posts	General consensus on the Web is that a VVC inlet manifold is designed to work with the VVC engine mods. Fitting a VVC Manifold does very little without the VVC engine mods. Apparently. Ali. __________________ Vicky: born Thursday, 15th April 2004 @ 08:20:55. The 95,246th 75 to be produced, and the 4,783rd 75 in British Racing Green Pearlescent.

12th May 2017, 09:04	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	That's about it as far as I'm aware. TC

12th May 2017, 09:25	#3
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,920 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	It could well be the "Placebo" effect, but after fitting mine, I found throttle response a bit crisper The plenum of the VVC inlet manifold is a lot larger than the OE, so a bit more air can get in Other than that, mainly eliminates the leak from there

12th May 2017, 17:28	#5
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Isn't there a slight difference in dameter of the runners/ports? I seem to recall the std k series is a little smaller than the vvc, si there will be a step - no issue if you never trouble the upper end of the rev counter I'm sure, but bound to reduce airflow at high revs. All with the caveat that I've never actually checked the difference.. Oh, and the might be a clearance issue with the injectors or injector rail preventing it seating properly?.

12th May 2017, 23:43	#6
Sheraton Posted a thing or two Rover 75 1.8t Join Date: Oct 2015 Location: Edinburgh Posts: 1,377 Thanks: 384 Thanked 409 Times in 267 Posts	I agree with Suzublu - throttle response does seem better - and it does appear to have a larger volume plenum, i'm not sure of the pro's con's r.e plenum volume - it seems to work well with a K&N panel filter tho and the combo makes a Good sound and i think it looks so much better it's worth doing on this basis alone Paul.

13th May 2017, 10:39	#8
Sheraton Posted a thing or two Rover 75 1.8t Join Date: Oct 2015 Location: Edinburgh Posts: 1,377 Thanks: 384 Thanked 409 Times in 267 Posts	the exhaust wrap is "Titanium" heat wrap - i'm guessing it's NOT Titanium tho, just fibreglass - been on there a wee while now with no issues can't remember which seller i purchased from, bought on ebay tho http://www.ebay.co.uk/itm/10M-TITANI...25.m3641.l6368 A VVC head on a 75 would this work ? i.e would the VVC function ? that would be Cool do you have a support bracket for either manifold ? i know some have fitted without the bracket - i'd consider the bracket essential for this mod Paul.

13th May 2017, 10:52	#9
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,920 Thanks: 65 Thanked 7,142 Times in 4,642 Posts