R75 1800 Non Turbo Engine into MGF VVC

Peterd1947 · 8th June 2021, 18:23

I have a 1998 MGF VVC that has a head problem and would like to know if I can use a R75 1800 non turbo engine by using the VVC units from the original engine. Will the non turbo unit fit directly into the MGF?

mbonwick · 8th June 2021, 18:28

The difference between the standard and VVC engines is all in the heads and valves - so in your case not worth doing as it doesn't fix your head problem!

Unless of course you want to remap the ECU and change it from a VVC to a 135 of course.

Peterd1947 · 8th June 2021, 18:42

Could I use the head from the 1800 with the valve components from the VVC. The crankcase assembly of the VVC is ok.

mbonwick · 8th June 2021, 18:48

No, VVC valves and ports are bigger and there are some other geometry differences too. Not to mention the different cam bearing sizes.

Peterd1947 · 8th June 2021, 18:54

Would the 1800 turbo be an option?

mbonwick · 8th June 2021, 18:58

No, that is mostly similar to the 1800 non-turbo head.

VVC heads are unique in the range - if yours needs replaced, the only option you've got if you want to retain the VVC is another VVC head.

FLYING BANANA · 8th June 2021, 20:51

MJSAUTOANDMARINE.CO.UK

Give the boss, Mike Stafford a bell. He has dropped a few 1800t’s into F/TF’s.

TourerSteve · 9th June 2021, 07:05

Quote:

Originally Posted by Peterd1947

I have a 1998 MGF VVC that has a head problem and would like to know if I can use a R75 1800 non turbo engine by using the VVC units from the original engine. Will the non turbo unit fit directly into the MGF?

As you have not given any description of the problems with your head , I am guessing that the head has been skimmed before and your's have problems around your fire ring area of your head .

As VVC heads are somewhat more difficult to obtain ,if the above is the case have you thought about an engineering solution to recover you head and keep your car original
Inserts can be fitted into the head which replace the damaged area around the fire ring area.
It may not be the answer to your problems but may be another avenue worth an enquiry

The company below carries out this work but most good machine shops should also capable of doing it

http://modusengineservices.co.uk/k-series/

Peterd1947 · 9th June 2021, 16:03

Thanks Steve but the Modus re-engineering cannot be done on VVC heads.

8th June 2021, 18:23	#1
Peterd1947 Regular poster MG ZT 260 Join Date: Oct 2016 Location: Mansfield Posts: 47 Thanks: 2 Thanked 5 Times in 5 Posts	R75 1800 Non Turbo Engine into MGF VVC I have a 1998 MGF VVC that has a head problem and would like to know if I can use a R75 1800 non turbo engine by using the VVC units from the original engine. Will the non turbo unit fit directly into the MGF?

8th June 2021, 20:51	#7
FLYING BANANA Moderator/Club Shop MG ZT 1.8t+. No.3 of 4 in Sunspot Yellow & Ford Fiesta in Black. Join Date: Aug 2010 Location: Rattler Farm Posts: 22,553 Thanks: 9,270 Thanked 15,645 Times in 6,806 Posts	MJSAUTOANDMARINE.CO.UK Give the boss, Mike Stafford a bell. He has dropped a few 1800t’s into F/TF’s. __________________ 233,250. onen hag oll

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

8th June 2021, 18:28	#2
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	The difference between the standard and VVC engines is all in the heads and valves - so in your case not worth doing as it doesn't fix your head problem! Unless of course you want to remap the ECU and change it from a VVC to a 135 of course.

8th June 2021, 18:42	#3
Peterd1947 Regular poster MG ZT 260 Join Date: Oct 2016 Location: Mansfield Posts: 47 Thanks: 2 Thanked 5 Times in 5 Posts	Could I use the head from the 1800 with the valve components from the VVC. The crankcase assembly of the VVC is ok.

8th June 2021, 18:48	#4
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	No, VVC valves and ports are bigger and there are some other geometry differences too. Not to mention the different cam bearing sizes.

8th June 2021, 18:54	#5
Peterd1947 Regular poster MG ZT 260 Join Date: Oct 2016 Location: Mansfield Posts: 47 Thanks: 2 Thanked 5 Times in 5 Posts	Would the 1800 turbo be an option?

8th June 2021, 18:58	#6
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	No, that is mostly similar to the 1800 non-turbo head. VVC heads are unique in the range - if yours needs replaced, the only option you've got if you want to retain the VVC is another VVC head.

9th June 2021, 16:03	#9
Peterd1947 Regular poster MG ZT 260 Join Date: Oct 2016 Location: Mansfield Posts: 47 Thanks: 2 Thanked 5 Times in 5 Posts	Thanks Steve but the Modus re-engineering cannot be done on VVC heads.