Best K-series for a rwd application? - MG-Rover.org Forums
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 33 (permalink) Old 24-12-2006, 19:34 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Best K-series for a rwd application?

I'm hoping to drop a K into my MG Midget next summer, my old 1275cc is burning oil quicker than it drinks petrol! What should I be looking for in the purchase of an engine? I want the VVC unit for more power, but I'm told by others if i want to be making a lot of power I'm best going for normal 1.8 and then using throttle bodies and an emerald ecu but then we're getting expensive...

I know what I need to do to the car to make it ready for the engine but havent a clue how to prepare an engine for this conversion having never attempted anything like this

Its a 1973 chrome bumper model if anyone's interested, I've nabbed some 4pot calipers and big disks from a racing midget which stop it well, althought the suspension will need coverting to telescopic shocks all round.

http://www.mgcars.org.uk/cgi-bin/gen...g/newdawn.html



Above is the dream MG Midget, V8 with AWD and looks so nice The guy who built is must love it.
eddybrown is offline  
Sponsored Links
Advertisement
 
post #2 of 33 (permalink) Old 24-12-2006, 19:38
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
The most powerful 1.8 non VVC is 135bhp. The VVC is 160 out of the box and easily made up to over 170 without changing the ECU or fitting throttle bodies.

You can run either engine on throttle bodies with an Emerald ECU. So no difference there.

The VVC head has larger valves etc so to make decent power you will need the VVC head regardless.

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #3 of 33 (permalink) Old 25-12-2006, 00:05 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Ok brilliant VVC it is then. I don't want to be going down the Emerald ECU route if possible, if I could get away with it i'd like to use the ECU out of the car the engine came from. What would be the best donor car for nabbing the engine and gubbins out of and then maybe sell the rest for parts?
eddybrown is offline  
 
post #4 of 33 (permalink) Old 25-12-2006, 00:21
Registered User
 
Join Date: Mar 2003
Car: Jaguar
Posts: 5,355
why not a kv6 unit perhaps?
Ice D is offline  
post #5 of 33 (permalink) Old 26-12-2006, 00:13 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Don't think a KV6 will fit without serious modifications like he did with the V8. The front end is a tubular frame to give more room in there.
eddybrown is offline  
post #6 of 33 (permalink) Old 26-12-2006, 10:09
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
MG ZR 160, MG TF 160 or MG F Trophy

One of those 3 really for the 160 engine.

Rover 200 Vi, Rover Coupe VVC, MGF VVC or Rover 25 GTi for the 145 version.

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #7 of 33 (permalink) Old 26-12-2006, 23:34 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Whats the difference between the 145 and the 160 in terms of what is added to make the 160? Can the 145 be modded to bring it inline with the 160 cheaply? I'm leaning towards the Vi, so I could borrow some bits from it for my 220Di. Cheers for the advise
eddybrown is offline  
post #8 of 33 (permalink) Old 27-12-2006, 05:09
Administrator
 
Chris T's Avatar
 
Join Date: Feb 2005
Location: Leicestershire
Car: MG TF 135 Platinum Silver, Skoda Roomster
Posts: 32,606
Garages
A lot of the gain is down to a better induction system that you will probably end up junking anyway.
Chris T is offline  
post #9 of 33 (permalink) Old 27-12-2006, 09:33
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
Its not difficult to get the 145 engine up to 160.

As Chris sys a lot is to do with the induction and exhaust. Both of which you will be doing custom. The 160 has a 52mm throttle body, a mems3 ecu and a slightly different set of pistons and valves.

The Vi will have the stronger double tang con rods though.

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #10 of 33 (permalink) Old 27-12-2006, 10:51 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Thanks thats confirmed what I was guessing. Hopefully I can get it working on the original ECU, otherwise I'm off to Emerald and get it fully sorted. Cheers for the help, I'll keep you guys posted nearer the time of conversion
eddybrown is offline  
post #11 of 33 (permalink) Old 27-12-2006, 10:57
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
As long as you have the original ECU AND the 5AS alarm unit and fobs then you will be able to get it all working together.

Hacking the loom apart to get it to fit the new chassis may be fun though.

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #12 of 33 (permalink) Old 27-12-2006, 20:35
Administrator
 
Chris T's Avatar
 
Join Date: Feb 2005
Location: Leicestershire
Car: MG TF 135 Platinum Silver, Skoda Roomster
Posts: 32,606
Garages
If you don't want the immobiliser and alarm then Avon can sell you an interface that will disable this.
Chris T is offline  
post #13 of 33 (permalink) Old 27-12-2006, 20:45
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
Better to have it than not though.

If you get a 98 Vi as the donor it is a CAT2 rated immobiliser.

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #14 of 33 (permalink) Old 01-01-2007, 15:00 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Well thats a bit of luck, I just bought a 98 Vi yesterday from ebay at a decent price. An alarm may be more trouble than its worth in the midget with the softtop not fitting like a modern convertible. My dad drove the Vi back and said it was brilliant fun so I can only imagine what it'll be like in a car weighing under 700kg's.
eddybrown is offline  
post #15 of 33 (permalink) Old 01-01-2007, 15:09
Stu
Administrator
 
Stu's Avatar
 
Join Date: Jul 2002
Location: Norfolk
Car: Merc E250 Convertible + Alfa Mito Turbo
Posts: 54,943
Garages
Send a message via MSN to Stu Send a message via Skype™ to Stu
Sounds good. Keep us up to date with the progress.

You need to start its own thread and keep it up to date with piccies etc.

Would be great to see.

Good luck

Stu

Get cash back on your Insurance and many other web purchases through Quidco
Stu is offline  
post #16 of 33 (permalink) Old 01-01-2007, 15:38
Administrator
 
Chris T's Avatar
 
Join Date: Feb 2005
Location: Leicestershire
Car: MG TF 135 Platinum Silver, Skoda Roomster
Posts: 32,606
Garages
Just dug out the August edition of Retro Cars, they feature a Midget with a VVC engine. It uses a Caterham flywheel and 52mm TB and was said to produce 170 BHP. He got the wiring diagram form a chap in New Zealand so it maybe worth asking places like Frontline if they know of any contact details and also if you haven’t already have a look in the archives of the MG BBS as there is a section on there that is dedicated to K-series engine transplants.
Chris T is offline  
post #17 of 33 (permalink) Old 04-01-2007, 01:29 Thread Starter
Registered User
 
Join Date: May 2006
Location: Peterborough
Car: MG Midget, Alfa Romeo GT & Rover 75 CDT Club FOR SALE!
Posts: 772
Send a message via MSN to eddybrown
Thanks I'll check out that BBS, I've got a copy of an old 04 edition of retro cars with a 190bhp K-midget using throttle boddies and an Emerald. They use the caterham bellhousing to join it up with a Ford Type 9 gearbox as it fits with only a bit of modification to the transmission tunnel. I'll keep you guys posted when I start the work probably after easter.

A short vid of a K-midget

Last edited by eddybrown; 04-01-2007 at 01:42.
eddybrown is offline  
post #18 of 33 (permalink) Old 05-01-2007, 10:45
Registered User
 
Join Date: Apr 2006
Location: N.Ireland
Car: MG
Posts: 1,029
Interesting project you have lined up Eddy. Good pointers above from some of the troops.

I had a 68 Mk II midget that I sold on as an unfinished project few years back. It had the standard engine and gearbox removed but never had the nerve to venture into the conversion.

Yes saw that 4WD midget before looks awesome.

I have the VVC in the F and thats where it is staying but considering buying something to tinker at.

Will look forward to any results.... Good Luck!
D.R. is offline  
post #19 of 33 (permalink) Old 07-01-2007, 12:55
Registered User
 
Join Date: Aug 2005
Location: North Scotland
Car: MG ZT MG TF Turbo Elise Frogeye Midget
Posts: 263
there is a midget with a madza rotory fitted in
you may have to google for it
the k has been fitted into the midget for years by a preston mg firm
elise is offline  
post #20 of 33 (permalink) Old 07-01-2007, 21:24
Registered User
 
Join Date: Feb 2006
Location: South
Car: Rover 416IXL, Saxo VTR
Posts: 9,971
Surely there is no contest between the non vvc 1.8 and the vvc 1.8? vvc is much faster isn't it?
Rover_King is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MG-Rover.org Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
Application to HCHDC Mark D MGF and MGTF (Sponsored by MGFnTFBITZ) 57 08-10-2003 16:14

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome