Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

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Phizinza
Thomas Paine

(2 posts)

Registered:
09/28/2019 07:09PM

Main British Car:


A good straight 6 swap for a Spitfire?
Posted by: Phizinza
Date: September 29, 2019 03:32AM

Hi, just joined. I'm wondering what peoples thoughts are on what a good light weight straight 6 engine and manual 5sp transmission would be for a Spitfire, no more than 150hp or so. Something that would fit under the stock bonnet and have no or minimal effect to the transmission tunnel. I was thinking a 2.0l or 2.5l M52 engine from BMW? Would prefer a simple and reliable engine so maybe something from an older generation, but something popular so parts are easy to find.
Even toying with the idea of a VR5 for something a bit different.
Or would the Rover 3.9 be an easier fit? Would enjoy seeing some of your conversions!


mgb260
Jim Nichols
Sequim,WA
(2042 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: A good straight 6 swap for a Spitfire?
Posted by: mgb260
Date: September 29, 2019 02:55PM

Thomas, 200 Ford six.



[www.mgexp.com]



Edited 1 time(s). Last edit at 09/29/2019 02:56PM by mgb260.


tvrgeek
Scott Stubblefield
Hillsborough, NC
(16 posts)

Registered:
01/25/2019 11:53AM

Main British Car:
73 Stag TR 3.0

Re: A good straight 6 swap for a Spitfire?
Posted by: tvrgeek
Date: September 29, 2019 05:25PM

Tegler put a TR 2.0 with full MegaSquirt in one. It was a feature in GrassRoots a while back. Not going ot make the 145 HP I don't think.

Might look at Volvo.


88v8
Ivor Duarte
Gloucestershire UK
(758 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: A good straight 6 swap for a Spitfire?
Posted by: 88v8
Date: September 30, 2019 04:38AM

Have seen Spits and GT6s with the Triumph 2.5 six-pot, which of course is old-school and has good parts availability, but is rather heavy so not great for handling.

And currently available at 11,500 this well known UK car with Rover V8. The price may seem high, but for the work involved, it is not and the $ is strong. Even after converting it to left hand drive, you would be ahead.
[www.carandclassic.co.uk]

Spit V8 1.jpg

Spit v8.jpg

Finally, this Spit, with it's 1.5 four-pot, has some body enhancements which may or may not inspire you.
[www.ebay.co.uk]

Spit.jpg


40indianss
don foote

(68 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: A good straight 6 swap for a Spitfire?
Posted by: 40indianss
Date: September 30, 2019 10:58PM

The first pic looks nicely done except for the bug catcher on the carburetor. Something that would enhance the existing lines of the body would have been much more appropriate. The bug catchers really only look correct when attached to a 6-71 blower on a drag racing vehicle. IMHO


88v8
Ivor Duarte
Gloucestershire UK
(758 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: A good straight 6 swap for a Spitfire?
Posted by: 88v8
Date: October 11, 2019 04:12AM

Oddly enough, when this car was sold a year or so back, I recall the seller made the same comment, and he provided some Photoshop renderings of how the bug could be removed.
In wet old England, it's not so much the visuals that would bother me, as the rain getting in.
There's also the point that the ram effect potentially affects the mixture, so not a great idea for a road car.

Nice conversion though.

Ivor


Phizinza
Thomas Paine

(2 posts)

Registered:
09/28/2019 07:09PM

Main British Car:


Re: A good straight 6 swap for a Spitfire?
Posted by: Phizinza
Date: October 12, 2019 12:44AM

The Ford six seems like a pretty heavy motor for very little power.
I don't mind bonnet modifications if they look near enough factory, such as the GT6 bonnet but I'm not a fan of hoodscopes or massive buldges. Has a Rover V8 with EFI been fitted under a standard bonnet before?



mgb260
Jim Nichols
Sequim,WA
(2042 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: A good straight 6 swap for a Spitfire?
Posted by: mgb260
Date: October 12, 2019 08:42PM

Thomas, The 200 Ford six is light and has a low deck height and short stroke. Available aluminum head would make an easy 200HP.


thaniel
Thaniel Smith

(2 posts)

Registered:
05/23/2020 07:28AM

Main British Car:


Re: A good straight 6 swap for a Spitfire?
Posted by: thaniel
Date: May 23, 2020 07:39AM

A bmw straight 6 would take major modifications to fit. I have a GT6, which is similar. I was planning on a BMW 6cyl but after measuring it was obvious that to fit under the hood would require it to extend far into the passenger compartment.


spridget
bill green
Maine
(62 posts)

Registered:
03/22/2008 01:29PM

Main British Car:
3 1980 TR8, 1 TR7 2 Bugeye Sprite 1 MG midget TR8 3.5 and 5.0, Sprite 1098 and ?

Re: A good straight 6 swap for a Spitfire?
Posted by: spridget
Date: May 23, 2020 07:12PM

A Ford Zetec 2.0 DOHC 4 is a relatively easy swap, plenty of parts for the rear drive. It has been done so there is help and makes about 130 hp in stock form. Parts are available to pep it up, it is easy to find and not expensive. Plus it fits under the hood with no scoop.


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