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 Post subject: Suzuki power in my 1970 Spitfire.
PostPosted: Tue Oct 03, 2017 5:22 pm 
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Joined: Tue Oct 03, 2017 4:45 pm
Posts: 5
Location: Norway
Yes, you read the subject right. I'm planing to use a Suzuki M engine in my 1970 Triumph Spitfire.

:?: Why Suzuki you want to ask yourself.


In Norway we have strict rules when it comes to cars. My car was sold new in a Germany i think, the imported to Norway and registered in 2002 with a 1200cc 56hp Opel engine. (orginal was it 68hp 1200 cc)

Starting a swap with a small engine of 1300cc and 83hp will not require major changes on brakes etc.
It will not look intimidating on the registration papers, and the insurance company will not require a shortage of insurance if the accident should be out.

The TR6 is based on Spitfire and was delivered with a 2l 6 cylinder engine of about 100hp. But were front heavy , and not optimal in any way.
 
I want a engine that delivers, for everyday driving, and that feels and responds quickly.
And in these days, living in the country in the world with the highest gasoline prices. Yes mpg is important.

:idea: I want to go back to basic, carburetor, and remove everything redundant.

The plan is to hold the car weight down. And preformance vs consumption.


For you that are not common with this type of car, here a photo of my car.


Attachments:
01_2044201412.jpg
01_2044201412.jpg [ 594.91 KiB | Viewed 29 times ]

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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Tue Oct 03, 2017 5:28 pm 
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Joined: Tue Oct 03, 2017 4:45 pm
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Location: Norway
I will try to make it a clean posts. :wink:

My first questions are;

M13A weight?
M16A weight?

Is there any outer differences between these engines?

If my goal is 100-110hp, what is stopping me from using a 300cc larger engine?

How does the suzuki vvt work, should I keep away from engine with it? Or can it be modified to work without a EUC?

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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Wed Oct 04, 2017 4:42 am 
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Joined: Mon Apr 11, 2005 1:57 pm
Posts: 574
Location: New Zealand
If your goal is 100hp the the twin cam G13B pits out exactly that.


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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Tue Oct 10, 2017 7:28 am 
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Joined: Fri Jan 07, 2005 9:44 am
Posts: 188
Hi,

I think using G13B engine with Suzuki Jimny gearbox will solve your problems.
Mk1 Gti came with mechanical dizzy with vacuum advance.
mk2 engine will deliver 105ps standard and using Yamaha R1 carbs, you may get 120bhp with mk1 dizzy. You will just need coil and wires connected then.
G13B is about 90Kg with injectors and all of the inlet manifold. So without inlet, you should be good for 85Kg.

I think fitting M engine will be difficult with VVC setup.
Drop me pm if you need mk1 dizzy, I have 2 spares.

Cheers
Atchi


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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Wed Oct 11, 2017 4:08 am 
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Joined: Tue Oct 03, 2017 4:45 pm
Posts: 5
Location: Norway
The G13B is not a easy engine to get hold on, and I you find one it is not a cheap engine in Norway anymore.

I think I read somewhere that the weigt of M13A was about 93kg, and orginal flywheel was 7kg.
And you could get lighted ones with about 4kg.
Thats gives me a shortblock with a weight about 90kg.

Orginal engine in the Spitfire is 123kg and 68hp.

Saving about 30kg in the front and at the same time add a 22hp extra wil help a lot on preformance.
Then change the leafspring in the rear to a composite spring will save me som kg there also.

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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Wed Oct 11, 2017 4:12 am 
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Joined: Tue Oct 03, 2017 4:45 pm
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Location: Norway
And here more pictures of the car;


Attachments:
IMG_3914.JPG
IMG_3914.JPG [ 108.9 KiB | Viewed 808 times ]
IMG_3910.JPG
IMG_3910.JPG [ 104.8 KiB | Viewed 810 times ]
IMG_3906.JPG
IMG_3906.JPG [ 108.25 KiB | Viewed 808 times ]

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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Thu Oct 19, 2017 1:22 am 
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Joined: Fri Jan 07, 2005 9:44 am
Posts: 188
Hi,

Can you get Subaru Justy or G13 Swift non Gti?
If you can we can help you by sending Gti conrods, head, crank shaft, cam cover and so on.
G13B engine is very good engine and last a long, long time.

Cheers
Atchi


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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Thu Oct 19, 2017 4:44 am 
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Joined: Tue Oct 03, 2017 4:45 pm
Posts: 5
Location: Norway
miniswift wrote:
Hi,

Can you get Subaru Justy or G13 Swift non Gti?
If you can we can help you by sending Gti conrods, head, crank shaft, cam cover and so on.
G13B engine is very good engine and last a long, long time.

Cheers
Atchi


i think the cost of the extra parts needed to build a G13B from a 8 valve engine will cost more than it gives back.

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 Post subject: Re: Suzuki power in my 1970 Spitfire.
PostPosted: Wed Oct 25, 2017 10:02 pm 
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Joined: Thu Jun 09, 2005 11:16 pm
Posts: 3229
Location: Perth WA
From a tunability perspective, the G13B is far simpler than adapting an m series.
Main journal diameters are different between m13 and m16 engines, in case you’d thought you could do a stroker conversion later.
Ofcourse, am stoked to hear you’ve opted for suzuki power, subscribed :)


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