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2.0L 8v upgrade advice required


DJW

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I’ve decided to upgrade my 1600vx and have obtained a 2.0L 8v SRI engine to transplant. The exhaust configuration is the same however the inlet ports carb side are different. I have got hold of a replacement manifold from tweeks, however, it does not rise as high as the original Caterham part. As a result, when fitted, I do not have sufficient clearance for my existing bonnet to fit back on. (the bottom of the webber cover fouls the ribbed bottom edge of the bonnet by approx. 10mm) As far as I can see I have a few possible option:

 

1. Try and find a replacement compatible manifold. Does one exist?

2. Fit smaller DCOE/ webber carb covers and enclose under a new bonnet. If I did this would I get sufficient airflow into the carbs?

3. Buy a new bonnet and make a new cut out- will the cut edge be robust enough? Would it look like a home made bodge?

 

Any advice or suggestions would be much appreciated

 

Thanks DJW

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If you are looking for 130 to 140 bhp I have had my 1.6 VX modified (cost under 1k)

and had it rolling roaded at 137 bhp and 135 lbs/ft of torque and still have a standard looking engine. No probs with carbs or exhaust or anything else for that matter. If you want details I will forward them to you.

 

James.

 

 

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Details are: Blydenstein Head Tel. 01763 272866 talk to Bill he's a great bloke and knows everything there is to know about the VX.

Kent cam Ast 15 & vernier wheel to go with it and also followers. Bill is also up to speed on this.

Other parts. Cam belt vauxhall part number 9128725 £19. 79

Cam cover gasket part number 90412303 £5.00

Cam ring seal part number 90280464 £16.30

Cam ring seal part number 90285291 £7.45

Cylinder head bolts number 90444861 £27.37

Inlet manifold gasket 90351504 £4.34 (needs a bit of modifying)

Exhaust manifold gasket 90351504 sorry lost invoice.

Head gasket 92061359 sorry lost invoice

Valve stem seals 90215296 £13.16

 

Put it all together and hey presto you've got a 37% increase in power.

 

Cheers James. *cool* *biggrin* *smile* *wink* 😬

 

 

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