Oliver Jetson
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| posted on 6/10/10 at 05:59 PM |
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Vauxhall 20xe re-build costs
What should you budget for a typical rebuild on a running but tired 2 litre redtop engine?
What in particular would be worth upgrading if future power increases were to be made? I'd be thinking throttle bodies, cams, pistons/rods, dry
sump, engine management etc something in the region of a shade over 200bhp.
My engine budget would lie between £2k and £2.5k. Where would this get me?
Thanks,
Oli
[Edited on 6/10/10 by Oliver Jetson]
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Dopdog
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| posted on 6/10/10 at 07:34 PM |
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make sure you change the oil pump drive and pressure releif spring. This is the main issue with the engines. Next remove the cam belt adjuster, use a
fixed wheel and take up the slack with the water pump.
Think well before you changes cams as a lot of people i spoke to wished they had not as they lost the bottom end power. I got 190bhp out of a standard
engine on carbs and mbe ignition.
It ran as sweet as for 5 years only changed spark plugs and gave it death all the time.
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perksy
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| posted on 6/10/10 at 09:14 PM |
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Be aware it can get expensive pretty quickly
It really depends on just how tired the donor engine is
Do a budget and use Autovaux for the standard parts and SBD or similar for the more specialised bits
*If* its got the dreaded plastic cam belt pulleys they are the first thing to bin
Oil pressure releif valves can cause problems aswell
mine runs alot of SBD parts including their TB's, cams, dry sump & exhaust system etc
So if you need any more details just ask 
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Oliver Jetson
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| posted on 6/10/10 at 10:39 PM |
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Yeah it's quite tempting to spend a load on SBD or QED parts! My overall car budget is 9 grand. I'm looking to get an ex academy Caterham
and convert it over time to redtop power or get a more or less ready sorted Westfield but I've always fancied building an engine myself.
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martyn_16v
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| posted on 8/10/10 at 07:43 PM |
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I've got a feeling the standard rods and pistons should be up to 200hp, but you will want to change the rod bolts.
Dry sump isn't going to be do-able within budget unless you made the throttles and engine management cheap (i.e. bike TB's and
Megasquirt). Again, dry sumping wouldn't be near the top of the list of things that need doing, I'd go for a shallow wet sump with some
decent baffles and see how you go to start with.
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