anyone ever done a zvh turbo on high compression
13-12-2005, 09:19 AM
#2
if its a really small crap turbo you can probably run a bar of boost safely 
but you wouldnt want to do it that way of course.
Impossible for anyone to really say without knowing more about what turbo it is etc, and what you are doing for management, if you are looking at something really basic like an ERL MF2 setup then i should think your estimate is pretty much all you are going to manage.
but you wouldnt want to do it that way of course.Impossible for anyone to really say without knowing more about what turbo it is etc, and what you are doing for management, if you are looking at something really basic like an ERL MF2 setup then i should think your estimate is pretty much all you are going to manage.
13-12-2005, 09:25 AM
#4
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Roosie.
Looking at your other post i take it your looking to build a ZVH with standard zetec pistons and compression and run a T34.
Thats a bit odd
Big turbo, crap engine!
Don't skimp on the internals of your engine or you will be doing it again in two weeks!!
Looking at your other post i take it your looking to build a ZVH with standard zetec pistons and compression and run a T34.
Thats a bit odd
Big turbo, crap engine!Don't skimp on the internals of your engine or you will be doing it again in two weeks!!
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13-12-2005, 10:20 AM
#17
Originally Posted by Sketch
Standard CVH head on a standard 2.0 zetec bottom end will give approx 9:1.....
Hope this helps
Hope this helps
Well based on that, you are going to get away with a lot more than 6psi without det if its mapped properly Roosie.
13-12-2005, 10:32 AM
#19
depends on how well you manage the heat, bit of water injection would probably extend it a couple of psi.
set of vauxhall 86mm squeeze cast pistons seems a better idea though, ive seen 300bhp even on the N/A ones, and 400+ is easy on the turbo ones!
set of vauxhall 86mm squeeze cast pistons seems a better idea though, ive seen 300bhp even on the N/A ones, and 400+ is easy on the turbo ones!
13-12-2005, 10:46 AM
#20
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Zetec head - 48cc.
CVH head - 57cc.
Zetec multi layer gasket - 0.9mm.
CVH gasket ??? looks like 1mm or maybe a bit more.
Zetec deck height 0.1mm above block face.
Going from memory here, obviously there could be 1 or 2 cc either way depending on your engine and how ford were doing things at that time.
As far as I can remember, using 2.0 standard pistons and a CVH hemi head will get you about 9:1. Skim 0.5mm and it will be 8.6:1 - I think thats correct...but it might not be so check yourself.
Edit: I've got some XE Mahles lying about if anyone is interested just make an offer. I can get them matched up to Zetec rods if required.
CVH head - 57cc.
Zetec multi layer gasket - 0.9mm.
CVH gasket ??? looks like 1mm or maybe a bit more.
Zetec deck height 0.1mm above block face.
Going from memory here, obviously there could be 1 or 2 cc either way depending on your engine and how ford were doing things at that time.
As far as I can remember, using 2.0 standard pistons and a CVH hemi head will get you about 9:1. Skim 0.5mm and it will be 8.6:1 - I think thats correct...but it might not be so check yourself.
Edit: I've got some XE Mahles lying about if anyone is interested just make an offer. I can get them matched up to Zetec rods if required.
13-12-2005, 11:00 AM
#23
Originally Posted by Rs Gus
Originally Posted by chip-3door
skim .5mm off the pistons for 8.6 do you mean?
probably not the best way to do it if they are weak initially!
also skimming pistons tends to ruin squish
probably not the best way to do it if they are weak initially!
also skimming pistons tends to ruin squish
The chamber isnt a perfect circle (or is it on the hemi cvh head, im not familar witht them?) and thats for a reason, by lowering the outside edge of the piston its not good for squish
13-12-2005, 11:15 AM
#25
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It would obviously be better to leave a squish band by only removing from the middle of the piston (just like Arias made my pistons), but on the cheap it's a viable option.
You could also get the CVH head machined out for a few CC more.
Probably the best for little money is the XE Mahle setup, as long as you know someone that can machine to the accuracy required for a good price.
You could also get the CVH head machined out for a few CC more.
Probably the best for little money is the XE Mahle setup, as long as you know someone that can machine to the accuracy required for a good price.
13-12-2005, 12:58 PM
#26
it would be interesting to see tho, someone just nail in a std 1.8/2.0l zetec and see what it would take before lift off lol
i got a complete 1.8 engine, so if anyone is willing to give a rst head/manifold and turbo - let the experimenting begin lol
i got a complete 1.8 engine, so if anyone is willing to give a rst head/manifold and turbo - let the experimenting begin lol
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