1.8 Zetec turbo using 1.8t VAG pistons, anyone done it?
#1
PassionFord Post Troll
Thread Starter
1.8 Zetec turbo using 1.8t VAG pistons, anyone done it?
As you may have seen from my other thread, I will be carrying out a 1.8 zetec turbo conversion as a gap fill in my car...I have been looking into decompression plates and came across a few people who have used VAG 1.8t pistons as they are forged and meant to be good for some serious HP, which in my engine they should be fine as im only looking for 180hp or there abouts
Does anyone know what compression ratio you end up with roughly? And doing it this way, can we do away with a de-compression plate?
Im basically building the engine for as cheap as I can and can get the pistons for free so it will only cost me the machining work and boring the block out slightly
Thank you for any help
Does anyone know what compression ratio you end up with roughly? And doing it this way, can we do away with a de-compression plate?
Im basically building the engine for as cheap as I can and can get the pistons for free so it will only cost me the machining work and boring the block out slightly
Thank you for any help
#2
PassionFord Post Whore!!
Not any help to your question...
But for what Vag lumps cost is not worth trying to fit a 1.8t in with box?
Be different and they've been fitted to most stuff, cheap enough to get get reasonable power out of them...
But for what Vag lumps cost is not worth trying to fit a 1.8t in with box?
Be different and they've been fitted to most stuff, cheap enough to get get reasonable power out of them...
#3
PassionFord Post Whore!!
#4
PassionFord Post Troll
Thread Starter
The real engine is where the money will be going lol
I know its been done a few times, but no one seems to be coming forward with compression ratios etc
#5
Engine Machinist
iTrader: (1)
yes, they fit with bushed silvertop rods, use 20mm pin pistons rather than the 19mm tapered rod ones if possible as it'll be much stronger. I can't remember the CR though. don't try to use the american zetec rods, or blacktop or the pistons will stick out of the top.
#6
PassionFord Post Troll
Thread Starter
yes, they fit with bushed silvertop rods, use 20mm pin pistons rather than the 19mm tapered rod ones if possible as it'll be much stronger. I can't remember the CR though. don't try to use the american zetec rods, or blacktop or the pistons will stick out of the top.
Im just looking for the cheapest way to get 180-200hp which will be fine for me for now...either de-compression plate or the 1.8T pistons route
#7
PassionFord Post Whore!!
Tbh if your only after 200bhp
Just use some arp bolts and a decomp plate
Your wasting time and effort tbh if you wanna put the money into another engine why bother...
Standard engine will cope fine
Just use some arp bolts and a decomp plate
Your wasting time and effort tbh if you wanna put the money into another engine why bother...
Standard engine will cope fine
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#8
PassionFord Post Troll
Thread Starter
Yeah ive decided to ditch the 1.8t piston idea and go for a decomp plate or a 2mm thick head gasket
Had a friend run around 300hp on the thick head gasket and it lasted fine until he done a top speed run lol
Does anyone know if the ARP bolts differ from steel rods to the original con rods? I have a set in the garage but need to check their part number and what rods they fit
Had a friend run around 300hp on the thick head gasket and it lasted fine until he done a top speed run lol
Does anyone know if the ARP bolts differ from steel rods to the original con rods? I have a set in the garage but need to check their part number and what rods they fit
#10
PassionFord Post Troll
Thread Starter
Yep I know its definitely been done, but what pistons and rods were used? Blacktop? Silevrtop? Which 1.8t pistons were used? What CR is the end result? Its all pretty sketchy in the details so I will just end up either using a thick headgasket or using a decomp plate
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bassboy (20-06-2016)
#12
PassionFord Post Troll
Thread Starter
1.8 Zetec engine complete
Exhaust manifold adaptor from zetec to CVH
RST Exhaust manifold
ERST exhaust - not paid for yet
New ERST T3 turbo - 2wd Saph turbine, 360 thrust bearing, .48 exhaust housing, -31 actuator
Jenvey inlet manifold with Esc Cosworth TB - already had
2 litre flywheel and clutch new
Universal intercooler
MTX75 gearbox and conversion kit
Cant remember what else....next big things I need to buy are decomp plate or thick headgasket, Megasquirt MS2, injectors and god knows what else lol
Thank you for confirming the silvertop rods and letting me know what the CR etc is..great help!
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