Dave's Piazza Project Thread
Posted: Thu Jul 27, 2006 12:08 am
Thought I'd better post up all the latest on my project since I havent posted for a while.
Latest thing to happen to my Piazza is a cracked head which finally caught up with me a week ago. For those of you that saw my dyno results in another thread on this site, you would have seen that running over around 10psi with the standard setup makes it run really lean throughout the rev range. Well, I found that out after I had mine turned up to 14psi for around 6 months. I quickly turned it back when I had it dyno'd. Anyway, the lean running over that period is the cause of the crack in the head next to the exhaust valve in cylinder 2. I was lucky to be driving on it so long with the crack slowly opening up for about 6 months, however the crack finally became too big and I had water mixing with oil.
Everyone who wants to run over 10 psi boost with the standard setup should read this.......dont do it!!! This is the result:
[thmb]Http://www.isuzupiazza.com/puplic/images/83845271.jpg[/thmb]
However, this hasnt all been bad as it has given me an oppurtunity to get the Rodeo runners and injectors on the new head ready for the Motec. Nearly have all the sensors I need for the Motec, just need to mount it and start wiring it up which is all straight forward. I will be using the single throttle from the Rodeo when I get the Motec up and running, but for the time being I am running the Rodeo runners (which are a fair bit larger in diameter) with the Piazza plenum and throttle body. Heres a pic of the manifold with my new reco'd head. This should be going back on the block tomorrow night hopefully!!
[thmb]Http://www.isuzupiazza.com/puplic/images/39854922.jpg[/thmb]
As far as the ignition side of the ecu setup goes, I am using a Rodeo CAS with custom 60-2 trigger wheel, this integrates well with the Motec and is simple to setup, not to mention bolts straight in of the original distributor.
[thmb]Http://www.isuzupiazza.com/puplic/images/11795514.jpg[/thmb]
The turbo I have for the upgrade is a VF8 from a Subaru Liberty/Legacy, its a fair bit larger that the Piazza one, flows enough for around 280HP and bolts straight in place of the old one with some minor mods.
[thmb]Http://www.isuzupiazza.com/puplic/images/47359013.jpg[/thmb]
Thats about it for now, hopefully will have a bit more to add in the next couple of weeks.
Dave
Latest thing to happen to my Piazza is a cracked head which finally caught up with me a week ago. For those of you that saw my dyno results in another thread on this site, you would have seen that running over around 10psi with the standard setup makes it run really lean throughout the rev range. Well, I found that out after I had mine turned up to 14psi for around 6 months. I quickly turned it back when I had it dyno'd. Anyway, the lean running over that period is the cause of the crack in the head next to the exhaust valve in cylinder 2. I was lucky to be driving on it so long with the crack slowly opening up for about 6 months, however the crack finally became too big and I had water mixing with oil.
Everyone who wants to run over 10 psi boost with the standard setup should read this.......dont do it!!! This is the result:
[thmb]Http://www.isuzupiazza.com/puplic/images/83845271.jpg[/thmb]
However, this hasnt all been bad as it has given me an oppurtunity to get the Rodeo runners and injectors on the new head ready for the Motec. Nearly have all the sensors I need for the Motec, just need to mount it and start wiring it up which is all straight forward. I will be using the single throttle from the Rodeo when I get the Motec up and running, but for the time being I am running the Rodeo runners (which are a fair bit larger in diameter) with the Piazza plenum and throttle body. Heres a pic of the manifold with my new reco'd head. This should be going back on the block tomorrow night hopefully!!
[thmb]Http://www.isuzupiazza.com/puplic/images/39854922.jpg[/thmb]
As far as the ignition side of the ecu setup goes, I am using a Rodeo CAS with custom 60-2 trigger wheel, this integrates well with the Motec and is simple to setup, not to mention bolts straight in of the original distributor.
[thmb]Http://www.isuzupiazza.com/puplic/images/11795514.jpg[/thmb]
The turbo I have for the upgrade is a VF8 from a Subaru Liberty/Legacy, its a fair bit larger that the Piazza one, flows enough for around 280HP and bolts straight in place of the old one with some minor mods.
[thmb]Http://www.isuzupiazza.com/puplic/images/47359013.jpg[/thmb]
Thats about it for now, hopefully will have a bit more to add in the next couple of weeks.
Dave