Cracked Piston #2..WTH?
Just curious if any of you guys cracking pistons are running ARP or aftermarket headstuds.
I would hate to have something like this happen to my baby
Plus the closest shop I trust is 350 miles away.
I would hate to have something like this happen to my baby
Plus the closest shop I trust is 350 miles away.
Originally Posted by justchil
Just curious if any of you guys cracking pistons are running ARP or aftermarket headstuds.
I would hate to have something like this happen to my baby Plus the closest shop I trust is 350 miles away.
I would hate to have something like this happen to my baby
Plus the closest shop I trust is 350 miles away.and yes i do have ARP headstud on my car..
Originally Posted by NedrPolice
Q-bert! Whats the update! I want to see that car fixed by the time I get back for xmas!
See ya at the DSG.
-N
See ya at the DSG.
-N
cuase i was planning on running more than 21psi w. race gas...its an option ive never use yet..but i like to have it all there and safe if i decide to run race gas...plus its a good upgrade cheap..and safe...
How Much U Looking At If U Change Piston,rods, Bolts ,etc To Make It Stronger On Brand New Evo9 Engine?
I M Not Looking For 2.3 Stroker Kit. I Just Wanna Beef Up The Internal Parts.....so That Way I Could Run Methanol Kit (pushing 29psi =mabye Close To 380whp And Be Done With It)
Do U Have To Take The Engine Out In Order To Change Pistons And Rods?
I M Really Interested In This Routh , Beacuse I Blew The Engine Same Reason Above On My Previouse Evo8.
Thanks In Advance
I M Not Looking For 2.3 Stroker Kit. I Just Wanna Beef Up The Internal Parts.....so That Way I Could Run Methanol Kit (pushing 29psi =mabye Close To 380whp And Be Done With It)
Do U Have To Take The Engine Out In Order To Change Pistons And Rods?
I M Really Interested In This Routh , Beacuse I Blew The Engine Same Reason Above On My Previouse Evo8.
Thanks In Advance
Evolving Member
Joined: May 2006
Posts: 261
Likes: 0
From: Grafton, WI
I am sorry to hear of your problems. This is the first I am hearing of this, feel free to call me if you need any help. Its regeatable to see any evo owner have these kind of problems.
The stock evo pistons are a known weak area, however, we have seen them last very well on your level of whp. So far, we have even pushed 500 whp on them and no problems.
I strongly advise everyone to maintain a max 20.5 - 21 psi on pump gas. If you try and push higher than that on pump gas you can get the fmic heat soaked and detonation can result. Especially, when doing pulls back to back in a racing situation, (fmic begins to heat soak and collant temps rise) if anything the boost should be set a tad lower, maybe 20 psi. When racing on pump gas, 22 psi and a bad load of gas can result in knocking which presents tremendous shock loads across the face of the piston. Such a knock event may expose a piston with a casting flaw, or even a perfect stock piston as they are quite weak. I have seen excelent reliability on the Dyno Flash tuned ecus and this is the very first instance I have seen of this kind of failure out of the 950 plus ecus I have out there.
If you need any assistance with getting replacement pistons - I can provide you with a free set (I have many) and I can get you all the other things you may need at cost . I would like to come by and take a look at your engine if you don't mind - please give me a call when you get a chance.
The stock evo pistons are a known weak area, however, we have seen them last very well on your level of whp. So far, we have even pushed 500 whp on them and no problems.
I strongly advise everyone to maintain a max 20.5 - 21 psi on pump gas. If you try and push higher than that on pump gas you can get the fmic heat soaked and detonation can result. Especially, when doing pulls back to back in a racing situation, (fmic begins to heat soak and collant temps rise) if anything the boost should be set a tad lower, maybe 20 psi. When racing on pump gas, 22 psi and a bad load of gas can result in knocking which presents tremendous shock loads across the face of the piston. Such a knock event may expose a piston with a casting flaw, or even a perfect stock piston as they are quite weak. I have seen excelent reliability on the Dyno Flash tuned ecus and this is the very first instance I have seen of this kind of failure out of the 950 plus ecus I have out there.
If you need any assistance with getting replacement pistons - I can provide you with a free set (I have many) and I can get you all the other things you may need at cost . I would like to come by and take a look at your engine if you don't mind - please give me a call when you get a chance.
Not trying to start anything but why did you turn my boost up to 25lbs on pump gas, when you tuned my car on BR dyno? I asked you why you were doing that and you said, it wont hurt it bro. ????????????????????
If you bring us an EVO that is in good enough shape to upgrade rods/pistons this is what the build would look like:
Rods, $700
Pistons, $625
Gasket kit, $200
Timing belt, tensioner, $145
Rod bearings, $90
Labor, $1000
Oil, antifreeze etc., $200
This would get the shortblock up to the task of handling just about anything you can throw at it.
Rods, $700
Pistons, $625
Gasket kit, $200
Timing belt, tensioner, $145
Rod bearings, $90
Labor, $1000
Oil, antifreeze etc., $200
This would get the shortblock up to the task of handling just about anything you can throw at it.
I do not recall the specifics of your tuning session - but appranently your piston did not crack in half ?
Al
How Much U Looking At If U Change Piston,rods, Bolts ,etc To Make It Stronger On Brand New Evo9 Engine?
I M Not Looking For 2.3 Stroker Kit. I Just Wanna Beef Up The Internal Parts.....so That Way I Could Run Methanol Kit (pushing 29psi =mabye Close To 380whp And Be Done With It)
Do U Have To Take The Engine Out In Order To Change Pistons And Rods?
I M Really Interested In This Routh , Beacuse I Blew The Engine Same Reason Above On My Previouse Evo8.
Thanks In Advance
I M Not Looking For 2.3 Stroker Kit. I Just Wanna Beef Up The Internal Parts.....so That Way I Could Run Methanol Kit (pushing 29psi =mabye Close To 380whp And Be Done With It)
Do U Have To Take The Engine Out In Order To Change Pistons And Rods?
I M Really Interested In This Routh , Beacuse I Blew The Engine Same Reason Above On My Previouse Evo8.
Thanks In Advance
Very odd! I have never seen a piston broke in half like that.
IMHO... seems like a defective piston.
Hats off to Al for the offering and willingness to help!
TD05HR.... If I were you and with the money, I would take this opportunity to at least place a stronger than OEM pistons in your car. Just my 0.02!
Good luck on your repair!
IMHO... seems like a defective piston.
Hats off to Al for the offering and willingness to help!
TD05HR.... If I were you and with the money, I would take this opportunity to at least place a stronger than OEM pistons in your car. Just my 0.02!
Good luck on your repair!