time bomb??

TNVIPER said:
I wouldnt worry with it at your mod level....BTW..your 1/8 times in your sig are great for your mod level..:rock:

I WOULD WORRY WITH THE MODS IN HIS SIG- LOOK AT MY THREAD ON A BASICALLY MINIMALLY MODDED ENGINE- LIKE HE LISTS:( AS HAVING.........

My findings speak. Cavitation is an issue to be very afraid of.
 
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supercar1of1 said:
[The reason I asked if anyone had tried replacing just the pistons is that the conversation keeps returning to them as being very likely the main culprit.

The issue with the rods is in my opinion a very close second to the pistons.

If you are going to replace the pistons, it will be only the additional cost of the rods (in my case $2500 for Olivers)...so, in my mind the minimum build to be safe is about $4k...but for another 6 or 7...you get everything..
 
Prof said:
The issue with the rods is in my opinion a very close second to the pistons.

If you are going to replace the pistons, it will be only the additional cost of the rods (in my case $2500 for Olivers)...so, in my mind the minimum build to be safe is about $4k...but for another 6 or 7...you get everything..[/QU[SI


Could it be that the rods failure is simply the

result of the pistons first failing.:dontknow:






.
 
supercar1of1 said:
Prof said:
Could it be that the rods failure is simply the result of the pistons first failing.:dontknow:.


Could be...but why not, 90% of the work is done in doing the pistons...with 10% more effort and a couple of thousand dollars...all is good.
 
How about the cam bearings?

If your engine was throwing pieces for any period of time prior to the boom, I would think about line boring and putting in roller bearings for the cam.
 
Prof said:
supercar1of1 said:
Could be...but why not, 90% of the work is done in doing the pistons...with 10% more effort and a couple of thousand dollars...all is good.



If it truely is an oiling issue then the bearings

would react the same no matter whose rods/pistons you used, would they

not?:dontknow: :confused:












.
 
supercar1of1 said:
Prof said:
If it truely is an oiling issue then the bearings

would react the same no matter whose rods/pistons you used, would they

not?:dontknow: :confused:
Ding!!! You win a cookie!:marchmellow: :marchmellow: As far as assembling the engine closer to the looser side of the factory tolerances, I think that is BS. That's not a fix at all.

I think the true way to solve the issue is with a dry sump oiling system which in my eyes is too big a nut to fix a factory flaw.
 
;) The oiling feed dynamics is crap- needs looking into, the crap ass Hypertectic pistons that Mopar installed (they used to be FORGED) as a fix for their emissions problem ( and saving themselves a little money along the way- and creating a problematic time bomb for us owners down the road) also needs some strong attention. I just can't believe that Mother Mopar did this to their flagship supercar engine. . . . :dontknow: Why couldn't they continue installing FORGED pistons with the tighter tolerances needed when machining for FORGED Pistons. Hypertectic Pistons expand or swell at a faster rate and Ma Mopar installed these in our engines to help them pass emissions, my hypothesis is that they were having blowby issues upon startup with true Forged pistons, rather than delving into the continued use of Forged pistons and controlling blowby with a vaccum pump;) , they jumped into modern;) technology and began installing hypertectic pistons, and utilized their parts bin chock full of hypertectic pistons- saving them money along the way......



Things that need strong consideration:

Oiling system.
Bearings- Polydyn or simillar coating.
Connecting Rods- with upgraded hardware.
Pistons- toss them hypertectics as far as you can- BEFORE your engine does it for you!!!!!!!
Utilize a low tension ring package.
Install a vacumm pump.

These areas need attention on our engines. :)
 
As I recall the Gen I and Gen II Viper engines had an oiling problem under hard braking. The oil would surge to the forward part of the engine and be forced through the PCV port on the top of the engine...once through the valve it was forced out and in road racing, there was enough oil loss to kill an engine very quickly. Now there is just a freeze plug where the PCV valve used to be.

Just a little more data to add to the discussion.
 

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