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View Poll Results: Which piston is best for boost and long lasting
Diamond
91
36.69%
Wiseco
140
56.45%
Other
17
6.85%
Voters: 248. You may not vote on this poll
Diamond or Wiseco Pistons
Robin, do you leave the very thin edge on the pistons where the valve reliefs come into the piston (outside edge)?
I found that when we get the tune razor sharp(hot) that it likes to knock that edge off for us. lol
I also noticed the original set that Erik did for me had that egde removed.
Just another reason why I say he is "The Man"
Not the best picture, but I only got a few miles out of my wiseco pistons. This is on my 440. Wiseco had a bad batch of 440 pistons shipped out. The pistons cracked, I think that A&A had the same problem with wiseco also. They sent me a new set I hope that new pistons hold up.
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Not the best picture, but I only got a few miles out of my wiseco pistons. This is on my 440. Wiseco had a bad batch of 440 pistons shipped out. The pistons cracked, I think that A&A had the same problem with wiseco also. They sent me a new set I hope that new pistons hold up.
If I had a penny for every set of pistons I'd seen that had lifted ring lands I'd be fantastically rich right now! We've used Wisecos and also shelf Wisecos in several 1000+ RWHP deals and Diamonds as well and have yet to get a "bad batch" ourselves yet even with 4-6 engines going out a week for several years.
Now we have had lots of guys burn pistons up down here in Houston with every piston brand imaginable. We also have seen several pistons from one maker named above take out one side of the pin boss on their blower and turbo pistons but it isn't Wiseco or Diamond.
Looks like you have a lifted ringland not a cracked piston at least from what you show in that picture. That is not the piston companys fault. I have JE, CP, Mahle, Wiseco, Ross, SRP, Probe, Diamond and several other pistons like that usually from power adder stuff in my shop at any one time and none are the pistons fault.
If I had a penny for every set of pistons I'd seen that had lifted ring lands I'd be fantastically rich right now! We've used Wisecos and also shelf Wisecos in several 1000+ RWHP deals and Diamonds as well and have yet to get a "bad batch" ourselves yet even with 4-6 engines going out a week for several years.
Now we have had lots of guys burn pistons up down here in Houston with every piston brand imaginable. We also have seen several pistons from one maker named above take out one side of the pin boss on their blower and turbo pistons but it isn't Wiseco or Diamond.
If I had a penny for every set of pistons I'd seen that had lifted ring lands I'd be fantastically rich right now! We've used Wisecos and also shelf Wisecos in several 1000+ RWHP deals and Diamonds as well and have yet to get a "bad batch" ourselves yet even with 4-6 engines going out a week for several years.
Now we have had lots of guys burn pistons up down here in Houston with every piston brand imaginable. We also have seen several pistons from one maker named above take out one side of the pin boss on their blower and turbo pistons but it isn't Wiseco or Diamond.
I am aware of detonation can cause this to happen. I have a WB02 in the car. This problem was due to a bad piston, not detonation. Wiseco said that they had a few bad orders sent out and they all broke, this is on the 440 pistons only. It is good that they took care of the problem.
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TECH Regular
Joined: Feb 2006
Posts: 437
Likes: 2
From: Cleveland
Mike's not so happy with the situation now, but I can't really blame him for being pissed. It's tricky to make 440's work with nitrous/boost...even the smallest amount. The 1.050 compression height and thin lands resulting from a 4.100 or 4.125 stroke crank makes the tuning window very narrow.
That being said, 440's are becoming more common and it's Wiseco's job to make pistons stronger through evolution, but Mother Nature gives us and our competitors our lumps.
A design change was made for 2009 to our LS line to move from 1/16, 1/16 (about the same thickness as a 1.5, 1.5mm) top and 2nd rings to the 1.2 1.2 gfx ring. This give us another .030" worth of "real estate" to apply to the top ring land. Does this make the piston unbreakable-no, but it allows the customer a wider tuning window.
The 2009 design is what we sent to Mike a few weeks back. Although the parts aren't bullet proof, the lands are about as thick as a quick wearing .043 ring pack and will last many times longer. -Brian Nutter
That being said, 440's are becoming more common and it's Wiseco's job to make pistons stronger through evolution, but Mother Nature gives us and our competitors our lumps.
A design change was made for 2009 to our LS line to move from 1/16, 1/16 (about the same thickness as a 1.5, 1.5mm) top and 2nd rings to the 1.2 1.2 gfx ring. This give us another .030" worth of "real estate" to apply to the top ring land. Does this make the piston unbreakable-no, but it allows the customer a wider tuning window.
The 2009 design is what we sent to Mike a few weeks back. Although the parts aren't bullet proof, the lands are about as thick as a quick wearing .043 ring pack and will last many times longer. -Brian Nutter
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
Yep that's why we don't do stuff like that for big power adders in general! We already regularly see even .300+ ring lands get torched by some of the "tuners" out there. Then we have other guys that can put a 400 shot on a 1.000 tall piston and it lives! Again it's more in the shop and the tuning than the pistons for the most part. The GFX rings are nice though and they work great! We still stay at 4.000 stroke or less for any big power adders usually. On NA stuff of course we run shorter pistons and more stroke with no issues.
TECH Regular
Joined: Feb 2006
Posts: 437
Likes: 2
From: Cleveland
Erik, even with a good tune, bad things happen at the track with fuel systems etc. that can't be duplicated on a dyno. The best a racer can do is be aware of potential issues and deal with problems when they happen. Coming from "the old school" and as someone who's blown plenty of things up, I've told many people that the minute you put a K&N airfilter on something, that engine is now making more power than the o.e. intended and we must now take personal responsibility for trying to go faster. As quickly as the aftermarket progresses to make parts stronger, we as racers find ways to blow things up. No jabs here, just a general truth.
Mike's not so happy with the situation now, but I can't really blame him for being pissed. It's tricky to make 440's work with nitrous/boost...even the smallest amount. The 1.050 compression height and thin lands resulting from a 4.100 or 4.125 stroke crank makes the tuning window very narrow.
That being said, 440's are becoming more common and it's Wiseco's job to make pistons stronger through evolution, but Mother Nature gives us and our competitors our lumps.
A design change was made for 2009 to our LS line to move from 1/16, 1/16 (about the same thickness as a 1.5, 1.5mm) top and 2nd rings to the 1.2 1.2 gfx ring. This give us another .030" worth of "real estate" to apply to the top ring land. Does this make the piston unbreakable-no, but it allows the customer a wider tuning window.
The 2009 design is what we sent to Mike a few weeks back. Although the parts aren't bullet proof, the lands are about as thick as a quick wearing .043 ring pack and will last many times longer. -Brian Nutter
That being said, 440's are becoming more common and it's Wiseco's job to make pistons stronger through evolution, but Mother Nature gives us and our competitors our lumps.
A design change was made for 2009 to our LS line to move from 1/16, 1/16 (about the same thickness as a 1.5, 1.5mm) top and 2nd rings to the 1.2 1.2 gfx ring. This give us another .030" worth of "real estate" to apply to the top ring land. Does this make the piston unbreakable-no, but it allows the customer a wider tuning window.
The 2009 design is what we sent to Mike a few weeks back. Although the parts aren't bullet proof, the lands are about as thick as a quick wearing .043 ring pack and will last many times longer. -Brian Nutter
I have used your pistons on my 427 without any problems, and have been very happy with them. My car is NA no nitrous/boost, so the new pistons should work just fine.
This is when I was still using my 427. The motor is now in another car still running strong.
http://www.modified.com/uscc/sccp_06...rx7/index.html
What sort of application were those 440 pistons in? I've seen a few people spray 300 on 4.1 stroke applications. The one I have in mind is running a custom set of pistons. I do believe a lot of it is in the tune, but at a point you are exceeding common sense and have to foresee problems.
Not the best picture, but I only got a few miles out of my wiseco pistons. This is on my 440. Wiseco had a bad batch of 440 pistons shipped out. The pistons cracked, I think that A&A had the same problem with wiseco also. They sent me a new set I hope that new pistons hold up.
TECH Regular
Joined: Feb 2006
Posts: 437
Likes: 2
From: Cleveland
Hey there, yes we're back ordered right now on some LS parts. Sorry about that, but we're working on it. I guess the only thing I can tell you is proven parts are worth the wait sometimes when you balance it against the lifetime of an engine.