Probe piston review?

[VooDoo]

Now I know with as many sets that have been sold throughout these forums we could get some feedback. I am sure that there are a couple people who have these in and pushing mid 400 to 500 rwhp. How about some updates I have seen alot of requests for this. I am in the stages of buying my pistons. As of now I will be going with Wiseco's .20. I am just wondering if there is a reason I keep hearing people say " I wouldn't go with probe for performance builds" Any data to justify this would be nice. Especially I you have not used them.

Only reason I am asking is cause I am not sure 100% what Pistons. I see that the top hp supras on 7mpower is using them so They have been proven. But will the change in compression make a difference? Wiseco is giving a 9.0:1. and the the other choices I am debating will be around 8.5:1. I am just curious what type of adjustment I will have to make other place if any.

So I found a set of
wiseco's w/rings for 565.00


Probes are 395.00 (but I am just skeptical). I mean forged is forged but as far as consistancy and quality is my concern. Probe is not new to the piston game by no means but the 7m is no ordinary motor. It's special. (at least thats what i tell mine when we are alone together)

Any recomendations? Keep in mind this will be a non DD. but will be used to cruise around town and Haul to the track a couple times a month. My target HP will be high 400's hoping to add another 100 down the road with MORE fuel mods and perhaps a standalone in the future.

Thanks for reading and I appreciate any feedback.

Larry

 

[holdbrooks]

how much of a reveiew do you expect? I have been running them at around 400hp since about a month after they shipped my motor has not exploded yet and I have been tuning my setup via maft pro. So they have taken my tuning and 18psi just fine. But honestly you won't find someone that has ran them in a high hp motor and taken them out and ran a bunch of tests.

 

[bigaaron]

I have shipped about 100 sets of them now with no complaints or negative feedback at all, how much of a better track record could anyone ever expect?!? I think it's just a case where the price is so low that people think they are no good, and that is not the case here at all. There are another 12 sets of .020" and .040" in production for us right now, scheduled to be ready in about 10 days.

I GUARANTEE that if I shipped 100 sets of Ross pistons or JE or any other brand for that matter, I would have had more problems to deal with.

 

[VooDoo]

Like I said what are the reasons for the comments made about not running them? Or suggesting going another route? Give me some data to support that. But if comments are made about a product I expect to see proof to support the comment. The way I see it is if you can't give a SPECIFIC reason on why not to run these then don't downgrade them. I just would like some of the guys that have suggested to not run them tell me why. I thing the price is amazing for a set of forged pistons. I would like to save some money to put elsewere . However I at the same time am not going to short myself in the long run to save a few bucks. I only want to buy 1 set of pistons. From what you are saying there has been no complaints. This only gets me considering them. That is what I want to hear the more satisfied customers. OR for that matter unsatisfied.

Still would like for someone to help me on the C/R ordeal.

THANKYOU AARON. that is what I am talking about.

 

[Rennat]

for compression you have to consider that the specs they used were probably for a STOCK head gasket and a STOCK height everything.

if you have those 9.0:1 JE's in a motor, and you slap a 3mm HKS HG on it, its not going to be 9.0:1 anymore... i did the math for my block and head and everything.

1.2mm HG = 9.0:1
2.0mm HG = 8.45:1
3mm HG = 8.0:1

thats just my engine though, and its also bored .40 over...
and yes, i used probes, and i must say that im VERY happy with them, i had my doubts as well, but there performing flawlessly. and once i get my turbo rebuilt im gonna turn up the boost a bit!

and the best way to 'compare' pistons is to look at them, and compare the material used in each, and if you can get any other options, ceramic coating, dry-flim lube on the side, or anything like that.

 

[QWIKSTRIKE]

I have shipped about 100 sets of them now with no complaints or negative feedback at all, how much of a better track record could anyone ever expect?!? I think it's just a case where the price is so low that people think they are no good, and that is not the case here at all. There are another 12 sets of .020" and .040" in production for us right now, scheduled to be ready in about 10 days.

I GUARANTEE that if I shipped 100 sets of Ross pistons or JE or any other brand for that matter, I would have had more problems to deal with.

Now why would you say this? Most problems are based on poor machining, or assembly

 

[Doward]

I'm the one that helped design these pistons. Everyone that's checked them out has said they are NOT the extreme best piston on the market - those would be something like CP pistons. What they are, however, is 95% of the quality of the CP pistons, at a MUCH lower price point.

Just do me a favor - Sean and I optimized the quench pattern on these with a stock height head gasket. PLEASE do not run a 2 or 3 mm head gasket, unless you've actually cut that much away from the head/block :3d_frown:

 

[7Mboost]

John when were running we need to prove these nutswingers wrong about our Probe pistons!

 

[IJ.]

John when were running we need to prove these nutswingers wrong about our Probe pistons!

Which "nutswingers" would that be?

I only see support for the probes in this thread so are you going to prove them wrong in their support?

I'm confused...

 

[7Mboost]

Which "nutswingers" would that be?

I only see support for the probes in this thread so are you going to prove them wrong in their support?

I'm confused...

Sorry I was carrying over from another thread where there were a bunch of people questioning them (I'll post link if I can find it), people who didn't even have them and seemed brand loyal.

 

[IJ.]

Hence my confusion

 

[Rennat]

I'm the one that helped design these pistons. Everyone that's checked them out has said they are NOT the extreme best piston on the market - those would be something like CP pistons. What they are, however, is 95% of the quality of the CP pistons, at a MUCH lower price point.

Just do me a favor - Sean and I optimized the quench pattern on these with a stock height head gasket. PLEASE do not run a 2 or 3 mm head gasket, unless you've actually cut that much away from the head/block :3d_frown:

wish that was in the probe piston faq thread... lol

 

[Fuzz420]

wish that was in the probe piston faq thread... lol

lol, my thoughts exactly. I have a 2.0mm gasket and i have no idea what was taken off the head:icon_neut

 

[Rennat]

your probably pretty close to stock with that 2mm if you got the head an block shaved... but i opted for the 3mm for the compression drop, but if i was told that the piston was actually designed for a stock style head squish i would have gotten a 1.2 or a 2mm... i think cometic makes like a 1.8 or something done they?

 

[holdbrooks]

aaron brought up the point that I was also going to make what more can you say about them i have not seen any complaints out of all the pistons shipped. surely if they are sub standard pistons you would have tons of threads about their problems much like the ebay turbos/manifolds out there.

 

[Rennat]

aaron brought up the point that I was also going to make what more can you say about them i have not seen any complaints out of all the pistons shipped. surely if they are sub standard pistons you would have tons of threads about their problems much like the ebay turbos/manifolds out there.

but most people ask "how much HP can these pistons take"... and nobody honestly knows yet. hell if the stock ones can take like 600... then i would hope these cause take at least 750-800... but the fact of the matter is that most arent going to use a 'newer' piston that high, they'll go with the proven cp's, or the je's.... and i think its more for the peace of mind, they KNOW the pistons can take it.

only time will tell.

 

[VooDoo]

This is the comments I was looking for. I would imagine your right. Problems with these and I could only imagine the flaming there would be. Yet I have heard NONE! It is very assuring that Aaron and Doward are putting there stamp on these. They are so well respected and looked to for insite on so many things here on SM. I am glad this thread has not turned into a bash fest. I think in time we will see what these are capable of and it just might make others put there foot in there mouths.

I did have my head and block done guess I will need the machine shop to tell me what has been removed total from the last time AND this time. They will have the specs I would imagine.

 

[Doward]

They are still sitting in my block, with Eagle rods sitting under them.

Until I finish the r154 rebuild, and sell it, though, it will be a while before I get to run around with my Supra again.

 

[QWIKSTRIKE]

If tuned properly I see no reasons for these not to perform. Any piston tuned improperly, or assembled wrong will have issues. My Wiseco's are coated on the sides out of the factory. My JE's served me with no issues either. I donn't see the point in saying that if they were JE's or what ever that there would have been issues. That statement was the only thing in this thread I disagree with. That said if these are forged pistons, and you assemble, and tune your motor properly they should last! They also should take more punishment than stock IMHO!

For the price you can't go wrong. For 565.00 you can get coated Wisecos. For 700 you can get JE's and for 750-800 you can get CP pistons. It depends on what you want and how much you have to spend.

 

[Rennat]

This is the comments I was looking for. I would imagine your right. Problems with these and I could only imagine the flaming there would be. Yet I have heard NONE! It is very assuring that Aaron and Doward are putting there stamp on these. They are so well respected and looked to for insite on so many things here on SM. I am glad this thread has not turned into a bash fest. I think in time we will see what these are capable of and it just might make others put there foot in there mouths.

I did have my head and block done guess I will need the machine shop to tell me what has been removed total from the last time AND this time. They will have the specs I would imagine.

how is your block done if you dont have your pistons yet? they have to bore and hone to a certain clearance...