[rollinhonda]

Well, may be a low-bidder there somewhere.

 

[Dnick]

Now we are talking. The problem with generally accepted minimum thread depth, pitch and surface engagement formulas like tmM/(t mM+tmB) a M = 1-aB and D d/2 = H/2-HB/2 - HB = a B*P/tan (a °/2) tan (a °/2)*H/P is the direct conflict with dt = d2 + (0.5-aB)*P/tan (a °/2) but only when FBr = RmB*As AND At = FBr*(1/tmM+1/t mB) UNLESS yield is expected to conform to Fp = As*Rp pB = bB*RpB t pM = b M*RpM OR B = tpM/(t pM+tpB) a M = 1-aB with a strip off diameter of dt = d2+(0.5-aB)*P/tan (a °/2) and a cylindrical value equal to At = Fp*(1/tpM+1/t pB).

Can I get a DUH? :act060:

Double-Duh......
I'm LMAO seeing this on the page. Good paste.
:act018:

 

[hopingforahonda]

It was I who posted the OSC video.

Was that post from a dream?:act060:
Better check my post.
http://www.ridgelineownersclub.com/forums/showpost.php?p=1766897&postcount=42

 

[hokiefyd]

Was that post from a dream?:act060:
Better check my post.
http://www.ridgelineownersclub.com/forums/showpost.php?p=1766897&postcount=42

Not a dream...just an alternate world. :act014: It was something I had posted on MDXers.org and mixed up with this forum.

Interestingly, I contacted OSC's engineering department, to ask them about the corrosion issue, and how their design solves the problem. They stated that they use copper coolers and copper fittings, where others use aluminum, and they believe this solves the issue. From this thread, it seems that may not be the case. In fact, it seems to be the contrary -- the OSC radiator looks to have the aluminum components where other brands may be using copper.

http://www.mdxers.org/forums/73-fir...mdx-2001-2006/43646-pre-emptive-radiator-replacement-yes-no-13.html#post1063857

 

[OhSix]

Not a dream...just an alternate world. :act014: It was something I had posted on MDXers.org and mixed up with this forum.

Interestingly, I contacted OSC's engineering department, to ask them about the corrosion issue, and how their design solves the problem. They stated that they use copper coolers and copper fittings, where others use aluminum, and they believe this solves the issue. From this thread, it seems that may not be the case. In fact, it seems to be the contrary -- the OSC radiator looks to have the aluminum components where other brands may be using copper.

http://www.mdxers.org/forums/73-fir...mdx-2001-2006/43646-pre-emptive-radiator-replacement-yes-no-13.html#post1063857

Hokie, may I asked how you contacted them? Reason being, The OSC from Rock Auto was delivered one week ago. In attempt to understand the cause of the wave in the core and absence of a cap their video claimed would be included, I've used the "contact us" web form on their home page, sent email to "support@oscautomotive.com" and called their toll free number which was forwarded to vmail. So far, no response.

As far as component materials, there is no doubt the OSC 2830 is aluminum with plastic upper and lower caps. Personally, I'm much less concerned with materials than I am construction. The point of that being the OEM heat exchanger and ports are aluminum but the underlying issue with that design is the reliance of the trans fluid ports threading into the exchanger being responsible for both mechanical compression and fluid isolation. The design is marginal - at best - and when (not if) it fails, it allows mixing of incompatible fluids.

The aftermarket solved both of those issues by creating separate mechanisms for compressing the exchanger against the tank and conducting fluids safely - even during "common" failure modes associated with time, vibration and environmental exposure.

I was hopeful OSC would be both a good manufacturer and responsive customer focused organization. Right now, they have two hills to climb. I'm not impressed, yet.

EDIT 1: Just read your post on the MDX forum. Saw that you contacted OSC via email. I'm gonna try phone again.
EDIT 2: why they would knowingly misrepresent the use copper in their construction when it is so easily verified to be otherwise is a total mystery. Geez!

 

[hokiefyd]

Yes, I did contact them with the Contact Us button on their web page. I got a reply from an email with the name Bill Shaver, the same person who represents them in their videos such as the one posted on Rock Auto. I began to wonder if "Bill Shaver" is a character that they invented, and every email response is from Bill Shaver, their head of engineering. Cool, right?...My question went right to the top!

I don't know if the answer I got was generic or not. I also don't know what type of cooler my MDX used from the factory. OSC seems to infer that the Asian brands use copper concentric coolers and the American brands use multi plate aluminum coolers. The TYC radiator for my MDX has copper pipes and fittings, so I'm assuming that it's got a copper concentric cooler inside. I do think the Ridgeline used an aluminum multi plate cooler, so I presume the MDX and Pilot did as well. With the little that I know, I'd say that OSC is probably a little truer to the OEM materials than is TYC (yours has aluminum pipes and fittings). With the stout external cooler I put on my MDX, I'm not concerned about it either way...it's just an observation.

It is curious, though, OSC's email reply to me. Because I asked specifically about both our MDX and Ridgeline, you thought they might have looked those applications up to see which materials are used for the cooler before telling me "copper".

It makes me wonder if OSC's radiators are re-boxed, and the material of the cooler is just luck of the draw. Like my TYC, your OSC's radiator fins stop about 1/2-3/4" from the top and bottom of the stack, whereas the OE Denso's fins went all the way. I clued in on that and wonder if OSC and TYC are sourcing the main aluminum stack from the same supplier.

 

[OhSix]

Yes, I did contact them with the Contact Us button on their web page. I got a reply from an email with the name Bill Shaver, the same person who represents them in their videos such as the one posted on Rock Auto. I began to wonder if "Bill Shaver" is a character that they invented, and every email response is from Bill Shaver, their head of engineering. Cool, right?...My question went right to the top!

I don't know if the answer I got was generic or not. I also don't know what type of cooler my MDX used from the factory. OSC seems to infer that the Asian brands use copper concentric coolers and the American brands use multi plate aluminum coolers. The TYC radiator for my MDX has copper pipes and fittings, so I'm assuming that it's got a copper concentric cooler inside. I do think the Ridgeline used an aluminum multi plate cooler, so I presume the MDX and Pilot did as well. With the little that I know, I'd say that OSC is probably a little truer to the OEM materials than is TYC (yours has aluminum pipes and fittings). With the stout external cooler I put on my MDX, I'm not concerned about it either way...it's just an observation.

It is curious, though, OSC's email reply to me. Because I asked specifically about both our MDX and Ridgeline, you thought they might have looked those applications up to see which materials are used for the cooler before telling me "copper".

It makes me wonder if OSC's radiators are re-boxed, and the material of the cooler is just luck of the draw. Like my TYC, your OSC's radiator fins stop about 1/2-3/4" from the top and bottom of the stack, whereas the OE Denso's fins went all the way. I clued in on that and wonder if OSC and TYC are sourcing the main aluminum stack from the same supplier.

Yep, the Denso OTW exchanger is an aluminum stacked plate design. Ports are aluminum too. Logically, the transfer characteristics of a multi-plate would seem superior to concentric. No?

Good catch on the fin/tube core connection at the upper/lower plates. After reading your observations, hadta run back to images to check it out. Didn't notice this before.

The Denso lower plate/core:

The OSC lower plate/core:

All that's needed to build the ultimate rad is something like this. No crimped tanks, no plastic, no galvanic corrosion, no change to OEM heat management. Perfection!

 

[schwejo]

some additional reading on the OSC website, including a 35 page pdf comparing "ours to selected theirs" I wish they would have included a Koyorad. From their examples, there are plenty of OSC radiators that use aluminum coolers, so it seems they cherry picked in their video example. Of course that doesn't mean that they don't meet or exceed the OEM design as they say in the OCS literature.

http://oscautomotive.com/resources/

Personally I'm not so concerned with the brazed on input/outputs. Even a sufficiently designed pipe nipple though the radiator tank into the cooler would/should be pretty bullet proof assuming proper compatible materials, and compression and flare nut connections are completely reliable if properly used. It just seems the OEM design was overly complex and the KISS principle should have been used.

I also wonder why none of the aftermarket models have thought it necessary to replace the foam strip across the top of the radiator. If its only vibration management, I can live with that, but if Honda put it there as air flow management, then it seems it should be replaced.

I believe most other OEM's including other Honda models use the similar design that we are seeing on aftermarket radiators and that many of the other non-Honda SMOD cases you read about are internal failures of the cooler, not the connections points. If there is any consolation, we more often experience a catastrophic failure and if you notice it quickly enough the tranny can be saved. Not so with an internal pinhole failure where there is no immediate indication of a problem.

 

[skelley521]

Has anyone that has installed the OSC radiator noticed any difference in operating temperature; warm up time or transmission function?
Also what are your final feelings; thoughts or concerns after install?

 

[OhSix]

Has anyone that has installed the OSC radiator noticed any difference in operating temperature; warm up time or transmission function?
Also what are your final feelings; thoughts or concerns after install?

If time allows, the OSC will be installed in the next few weeks.

In terms of being an effective heat management component, that can only be known via complete temperature mapping comparing OEM to OSC at each point of fluid entry/exit. Qualitative & Quantitative data will be available when the installation is complete. More on that later.

Comments on OSC post sale support:
The day after the radiator was unpacked, a note was sent via the OSC "contact us" web page. No response for several days.
Email to "support@oscautomotive.com" from my personal address was sent. No response.
Email to "support@oscautomotive.com" was sent from my work address. No response.
Call 1 to toll free # contact was answered, I requested to speak with someone in customer care or tech support. The call was transferred to (person unknown) which appeared to answered by mobile carrier vmail. No personal greeting, standard automated system recording. Vmail left. No return call.
Call 2 to toll free # was transferred into the ether.

I am left with the impression this company is not end user focused, preferring to dedicate their resources/cater to the "installer" market segment. That impression is at least partially supported by the language in their videos where they are pitching to the shop owner providing products to their customers. Although their products seem to be of acceptable quality, I'm very disappointed in their after sale support.

 

[speedlever]

Great work Pat!

 

[karmutzen]

Started getting some slow leaking from my OEM radiator and so time to replace. Went OSC from Rock Auto after reading this thread. Arrived today, same packing, no obvious damage to the box. Same edge wave, more than I'd like. Kink in one tranny cooler fitting didn't impress either.

 

[Dnick]

Send it back!

....... and thanks for sharing your experience. Not encouraging.

 

[OhSix]

Started getting some slow leaking from my OEM radiator and so time to replace. Went OSC from Rock Auto after reading this thread. Arrived today, same packing, no obvious damage to the box. Same edge wave, more than I'd like. Kink in one tranny cooler fitting didn't impress either.

The wave is extreme. And the bent trans fluid tube is unusable. Rock should make it right. I would request an advanced replacement and a pre-paid return shipping label.

Sorry for your trouble. Don't accept anything but full replacement at no additional cost.

 

[Carsmak]

BUY LOCAL, Insist on a pressure test before acceptance.

NUFF SAID...

 

[karmutzen]

Well I'm impressed with OSC for fast response and standing by their product. Same as Hokiefyd, I sent them a quick note with a short description via their web page and Bill Shaver himself, Director Product Development and Engineering, responded within about 4 hours with very positive assistance.

 

[speedlever]

BUY LOCAL, Insist on a pressure test before acceptance.

NUFF SAID...

Can any Autozone/Advance auto do a pressure test? How is this accomplished?

I'm glad to see the strong customer response by OSC. That is encouraging!

 

[Carsmak]

Can any Autozone/Advance auto do a pressure test? How is this accomplished?

I'm glad to see the strong customer response by OSC. That is encouraging!

No not as far as my Autozone experiences but a local radiator shop can, but at least at Autozone I could inspect the box, and the radiator before walking out the door.

And I do agree, OSC is handling this very well, I can't say the same for Spectra.

 

[spoonycoot]

Just an FYI

I know this thread is fairly old, but I thought I would clarify a few things for anybody that finds this while searching. I was researching OSC rads when I came across this thread.

The video you see on Rock Auto is just a generic video on the benefits of osc rads. I saw the same video while looking for the radiator for my specific vehicle, which happens to be a 94 camaro. What this tells you is the info isn't specific to any particular model, for example the copper core isn't a feature of the radiator you bought. As for the cap, on Rock Auto's site in bold above the description on the product page it states, "Cap not Included."