I bought a TR224/112/.563 cam used. It's mint but the markings don't make sense.
On one end of the cam hand etched is "T5873"
and under that stamped ""2870 A"
Please look at the attached pic.
Is this right?

 

i have v1468 and 2370c etched on mine. i am still waiting to find out if mine is the right cam.

 

I'll check into both of these Monday. I didn't have time to check today for yours, Andrew.

Jason

 

Thanks , I appreciate any help

 

I've been wondering the same thing about the cam that I bought.

I've seen pictures of Thunderracing Cams, and some of the actually have TR230... blah blah blah.. whatever the first number is.

I was a bit worried about the one that I bought because it didn't have that.

It's almost like yours.. It has a stamped number and then an etched number.

The cam should be a TR230/224 .575/.563 LSA 111...

 

Depending on when the TR cam was purchased, it may have different "styles" of engraving on the backside of the cam. The earlier versions had just an engraved serial # (ex. UF5466, B4533,etc.) and another stamped core number. The later versions had the same engravings as the earlier versions, but an engraved part # was included (ex. TR224-12, TR224-14,etc.).

Jason

 

Thanks for the explanation....

 

No problem! If you anyone purchases a TR cam used and wished to verify it is indeed a TR grind, just email me the serial # on the backside and I'll get look it up in the Cam Pro Plus computer at work.

 

thanks Jason, we really appericiate it.

 

that is great information, thank you!
I wonder though..wouldn't the stamped core number be like say, the advertised duration/h for hydrualic or something? Or just a plain old "2870 A" means the cam started from a "2870 A" piece of stock before being ground to specs identified by the hand engraved serial number?

Either way - you'll be able to hook us up Monday from the computer?
That's AWESOME man - really nice of you to offer

 

Correct, the "2870A" is just the core # and has nothing to do with the actual specs of the cam.

I'll get the info for everyone Monday.

 

Any luck getting those numbers checked out?

I'm pretty curious and wanted to keep this thread up top
thanks

 

OK, here is the info everyone was looking for:

OB8417: originally doctored on 4/15/02, TR224/112, 224.3/224.1 .564/.563 111.6 lsa

OB9824: orginally doctored on 5/6/02, TR224/114, 224.0/224.1 .562/.562 113.5 lsa

T5873: orginally doctored on 10/19/02, TR224/112, 224.3/224.1 .563/.563 111.8 lsa

UD1078: originally doctored on 3/6/02, TR230/111, 230.5/224.6 .575/.561 111.0 lsa

V1468: not found in the computer; there was a V1486, so I don't know if you mixed up the last two digits.

There were the cam IDs that people posted here or that sent me their info via a PM. If anyone needs another one checked, please let me know.

Jason

 

do u know what the specs where for the V1486?

 

No, I can't recall off-hand. I'll check tomorrow for you.

 

thanks, ill double check later when i get home tonight. i think somebody said that might be a comp cam number, i hope not. if those are the right numbers and it just isnt a TR cam where could i get the specs checked out? is there a machine that can get the specs for me?

Thanks

Tripp

 

Tripp, you can send the cam to Thunder and we can doctor it on our cam doctor. This will let you know exactly what the specs are. We charge $25.00 plus shipping.

 

Mine was pretty straight forward...

 

i just got home and double checked it. i had it written right everywhere but here.

V 1486

 

you the man!!!
these are on a +4 intake centerline, correct?