Stuart Chale

I posted a message with a few Ebay listings of BPA type stuff which was removed as it was against forum rules to "advertise" in the forum, for that I appologize.
Someone had mentioned that they thought the pipe was a model 700 and not a 650 (Hatori).

The box says 650 but that could be wrong as the original owner bought multiple Hatori pipes. Can the person who mentioned this (or anyone else) tell me the difference between the 650 and 700 pipes? I do not remember the Hatori 700.
Thanks,
Stuart

Atlanta 60

My Feedback: (18)

Overall length of the Hatori 650 pipe ought to be about 15.5"

Overall length of the Hatori 700 pipe should be about 17.00" (corrected from 18.75" from the Hanno pipe)

Singapore Hobbies description:
650 = TUNED PIPE 60L (LONG)
700 = TUNNED PIPE 10CC (SUPER LONG)

I don't have any 700's...But it should be a great pipe for the LS engines such as the OS 61 RF-P you have listed...

Either pipe should be Awesome...Not sure how this fellow could tell the difference between the 650 and 700 from the photo??

I believe your pipe is a little earlier generation...It's all smooth....I think the later pipes have a different appearance and the baffle welds are visible...

I have a 1987 Hatori catalog which shows your style (all smooth)...Then below is a photo of one of my Hatori 650 pipes which was purchased in the early/mid 90's...

I know of no performance difference between the "smooth" or "crude" versions...

edit: (Update)
Added a photo off an AD I found which actually lists the Hatori 700 closer to 17"...

Stuart Chale

I compared it to a used 650 and 601 that i have (from the 80's) and it is the 650 based on baffle position. I never had a 700.
Thanks,
Stuart

grcourtney

My Feedback: (1)

I was the one that made the comment, to my understanding the 650 had the three welds and the 700 was smooth like the one you posted. I was trying to clear up my confussion on the subject. I have two of each, two annodised red and two natural finish. I know the red ones were sold as part of the hanno package. I was told that smooth one was 700 in a discussion I had several months back with someone I consider to know what they were talking about. Both the smooth and the welded give the same performance as I have run them on a test stand with my os .61 rf-h motors. Any clarification on the evolution is appreciated.


gary

Atlanta 60

My Feedback: (18)

I've seen photos of the 601, 650, 700 and Hanno pipes in the "crude" (welds showing)...The baffle spacing is noticeably different between each of the pipes...I'll try to find those photos if I can and post them later...

edit:
Posted pic below...

To me the pipe length & baffle spacing is what differentiates the the pipes...I'm sure there are both smooth and crude pipes in all of them...I'm guessing a little but..I believe the smooth-vs-crude may have come as a vendor or manufacturing change at some point??

Like I mentioned above...My 1987 Hatori catalog shows the "smooth" version on the cover...Then all of my 401 and 650's are the crude version which were bought 1990 or later...