Search results

  1. Jack

    snap on tools

    Snap-on has been screwing their truck distributors for years and their tool quality has dropped, most likely made in China like everything else.
  2. Jack

    Gary,Jim, Mailman, and other members please accept my apologies

    Years ago I was given a flow data sheet of one particular head that some considered the holy grail XS head but not me because no one head fits all applications despite what some think and Shell Theut(SP) knew that also. Max flow came in at 181+CFMs at 500 lift I believe and exhaust came in...
  3. Jack

    Gary,Jim, Mailman, and other members please accept my apologies

    I just want to make it clear, that I'm not upset with anyone for anything. When Bluz mention that his calibrations were off,a bell went off knowing that no two benches could possibly be this far off in CFMs, it is just impossible to have one bench so far out of calibration and I'm just totally...
  4. Jack

    Gary,Jim, Mailman, and other members please accept my apologies

    It has been brought to my attention, which could have been done privately but it wasn't, that my porting numbers were off which I truly had no idea they were inflated. When I first started my porting adventure I searched the web for a porter to flow my work and I found a guy who became a very...
  5. Jack

    Changing Intake ports to a D shape for better flow.

    BluzPlayer,don't do any bowl work just yet but proceed with the rest,I need to re-read that porting thread and recheck my notes on how I worked them.
  6. Jack

    Changing Intake ports to a D shape for better flow.

    Enjoy and have fun.
  7. Jack

    Changing Intake ports to a D shape for better flow.

    I'll be watching this thread, just follow what's written in the D thread as closely as you can or post or Pm me a question. This port when done right will pull hard down low to the cams max RPM range. It's the ideal street port for the xs small stroke and limited small cam lifts. On the...
  8. Jack

    Project 100hp rephased 880

    I hope you realize I was just teasing you!
  9. Jack

    Changing Intake ports to a D shape for better flow.

    Saw that you PMd me but somehow I lost those messages just the other day and want to assure you that I had no dealings with applying JB epoxy in those ports. That D port was half-assed and should have never been sold till that port was prepped correctly and epoxy applied professionally to...
  10. Jack

    Project 100hp rephased 880

    Some day when you get around to D porting that XS head, you'll be adding it to your valid list. When fully D ported and that head likes small port volumes to truly flex its flow and velocity muscle, you'll ask yourself why you waited so long to do it.
  11. Jack

    Project 100hp rephased 880

    Yes years ago I attempted raising the roof and floor of the XS intake port by 4mm but later on while flowing my welded-up closed chamber my good friend who has been porting for some 40 plus years and I discovered something trying to overcome shrouded losses of the welded up chamber. Pushed all...
  12. Jack

    Project 100hp rephased 880

    And a dyno sheet to prove what exactly? No peeps on my end, I've proved my point years ago , do you think you're the only one who's digested the XS 650 head for extra flow that yielded positive gains? And besides, I was making a friendly comment to have a conversation with Christian, not you, so...
  13. Jack

    Project 100hp rephased 880

    Back when I was experimenting with the XS head, decades ago,I was mig welding the cast chambers to a bathtub,slow process but it can be done without distorting the head or cap. Never occurred to me to braze em up:thumbsup:
  14. Jack

    Farewell to a dear friend (grizld1)

    I'm truly lost for words here, Dick was a good friend of mine and our last conversation was about porting and his upcoming surgery. Rest in Peace Dick, you brought a wealth of knowledge to this forum and I will truly miss BSing with you.
  15. Jack

    Ultra Rare !

    C-Clamp
  16. Jack

    Exhaust

    Go to 650central and go to resources,click on G-String. 3M was doing some testing on the mac reducing the collector size down to 1 3/4" I believe to reduce resonance in the system. Might wanna drop him an email for details. Years ago at the garage usa that a member modified his mac collector by...
  17. Jack

    Scam going around forums

    The scammers being scammed.
  18. Jack

    Piston skirt length

    Here's a very old article that Hod Rod magazine did building a long rod high compression chevy 350. Wish I had known about this build years ago.Almost the same rod ratio as the CR500 rods. The power from this build comes from the AFR heads IMO...
  19. Jack

    Piston skirt length

    This is just one of many threads on long rods on this forums. These are top notch engine builders. https://www.speed-talk.com/forum/viewtopic.php?f=1&t=36334&sid=bf4cae8a54384bbf7f0a4051f9523fda
  20. Jack

    Piston skirt length

    Installing longer rods moves the wrist pin higher up shortening the piston compression height and can lighten the piston,just depends. Yamaha used three different rod lengths with the 533 being the longest factory long rod but you also have the the Honda CR500 144mm rod and Kawasaki 145mm rod...
Back
Top