Irwin inlet ID's

[Slideblues]

Last time I checked fer roundness I got slapped :lol:

Well cuse me!!!!!

 

[james irwin]

:lol: HEY HEY , MAN IT LOOKS LIKE IT WILL FINNALY LET ME ON??

OK GUYS AND GALS . HERE IS THE SCOOP ON THE DIFFERANT SIZE INLET HEADERS . I READ WHERE ONE OF YOU STATED YOU HAD A 21 WITH A 3/4 INLET ? NOT TO MY KNOLEDGE HAS THERE EVER BEEN ONE RELEASED OUT OF HERE WITH A INLET OF THAT DIA. BETTER CHECK THE PIPE AS IT HAS TO BE A 45 . NOW BACK TO THE 21. INLET CONES ARE 14 DEG, INCL.ANGLE. REAR CONES 28 DEG. INCL. ANGLE , POWER BAND WILL VARY ( BECAUSE OF DIFFERANCE IN SPINNING FIXTURS) BUT , THEY ARE ALL THE SAME ON THE INSIDE WHERE IT COUNTS .21/3/4 POWER BAND , 45 1 INCH POWER BAND . WHAT I AM QOUTING HERE IS THE NEW PRO Q SERIES , NOT THE OLD NITRO PIPES ,( TO TRY AND COMPARE THE TWO IS LIKE TRYING TO SAY YOUR APPLES ARE LIKE BANANAS ) NOW , THE INLET HEADERS . YES THERE ARE TWO DIFFRENT SIZES OUT THERE . WE FOUND AT THE LAST TESTING THAT THE OLD K&Bs REACTED QUIT WELL TO THE 1/2 ID HEADER WE SENT ALOT OF THEM OUT TELLING EVERY ONE ABOUT WHAT WE FOUND , NO RESPONCE FROM ANY ONE ??? SO WE FIGGURED TO LEAVE WELL ENOUGH ALONE,AS WE HAD THEM RIGHT. WRONG , NOW ALL OF A SUDDEN NO LIKES THEM ,? WE HAVE REPLACED A LOT OF THEM . NOW ABOUT THE DIFFERENT SIZE CONES ??, AND CONE LENGHT. ALL OUR PIPES ARE CUT TO LENGHT ON FIXTURES . WE ALSO BUILD TO CUSTOMERS REQUEST. AND SOME ONE WILL GET ONE OF THESE AND THEN SWEAR UP AND DOWN I HAD PUT IT ON THE MARKET , NO WAY . HOPE THIS HELPS THE SITUATION WITH EVERY ONE ,, GOD BLESS JAMES IRWIN PS. IF YOU FIND A PROBLEM ? ITS ALWAYS BETTER TO ASK THE BUILDER THATN THE RACER .

 

[SteveHauge]

Thanks for the clarification Jim. I compared my NEW Pro quiet pipe you just sent me to an older Pro Quiet pipe with the small header. Other than the obvious header change, it was also longer from the header weld to the end of the pipe (total length). Was there a change from the older K&B Pro quiet pipes to the new Mac/NR Pro Quiet pipes in the center section length ??

P.S. I have not had a chance to run the new pipe yet but will be running it this weekend.

Thanks again for the updated product.

 

[Slideblues]

Jim, I asked the original question cause I had not run one with the 1/2" inlet before,

Thank you for the info,

Gene

 

[james irwin]

B) O YES , THERE IS ONE THING I FORGOT TO MENTION: LOOK ON THE INSIDE OF THE EXHAUST TUBE ON THE MOTOR , YOU WILL FIND A MAJOR RESTRICTION IN THERE , I HAVE NO IDEA WHY THEY DO THIS ? UNLESS THEY HAVE A BUNCH OF INVENTORY (CASES) THEY WANTO USE . TTHEY REALLY NEED TO OPEN THAT AREA UP , (MAKE IT LARGER IN ID.) , WE HAVE OPEND THEM UP AND REMOVED ALL WE FEEL WE COULD WITH OUT HAVING THE NIPPLE FRACTURE AND BREAK OFF . IT HELPS MAN THIS GOING TO BE REAL HARD TO TELL YOU ALL THIS ONE , I SOLD MY COMPANY LAST WEEK , BUT I AM GOING TO STAY ON AS A CONSUTANT / ENGINEER . 52 YRS IN THE BUISNESS THIS YR , I STILL CANT BELEIE I HAVE BEEN HERE THIS LONG . IMPBA # 459 THE ONLY ONE LEFT FROM THE ORIGANLS OTHER THAN ME IS TOM PREZENKA ( OCTURA MODELS ) MY HELTH DEMANDS I SLOW DOWN A LITTLE , MY WIFE GIGGLES WHEN SHE HERES ME SAY THAT . I AM STILL TRYING TO GET THE MOTORS IN FOR THE OUTBOARD CLASES, I HAVE LOWER UNITS READY . AND NO MOTORS , O WELL THATS ANOUTHER STORY . SEE YA AT THE RACES GOD BLESS JAMES IRWIN

I WANT TO THANK EVEY ONE FOR THERE GENEROSITY AND FOR BEING SO NICE , YOU ALL ARE GREAT PEOPLE . THANK YOU ALL FOR EVERY THING

 

[james irwin]

O YES , HIS NAME ?? MR, ROD DETRICH HE HAS BEEN WITH ME FOR APPROX. 15 YRS AS A RACER , MOST OF YOU REMEMBER HIS SON ( CHARLIE ) ISNT THAT RIGHT ROD GERATHY . IT ISNT SAFE WHEN THESE TWO GET TOGETHER HE HE ( CHARLIE AND GERATHY) :lol:

 

[Geraghty]

Charlie and I had some of the greatest water fights in recorded history.

When it is 100 degrees out , ice water fights are a blessing.

You never can tell Charlie.................there might be a re-match someday.

It might take a week........a month..........maybe a year.........just don't ever sleep again.

 

[Bob Kensill]

Rod

You won't recognize Charlie,he has grown like a weed and cut off all his hair.