NEED HELP JETTING A BENDER TURBO

[turbine man]

I HAVE A BENDER TURBO 2560R ON A STROKER 05 VECTOR FINALLY PUT A O2 GUAGE ON IT. RUNS IN THE 12S 30 TO 40 MILES PER HR, WHEN I GET INTO THE TURBO IT DROP DOWN INTO THE HIGH 9S. PEDO JET IS AT 370 , HAVE NEVER HAD THE CARBS APART TO CHECKTHE JETTING. EXHAUST PIPE IS ALLWAYS LIGHT BROWN WHEN TRAILING RIDING IT, FIGURED I AM NOT MAKING PEAK HP RUNNING ON THE TURBO. ANY HELP WOULD BE THANKFULL JEFF

 

[BigDog05]

Do you mean WOT when you say get into the turbo. If WOT, I would put in a bigger pitot jet. Most agree it takes 50-100 changes in pitot jet to see a difference on A/F gauge. Try a 420-430 and keep increasing until you get high 11's, very low 12's depending on how much boost you are running.

 

[turbine man]

turbo

YHANKS I NORMALLY RUN 10 LBS IF I HAVE BETTER FUEL IN IT I WILL RUN 18# I WILL TRY A LARGER PETO JET FIRST. ONE OTHE QUESTION MY TURBO WILL NOT MAKE MAJOR BOOST UNTIL IT IS REALLY WARMED UP , TAKES SEVERAL PASSES THEN ALL OF A SUDDEN IT MAKES MORE BOOST WITH OUT CHANGING ANYTHING.

 

[mbarryracing]

Re: turbo

YHANKS I NORMALLY RUN 10 LBS IF I HAVE BETTER FUEL IN IT I WILL RUN 18# I WILL TRY A LARGER PETO JET FIRST. ONE OTHE QUESTION MY TURBO WILL NOT MAKE MAJOR BOOST UNTIL IT IS REALLY WARMED UP , TAKES SEVERAL PASSES THEN ALL OF A SUDDEN IT MAKES MORE BOOST WITH OUT CHANGING ANYTHING.

Could be an exhaust leak that is closing up when gets hot...

 

[turbine man]

TURBO

SO YOU ARE SAYING IT SEALS UP WHEN ITS HOT LETTING THE TURBO TURN FASTER MAKING MORE BOOST. SOMETIMES IT MAY BE 10/15 MINUTES BEFORE IT WOULD MAKE HIGH BOOST.

 

[turbine man]

TURBO

SO YOU ARE SAYING IT SEALS UP WHEN ITS HOT LETTING THE TURBO TURN FASTER MAKING MORE BOOST. SOMETIMES IT MAY BE 10/15 MINUTES BEFORE IT WOULD MAKE HIGH BOOST.

 

[rxrider]

turbine man - please turn off CAPS LOCK on your computer, hard to read in upper case letters.

sincerely
rxrider
TY Management

 

[turbine man]

turbo

just tried a 450 jet in the pedto tube had a 370 in it, a/f guage now reads a touch over 10, do i keep going to try to reach 11.9. 12lbs boost 93fuel with a splash of 110. wot will this change my trail riding a/f reading thanks jeff

 

[givemeaboost]

I'd go another 200 on the pitot jet. Ken...

 

[turbine man]

turbo

thanks will give it a try