Throttle Body bore size

[HOSS]

I am sending my throttle body out today. I know I am cause its here on my desk. But anyway. I want to go 58mm but am concerned about idle quality. Has anyone gone 58mm without an idle issue? How big can I go safely? 60?62? I ride in rough conditions and will not sacrifice idle quality nor durability. I am also using a stock ECU.

Thanks,

James Roos

[Green Hulk]

James, 56 is proven to provide good idle and better throttle response. I think if you went to 58mm you would be fine.

[HOSS]

Talked to Daniel and I`m going 56mm. Thanks Jerry, but I better stay at 56 till I get everything dialed in. I have my hands full with this ebay intercooler. Got the rear plugged and filled with water to test for leaks.

Jerry, are you staying with the stock ECU on your wife`s ski? And if so are you trying a 58mm or have you tried one on anything?

[novice_4]

how about the butterfly leaf in throttle body, do you modify it?

ps. if you have pics of throttlr body after mod plz post it :P
i'll do mine too... \/

[HOSS]

He stamps a new blade.

[1 FAST VE]

I will have my 58mm this week, and can post up some pics.

[HOSS]

So your the one he`s doin it for right now? Are you using a stock ECU? Cause I told him to give me 24hrs to think about 56 or 58.

[Kinchyle]

Do you have your A/F gauge goign Hoss ? Doesn't the TB boring cause your ski to run leaner ?

[HOSS]

lean makes power,,,,,,,and also heat. I cut the front of my ski open and inserted a 55 gallon drum for my intake. I`m going for MAXIMUM performance.

[HOSS]

Do you have your A/F gauge goign Hoss ? Doesn't the TB boring cause your ski to run leaner ?

In all seriousness Kanuck,,,I am worried about it. NO LIE! I have the gauges coming and will try stock injectors and stock ecu. If no worky I`m gonna have to dive in on injectors and if that won`t cut it ,,,,damn ecu.