Boring Stock Carbs?

General forum on engines, transmissions, gearing and modifications to each

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vdrive
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Re: Boring Stock Carbs?

#16 Post by vdrive » Sat Jul 30, 2016 1:54 am

Hey BIG GUY , I have 1988 Tom Crawford hydro formed expansion chambers , rest is all bone stock , carbs have 195 main jet on all four carbs , runs awesome at sea level ........... 1985 RZ500

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Mike Cichetti
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Re: Boring Stock Carbs?

#17 Post by Mike Cichetti » Sat Jul 30, 2016 9:44 am

My first hot rod has bored stock carbs and Turfrey pipes. BJ did the porting and head work. Made 98.5 on the dyno with a nice power band. As good or better than my bike with 28 flat slides and similar work.

BigGuy
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Re: Boring Stock Carbs?

#18 Post by BigGuy » Sat Jul 30, 2016 2:20 pm

Thanks Mike, that sounds very encouraging! I'm sure the porting had alot to do with this. Thank you for confirming that this is indeed possible. I might be asking alot here but do you know how big he went? Where they bored offset from center? Also lnterested in any jetting info you might have? Sorry for all the questions and thank you for the reply
Shake "N" Bake!

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Mike Cichetti
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Re: Boring Stock Carbs?

#19 Post by Mike Cichetti » Sun Jul 31, 2016 9:47 am

No problem, 27.5mm and I don't think they were bored off center but I'm no sure.

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