Got bored today - Page 4

XJ4oh · 02-21-2007, 11:49 PM

I just kind of scanned through this...

You guys are saying you did this with a sanding drum attatched to a drill? And just opening it up to 60mm correct?

955speedCh · 02-22-2007, 12:26 AM

yes. but has anyone bored the whole thing out to 62mm and made a new butterfly? or will this be overkill on a stock motor?

**Arcticcat843** · 02-22-2007, 06:04 AM

XJ40h: Yes and Yes or if you can find someone with a metal lathe that is probaly better.

955speedch: ive never seen anyone do that before, i know you can buy them that way. After taking everything apart, i see how easy it would be to make a new butterfly. You can also buy 62mm buterflys from a place called xj arrmor (google it)
I think it is overkill on a stock engine, but if you have some bolt on mods (muffler, cold air intake) then it is better than the 60

955speedCh · 02-22-2007, 11:29 AM

yeah i have a muffler and cone filter etc. and i have access to a machine shop here at school

so i might try it out

jeeptorino68 · 02-22-2007, 11:31 AM

what do you guys think works better with the drill press, flap wheel or sanding drum? also how do you center the Tb under the press, or does it "self center" due to the close size of the sanding wheel compared to the TB

**alexrule123** · 02-22-2007, 11:37 AM

Quote:

Originally Posted by jeeptorino68

what do you guys think works better with the drill press, flap wheel or sanding drum? also how do you center the Tb under the press, or does it "self center" due to the close size of the sanding wheel compared to the TB

easy..you eyeball it

i would say a flap wheel would be faster, but i can do one in under 15 min with the sanding drum, that is factoring the time needed for the throttle body to cool between sandings.

jeeptorino68 · 02-22-2007, 01:31 PM

i read i think on here that someone cut every other flap off of thier flap wheel? why is that doe sit sadn smoother that way? how long shoudl i sand before letting it sit to cool off?

do you guys think i shoudl get a spare Tb from the JY first? and then if all goes well i can jsut sell my stock one or something
thanks

mrnobody_01 · 02-22-2007, 02:12 PM

jeeptorino68,
yeah, I found the wheel and actually had to cut out more than everyother-cut 2 leave 1 cut 2 etc. The reason was that the the smaller dia. portion of the TB is 54 ish mm's which computes to aprox 2.2 inches. And since I was using a 3in flap wheel I needed to lose that extra dia. yet still have the sanding power. In short, it was to be able to fit the wheel into the TB. Even then it was tuff. If you have one, you could use a piston ring compressor but youd need a POWERFUL drill press and tighten down the chuck really tight. I tried the drum later and -for me- it was a little harder to get the walls smoother and even with the upper area.
Kirt

jeeptorino68 · 02-22-2007, 04:19 PM

cool thanks for the info, so you think if i used a flap wehel closer to 2 inch dia. i will have to cut fewer if any out of the wheel? the flap wheel route sounds like it willbe the easiest. im trying to keep things cheap so this sounds like just the ticket.

speaking of which has anyones mileage gone down since boring the TB? or do you guys alway shave ur foot in the gas now haha

mrnobody_01 · 02-22-2007, 07:36 PM

If you went with a smaller wheel don't go below 2.5in. The flaps wear-out fast and you need alot of surface area to do the sanding. I couldn't find any smaller than 3 but bigger than 1.5
Kirt

XJ4oh · 02-22-2007, 09:33 PM

Interesting. So its a 2" sanding drum for 60mm?

GrayBomb · 02-22-2007, 10:17 PM

Quote:

Originally Posted by XJ4oh

Interesting. So its a 2" sanding drum for 60mm?

thats what i used it worked out nice any larger wouldnt fit

bigjohnson69 · 02-25-2007, 08:18 PM

so, could I turn a throttle body on a lathe to 62 mm if I got a new throttle plate?

**alexrule123** · 02-25-2007, 08:26 PM

Quote:

Originally Posted by bigjohnson69

so, could I turn a throttle body on a lathe to 62 mm if I got a new throttle plate?

yes you can

02-22-2007, 02:12 PM	#53
mrnobody_01 Registered User Join Date: Nov 2006 Location: Washington Posts: 44 Profile Gallery Classifieds My Jeeps	jeeptorino68, yeah, I found the wheel and actually had to cut out more than everyother-cut 2 leave 1 cut 2 etc. The reason was that the the smaller dia. portion of the TB is 54 ish mm's which computes to aprox 2.2 inches. And since I was using a 3in flap wheel I needed to lose that extra dia. yet still have the sanding power. In short, it was to be able to fit the wheel into the TB. Even then it was tuff. If you have one, you could use a piston ring compressor but youd need a POWERFUL drill press and tighten down the chuck really tight. I tried the drum later and -for me- it was a little harder to get the walls smoother and even with the upper area. Kirt __________________ "Cogito Ergo Zoom" I Think Therefor I Go Fast" '95 XJ 2-Dr Stoker soon-to-be Stroker, suspension sags on drivers side for faster left turns, current body armor is mud which protects against harmful paint destroying UV.

02-22-2007, 07:36 PM	#55
mrnobody_01 Registered User Join Date: Nov 2006 Location: Washington Posts: 44 Profile Gallery Classifieds My Jeeps	If you went with a smaller wheel don't go below 2.5in. The flaps wear-out fast and you need alot of surface area to do the sanding. I couldn't find any smaller than 3 but bigger than 1.5 Kirt __________________ "Cogito Ergo Zoom" I Think Therefor I Go Fast" '95 XJ 2-Dr Stoker soon-to-be Stroker, suspension sags on drivers side for faster left turns, current body armor is mud which protects against harmful paint destroying UV.

02-25-2007, 08:18 PM	#58
bigjohnson69 Registered User Join Date: Mar 2006 Location: Clarkston, Washington Posts: 288 Profile Gallery Classifieds My Jeeps	so, could I turn a throttle body on a lathe to 62 mm if I got a new throttle plate? __________________ White 1995 Jeep XJ 4.0HO 5-speed 3" HD OME Lift 31x10.5R15 BFG Rugged Trail T/A's On 15x7 Ansen Sprints - Summer 30x9.5R15 804 Studed Traction Tires on Stock Wheels - Winter Dual Outlet Flowmaster Super 40