Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe?
04-09-2004, 10:59 AM
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Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe?
Noticing most t3t4 57trim 63ar...
The Diameter are..
COLD SIDE
2 1/2" intake
2" out
HOT SIDE
2 1/4" exhaust out..
-------------------------------------------------------
And was curious about the downpipe, how is it possible to run a 3 inch downpipe, when the flange is a 2 1/4" in diameter? The hole. Should i bore out the diameter, or just leave it like that, and just weld a 3inch piping to the 2 1/4" flange hole?
------------------------- Since my exhaust setup is from resonator back to muffler, is 3inch diameter.
Or had anyone got results and dyno #s from a 2 1/2" down ....inducer/reducer to a 3"? after the AC back? Thanks.......!
WHAT SHOULD I DO@!!! HELP!!
The Diameter are..
COLD SIDE
2 1/2" intake
2" out
HOT SIDE
2 1/4" exhaust out..
-------------------------------------------------------
And was curious about the downpipe, how is it possible to run a 3 inch downpipe, when the flange is a 2 1/4" in diameter? The hole. Should i bore out the diameter, or just leave it like that, and just weld a 3inch piping to the 2 1/4" flange hole?
------------------------- Since my exhaust setup is from resonator back to muffler, is 3inch diameter.
Or had anyone got results and dyno #s from a 2 1/2" down ....inducer/reducer to a 3"? after the AC back? Thanks.......!
WHAT SHOULD I DO@!!! HELP!!
04-09-2004, 01:12 PM
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (bgsxyguy)
yea i have noticed this as well a lot of turbos the exhaust hole is not 3 in. so why do people run a 3 in down pipe on a turbo that doesnt have a 3 in port in the exhaust
04-09-2004, 01:19 PM
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (nextelbuddy)
Because Exhaust gases expand and will not back up if theres room to grow...
04-09-2004, 01:31 PM
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (Sunrise City
do like i did on mine, 2.5 90 degree bend down flare to a 3 inch 
04-09-2004, 08:37 PM
#7
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (Sunrise City
Thats how i made my downpipe. I picked up a 2.5" -> 3" machined flair from
atpturbo.com. Looks just like the one posted above, except its a 4-bolt. Very
happy with the way it turned out.
Since i have a 4-bolt exhaust housing, there was very little room to bolt the downpipe
on after welding the flair, vband and flange together. I just used some big allen
bolts instead of studs/nuts. Came out beautiful.
atpturbo.com. Looks just like the one posted above, except its a 4-bolt. Very
happy with the way it turned out.
Since i have a 4-bolt exhaust housing, there was very little room to bolt the downpipe
on after welding the flair, vband and flange together. I just used some big allen
bolts instead of studs/nuts. Came out beautiful.
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04-09-2004, 10:54 PM
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (Sunrise City
hmm, any more information about this v band convertor? I really have no idea how that v band style works. - Sound interesting to do.
Sound interesting to do.
04-10-2004, 09:48 AM
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Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (Sunrise City
Wonder if theres any significant difference, compared from a:
Fully 3" downpipe
and
2.5" flared to 3" downpipe.
Anyone know?
Thanks.
Fully 3" downpipe
and
2.5" flared to 3" downpipe.
Anyone know?
Thanks.
04-10-2004, 12:23 PM
#11
Re: Turbonetic t3 to4e - 2 1/4 inch exhaust side. What should I do for a 3" downpipe? (Sunrise City
Is it a flare out to 3" or just a straight jump? It looks like there's no taper on that vband adapter.
Or is causing turbulence at the exhaust housing exit a nonissue? I doubt flow is very smooth there anyway... anyone have thoughts?
Or is causing turbulence at the exhaust housing exit a nonissue? I doubt flow is very smooth there anyway... anyone have thoughts?
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