12a to 13bt Adapter Manifold
#1
vrrmmmmm
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12a to 13bt Adapter Manifold
To get my 2nd gen manifold mounted I am going to use the 2 RB exhaust flanges and get a pipe welded between them to make it an adpater.
I was just wondering what type of pipe I should be using, and the length of the pipe between the two flanges.
I am going to be using the stock carb.
I was just wondering what type of pipe I should be using, and the length of the pipe between the two flanges.
I am going to be using the stock carb.
#2
blown up motors
iTrader: (1)
well its a good idea..the reason i know this is its been done you also have to cut your pipes at a little bit of a angle to move the turbo to the front more 2 1/4 pipe is what you need to use i beleave...(we are talking about the 13b turbo manifold on a 12a right?).... do a search on it you should find the thread it was a few months back good luck
cheers PaTricK
cheers PaTricK
#6
Old Fart Young at Heart
iTrader: (6)
2-1/4" pipe is too big, since the exhaust ports, with sleeves are only 1-1/2" on a 12A. Buy a couple of feet of schedule 80/120 mild steel pipe with an 1-1/2" id. The id of the TII exhaust mani is 1-3/4" By using the 1-1/2" id bridge pipe you will keep the exhaust velocities up. The turbo does not need to be moved forward unless you want too. You need to clear the carb as much as possible and keep the 2 pipe lengths equal.
If you were to go with 2-1/4" diameter pipe, you would lose exhaust flow due to it's size and create turbulence when it narrows down for the 13B flange. 2-1/2 to 2-3/4" pipe would be a good size for the downpipe coming off the turbo.
PaTrick, if you are going to post bad advice, at least spell check.
If you were to go with 2-1/4" diameter pipe, you would lose exhaust flow due to it's size and create turbulence when it narrows down for the 13B flange. 2-1/2 to 2-3/4" pipe would be a good size for the downpipe coming off the turbo.
PaTrick, if you are going to post bad advice, at least spell check.
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#8
blown up motors
iTrader: (1)
here is the link to the how to click me i will tell you how to build this
also he used 2.25 or 2 1/4 piping cut at an angle to get the turbo away from the idler arm woot
i might not type to well but i remember cars good
cheers PaTricK
also he used 2.25 or 2 1/4 piping cut at an angle to get the turbo away from the idler arm woot
i might not type to well but i remember cars good
cheers PaTricK
#11
vrrmmmmm
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Originally Posted by trochoid
Nice job on the search, forgot I posted in that thread. Still need to keep the runners about the same cross-sectional diameter as the exhaust ports to maintain the highest possible velocity, without causing a restriction. Turbo will spool quicker.
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