racingbeat header
#1
racingbeat header
Anyone know the measurement of the collector on a 13b SE header. Need to know so I can order the right size y pipe off the header. Car is stored under a cover and passenger side against the house and it would be almost impossible to get under and measure until I pull the car out in the spring.
#3
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I'm not really following what you're looking for. Are you looking for the length of the actual stock exhaust manifold from the engine? What do you mean by collector, do you mean the mounting flange where the manifold bolts to the precats?
And, why do you need a Y pipe when the cars run a single exhaust pipe?
And, why do you need a Y pipe when the cars run a single exhaust pipe?
#4
I'm not really following what you're looking for. Are you looking for the length of the actual stock exhaust manifold from the engine? What do you mean by collector, do you mean the mounting flange where the manifold bolts to the precats?
And, why do you need a Y pipe when the cars run a single exhaust pipe?
And, why do you need a Y pipe when the cars run a single exhaust pipe?
#5
I need to know the "diameter" of the collector at the end of the header. I feel i am losing 20+ hp from my bridgeport due to the restrictions in my exhaust. i run a magnaflow and 2 presilencers so I don't go deaf driving the car. Was fine for my streetport, but I wanna free up some flow for race days. This is what I am installing http://www.quicktimeperformance.com/QTEC/index.php
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Its not called a "collector," I believe you mean a Presilencer. I have one on my FB and I believe the inside diameter is the same as the header- 1 7/8in.
You shouldn't need a y pipe b/c the headers run into one pipe already...
At least mine do
Good luck
~andrew
You shouldn't need a y pipe b/c the headers run into one pipe already...
At least mine do
Good luck
~andrew
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#11
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Thats really cool.
I've seen people on t.v. do that setup on a Ford Lightning and dude, it was cool.
How much do you think its gonna cost you??
what state do u reside??
I've seen people on t.v. do that setup on a Ford Lightning and dude, it was cool.
How much do you think its gonna cost you??
what state do u reside??
#15
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I remember seeing a manual cast iron cut out in a catalog, can't think of the name of it right now (ADD), they have all kinds of crap for cars and trucks, ah,..
JC Whittney. It wasn't too pricey.
Edit; 2" ID for 2" OD pipe to fit inside I reckon.
#19
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I took quite a few measurements this past weekend with my digital caliper and got 1.76" average ID of the collector. The header I had measured from was a four port 13b 84-85 model. The SE presilencer had a bit bigger ID, but the gasket it came with was even smaller than the collector. ? I don't know why, but it sticks inside the flow path almost 1/16" all the way around. I also noticed that the collector end of the header could use a bit of work cleaning it up. The welds at the flange inside the primaries are smoothed out before being shipped from RB, but the collector isn't. You might be able to pick up a bit more flow by taking a die grinder to them...
I also measured the ID of an RB 13b flange and the OD of some 1.5" sch. 40 pipe and weld ells, and they're almost a perfect match. I can't wait to start building my turbo manifold...The 1.5" sch. 40 pipe is actually an average of 1.6" ID, so I think that'll work out good with my torque goals for this project...
If I were you, I'd probably use at least a 2" ID pipe leading to your cut-out. You might be able to find additional gains by using a mega-phone style pipe from the collector to expand the ID out to 2.25 or even 2.5" ID before the cut-out. Of course, then you'd want to match the rest of the exhaust system with it and would require all new components, but it may work out better for you with the additional flow of your bridge-ported engine...Just a thought...
I also measured the ID of an RB 13b flange and the OD of some 1.5" sch. 40 pipe and weld ells, and they're almost a perfect match. I can't wait to start building my turbo manifold...The 1.5" sch. 40 pipe is actually an average of 1.6" ID, so I think that'll work out good with my torque goals for this project...
If I were you, I'd probably use at least a 2" ID pipe leading to your cut-out. You might be able to find additional gains by using a mega-phone style pipe from the collector to expand the ID out to 2.25 or even 2.5" ID before the cut-out. Of course, then you'd want to match the rest of the exhaust system with it and would require all new components, but it may work out better for you with the additional flow of your bridge-ported engine...Just a thought...
#20
If I were you, I'd probably use at least a 2" ID pipe leading to your cut-out. You might be able to find additional gains by using a mega-phone style pipe from the collector to expand the ID out to 2.25 or even 2.5" ID before the cut-out. Of course, then you'd want to match the rest of the exhaust system with it and would require all new components, but it may work out better for you with the additional flow of your bridge-ported engine...Just a thought...
#22
Presilincer and collector are 2 completly different things, the presilincer is for the noise, the collector is to convert the 2 pipes header into 1 pipe to run back to the muffler.
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