Y-pipe question.
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Launching!
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Y-pipe question. I was wondering if a Y-pipe is restrictive for an LS1 with around 400hp to the crank? That's around the hp I want in my camaro. I was thinking about going with a bigger y-pipe. I know true duals is the way to go but I heard true duals can be a pain to get over the axle like the y-pipe from the factory is. Would rather not have to the pipes go under the axle because I plan to lower my car as well. Appreciate any tips.
Blake
Blake
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Launching!
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Okay good. My plan was to have my friend make some pipe for me. Was thinking of getting a bigger exhaust to help with flow when I buy a set of headers. Unless the stock y-pipe will have good enough flow for the headers?
One doesn't reuse the factory y-pipe for any performance function -- plus you can't use the factory y-pipe with headers. Get yourself a TSP or Speed Engineering y-pipe that has the nice merge and mandrel bends.
Long tube headers with a 3" y pipe to flowmaster y with either 3.5 or 4" single all the way back is the best in my opinion. Have the y and exhaust made at the local exhaust shop and it will fit better than an off the shelf one usually.
TECH Fanatic
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X2, I see allot of people either have Y pipes made at regular exhaust shop or they make their own and they never have a good merge or mandrel bends. Its worth the money to buy a quality piece.
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Theres nothing wrong with regular mild steel exhaust tubing. I think a nice merge collector on the y pipe and with 4" tubing in the single section has the most function for a low price. You could buy headers and have the rest made all for under 1000.
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I was wondering if a Y-pipe is restrictive for an LS1 with around 400hp to the crank? That's around the hp I want in my camaro. I was thinking about going with a bigger y-pipe. I know true duals is the way to go but I heard true duals can be a pain to get over the axle like the y-pipe from the factory is. Would rather not have to the pipes go under the axle because I plan to lower my car as well. Appreciate any tips.
Blake
Blake
So a Y-pipe with 2.5" inlets and a 3" y-merger outlet is fine, just make it has a good merger on it.
For 340 whp don't even bother with long tube tube headers. Do a cheatr like cam. What year is your camaro? If you have an earlier camaro there is a restriction in the factory y pipe that is easily seen and can be cut out fixed. All you need for 340 whp is a straight through catback or cutout, lid, underdrive crank pulley,cheatr like cam and tune. The factory heads, exhaust manifolds with cats and even ls1 intake should be fine for that.
This should get you there:
Go with a SLP lid, ported TB w/coolant tube bypass, LS6 or BBK intake manifold, powerbond 25% UD crank pulley, BBK headers and Y-pipe, and a cat-back exhaust of your choice (NO Flowmaster), finally have the car tuned.
You could go with 1-7/8" headers and a FAST intake manifold, but that'll cost you probably 1k more.
Go with a SLP lid, ported TB w/coolant tube bypass, LS6 or BBK intake manifold, powerbond 25% UD crank pulley, BBK headers and Y-pipe, and a cat-back exhaust of your choice (NO Flowmaster), finally have the car tuned.
You could go with 1-7/8" headers and a FAST intake manifold, but that'll cost you probably 1k more.
Thread Starter
Launching!
Joined: Aug 2013
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For 340 whp don't even bother with long tube tube headers. Do a cheatr like cam. What year is your camaro? If you have an earlier camaro there is a restriction in the factory y pipe that is easily seen and can be cut out fixed. All you need for 340 whp is a straight through catback or cutout, lid, underdrive crank pulley,cheatr like cam and tune. The factory heads, exhaust manifolds with cats and even ls1 intake should be fine for that.
Thread Starter
Launching!
Joined: Aug 2013
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This should get you there:
Go with a SLP lid, ported TB w/coolant tube bypass, LS6 or BBK intake manifold, powerbond 25% UD crank pulley, BBK headers and Y-pipe, and a cat-back exhaust of your choice (NO Flowmaster), finally have the car tuned.
You could go with 1-7/8" headers and a FAST intake manifold, but that'll cost you probably 1k more.
Go with a SLP lid, ported TB w/coolant tube bypass, LS6 or BBK intake manifold, powerbond 25% UD crank pulley, BBK headers and Y-pipe, and a cat-back exhaust of your choice (NO Flowmaster), finally have the car tuned.
You could go with 1-7/8" headers and a FAST intake manifold, but that'll cost you probably 1k more.
If you have emissions you need to be smart about the mods and stay stealth. The mods I recommended in my previous post will stay emissions legal and stealth and get you to where you want. Get a tune after the cam so you only do it once.
Thread Starter
Launching!
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Sounds dumb, but I have no idea. My father takes my cars to his friend to get inspected. He also does my vettes inspections as well. From what my father told me it would flunk if I started modding, he said he hooks it to a computer. I'll have to check in on that.
My camaro actually flunked because of tinted side windows. He asked to have them rolled down so I'd pass.
My camaro actually flunked because of tinted side windows. He asked to have them rolled down so I'd pass.
Thread Starter
Launching!
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How much would you think a shop charge me for a cam installation? Because I know nothing about the ls1 engine's design. What cam would you recommend?
i'd highly recommend doing the cam swap yourself if your mechanically inclined to do so. I'd hate to think what a shop would charge to do it for you.
When i did my first cam swap, i pulled up a write-up on how to do it, took my laptop out to the garage, and followed it step by step and it turned out perfect. so even if your not experienced, it can still be done!
When i did my first cam swap, i pulled up a write-up on how to do it, took my laptop out to the garage, and followed it step by step and it turned out perfect. so even if your not experienced, it can still be done!
Thread Starter
Launching!
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i'd highly recommend doing the cam swap yourself if your mechanically inclined to do so. I'd hate to think what a shop would charge to do it for you.
When i did my first cam swap, i pulled up a write-up on how to do it, took my laptop out to the garage, and followed it step by step and it turned out perfect. so even if your not experienced, it can still be done!
When i did my first cam swap, i pulled up a write-up on how to do it, took my laptop out to the garage, and followed it step by step and it turned out perfect. so even if your not experienced, it can still be done!
but if it is a similar process to a sbc, I'll give it a shot. I thought these engines would be complicated lol. Thunder Racing which is out of business made 3 different cheatr cams. You can look up the specs on google and just order it as a custom cam with the specs or lots of sponsors have their own version of what should be used with stock manifolds, cats and stay emissions legal. The intake duration should have 219 intake duration or less with a decent split and on the more technical side a valve overlap of around -5 to -8 and IVC around 42. Shops likes Texas-speed sell a package where you can order everything you need to swap the cam.