ZUKIWORLD Online | Suzuki 4x4 Editorial and Forum
ZUKIWORLD Discussion Forum => Technical Discussion - Performance / Modify => Topic started by: smife on August 22, 2010, 07:26:27 AM
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I installed a snorkel 2 1/4 exhaust pipe. Then installed a Thorley header with no cat and generic flowmaster with 2 1/2 pipe all the way back. It seems like I lost power. Do I need to have a muffler on it to create some backpressure to get my power back? Oh yeah 1.6 16v
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Should put the size motor but yes the lack of back press can rob power
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2 inch for these engines, but you could try putting on a 1-3/4 or 2"
after your muffler and see if it creates a torque tube affect that they
are doing on the new trucks, the only problem might be I think they
are tuned lengths for the displacement of the engines.
This works like an expansion chamber on a 2 stroke motorcycle
Wild
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How is your snorkle filtered? through the airbox, or did you just put a filter on the end?
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Yes its filtered throught the airbox with a K&N Filter.
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got any pics of how you did the snorkel? is it a kit or did you make it?
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Here's one I made for my samy that's filtered through the original air box.
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Granted, My engine is turbocharged, but I also run a snorkle, through the airbox with a K+N filter, the downpipe from the turbo is 2.5 ", NO cat, and 2.5 " tubing through a turbo style muffler and out through a 2.5" tailpipe. Mine is no stump puller down low, but it sure didn't lose any power when I built the 2.5" system. Maybe 2.5" IS too big for a stock engine, your just not moving enough air to utilize that big of diameter. IMO, I'd probably go back to a 2" system all the way on a stock engine.
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Yeah I'm going back to 2". 2 1/2" is just too much for a stock engine.
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The turbo provides all the back pressure you need, so the better the exit
exhaust flow is the more potential for power.
Wild
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So maybe I should keep the exhaust and get a turbo!!! hahahah I think that may be a little over my head right now. All the broken and seized bolts are keeping me busy enough with my Calmini 3" install and widening mod. Unless someone has a complete turbo set up they would want to get rid of ???
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Smife,
I put a header on my 16v kick and it seemed to lose torque in a big way. I'm running 2.5" pipe with cat and homemade muffler. Straight through. I'm thinking about getting rid of the header!
Kj
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It's not the header, it's too big of pipe.
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Yep, you need a 2" pipe instead, don't take any lessons
from Rice Rockets, those are patterned after racecars
with turbo setups
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Bentparts,
You think a 2" tailpipe would help? May try that first!
Thanks,
Kj
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2" all the way. ;)
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I would recommend replacing the straight pipe muffler with a turbo muffler at the very least. A lot of public lands require some sort of spark arrester to avoid setting everything on fire, wthout a cat your muffler is the only thing in the way.
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Yeah, that too!
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The reason I mentioned the header is the primary tubes seem really big for the size of engine.
I'm a chevy guy and i had a 327 in my chevelle with 1 3/4" primary pipes and the motor lost a lot of torque
over the 1 5/8". it wasn't anything a 4000 converter couldn't fix! ; )
thanks for the help!!
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Don't forget about the snorkle, your eng. has to be able to breath. You might be loosing power cause the eng. has to pull harder to get a fresh "breath" Try putting a garden hose in your mouth and run around the block! ;) I would pull the air intake off and drive it, bet your power comes back. Or try and fab a scoop to help compress the air charge. I've never seen a drag car with a snorkle ???
Kevin