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CNC Speedshop 2.4 liter stroker kit installed but making LESS power than before

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Old 03-12-2017, 06:01 AM
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What header and exhaust are you running?
Old 03-12-2017, 09:25 AM
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Originally Posted by flanders
What header and exhaust are you running?
I am running an OEM header and a 2.5 inch exhaust with a gern pipe (megaphone) instead of a catalysator.

Old 03-12-2017, 09:41 AM
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Do you have a cat or a muffler inside the megaphone? Is it a small straight thru muffler in the end? It's hard to tell from that picture.
Btw you should not call this a Gernpipe, it looks nothing like it.
A better designed free flowing exhaust like the 3" Berk would probably free up some power, but hard to tell how much.
Old 03-12-2017, 09:59 AM
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Originally Posted by flanders
Do you have a cat or a muffler inside the megaphone? Is it a small straight thru muffler in the end? It's hard to tell from that picture.
Btw you should not call this a Gernpipe, it looks nothing like it.
A better designed free flowing exhaust like the 3" Berk would probably free up some power, but hard to tell how much.
I don't have a cat inside this megaphone and I have a single maroso exhaust muffler in the end. Single maroso muffler


Old 03-12-2017, 10:47 AM
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Do you think 225whp is possible on just low cams?
Old 03-12-2017, 11:04 AM
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Originally Posted by afzan
it still doesn't look like vtec is engaging, but who cares? Just install more mods!
Old 03-12-2017, 01:27 PM
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Originally Posted by afzan
it still doesn't look like vtec is engaging, but who cares? Just install more mods!
Why do you thinkmvtec is not engaging?It is hard to believe the engine will have 225 whp and no vtec.
Old 03-12-2017, 05:42 PM
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Was it a dual exhaust that you converted to a single? It looks like that could be causing turbulent flow. You should just run an out-of-the-box exhaust and hfc/tp. I bet that would yield gains.
Old 03-12-2017, 05:51 PM
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Originally Posted by flanders
Do you think 225whp is possible on just low cams?
Originally Posted by eMotion
Why do you thinkmvtec is not engaging?It is hard to believe the engine will have 225 whp and no vtec.
Oops my bad, when I replied from my phone I thought the latest dyno sheet was a before/after of the new parts
Old 03-12-2017, 10:26 PM
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  • My tuner thinks the exhaust can't be causing this but I will try going back to dual exhaust. I wonder if it will be any better to go to 3 inch single or dual exhaust instead of the 2.5 inch I have now.


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