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Old 01-13-2009, 09:40 PM
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CL-S 6 Dyno

Here is the graph after the Neo tune and correction:

I/H/E/P/Plenums/Spacers/Magnaflow Cat & Axlebacks

I expected a little more, the tuner said that the torque curve is a little messed up once it hits vtec. He suggested that I might benefit from a cat-back. Let me know what you think.

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Old 01-14-2009, 08:32 AM
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I would go back with a full exhaust. That may be why you didnt make as much power as you would think. I would think you would hit 250whp or more with all that. What is the inlet and outlet on your magnaflow hi flow cat?

I made 237whp on my auto with just I/H/P/Spacers. Get that exhaust!
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Old 01-14-2009, 03:11 PM
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those are some good numbers.... and its a clean graph...im sure u can get your numbers higher
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Old 01-14-2009, 03:56 PM
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I would have expected your numbers to be a little higher as well since you are a six speed. I made similar numbers in my A/T on the same type of dyno and correction factors.

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Old 01-14-2009, 08:41 PM
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I think I can get higher numbers, it is just a matter of what gives me a bang for my buck. Not sure how much longer I'll keep this, so I don't want to dump a whole lot of cash into it. I think the inlet/outlet of the cat is 2.5" but I am not sure. Any other ideas of what would help free up some of the power?
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Old 01-14-2009, 10:30 PM
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I meant 2.25 for the cat in/out diameter.
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Old 01-16-2009, 03:25 PM
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If you dont wana spend the money on an exhaust just unbolt it before you go back. Its gona be loud as hell due to the open header like exhaust but it will flow unrestricted helping to free up the power being restricted by the stock exhaust
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Old 01-16-2009, 05:22 PM
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u might actually loose power doing that.
unless he's boosted and running a lot of boost or engine work /stroke.

but increasing d pipe diameter to the cans will def help.
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Old 01-16-2009, 06:06 PM
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u wont lose power, my boy's cls6 ran 13.7 with just intake and open headers. He couldnt do that on stock exhaust.

Now if he had an aftermarket exhaust and ran the open headers he would lose power
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Old 01-17-2009, 08:17 PM
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Originally Posted by L's TL View Post
u wont lose power, my boy's cls6 ran 13.7 with just intake and open headers. He couldnt do that on stock exhaust.

Now if he had an aftermarket exhaust and ran the open headers he would lose power
that dont add up to me. why wud he lose TQ if he had open headers + after market exhaust which usually dont do notin but change the sound and probably run with the same or slightly better air flow at least in the cl-s stock exhaust
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Old 01-17-2009, 08:43 PM
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Open headers/exhaust cutouts usually only benefit benefit most if FI.

The car flows pretty well as it is in stock form with stock ECU settings
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Old 01-17-2009, 10:57 PM
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Originally Posted by poisx7 View Post
u might actually loose power doing that.
unless he's boosted and running a lot of boost or engine work /stroke.

but increasing d pipe diameter to the cans will def help.
Agreed. You lose backpressure. So you end up losing low end tq but gaining some high end hp. So make your decision based on what part of the rpm range you use most of the time.

+1 for going with a larger diameter pipe to the mufflers.
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Old 01-19-2009, 12:47 PM
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I have been looking for a b-pipe or catback...no luck. Has anyone fabricated one?
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Old 01-19-2009, 05:58 PM
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comptech !!!!
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Old 01-20-2009, 08:53 PM
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Nice numbers, now work on getting closer to mines... lol J/K
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Old 01-21-2009, 09:40 PM
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i know u did nt make that much power .. ?? or cant NA
well unless u are boosted NOW.. this days.............. LOL j/k
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Old 05-11-2009, 09:06 AM
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Well I just realized that I have a pretty bad air leak from my comptech headers. It is right where the rear of the flex pipe meets the downpipe. I never thought anything of the sound of air being release between shifts (like a BOV) until I went underneath the car and felt the whoosh of air while someone revved the engine.
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Old 05-12-2009, 08:44 AM
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i would leave it. prolly sounds sick. jk. i have a hole the size of a dime in my headers
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Old 05-15-2009, 10:44 AM
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Is your IMRC working? Your torque drops of at Vtec engagement... looks strange to me.
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Old 05-15-2009, 10:47 AM
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What advantage do you get installing a Throttle body spacer...?
does an AEM CAI fit with the TBS...?
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Old 05-15-2009, 12:22 PM
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My IMRC is working, I think the drop at VTEC is the flex-pipe leak that I have. It definitely is more pronounced at VTEC.
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Old 05-15-2009, 12:27 PM
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Yeah I was wondering about that drop at 4K and 4800K as well....
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Old 05-25-2009, 03:58 PM
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Hey im new to the CL world. Just wondering what ecu you are using? OEM chipped or a standalone? Thanks.
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Old 05-25-2009, 10:42 PM
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Originally Posted by Oacrep1 View Post
Hey im new to the CL world. Just wondering what ecu you are using? OEM chipped or a standalone? Thanks.
There arent any chips available for our car. Just piggy-backs or $$$ standalones.
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