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    May 8, 2005 3:31:52 AM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
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    My 997c2 dyno

    The following are results of my dyno. I'm not sure if I should be happy with the results or not but please take a look and give me your opinions.

    997c2 base with fabspeed cold air/bmc filter/fabspeed headers and muffler bypass w/approx. 6000 miles. Ambient temp. 70 F and approx 5-10 ft above sea level. (don't know if that makes any difference)

    I had 4 runs with low hp of 302.6 and high of 309.9 / low tq of 264.9 and high of 269.8. Anyway, you see it on the graph. Dynapack.

    May 8, 2005 4:06:41 AM

    sdy284
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    sdy284
    Loc: Wisconsin, USA
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    Reply to: tagheuer

    Re: My 997c2 dyno

    did you do a "stock" run?

    May 8, 2005 6:59:07 AM

    Mike S
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    Mike S
    Loc: Somewhere , Taiwan
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    Reply to: sdy284

    Re: My 997c2 dyno

    ......... isn't it supposed to be 325 bhp for a standard Carrera? then why is it even lower with all the extra's you've put on?

    May 8, 2005 8:16:28 AM

    Carlos from SpainM
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    Carlos from Spain
    Loc: Spain. , Spain
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    Reply to: Mike S

    Re: My 997c2 dyno

    rear wheel 305HP should be around 355HP flywheel, no?

    What was the pre dyno numbers?

    May 8, 2005 3:11:55 PM

    bgarrett
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    bgarrett
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    Reply to: Carlos from SpainM

    Re: My 997c2 dyno

    If those numbers are at the wheel for a non-S, those are impressive numbers. The interesting question is whether they differ for a stock car.

    May 8, 2005 3:21:56 PM

    Ron (Houston)M
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    Ron (Houston)
    Loc: Houston, TX , United States
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    Reply to: bgarrett

    Re: My 997c2 dyno

    Quote:
    bgarrett said:
    If those numbers are at the wheel for a non-S, those are impressive numbers. The interesting question is whether they differ for a stock car.



    Indeed if they're at the wheel, very impressive.

    May 8, 2005 4:06:44 PM

    SoCal Alan
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    SoCal Alan
    Loc: Orange County , United States
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    Reply to: Carlos from SpainM

    Re: My 997c2 dyno

    Quote:
    Carlos from Spain said:
    rear wheel 305HP should be around 355HP flywheel, no?

    What was the pre dyno numbers?



    Why does the top of the graph show "Flywheel power/torque: Correction Method SAE". To me, it's misleading if that graph represented power/torque at the wheels.

    May 8, 2005 7:35:01 PM

    tagheuer
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    tagheuer
    Loc: SoCal
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    Reply to: SoCal Alan

    Re: My 997c2 dyno

    Sorry if the graph is misleading in any way or that I didn't add enough information.

    The dyno was done after all modifications on a base non-S 997c2. I didn't get a chance to dyno the car before the my modifications went in so I can't give you a improvement comparison. In anycase, the dyno numbers are at the WHEEL and not the flywheel.

    May 8, 2005 7:46:09 PM

    SoCal Alan
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    SoCal Alan
    Loc: Orange County , United States
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    Reply to: tagheuer

    Re: My 997c2 dyno

    Cool. Maybe I might take my 997S in for comparison. How long did it take and how much did it cost, if I may ask?

    May 8, 2005 8:57:49 PM

    Carlos from SpainM
    Rennteam Moderator
    Carlos from Spain
    Loc: Spain. , Spain
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    Reply to: tagheuer

    Re: My 997c2 dyno

    Quote:
    tagheuer said: In anycase, the dyno numbers are at the WHEEL and not the flywheel.



    Then you should be happy with the results Though dyno results can vary from dyno to dyno, and even from day to day (thats why a pre-dyno refference is so helpful) the 305HP at the wheel you got would correspond with around 350-360HP at the flywheel

    May 8, 2005 10:27:55 PM

    tagheuer
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    tagheuer
    Loc: SoCal
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    Reply to: SoCal Alan

    Re: My 997c2 dyno

    The dyno took less than an hour and the cost was under $100 for 3 runs.

    May 8, 2005 10:38:44 PM

    tagheuer
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    tagheuer
    Loc: SoCal
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    Reply to: tagheuer

    Re: My 997c2 dyno

    The higest numbers were attained on the first run and the lowest number on the last. Overall the numbers are pretty consistent on each run. The sweet spot is definitely between 3k and 6k.

    In addition, I have a comparison with a stock 360 modena that was dynoed there which I'll post up later. It's interesting.

    May 9, 2005 9:31:46 AM

    Dilinger
    Rennteam Pro
    Dilinger
    Loc: Athens,Greece , Greece
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    Reply to: tagheuer

    Re: My 997c2 dyno

    okey gives us more info on that one. You should dyno the car also BEFORE to get the picture of the quality of the mods you made.

    May 9, 2005 9:46:07 AM

    Black Diamond
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    Black Diamond
    Loc: Italy
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    Reply to: Dilinger

    Re: My 997c2 dyno

    OK, seen that you have the strange "red pipe by Fabspeed".

    Can you please tell me if that part really make the difference from the standard one in terms of sound?

    May 9, 2005 10:59:20 AM

    Dilinger
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    Dilinger
    Loc: Athens,Greece , Greece
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    Reply to: Black Diamond

    Re: My 997c2 dyno

    yes post details of mods please

    May 9, 2005 3:30:25 PM

    RCA
    Rennteam Administrator
    RC
    Loc: Rennteam HQ , Germany
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    Reply to: tagheuer

    Re: My 997c2 dyno

    Nice, entertaining and maybe nice for comparison (before/after) but unless you take out the engine and do a "proper" testing, this all is worth...nothing (and you're 100 bucks poorer ).

    May 9, 2005 3:38:07 PM

    tagheuer
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    tagheuer
    Loc: SoCal
    Posts: 37, Gallery
    Registered on: Jan 17, 2005
    Reply to: RCA

    Re: My 997c2 dyno

    Quote:
    RC said:
    Nice, entertaining and maybe nice for comparison (before/after) but unless you take out the engine and do a "proper" testing, this all is worth...nothing (and you're 100 bucks poorer ).



    well, yeah...i was just entertained for 1 hour and I got a neat little graph at the end. i guess i'll just have to charge a little more on my next contract to cover that.

    May 9, 2005 3:43:42 PM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
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    Reply to: Black Diamond

    Re: My 997c2 dyno

    Quote:
    Black Diamond said:
    OK, seen that you have the strange "red pipe by Fabspeed".

    Can you please tell me if that part really make the difference from the standard one in terms of sound?



    Personally, I don't think it made much of a difference...same for the sound. I thought it sounded stock. However, it looks kinda cool...(I'm just a sucker for these kinda things )

    May 9, 2005 3:44:35 PM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
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    Reply to: Dilinger

    Re: My 997c2 dyno

    Quote:
    Dilinger said:
    yes post details of mods please



    Please read my original post. The details are listed.

    May 9, 2005 3:46:08 PM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
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    Registered on: Jan 17, 2005
    Reply to: tagheuer

    Re: My 997c2 dyno

    Here's a dyno of a stock 360 modena compared to mine

    May 9, 2005 4:43:13 PM

    1Gunner
    Junior
    1Gunner
    Loc: Down by the river in a van! , Canada
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    Reply to: tagheuer

    Re: My 997c2 dyno

    Just curious, but what's with the large torque and smaller HP drop at ~5900RPM?
    Two spikes for the price of one?

    May 9, 2005 4:52:10 PM

    SoCal Alan
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    SoCal Alan
    Loc: Orange County , United States
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    Reply to: 1Gunner

    Re: My 997c2 dyno

    Quote:
    1Gunner said:
    Just curious, but what's with the large torque and smaller HP drop at ~5900RPM?
    Two spikes for the price of one?



    Yeah, that's interesting, isn't it? Maybe a little NOS boost at the end?

    May 9, 2005 5:06:34 PM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
    Posts: 37, Gallery
    Registered on: Jan 17, 2005
    Reply to: SoCal Alan

    Re: My 997c2 dyno

    sorry...

    green - 360
    red - 997c2 w/mod

    May 12, 2005 8:25:58 PM

    airkewl
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    airkewl
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    Reply to: tagheuer

    Re: My 997c2 dyno

    That is pretty darned impressive. I just plugged those dyno curves in my acceleration testing program (pretty good one). The 360 came out to about about right:

    rolling start 5-60 4.1, 5-100 4.9, 1/4 mile 12.4 at 115.6

    The modded 997 done the same way:

    rolling start 5-60 4.4, 5-100 10.3, 1/4 mile 12.8 at 109.3

    That's very quick, especially for a non S model.

    May 12, 2005 9:04:31 PM

    1Gunner
    Junior
    1Gunner
    Loc: Down by the river in a van! , Canada
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    Reply to: airkewl

    Re: My 997c2 dyno

    the 360, 5-100 @ 4.9?

    May 12, 2005 9:35:30 PM

    airkewl
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    airkewl
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    Reply to: 1Gunner

    Re: My 997c2 dyno

    Whoops, that's supposed to be 9.9, sorry

    May 12, 2005 10:56:43 PM

    tagheuer
    Newbie
    tagheuer
    Loc: SoCal
    Posts: 37, Gallery
    Registered on: Jan 17, 2005
    Reply to: airkewl

    Re: My 997c2 dyno

    Thats cool...I guess I have a pretty good motor...

    May 13, 2005 9:52:32 AM

    Dilinger
    Rennteam Pro
    Dilinger
    Loc: Athens,Greece , Greece
    Posts: 2034, Gallery
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    Reply to: tagheuer

    Re: My 997c2 dyno

    yes i guess that too!!

    May 13, 2005 9:53:08 AM

    Dilinger
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    Dilinger
    Loc: Athens,Greece , Greece
    Posts: 2034, Gallery
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    Reply to: Dilinger

    Re: My 997c2 dyno

    What size are the wheels of your car?
    This is important when measuring HP on the wheel

    May 13, 2005 12:02:56 PM

    pic911s
    Junior
    pic911s
    Loc: canada
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    Reply to: Dilinger

    Re: My 997c2 dyno

    Tagheuer, How much did the package cost you and did you get it done in Penns. where Fabsped is located? Is what you had done street legal in your state?
     
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