Crown

Board: Porsche - 911 - 997 - Turbo Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread


    IPD Plenum horsepower claims

    Found on another forum a claim that IDP has developed a plenum replacement for the 997TT that increases horsepower by 40. For those knowledgeable in this area is such a claim to be taken seriously. The price is $1100.00.

    Re: IPD Plenum horsepower claims

    I can believe it reduces turbulence and may lead to some power increases. 40hp though would require another .1 bar of boost or more to be developed, which is unlikely.

    Re: IPD Plenum horsepower claims

    Eugene, I thought it might have been optimistic. Do you have any sense for what this type of mod will acheive. I seem to remember you mentioning the poor design of the original plenum and suspect you would have an idea. Thanks for replying.

    Re: IPD Plenum horsepower claims

    I do think the stock plenum design is suboptimal, but in a boosted car the effect may be less important than on a naturally aspirated car. I think for $1k it would be worth a try.

    Re: IPD Plenum horsepower claims

    40HP is too optimistic.

    Re: IPD Plenum horsepower claims

    It was 40HP, actually 43HP. But the 43HP additional HP w/ the plenum was the # on a car w/ other Mod's. Which mods I'm still trying to get an answer on. Also trying to find out what the HP/trq/ #'s are w/ just the plenum on a stock car. But even if it only produces half that it's still well worth the price. I'm this || close to buying one... From RSSGreg @6-speed:

    http://www.roadsportsupply.com/IPD_Plenums_Porsche.html

    Re: IPD Plenum horsepower claims

    2

    Re: IPD Plenum horsepower claims

    Wow...

    Re: IPD Plenum horsepower claims

    Let's even say 25 H.P., that is well worth a $1000 to me plus $300 for installation.

    Re: IPD Plenum horsepower claims

    Quote:
    edz61 said:
    Let's even say 25 H.P., that is well worth a $1000 to me plus $300 for installation.




    At 25HP (being conservative) for the plenum + 20HP for an exhaust, so approx. 520HP

    Having 500+HP sounds so much better doesn't it?

    Did you buy yours yet? If not maybe we can get a better price by ordering 2/ or more? RSS was advertising a "Holiday Special" for the plenum on Sale for $995 maybe they'll still honor it?

    Re: IPD Plenum horsepower claims

    Stradle: I went to their shop as I live close by and I met Greg in person. He offered me $995 for the part and $300 to install. I looked at one installed and looked awsome,you can't even tell. The dealer told me if they link any problems to it the warranty will remain intact. I have not done the exhaust yet. Greg will sell me Cargraphics for $4500 + installation.

    Re: IPD Plenum horsepower claims

    Quote:
    edz61 said:
    Stradle: I went to their shop as I live close by and I met Greg in person. He offered me $995 for the part and $300 to install. I looked at one installed and looked awsome,you can't even tell. The dealer told me if they link any problems to it the warranty will remain intact. I have not done the exhaust yet. Greg will sell me Cargraphics for $4500 + installation.



    Just got off the phone w/ Greg, ordered the Plenum. You can't go wrong w/ the Cargraphic, it was between Cargraphic, a couple others & the Tubi for me. I went w/ the Tubi which you can get for that same price.

    Re: IPD Plenum horsepower claims

    Quote:
    STRADALE said:
    Quote:
    edz61 said:
    Stradle: I went to their shop as I live close by and I met Greg in person. He offered me $995 for the part and $300 to install. I looked at one installed and looked awsome,you can't even tell. The dealer told me if they link any problems to it the warranty will remain intact. I have not done the exhaust yet. Greg will sell me Cargraphics for $4500 + installation.



    Just got off the phone w/ Greg, ordered the Plenum. You can't go wrong w/ the Cargraphic, it was between Cargraphic, a couple others & the Tubi for me. I went w/ the Tubi which you can get for that same price.



    Congrat my friend so now you have the tubi + plenum May I ask what you paid for the plenum. Greg offered to pick up my car personally and do all the work and return it to my house. I am not sure if I will do the plenum and exhaust together or do one at the time Did you change your wheels too?

    Re: IPD Plenum horsepower claims

    Quote:
    edz61 said:
    Quote:
    STRADALE said:
    Quote:
    edz61 said:
    Stradle: I went to their shop as I live close by and I met Greg in person. He offered me $995 for the part and $300 to install. I looked at one installed and looked awsome,you can't even tell. The dealer told me if they link any problems to it the warranty will remain intact. I have not done the exhaust yet. Greg will sell me Cargraphics for $4500 + installation.



    Just got off the phone w/ Greg, ordered the Plenum. You can't go wrong w/ the Cargraphic, it was between Cargraphic, a couple others & the Tubi for me. I went w/ the Tubi which you can get for that same price.



    Congrat my friend so now you have the tubi + plenum May I ask what you paid for the plenum. Greg offered to pick up my car personally and do all the work and return it to my house. I am not sure if I will do the plenum and exhaust together or do one at the time Did you change your wheels too?



    You have a PM.

    Yeah, Tubi + IPD Air Intake Plenum. Yes, bought Champion's RS171's (Painted Black), black center caps w/ larger Gold Crest. Very similiar to :

    Re: IPD Plenum horsepower claims

    Here's a pic I took (bad pic I know) of my wheels/they're REALLY aggressive in person w/ a huge, deep dive in the center.

    Re: IPD Plenum horsepower claims

    RS171 in Silver:

    Re: IPD Plenum horsepower claims

    Very nice for $5K+

    Re: IPD Plenum horsepower claims

    Thye only way to test if this thing produces Porsche style hp is to test on an engine dyno the same way Porsche does -chassis dynos are just too variable !
    Look at the "before" power curve on the Mustang dyno plot above, the power tails off at ~5700. Now compare to the curve obtained by RS Tuning in the pre tune tests done on their engine dyno, th epower does not strat tailing off until after 6200rpm
    What is interesting is that Cargraphic are marketing these plenums, with the power gains marked as TBA, so maybe we will see some real engine dyno testing done after all - any bets on how much Porsche hp they are going to produce ?

    Re: IPD Plenum horsepower claims

    Quote:
    TB993tt said:
    Thye only way to test if this thing produces Porsche style hp is to test on an engine dyno the same way Porsche does -chassis dynos are just too variable !
    Look at the "before" power curve on the Mustang dyno plot above, the power tails off at ~5700. Now compare to the curve obtained by RS Tuning in the pre tune tests done on their engine dyno, th epower does not strat tailing off until after 6200rpm
    What is interesting is that Cargraphic are marketing these plenums, with the power gains marked as TBA, so maybe we will see some real engine dyno testing done after all - any bets on how much Porsche hp they are going to produce ?




    From what I understand the Plenum has been making 30+HP on stock 996 Turbo's "all-day" & should make at least that on the 997 Turbo.

    If I had to guess - I'd be conservative and stick w/ that 30HP #.

    Re: IPD Plenum horsepower claims

    Hey for a $1000 you can't go wrong and you will have some gains no matter what

    Re: IPD Plenum horsepower claims

    Plenum increases on a C2S:

    http://www.europeancarweb.com/tech/epcp_0709_porsche_977_carrera_s/index.html

    Re: IPD Plenum horsepower claims

    Quote:
    STRADALE said:
    Plenum increases on a C2S:

    http://www.europeancarweb.com/tech/epcp_0709_porsche_977_carrera_s/index.html



    18 H.P. Gain at the wheel for the 997S is pretty good. This translates to 25-30 H.P. at the crank perhaps. The article says 11 H.P. gain for the Cargraphic exhuast at the wheel.

    How many horsepower do you think you get with your Tubi?

    Re: IPD Plenum horsepower claims

    Quote:
    edz61 said:
    Quote:
    STRADALE said:
    Plenum increases on a C2S:

    http://www.europeancarweb.com/tech/epcp_0709_porsche_977_carrera_s/index.html



    18 H.P. Gain at the wheel for the 997S is pretty good. This translates to 25-30 H.P. at the crank perhaps. The article says 11 H.P. gain for the Cargraphic exhuast at the wheel.

    How many horsepower do you think you get with your Tubi?



    Around 30 Crank HP..

    Re: IPD Plenum horsepower claims

    So you probably get 15-18 at the wheel and at least 25 H.P. for the plenum.

    Re: IPD Plenum horsepower claims

    What worries me is the support from RSS. THEY started the thread on another forum on 12/4/08 with a "special price" and some other information. There were MANY requests for more information over a six week period. In spite of the potential for many sales there have been NO responses from them to date. I am a firm believer that if it too good to be true, then it probably is. This almost seems to fall into that catagory, Not sure if it is proper to put a link from one forum in another, but here it is:
    http://www.6speedonline.com/forums/showthread.php?t=108702
    If this is not "proper" - my apologies to Rennteam.

    Re: IPD Plenum horsepower claims

    Quote:
    imcarnuts said:
    What worries me is the support from RSS. THEY started the thread on another forum on 12/4/08 with a "special price" and some other information. There were MANY requests for more information over a six week period. In spite of the potential for many sales there have been NO responses from them to date. Not sure if it is proper to put a link from one forum in another, but here it is:
    http://www.6speedonline.com/forums/showthread.php?t=108702
    If this is not "proper" - my apologies to Rennteam.



    yep, i was wondering the same, but decided not to waste anymore time with speculations....

    Re: IPD Plenum horsepower claims

    Quote:
    imcarnuts said:
    What worries me is the support from RSS. THEY started the thread on another forum on 12/4/08 with a "special price" and some other information. There were MANY requests for more information over a six week period. In spite of the potential for many sales there have been NO responses from them to date. I am a firm believer that if it too good to be true, then it probably is. This almost seems to fall into that catagory, Not sure if it is proper to put a link from one forum in another, but here it is:
    http://www.6speedonline.com/forums/showthread.php?t=108702
    If this is not "proper" - my apologies to Rennteam.



    I agree and if I had not been to the shop and met with the people in person I would have been some what skeptical. But I look at this way; It's inexpensive, it looks really nice installed, the engine compartment looks stock and there is definitely some H.P. gain

    Re: IPD Plenum horsepower claims

    Quote:
    edz61 said:
    Quote:
    imcarnuts said:
    What worries me is the support from RSS. THEY started the thread on another forum on 12/4/08 with a "special price" and some other information. There were MANY requests for more information over a six week period. In spite of the potential for many sales there have been NO responses from them to date. I am a firm believer that if it too good to be true, then it probably is. This almost seems to fall into that catagory, Not sure if it is proper to put a link from one forum in another, but here it is:
    http://www.6speedonline.com/forums/showthread.php?t=108702
    If this is not "proper" - my apologies to Rennteam.



    I agree and if I had not been to the shop and met with the people in person I would have been some what skeptical. But I look at this way; It's inexpensive, it looks really nice installed, the engine compartment looks stock and there is definitely some H.P. gain



    And for those reasons I'll probably end up with one.

    Re: IPD Plenum horsepower claims

    The following statement is from RSS. They tested a 997TT with the plenum, software and exhaust and saw a difference of 43 H.P. at the wheel which translates to about 65+ H.P.at the crank. So without the ECU (just the Plenum and exhaust)if I get 20 additional H.P. at the wheel I will be happy:

    Greetings Once Again 6 Speeders,

    Below you will find the latest dyno results with the 997 TT IPD Plenum installed. These initial performance gains have been very promising. Please keep in mind that these dyno figures were performed with the car in Sport Mode and the car is equipped with after market exhaust and software. These horsepower gains are even more impressive when you consider that HP gains become harder to find and more expensive as you climb the proverbial "Performance Ladder". We should have new dyno results that compare stock versus plenum very soon. Once again production of these new Turbo plenum should begin next month. Stay tuned for availability.

    Please stop asking, "Why doesn't Porsche do this themselves?" We're not Porsche and we don't know. Please call them directly and let us know what they have to say regarding the product/design. All we know is that all of the plenums work great, produce the best bang for the buck power gains and give you genuine "Seat of the pants performance".

    Re: IPD Plenum horsepower claims

    Since they seem to sell almost exclusively RS Tuning packages now days I asked Cargraphic if they have got RS to properly test these plenums on their engine dyno. Here is the answer:
    THANK YOU FOR YOUR INTEREST IN CARGRAPHIC PRODUCTS
    WE HAVE DONE SOME TESTING WITH RS-TUNING ON A FEW PLENUMS
    AND FOUND AN OVERALL PEAK POWER INCREASE OF 9-14 PS AND A TORQUE INCREASE OF 8-12 NM
    THIS WAS ALWAYS USING THEM ON TOP OF OUR EXISTING POWERKITS

    WE HAVE UP TO DATE NOT DONE ANY TESTING WITH THE PLENUMS ALONE
    BUT WILL DO SO TOGETHER WITH RS-TUNING WHEN THE ENGINES COME AVAILABLE.

    So 9-14PS is not quite your 40hp but still definately worthwhile.
    I am still not 100% convinced since a friend got a recent quote from RS for a 598hp 997tt package and the plenum was not mentioned - this may just be RS being secretive however ! I will try and investigate further although RS will not usually share details of their methods or hardware

     
    Edit

    Forum

    Board Subject Last post Rating Views Replies
    Porsche Sticky The moment I've been waiting for... 5/18/22 6:36 PM
    Pilot
     
     
     
     
     
    572950 1306
    Porsche Sticky OFFICIAL: New Porsche 911 Turbo S (2020) 4/23/22 1:43 PM
    Rossi
    222162 1179
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 5/22/22 5:17 PM
    nberry
    111758 978
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 4/1/22 7:14 AM
    Boxster Coupe GTS
    108066 405
    Porsche Sticky Porsche Taycan Turbo S - Short Review 1/3/22 7:55 AM
    Rossi
    89295 531
    Porsche Sticky OFFICIAL: Cayman GT4 RS (2021) 1/15/22 10:41 PM
    watt
    31407 1
    Porsche Cayman GT4 10/5/21 7:04 PM
    Topspeed
    511748 3587
    Porsche OFFICIAL: 911 GT2 RS (2017) 9/28/21 3:25 AM
    WhoopsyM
    427200 3507
    McLaren McLaren on a winning streak 2/1/22 10:14 PM
    SSO.
    424085 3954
    Porsche OFFICIAL: 991.2 GT3 RS (2018) 11/17/21 5:18 PM
    Rossi
    387736 3256
    Porsche OFFICIAL: 911 R (2016) 2/1/22 9:49 AM
    RCA
    364586 2655
    Porsche 992 GT3 5/22/22 5:56 PM
    Moser
    347230 3543
    Porsche OFFICIAL: The new Porsche 992 – a design icon and high-tech sports car 9/29/21 1:59 AM
    watt
    289383 1587
    Porsche Donor vehicle for Singer Vehicle Design 2/10/22 9:08 PM
    Topspeed
    137450 772
    Porsche Welcome to the new Taycan Forum! 4/25/22 7:26 PM
    bluelines
    134645 1388
    McLaren F1 7/10/21 7:43 AM
    BiTurbo
    110721 209
    AMG AMG GT R 3/13/22 8:52 PM
    spudgun
    109694 834
    Lambo Aventador and SV 5/20/22 5:24 PM
    Topspeed
    107469 710
    Others Tesla 2 the new thread 5/19/22 5:11 PM
    Leawood911
    92527 1644
    Porsche GT4RS 5/20/22 8:12 AM
    d997h
    83701 938
    Motor Sp. [2021] Formula 1 4/19/22 10:08 PM
    Leawood911
    75817 1590
    Others Bugatti Chiron 4/12/22 9:24 PM
    blueflame
    74759 520
    Ferrari Ferrari 812 Superfast 12/15/21 8:04 PM
    Topspeed
    70145 533
    BMW M BMW M2 Rumors 2/28/22 7:42 PM
    Topspeed
    61624 409
    Porsche Red Nipples 991.2 GT3 Touring on tour 4/4/22 7:10 AM
    GnilM
    54504 472
    Porsche Dave and Gnil @ Nürburgring Nordschleife 5/19/22 11:01 PM
    Grant
    53944 721
    Lambo Urus (SUV) 7/21/21 6:22 PM
    Topspeed
    53931 592
    Others Corvette C8 11/8/21 8:04 PM
    Topspeed
    49802 442
    Others Toyota Yaris GR 4/13/22 8:33 PM
    Grant
    26512 640
    AMG AMG plotting new SLR with hybrid power for 2018 launch 2/22/22 2:34 PM
    Topspeed
    24150 275
    225 items found, displaying 1 to 30.