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Thread: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

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    Default Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    Stock heads:


    Ported:



    Note -- I need good data on the 1JZ. The current graph is an approximation based on the idea that the 1JZ flows 90% of the 2JZGTE intake, and 88% of the 2JZGTE exhaust. I got this data from a post by Erin Carpenter on Supraforums where he tested a stock 1JZ intake port at 215cfm at .4" lift and 133cfm for the exhaust (he tested a 2JZGTE at 238cfm intake and 154cfm exhaust). Its quite possible that the 1JZ flows as well as the 2JZ up to a certain lift, and then stalls earlier (more like the 7m). The rest of the engines are about as accurate as one could expect -- averaging data from 3-8 people/engine.
    Last edited by ma71supraturbo; June 18th, 2009 at 06:59 PM.

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    Raw numbers (pressure is at 28" H20 unless otherwise noted -- you can convert from another pressure by multiplying by sqrt(28/x) where x is the other pressure in inches of H20):


    5MGE




    Bruce Hilsabeck (tested at 25" H20)
    Intake: (lift in inches, stock cfm, ported cfm)
    0.1 52 63
    0.2 109 114
    0.3 137 153
    0.4 149 182
    0.5 158 199
    Exhaust: (lift in inches, stock cfm, ported cfm)
    0.1 40 52
    0.2 66 101
    0.3 101 126
    0.4 119 141
    0.5 126 147


    JT (Tested at 10" H20)
    Intake: (lift in inches, stock cfm, ported cfm)
    0.039 13.7 14.5
    0.079 27.3 27.7
    0.118 40.3 40.7
    0.157 52 43.3
    0.197 63.2 66.8
    0.236 73 78.9
    0.276 78.7 89.7
    0.315 81.8 99.1
    0.354 85.8 106.1
    0.394 89.3 111.5
    0.433 92.4 115.7
    0.472 93.3 117.5
    0.512 95.1 117.9
    Exhaust: (lift in inches, stock cfm)
    0.039 10.7
    0.079 22.3
    0.118 33.7
    0.157 44
    0.197 56.5
    0.236 67.3
    0.276 76.2
    0.315 80
    0.354 83.9
    0.394 85.3
    0.433 86.8
    0.472 87.8
    0.512 88.2

    MARK5mgte (tested at unknown pressure on homemade flowbench)
    Intake: (lift in inches, stock cfm, ported +1mm OS valve cfm)
    0.4 185 252
    Last edited by ma71supraturbo; June 18th, 2009 at 06:26 PM.

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    7MG

    Stock 7m Intake:
    lift(in)___Defiant7m___iNvis7M ('89)___T72mk3 ('89)___chevyeater1 ('90 #6 casting)
    0__________0___________0_______________0_____________0
    0.05_______ ___________37.8____________30.8___________
    0.1________77.4________81______________67.3__________
    0.15_______113.9_______118.5___________ ______________
    0.2________141.4_______149_____________139.1_________158
    0.25_______162.8_______166.8___________ ______________183
    0.3________176_________184.8___________179.7_________198
    0.35_______179.6_______190.7___________ ______________205
    0.4________179.6_______193.7___________190.1_________210
    0.45_______180_________ _______________ ______________210
    0.5________180_________ _______________190.1__________





    Stock 7m Exhaust:
    llift(in)___Defiant7m___iNvis7M ('89)___T72mk3 ('89)___chevyeater1 ('90 #6 casting)
    0__________0___________0_______________0_____________0
    0.05_______ ___________30.2____________29.9___________
    0.1________60.4________65______________62.1__________
    0.15_______93__________84.5____________ ______________
    0.2________112.9_______106_____________112.7_________135
    0.25_______123.2_______116.9___________ ______________148
    0.3________127.8_______121.4___________130.8_________155
    0.35_______130.7_______126_____________ ______________156
    0.4________133.2_______129_____________137.7_________158
    0.45_______133.2_______ _______________ ______________160
    0.5________133_________ _______________140.4__________162





    Defiant7m stock vs street port (stock valves, cut valve guides) vs race port (2JZ valves, cut valve guides, "big port" #12 casting I believe, and lots of porting)

    Intake:
    lift(in)___Stock___Street___Race
    0.1________77.4____80.4_____80.8
    0.15_______113.9___122.4____121.7
    0.2________141.4___159.9____152.6
    0.25_______162.8___187.8____181
    0.3________176_____202.4____201.3
    0.35_______179.6___211.2____211.8
    0.4________179.6___216.5____222.4
    0.45_______180_____220______231.8
    0.5________180_____220______239.1





    Exhaust:
    lift(in)___Stock___Street___Race
    0.1________60.4____76.3_____76.3
    0.15_______93______103.4____108
    0.2________112.9___121______135.2
    0.25_______123.2___131______150.3
    0.3________127.8___139.4____163.8
    0.35_______130.7___143.1____167.6
    0.4________133.2___149.5____171.8
    0.45_______133.2___155______174
    0.5________133_____155______178





    T72mk3 ('89) stock vs ported (stock valve)

    Intake:
    Lift(in)___Stock___Ported
    0__________0_______0
    0.05_______30.8____39.3
    0.1________67.3____78.5
    0.2________139.1___166.4
    0.3________179.7___213.9
    0.4________190.1___228.8
    0.5________190.1___234.7



    Exhaust:
    Lift(in)___Stock___Ported
    0__________0_______0
    0.05_______29.9____39
    0.1________62.1____75.7
    0.2________112.7___131.6
    0.3________130.8___156.5
    0.4________137.7___172.8
    0.5________140.4___176


    MADSUPRA88 Ported (stock valve):

    Lift Intake
    500 243
    400 231
    300 216
    200 188
    100 114

    Lift Exhaust
    500 193
    400 186
    300 172
    200 142
    100 80
    Last edited by ma71supraturbo; June 19th, 2009 at 06:01 PM.

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    1JZGTE

    Erin Carpenter (presumed to be at 28")
    Intake: (lift in inches, stock cfm, ported cfm)
    0.4 215 230
    Exhaust: (lift in inches, stock cfm, ported cfm)
    0.4 133 152

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    2JZGE

    Intake (stock):
    Lift(in)_gianttomato_SuperRunner_Headgames
    0.05_____39.32_______ ___________
    0.1______82.49_______89.65_______89
    0.15_____129.68______ ___________
    0.2______163.32______158.27______130.4
    0.25_____191.43______ ___________170
    0.3______210.5_______197.03______182.6
    0.35_____220.5_______206.72______199.5
    0.4______224.39______208.34______212
    0.45_____227.57______ ___________220.8
    0.5______228.91______ ___________



    Exhaust (stock):
    Lift(in)_gianttomato_SuperRunner
    0.05_____30.79_______
    0.1______63.59_______62.9
    0.15_____96.72_______
    0.2______126.34______117.3
    0.25_____135.04______
    0.3______141.73______146.2
    0.35_____144.41______149.6
    0.4______147.08______151.3
    0.45_____149.76______
    0.5______151.6_______




    Headgames stock intake vs stock intake with performance valvejob (stock valve)
    Lift(in)_Stock__Valvejob
    0.1______89_____97
    0.2______130.4__166.9
    0.25_____170____198.8
    0.3______182.6__216.9
    0.35_____199.5__223
    0.4______212____228.7
    0.45_____220.8__232




    SuperRunner
    A) Stock
    B) Feb 2006 1st attempt at porting (gasket matched)
    C) B + 30degree backgrind
    D) June 2006 more porting same head (later said he made bowl too big)
    E) D + cut valve guides
    F) Jan 2009 (3 heads later ~= professional type job) stock valve, cut guides

    Intake:
    Lift(in)_A_______B_______C_______D_______E_______F
    0.1______89.65___86.92___88.2____89.38___90______92.1
    0.15_____ _______ _______ _______ _______ _______132.5
    0.2______158.27__167.27__168.31__163.93__161_____171.3
    0.25_____ _______ _______ _______ _______ _______207.6
    0.3______197.03__213.17__214.86__216.14__216_____236.1
    0.35_____206.72__225.25__228.22__228.47__229_____257.8
    0.4______208.34__231.51__233.2___237.95__239_____270.2
    0.45_____ _______ _______ _______ _______ _______280
    0.5______ _______ _______ _______ _______251_____


    I this this is fascinating, so I tried to zoom in to highlight the region where the different aspects of porting changed the flow

    Exhaust:
    Lift(in)_A_______B_______C_______D
    0.1______62.9____70.29___71.02___72.43
    0.2______117.3___128.37__130.38__126.23
    0.3______146.2___163.16__164.73__159.38
    0.35_____149.6___172.68__173.74__168.75
    0.4______151.3___179.46__179.46__173.86




    GiantTomato Intake (stock vs ported):
    Lift(in)_Stock__Ported
    0.05_____39.3___39.7
    0.1______82.5___83.2
    0.15_____129.7__125.5
    0.2______163.3__163.3
    0.25_____191.4__191.4
    0.3______210.5__216.7
    0.35_____220.2__235.4
    0.4______224.4__243.5
    0.45_____227.6__249.8
    0.5______228.9__251.3

    Exhaust (stock vs ported):
    Lift(in)_Stock__Ported
    0.05_____30.8___31.3
    0.1______63.6___65.3
    0.15_____96.7___103.2
    0.2______126.3__136.4
    0.25_____135.0__162.3
    0.3______141.7__178.2
    0.35_____144.4__185.4
    0.4______147.1__193.8
    0.45_____149.8__201.0
    0.5______151.6__203.8

    Last edited by ma71supraturbo; June 18th, 2009 at 04:28 PM.

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    2JZGTE

    Stock Intake:
    Lift(in)_ErinC_BXRsupra_poggie_M2racing_silvino_StuHagen
    0.05_____ _____ ________50.1___45_______45______
    0.1______ _____81_______100.5__92_______97______80
    0.15_____ _____ ________148.8__136______138_____
    0.2______ _____155______186.7__168______169_____154
    0.25_____ _____ ________212.2__190______190_____
    0.3______ _____199______231.8__205______210_____195
    0.35_____ _____ ________241.9__217______227_____
    0.4______238___207______246____225______228_____207
    0.45_____ _____ ________ ______229______228_____
    0.5______ _____215______ ______231______228_____215


    Stock Exhaust:
    Lift(in)_ErinC_BXRsupra_poggie_M2racing_silvino_StuHagen
    0.05_____ _____ ________37_____38_______36______
    0.1______ _____65_______76.3___82_______75______74
    0.15_____ _____ ________105.3__106______109_____
    0.2______ _____122______124.2__120______128_____120
    0.25_____ _____ ________135.8__129______140_____
    0.3______ _____145______141.7__136______146_____140
    0.35_____ _____ ________147.5__137______150_____
    0.4______154___151______148____138______154_____152
    0.45_____ _____ ________ ______138______154_____
    0.5______ _____152______ ______139______154_____154



    Note: Silvino tested with manifolds on

    Silvino Stock vs Supraformance Ported
    Intake:
    Lift(in)_Stock_Ported
    0.05_____45____47
    0.1______97____93
    0.15_____138___137
    0.2______169___174
    0.25_____190___205
    0.3______210___229
    0.35_____227___243
    0.4______228___248
    0.45_____228___248
    0.5______225___248

    Exhaust:
    Lift(in)_Stock_Ported
    0.05_____36____42
    0.1______75____90
    0.15_____109___119
    0.2______128___140
    0.25_____140___152
    0.3______146___161
    0.35_____150___165
    0.4______154___166
    0.45_____154___166
    0.5______154___166



    Stu Hagen Stock vs SHP stage 1 Ported
    Intake:
    Lift(in)_Stock_Ported
    0.1______80____97
    0.2______154___174
    0.3______195___230
    0.4______207___260
    0.5______215___265

    Exhaust:
    Lift(in)_Stock_Ported
    0.1______74____80
    0.2______120___140
    0.3______140___170
    0.4______152___180
    0.5______154___185




    T78supra Stock vs Stock +1mm valves vs Ported +1mm valves (unknown pressure -- probably ~20")
    Intake:
    Lift(in)_Stock_+1mm_Ported+1mm
    0.1______66___72___81
    0.2______131__141__158
    0.3______169__179__199
    0.4______180__191__214
    0.5______190__198__221

    Exhaust:
    Lift(in)_Stock_+1mm_Ported+1mm
    0.1______60___65___79
    0.2______115__123__147
    0.3______138__145__163
    0.4______142__152__165
    0.5______144__158__166




    suprwhp Ported, +1mm valves, cut guides
    Intake:
    .1 117.7
    .2 202.7
    .3 266.2
    .4 296
    .45 306.3
    Exhaust:
    .1 89.3
    .2 165
    .3 176.6
    .4 184.1
    .45 191.5


    M2 Racing (stock vs M2racing CNC ported):
    Last edited by ma71supraturbo; June 18th, 2009 at 06:12 PM.

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    Thank you for all the beautiful info this really need to be stickied
    "There is no excellent beauty that hath not some strangeness in the proportion."
    -Sir Francis Bacon


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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    Quote Originally Posted by ma71supraturbo View Post
    Stock heads:


    Ported:



    Note -- I need good data on the 1JZ. The current graph is an approximation based on the idea that the 1JZ flows 90% of the 2JZGTE intake, and 88% of the 2JZGTE exhaust. I got this data from a post by Erin Carpenter on Supraforums where he tested a stock 1JZ intake port at 215cfm at .4" lift and 133cfm for the exhaust (he tested a 2JZGTE at 238cfm intake and 154cfm exhaust). Its quite possible that the 1JZ flows as well as the 2JZ up to a certain lift, and then stalls earlier (more like the 7m). The rest of the engines are about as accurate as one could expect -- averaging data from 3-8 people/engine.
    Great graphs, but i am very confused by your 1j info. I have always read that the 1j flowed more on either the exhaust or intake. having them flow 10 percent less overall is something i have never heard. Who has flow tested their 1j heads?
    1989: 1jz 300RWHP/298RWTQ 14.7psi __________ My Supramania 1JZ build thread __________ 1986.5 N/A, 5 speed

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  9. #9
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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    Quote Originally Posted by viperkillertt View Post
    Who has flow tested their 1j heads?

    As I posted -- the only data I've found is from Erin Carpenter. Here is his post on SF:

    Quote Originally Posted by Erin Carpenter
    It has been a very common rumor on here for a long time that the 1JZ head flows better than the 2JZ. This has lead to alot of people doing the 1.5JZ swap or atleast wanting to. Over the last few weeks I have been building a 1JZ, including porting the head, for a customer. I flowed the head on our SF-600 flow bench before and after I ported the head.

    A stock 2JZ flows about 238in and 154ex at .400 lift. A stock 1JZ head flows 215in and 133ex at .400 lift. After I did a good street port job including reworking the chamber the 1JZ head flowed 230in and 152ex at .400. This should put to rest the idea that the 1JZ head is better than the 2JZ, because the fact of the matter is that it is not better.

    Erin
    http://www.supraforums.com/forum/sho...d.php?t=339560

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    Default Re: Supra Head Flow (5M,7M,1JZ,2JZGE,2JZGTE)

    this thread = total pwnage!

    1988 TOYOTA SUPRA 93,XXX on chassis & counting...........................................................
    1.5JZ, HKS 264 Cams and much more
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