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<blockquote data-quote="jinkl" data-source="post: 1953165" data-attributes="member: 3008"><p>Under_ground_most_wanted : dylan , there are a few things u have to see in a turbine , garrett has its own way of showing its specification , mhi has its own</p><p></p><p>let me paste some info for u</p><p></p><p>[FONT=Arial,Helvetica,sans-serif]<span style="font-size: 10px"><span style="color: black">Wheel "<strong>trim</strong>" refers to the squared ratio of the smaller diameter divided by the larger diameter times 100. Generally, the larger the trim number the more flow the wheel has.</span></span></p><p> <span style="font-size: 10px"><span style="color: black">For compressor wheels , larger trim tends to mean slightly lower efficiency. </span></span></p><p> <span style="font-size: 10px"><span style="color: black">For "families" of turbine wheels (those with the same inducer diameter), larger trim usually means better flow with less backpressure but longer spool time. </span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p> <span style="font-size: 10px"><span style="color: black"><strong>A/R</strong> is a ratio of the exhaust discharge area vs the distance from the center of turbine wheel to the center of the cross sectional area. Smaller A/R housing has faster spool up. Bigger A/R housing has less back pressure, more flow for the top end.</span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black">as for mitsu</span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black"></span></span></p><p><span style="font-size: 10px"><span style="color: black">Mitsubishi uses TD04, TD05, TD06, ...to designates turbo housing. </span></span></p><p> <span style="font-size: 10px"><span style="color: black">For example, TD05H-16G 7cm^2 is a turbo with,</span></span></p><p> <span style="font-size: 10px"><span style="color: black"></span></span>[/FONT] <ul> <li data-xf-list-type="ul">[FONT=Arial,Helvetica,sans-serif]<span style="font-size: 10px"><span style="color: black"> <br /> [*] TD05 turbine housing with 'H' style turbine wheel. There are S, SH, H... style of turbine wheel/housing. <br /> [*] 16G compressor wheel. 16 is the size of the wheel, 1.83 inducer, 2.37 exducer. There is no direct correlation between MHI designation and actual physical size of the compressor wheel. G is the style of wheel (uneven height of blades). C, B, T style wheel's blades have the same height. Blades are equally spaced, but the number and pitch of the blades vary between models. <br /> [*] 8cm^2 is referring to exhaust discharge area in the turbine housing. More specifically, it is the smallest cross-sectional area of the scroll, turbine housing. Very similar to Garrett turbo's A/R. The smaller number means faster spool-up but more back pressure at higher rpm. Bigger number means longer spool up but less back pressure, thus more top end power.<br /> </span></span>[/FONT]</li> </ul><p>[FONT=Arial,Helvetica,sans-serif]<span style="font-size: 10px"><span style="color: black">Greddy modifies Mitsu turbos. I don't have any published specs for Greddy turbos and i have not taken any time to measure them. It's possible some of turbos have different specs from Mistubishi. Also, both Greddy TD05 and TD06 use 3 bolt turbine flange where as Mistubishi's uses 4 bolt flanges. </span></span></p><p> <span style="font-size: 10px"><span style="color: black">Bisides the TD04, TD05, TD06, TD07 and TD08 turbos, Greddy also makes hybrid turbo, T67 is TD07 compressor and TD06 turbine, same turbo as TD06SH-25G. T78 is the compressor of TD08 and turbine of TD07, T88 uses compressor and turbine from TD08.</span></span>[/FONT]</p></blockquote><p></p>
[QUOTE="jinkl, post: 1953165, member: 3008"] Under_ground_most_wanted : dylan , there are a few things u have to see in a turbine , garrett has its own way of showing its specification , mhi has its own let me paste some info for u [FONT=Arial,Helvetica,sans-serif][SIZE=2][COLOR=black]Wheel "[B]trim[/B]" refers to the squared ratio of the smaller diameter divided by the larger diameter times 100. Generally, the larger the trim number the more flow the wheel has. For compressor wheels , larger trim tends to mean slightly lower efficiency. For "families" of turbine wheels (those with the same inducer diameter), larger trim usually means better flow with less backpressure but longer spool time. [B]A/R[/B] is a ratio of the exhaust discharge area vs the distance from the center of turbine wheel to the center of the cross sectional area. Smaller A/R housing has faster spool up. Bigger A/R housing has less back pressure, more flow for the top end. as for mitsu Mitsubishi uses TD04, TD05, TD06, ...to designates turbo housing. For example, TD05H-16G 7cm^2 is a turbo with, [/COLOR][/SIZE][/FONT][LIST][FONT=Arial,Helvetica,sans-serif][SIZE=2][COLOR=black] [*] TD05 turbine housing with 'H' style turbine wheel. There are S, SH, H... style of turbine wheel/housing. [*] 16G compressor wheel. 16 is the size of the wheel, 1.83 inducer, 2.37 exducer. There is no direct correlation between MHI designation and actual physical size of the compressor wheel. G is the style of wheel (uneven height of blades). C, B, T style wheel's blades have the same height. Blades are equally spaced, but the number and pitch of the blades vary between models. [*] 8cm^2 is referring to exhaust discharge area in the turbine housing. More specifically, it is the smallest cross-sectional area of the scroll, turbine housing. Very similar to Garrett turbo's A/R. The smaller number means faster spool-up but more back pressure at higher rpm. Bigger number means longer spool up but less back pressure, thus more top end power. [/COLOR][/SIZE][/FONT][/LIST] [FONT=Arial,Helvetica,sans-serif][SIZE=2][COLOR=black]Greddy modifies Mitsu turbos. I don't have any published specs for Greddy turbos and i have not taken any time to measure them. It's possible some of turbos have different specs from Mistubishi. Also, both Greddy TD05 and TD06 use 3 bolt turbine flange where as Mistubishi's uses 4 bolt flanges. Bisides the TD04, TD05, TD06, TD07 and TD08 turbos, Greddy also makes hybrid turbo, T67 is TD07 compressor and TD06 turbine, same turbo as TD06SH-25G. T78 is the compressor of TD08 and turbine of TD07, T88 uses compressor and turbine from TD08.[/COLOR][/SIZE][/FONT] [/QUOTE]
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