Whiplash Posted January 7, 2005 Report Share Posted January 7, 2005 http://tinypic.com/173ecz Link to comment Share on other sites More sharing options...
Whiplash Posted January 10, 2005 Report Share Posted January 10, 2005 After rubbing a little dirt on the turbo. And wipeing dirt off my glasses. I could make out the top numbers better. It shows to be 49178-01750. At http://www.lmsspeed.com/MitsuTurboUpgrade.htm it shows that it's an upgrade 1985-87 turbo. What's the differance between the 1985-87 and the 1987 & 1/2 -89 turbos. My Conquest is a 11/86 build date. What would I do to upgrade to a 89 style turbo? Link to comment Share on other sites More sharing options...
Metric-man Posted January 10, 2005 Report Share Posted January 10, 2005 After rubbing a little dirt on the turbo. And wipeing dirt off my glasses. I could make out the top numbers better. It shows to be 49178-01750. At http://www.lmsspeed.com/MitsuTurboUpgrade.htm it shows that it's an upgrade 1985-87 turbo. What's the differance between the 1985-87 and the 1987 & 1/2 -89 turbos. My Conquest is a 11/86 build date. What would I do to upgrade to a 89 style turbo? The cartridge and the compressor housing seem to be the same . You have a two(?) vacuum ports on your waste gate actuator the 01760 probably has three. (On line service manual Intake and Exhaust page # 11-15) Link to comment Share on other sites More sharing options...
APalmer Posted January 27, 2005 Report Share Posted January 27, 2005 I have another "Numbers" question related to this. I don't understand the definition of "TRIM". For example, you can find Trim often described for Mopar replacement turbos, and there is a great variety involving different Trim options such as at http://turbosunleashed.com/shop/product_in...products_id=187 Can anyone put this, also, in plain English? Thanks very much in advance - Andy Link to comment Share on other sites More sharing options...
marksweet Posted January 27, 2005 Report Share Posted January 27, 2005 Andy the trim is the relationship between the inducer and exducer of a wheel, compressor or turbine. I'll talk compressor wheel. As you look into the bore at the wheel you see the inducer section of the wheel. Let's say the size measured there is 2.13". If you dissassembled the turbo and the measured section at the wide part(exducer of a comp wheel) and got say 3.00" you can calculate the trim. the formula is: 100*(2.13/3.00)^2=trim. In english divide the inducer size by the exducer size and square it. Multiply that number by 100 will give you the trim. In this case it is a 50 trim compressor wheel. Unless you were an engineer you could not put this to use. It involves the way the air comes off the wheels fins as it is being compressed. The 50 trim is a very popular wheel for the DSM's 2.0 motor as it seems to be very efficient and pump gas friendly allowing up to 22 psi on pump on those motors. I run one on my '93 Talon. Boosted_One should know a bit as he is familiar with Garrett turbo's which can be custom built using the trim whels the customer wants unlike a standard Mitsu 16G for example. Hope I helped a little. Mark Link to comment Share on other sites More sharing options...
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