02-07-2007, 12:48 PM | #1 |
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turbo question
is a garrett t18a40 off a fullsize gm truck to big for my 5.4? i don't really understand how to look at the ar and see if it is to big or to small...
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02-07-2007, 01:30 PM | #2 |
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Sorry, I am not familiar with that #
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02-07-2007, 03:11 PM | #3 |
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Is this it??
This one's a bit large for your 5.4, unless you have some pretty stout parts and intend it to be a racecar. What you will like on the street is a straight T4...something in the 70-76mm range, with at least a "clipped P-trim" or a "GTQ" trim turbine wheel. Spools nice and enough for 600-800rwhp, depending on configuration. Post pics if you have any.
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02-07-2007, 05:35 PM | #4 |
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this is the only pic i have. it says it came off a gm 16v 149t diesel engine.
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5.4 project in the works..... link: http://www.illwillinc.com/97mustang.htm PowderCoating and Anodizing: http://www.illwillinc.com/ Last edited by myillwillinc; 07-02-2007 at 04:55 PM. |
02-08-2007, 08:10 AM | #5 |
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Uh Huh...that's it
Diesel turbos like that generally have a HUGE turbine wheel and housing, it might not even spin on idle...seriously. It would need a very big, healthy motor to spin it up. Then, the compressor wheels are generally smaller than a big, healthy motor could use for big power. They're just mismatched for a gas-engine. Not to mention, all the weight you remove with the tubular K-member will be re-installed with that 50-pound chunk of iron on there. You have to make a support bracket specifically to hold those things up because exhaust headers will bend, crack, and collapse under the weight alone. What condition is it in? Might be able to trade on some parts that could go toward something a little smaller. We occasionally get inquiries about 18-wheeler rebuilds and it might be a good core.
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