Anyone looking for a Turbo type 4 motor?, Comes with 1976 chassis. |
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Anyone looking for a Turbo type 4 motor?, Comes with 1976 chassis. |
matthepcat |
Aug 11 2016, 01:00 PM
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Meat Popsicle Group: Members Posts: 1,462 Joined: 13-December 09 From: Saratoga CA Member No.: 11,125 Region Association: Northern California |
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krazykonrad |
Aug 11 2016, 01:49 PM
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#2
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Senior Member Group: Members Posts: 1,128 Joined: 21-February 06 From: Canton, GA Member No.: 5,610 |
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HAM Inc |
Aug 11 2016, 03:03 PM
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#3
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
Not trolling, just sharing info. (IMG:style_emoticons/default/smile.gif) I've prepped plenty of T4 heads for turbo engines. The heads aren't well suited for it, but with a small bore and low revs they can be made to work for a while. T4 heads are inherantly weak in the ex port area and as a result are extremely vulenerable to elevated EGT's, which all turbo engines are prone to. This is why small bores work better than big bores, as the bigger the bore, the weaker the head. Thermal coatings are a must! |
Dave_Darling |
Aug 12 2016, 09:46 AM
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#4
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Not trolling, just sharing info. (IMG:style_emoticons/default/smile.gif) That's an old inside joke. "Everybody knows you can't turbo a 914!" Seems to me that when Jeff Shyu was doing his, he used a rising rate fuel pressure regulator. ... I don't understand how the correct pulse width could be attained using an MPC based system. If the fuel pressure is right, you don't really need the correct pulse width. But fuel pressure is a pretty coarse adjustment, I think... --DD |
Andyrew |
Aug 12 2016, 11:10 AM
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#5
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Seems to me that when Jeff Shyu was doing his, he used a rising rate fuel pressure regulator. ... I don't understand how the correct pulse width could be attained using an MPC based system. If the fuel pressure is right, you don't really need the correct pulse width. But fuel pressure is a pretty coarse adjustment, I think... --DD I agree. Granted people have been doing it on Honda's and other 4 cyls for years. They generally all blow up though.. Its not a long term solution. I think the only real solution is a standalone system like Megasquirt. Being able to adjust the timing will really help low end torque and the ability to run lower boost for a higher power gain. |
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