Re: 1168 AWHP on pump e85
Is there room to run a small a/r t4 exhaust housing on each turbo? The 6765 can pick up huge numbers when you run a t4 housing. The giant bore it takes to run a t3 housing ruins the nozzle area of the scroll (makes it huge) which does allow for decent flow but loses velocity therefore t4 housings of similar a/r spool better. You can go up in size on the t4, spool the same, AND make more power. They still make hp gains when staying about the same size a/r.
Whenever I get around to working on cars again I am ditching my t3 .63 housing in favor of something like a .96 t4 housing (but for a single I have not decided to build twin scroll and divided housing). While I saw AWD motorsports make crazy power with a t3 housing, the general trend I have seen is 5-10% hp gains on a single turbo. First person to clue me to this is a builder at Heffner (Aaron) who plays with turbo dodges.
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Brent - Great Depression Racing
1992 Duster 11.54@125 22psi BONE Stock 6g72 12 valve - -516whp 519ft/lb 20psi (Old 3.13L built shortblock) - Precision 6765
Now, Stock 10:1 diamante 12 valve shortblock with regapped rings. Stock heads/cams. Waiting.
1994 Spirit - 13.85@108.8 - SOHC - 10psi - Holset He341 & chrome rings.
1981 Starlet KP61
http://www.youtube.com/watch?v=AXF2c...saCIg4HZ3MmpVw
Last edited by Ondontii; 11-22-2012 at 09:35 AM.
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