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Old 02-23-2014, 12:10 AM   #1
 
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Originally Posted by Mistersix View Post
Did you find leaner afr's to produce better spool?
just reading through this thread now and i saw your post and it seems no one really answered you. The answer to your question is No, rich AFR's lead to better spool as turbo's spool time increases with heat. When you have a richer AFR, there is more fuel to burn, therefore longer burn, therefore higher exhaust temperature. Another way to increase spool is to have relatively low ignition values (in the spool range) to allow the combustion to take place at a later time, once again creating more heat in the exhaust gases. The GTX28 really has no issues with spool time. In my case, i purposely slow down the spool up to avoid high torque numbers.

Edit: i thought he was on a GTX, im sure the GT28 spool times are not much slower than the GTX
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//2012 Black Mica Mazdaspeed 3//

//Sure Torq R3//Cobb AccessPort//Autotech Internals//Ultimate Racing Axelback//Resonator Delete//Ebay Catless DownPipe
//TR8L & Protege Garage piping//Devils Own Stage 1//NGK One Step Colder(failed) Denso ITV22//GoFastBits Blow Off Valve//Ksport Coilovers
//GTX 2867r//Protege Garage Externally Gated Manifold//Precision Turbo Wastegate//Bosh 3 Bar Map//HTP 3.5" Full Intake
//Grimmspeed 3 Port//Cobb Wastegate Lockout//Selfmade Screamer Pipe//ACT 6 puck w/ streetlite flywheel

// R3X Tune in Progress (self tune) 310whp 354wtq (CF 1.01) w. DO7 KO4
......GTX2867r 22psi: 357whp 353wtq (CF1.01)

Needs installing: JBR BSD kit, OCC
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