DIY: EGR Modification/Optimization (3.0L V6) - Page 2 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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Old 01-20-2008, 03:17 PM   #11 (permalink)
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Yay! this how to was essential! thanks!
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Old 01-20-2008, 03:33 PM   #12 (permalink)
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hey no problem guys. as much info as i get from all of u i figured i'd try to give back somehow. glad everyone found this useful.
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Old 01-20-2008, 03:39 PM   #13 (permalink)
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good write up there. I just might do this today and the TB coolant bypass if I can figure that one out too. anyone have a link to the TB coolant bypass or if there is a how-to on that?[/b]

all u need for this is i believe a hose splicer to connect the 2 hoses to each other. maybe 2 proper size hose clamps. it'll leak some coolant but nuthing major. u could use a red plastic cup to catch the fluid
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Old 01-21-2008, 09:50 AM   #14 (permalink)
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Does anyone know what the torque specs are for the bolts holding down the intake manifold, the EGR valve, and the throttle body (if I end up removing the throttle body)? I just want to make sure it is torqued properly without over/under tightening.

I used to remember the torque specs for the throttle body but forgot.

Paul
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Old 01-21-2008, 10:10 AM   #15 (permalink)
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I believe I found the torque specs for the intake manifold, thanks to a message Fly757 left in a previous post. Here is a direct quote pulled from that topic:

Quote:
-A torque wrench is always recomended for things like the intake manifold. You could get away with doing it by hand, but then you're taking some risks.
The upper intake manifold bolt pattern is as follows:

7 1 3 5
8 4 2 6

Torque 72-106 in-lbs. Work slowly and progressively, and in the correct order.[/b]
Now I just need to dig up the specs for the EGR valve and the TB. I'll post them if I can find them.

Paul
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2007 Mazda6s GT 5-Door, Tungsten Grey (Auto, 6-speed) : >>> My Garage <<<
1/4 Mile: 15.609s @ 89.69 MPH <-- MIR, 3/1/08. Burnout done for traction, Brake torqued around 1700RPMs, Wheelspin off the line. Low trap time due to Cyl #6 misfire.
0-60 MPH (60.3 actually): 6.45s <-- Timed with MSD DashHawk (TCS off, D Mode, no brake torque, some wheelspin off the line). Repeatable. Time should improve with better launching and better tires.
Dyno/Tune (Conservative timing adjustment) 1/26/08 ---> 182.53 HP / 172.33 TQ at the wheels (SAE format)
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Old 01-21-2008, 02:02 PM   #16 (permalink)
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I'm in the process of doing mine now. That third hose under the TB is a pain in the ass to remove, I was unsuccessful removing it since it was stuck on the IM so well. Also, don't forget to take a vacuum hose to the EGR valve when finished to suck up any metal shavings/dust that may accrue in what's left of the tube prior to reassembling. I used a dremel cutting wheel on mine and it left some shavings and dust in the egr valve, nothing a vacuum couldn't handle.
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2007 Mazda6s GT 5-Door, Tungsten Grey (Auto, 6-speed) : >>> My Garage <<<
1/4 Mile: 15.609s @ 89.69 MPH <-- MIR, 3/1/08. Burnout done for traction, Brake torqued around 1700RPMs, Wheelspin off the line. Low trap time due to Cyl #6 misfire.
0-60 MPH (60.3 actually): 6.45s <-- Timed with MSD DashHawk (TCS off, D Mode, no brake torque, some wheelspin off the line). Repeatable. Time should improve with better launching and better tires.
Dyno/Tune (Conservative timing adjustment) 1/26/08 ---> 182.53 HP / 172.33 TQ at the wheels (SAE format)
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Old 01-21-2008, 02:29 PM   #17 (permalink)
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Quote:
I'm in the process of doing mine now. That third hose under the TB is a pain in the ass to remove, I was unsuccessful removing it since it was stuck on the IM so well. Also, don't forget to take a vacuum hose to the EGR valve when finished to suck up any metal shavings/dust that may accrue in what's left of the tube prior to reassembling. I used a dremel cutting wheel on mine and it left some shavings and dust in the egr valve, nothing a vacuum couldn't handle. [/b]

hey bro. i just added all the TQ specs for everything on top of the motor.

its in my first post just right after step #11. just click to enlarge. hope that helps!
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Old 01-21-2008, 03:38 PM   #18 (permalink)
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Seriously, this How-To is reminiscent of quality Mazda6tech articles.
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Old 01-21-2008, 04:11 PM   #19 (permalink)
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I made it sticky...
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Old 01-21-2008, 04:46 PM   #20 (permalink)
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Seriously, this How-To is reminiscent of quality Mazda6tech articles.[/b]
thank you kind sir

Quote:
I made it sticky...[/b]

appreciate it bro. this should stop the random WTF is the egr mod questions that pop up from time to time.

yeeyah baby, my 1st sticky, lol!
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