New Mod: 3.4L TB Bore Mod, “O” Gasket Mod, and PCV Breather Mod – with pics
08-26-2003, 08:04 AM
#21
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Originally posted by 4RUNR
Just curious if you've heard of it.
Just curious if you've heard of it.
I would rate this mod as cosmetic more than anything. Maybe .1HP.
08-26-2003, 02:24 PM
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Originally posted by landman
Wil removing the PCV valve allow the unburned fuel pass through the exhaust and damage the O2 sensor? Or will the ECU adjust to make the engine run more lean?
Wil removing the PCV valve allow the unburned fuel pass through the exhaust and damage the O2 sensor? Or will the ECU adjust to make the engine run more lean?
The hot rod guys almost always run crankcase breathers on their V8's. I ran one on my old Mazda Truck and my old Civic SI for years. Must have lost .5 seconds in the 1/4 mile...
09-04-2003, 10:24 AM
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I thought I would follow up and mention that my 3rd gear 5K RPM and above power seems to be slightly better, and smoother.
I thought I would throw that out there for anyone considering this mod. I still have to get a write-up going for it.
So far so good.
I thought I would throw that out there for anyone considering this mod. I still have to get a write-up going for it.
So far so good.
09-09-2003, 06:08 AM
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If you are talking about the hose with a metal fitting that plugs into the back side of the intake track, then yes I left that on.
Post a pic if you have any further questions about it.
Post a pic if you have any further questions about it.
09-09-2003, 08:12 AM
#33
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Gaskets
I don't have them in stock currently, looking at 3 to 5 business days for me to get them.
22275-20010 Gasket $2.43ea
Total w/ shipping $54.60 to your front door.
Let me know
Todd
22275-20010 Gasket $2.43ea
Total w/ shipping $54.60 to your front door.
Let me know
Todd
09-09-2003, 08:40 AM
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D-gaskets
No, I can't be positive until I have one in my hands although I bet it is. I will order one tonight and see what it looks like tomorrow and report back with you.
Todd
Todd
09-09-2003, 08:37 PM
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96Runner
What size is the Crank case breather and what else do you have to do when pulling out the hose from the engine block.
Also, is there a spring or valve where you put the breather on. I read on custom tacos that you have to remove the valve or spring(this was on a 2.7) or else you will have long term problems.
What size is the Crank case breather and what else do you have to do when pulling out the hose from the engine block.
Also, is there a spring or valve where you put the breather on. I read on custom tacos that you have to remove the valve or spring(this was on a 2.7) or else you will have long term problems.
09-10-2003, 06:12 AM
#37
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Originally posted by 03TundraTRD
96Runner
What size is the Crank case breather and what else do you have to do when pulling out the hose from the engine block.
Also, is there a spring or valve where you put the breather on. I read on custom tacos that you have to remove the valve or spring(this was on a 2.7) or else you will have long term problems.
96Runner
What size is the Crank case breather and what else do you have to do when pulling out the hose from the engine block.
Also, is there a spring or valve where you put the breather on. I read on custom tacos that you have to remove the valve or spring(this was on a 2.7) or else you will have long term problems.
The grommet, PCV valve, and vacuum line all come out. This is what you are left with:
Then, just plug in the breather. Now plug off the fitting at the TB. That's it you're done.
As for the size, well I would have to check on that. I just grabbed a breather at the local Type-R store and got lucky. You can tell what size you need by looking at the grommet when it's out.
Last edited by rimpainter.com; 09-10-2003 at 06:13 AM.
09-16-2003, 06:15 AM
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Originally posted by Detcord
Did you bother capping off the other side of the PCV system?
The other valve cover has a hose that connects infront of the butterfly (hi side)
Just wondering.
Detcord.
Did you bother capping off the other side of the PCV system?
The other valve cover has a hose that connects infront of the butterfly (hi side)
Just wondering.
Detcord.
09-16-2003, 12:58 PM
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I meant the tube with the metal fitting....saw a previous post where you addressed the fact that you left it in.
I would seriously suggest removing this line, as it will allow air to enter crankcase and then go into the TB putting the blow off gas right back into your intake and this time infront of the butterfly. This will gum it up nicely.
Just a suggestion, but since the original design was to use filtered high side intake air to move through the crankcase and then into the low side of the intake I would be hesitant to leave your breather assembly as is.
Seeya
Detcord.
I would seriously suggest removing this line, as it will allow air to enter crankcase and then go into the TB putting the blow off gas right back into your intake and this time infront of the butterfly. This will gum it up nicely.
Just a suggestion, but since the original design was to use filtered high side intake air to move through the crankcase and then into the low side of the intake I would be hesitant to leave your breather assembly as is.
Seeya
Detcord.
