Tgv Deletes - Page 2 - Subaru WRX Forum
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#16 Old 01-16-2006, 09:53 AM
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Quote:
Originally Posted by LiL Shoaf
The only real time that it's worth the time, effort, and money to remove the tumblers is in a High Boost, Highly Modified Engine.. I still even have mine in and I am running a GT35R at 24 PSI... I am debating on removing them, but have not decided yet..
I agree.
Ill also be running a gt35R rotated mount in afew weeks and im going to remove the tgv's.
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#17 Old 01-16-2006, 04:33 PM
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After a some what lengthly discussion with "RON" from Axis Racing I can concur with dumdum on the issue of simply removing the Butterfly's.. It's "easy" according to Ron.. Beware however that the bottom of the bolts are "Peened" over so they can not work lose and fall into the motor. One must grin the ends of the screws down prior to removal or the heads will round out.. I however am still debating on purchasing an aftermarket setup simply because the aftermarket setup "Should" flow more air then the stockers with the butterfly's removed.. With my Custom Cams, over-sized valves, and port and polish I want every component to flow to it's highest potential...

02 WRX.. "It's fun when it runs.. Problem is that it hardly ever does..."
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#18 Old 01-16-2006, 06:39 PM
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Quote:
Originally Posted by LiL Shoaf
After a some what lengthly discussion with "RON" from Axis Racing I can concur with dumdum on the issue of simply removing the Butterfly's.. It's "easy" according to Ron.. Beware however that the bottom of the bolts are "Peened" over so they can not work lose and fall into the motor. One must grin the ends of the screws down prior to removal or the heads will round out.. I however am still debating on purchasing an aftermarket setup simply because the aftermarket setup "Should" flow more air then the stockers with the butterfly's removed.. With my Custom Cams, over-sized valves, and port and polish I want every component to flow to it's highest potential...

I think I am going to do it...

"Life's a bowl of punch so go ahead and Spike it!" -311
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#19 Old 01-17-2006, 05:35 AM
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Quote:
Originally Posted by LiL Shoaf
After a some what lengthly discussion with "RON" from Axis Racing I can concur with dumdum on the issue of simply removing the Butterfly's.. It's "easy" according to Ron.. Beware however that the bottom of the bolts are "Peened" over so they can not work lose and fall into the motor. One must grin the ends of the screws down prior to removal or the heads will round out.. I however am still debating on purchasing an aftermarket setup simply because the aftermarket setup "Should" flow more air then the stockers with the butterfly's removed.. With my Custom Cams, over-sized valves, and port and polish I want every component to flow to it's highest potential...
Ver 7 risers ($75-100) or a Ver 8 intake manifold.Way cheaper than buying the APS units ($350) This guy usually has this stuff even if its not listed in his website. www.iaperformance.com

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#20 Old 01-17-2006, 05:23 PM
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For those who need visual Reference like I do.. Below are before and after shots of What was suggested to me.. Thanks to Stephen Clark at Iaperformance.com for the images..
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02 WRX.. "It's fun when it runs.. Problem is that it hardly ever does..."

Last edited by LiL Shoaf; 01-18-2006 at 04:30 PM.
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#21 Old 01-19-2006, 11:36 AM
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I am getting some work done here with in the next month....and the shop asked me if I wanted the valves removed off of the wrx....Safe? hmmm this seems like something that will cause the vehicle to be unreliable.

Im just confused damn you Nick lol you got me spending money on that turbo and Im taking care in b4 the turbo to get the paint job done "I should just pay it off b4 i do ANYMORE work lol"

Chris- ▼SbiΣ Mi▼
242 AWHP / 318 TQ
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#22 Old 01-19-2006, 12:19 PM
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Quote:
Originally Posted by ManicsWrX
I am getting some work done here with in the next month....and the shop asked me if I wanted the valves removed off of the wrx....Safe? hmmm this seems like something that will cause the vehicle to be unreliable.

Im just confused damn you Nick lol you got me spending money on that turbo and Im taking care in b4 the turbo to get the paint job done "I should just pay it off b4 i do ANYMORE work lol"
Well a TGV delete would do ya good but it will make your cold starts a little harder...your car is going to be a beast when you are done with it for sure.

"Life's a bowl of punch so go ahead and Spike it!" -311
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#23 Old 01-19-2006, 02:24 PM
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Quote:
Originally Posted by LiL Shoaf
After a some what lengthly discussion with "RON" from Axis Racing I can concur with dumdum on the issue of simply removing the Butterfly's.. It's "easy" according to Ron.. Beware however that the bottom of the bolts are "Peened" over so they can not work lose and fall into the motor. One must grin the ends of the screws down prior to removal or the heads will round out.. I however am still debating on purchasing an aftermarket setup simply because the aftermarket setup "Should" flow more air then the stockers with the butterfly's removed.. With my Custom Cams, over-sized valves, and port and polish I want every component to flow to it's highest potential...
do cams or oversized valves count as added displacement?
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#24 Old 01-19-2006, 02:29 PM
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Quote:
Originally Posted by mosc
do cams or oversized valves count as added displacement?

I would say yes....that is an excellent question...I am going to look into that

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#25 Old 01-19-2006, 04:32 PM
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Quote:
Originally Posted by mosc
do cams or oversized valves count as added displacement?
No, Cams and Oversized Valves do not count as added Displacement. My block is still a 2.5L no matter what Cams or Valves I bolt on it.. The aggressive Cam profiles with added lift and the 1mm oversized Valves only allow more air into the motor faster.. They do not change the displacement of the motor.. Sure, they can allow higher boost numbers faster but not added displacement....

On the Tumbler note.. I found out some great news today.. The Hydra Stand alone EMS that I ordered for my 02 Rex does not register the Tumbler position sensors so I can remove EVERYTHING from the tumblers.. The butterfly valves, the rod, and the sensors.. That saved me a ton of time and money.. I'm going to hit the risers with the milling machine tomorrow..

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#26 Old 01-19-2006, 04:33 PM
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lol, I thought you still had an EJ20 in there!
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#27 Old 01-20-2006, 08:47 AM
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Quote:
Originally Posted by LiL Shoaf
No, Cams and Oversized Valves do not count as added Displacement.

Damn.....I came to the same conclusion...

"Life's a bowl of punch so go ahead and Spike it!" -311
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#28 Old 01-20-2006, 07:50 PM
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TRhe only thing that changes displacement is bore,stroke,and piston diameter.

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#29 Old 01-23-2006, 06:01 PM
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Quote:
Originally Posted by dumdum
The only thing that changes displacement is bore,stroke,and piston diameter.
+1 That's what I was saying.


Quote:
Originally Posted by mosc
lol, I thought you still had an EJ20 in there!
Lol, nope, I melted it down in August of 05.. Had a leaking Injector that caused a fuel loss to Cylinder #2..
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#30 Old 05-10-2006, 12:12 PM
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just FYI

I thought I'd add a couple of comments for anyone that is consider doing this.
1. Your idle will be fine, and you will not have any cold start issues.
2. w/o tuning you will lose your bottom end and your acceleration will be somewhat jerky but both issues should be remedied with a tune. I'm awaiting a reply by PDX to see if they can ship me a map.
The TGVs are closed at start-up to reduce emissions, then they slowly open until *fully* opened at ~3K. As someone mentioned above fully opened doesn't always mean 100%


Here's mine with the phenolic spacer that I made to throw in too. I installed mine while installing the gas-smell fix. I don't agree that it is not worthwhile to do. All the small things add up, i.e. lighter pulley, P&P, inlet pipe, etc.

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