Removing Tumble Valve Generators?
09-25-2003, 12:13 AM
#1
Registered User
Thread Starter
iTrader: (2)
Join Date: Nov 2002
Location: San Jose, CA
Posts: 157
Car Info: STi Motor Mounts, Synthetic Fluids, nothing else yet
Removing Tumble Valve Generators?
Hello everyone,
I am just wondering what people's opinions are on remvoing the TVG's... on a personal or experience level.
The two roughts are going with the stockers and using epoxy to fill in the holes and smooth everything out...
...or...
Buying STi replacement sections that don't incorporate the TVG, and have an edged section within the section...
Now thats all well and good, but what about the effects on the ECU, running conditions, cold starts, and what not.
What should this modification include (ECU upgrade, custom wiring, etc. ) ?
Rich
I am just wondering what people's opinions are on remvoing the TVG's... on a personal or experience level.
The two roughts are going with the stockers and using epoxy to fill in the holes and smooth everything out...
...or...
Buying STi replacement sections that don't incorporate the TVG, and have an edged section within the section...
Now thats all well and good, but what about the effects on the ECU, running conditions, cold starts, and what not.
What should this modification include (ECU upgrade, custom wiring, etc. ) ?
Rich
09-25-2003, 01:33 PM
#2
Registered User
iTrader: (12)
Join Date: Nov 2002
Location: Reno, NV
Posts: 18,369
Car Info: 1993/2000/2001 GF4 mostly red
Personally I would just get the STi manifold. Of course, if you do that, also try removing the TGVs just to see if it works. 
That way you can put the STi mani on when/if it doesn't. 
That way you can put the STi mani on when/if it doesn't.
09-26-2003, 06:37 PM
#4
Registered User
Thread Starter
iTrader: (2)
Join Date: Nov 2002
Location: San Jose, CA
Posts: 157
Car Info: STi Motor Mounts, Synthetic Fluids, nothing else yet
Originally posted by DeliciouSpeed
Good mod for sure, the stock ECU will not be happy though.
Good mod for sure, the stock ECU will not be happy though.
Rich
09-26-2003, 06:46 PM
#5
Admin v2.0
iTrader: (9)
Join Date: Nov 2002
Location: Alameda, CA, USA
Posts: 6,965
Car Info: 02 Black Legacy GT
I took mine out, welded the holes and had them ported. That was before the STi's were available all over the place.
I think it is not worth it hacking your stock ones. Just get the STi's. And, there is no need to get the whole manifold. Just get the TGV housings.
- Alex
I think it is not worth it hacking your stock ones. Just get the STi's. And, there is no need to get the whole manifold. Just get the TGV housings.
- Alex
09-27-2003, 02:50 AM
#7
Registered User
Thread Starter
iTrader: (2)
Join Date: Nov 2002
Location: San Jose, CA
Posts: 157
Car Info: STi Motor Mounts, Synthetic Fluids, nothing else yet
Originally posted by dahveed
ECU reflash & tune would do it....
ECU reflash & tune would do it....
Rich
09-27-2003, 08:41 AM
#8
Sarcastic Jackass
Join Date: Dec 2002
Location: Western Washington
Posts: 622
Car Info: i drive a beater
personal experience with the tgvs removed: trouble with cold starts. STi manifold is a lot nicer. Cold start issue went away after Autronic was installed for other reasons.
09-27-2003, 04:41 PM
#9
Registered User
Thread Starter
iTrader: (2)
Join Date: Nov 2002
Location: San Jose, CA
Posts: 157
Car Info: STi Motor Mounts, Synthetic Fluids, nothing else yet
Originally posted by Jgrahn555
personal experience with the tgvs removed: trouble with cold starts. STi manifold is a lot nicer. Cold start issue went away after Autronic was installed for other reasons.
personal experience with the tgvs removed: trouble with cold starts. STi manifold is a lot nicer. Cold start issue went away after Autronic was installed for other reasons.
Whats Autronic? Is it stock Subaru?
Rich
09-28-2003, 08:45 AM
#10
Sarcastic Jackass
Join Date: Dec 2002
Location: Western Washington
Posts: 622
Car Info: i drive a beater
Originally posted by SJwrx
Isn't the STi manifold the stock WRX peice, just painted?
Whats Autronic? Is it stock Subaru?
Isn't the STi manifold the stock WRX peice, just painted?
Whats Autronic? Is it stock Subaru?
the autronic was used primarily for other reasons, but it helped out with this TGV situation.
09-29-2003, 07:03 AM
#11
Originally posted by Jgrahn555
personal experience with the tgvs removed: trouble with cold starts. STi manifold is a lot nicer. Cold start issue went away after Autronic was installed for other reasons.
personal experience with the tgvs removed: trouble with cold starts. STi manifold is a lot nicer. Cold start issue went away after Autronic was installed for other reasons.
Thread
Thread Starter
Forum
Replies
Last Post
wonton2049
Engine/Power - EJ20T (pre-2006 WRX and JDM)
3
06-08-2004 04:45 PM
AWDrifter21
Used Aftermarket Car Parts For Sale
0
03-04-2004 06:43 PM
AWDrifter21
Used Aftermarket Car Parts For Sale
0
03-02-2004 08:20 PM