alternative location for wg
03-15-2007, 08:41 AM
#12
0.0 BAR
Thread Starter
Join Date: Oct 2003
Posts: 0
Re: alternative location for wg
Originally Posted by Inquisition
I do think the WG should not be plumbed into the DP so early. It will create quite a bit of turbulance around the turbine which will reduce the efficiency of the turbine. Routing it into the exhaust is fine, but so close to the turbine, not so much. The only benefit I can see with this method is the fact flex pipe isn't needed on the dump tube.
if you are refering to just the fact that the shape of the pipe will generally create turbulence due to the wg's proximity to the turbine then yes, perhaps it might, but the transition is so smooth i can't see it being that much of a problem on a car that will probably only see 8psi. on a car that is seeing 25+psi it may have more of an impact, but then again, cars running that kind of pressure usually have open dump tubes don't they.
03-15-2007, 12:42 PM
#13
1.5 BAR
Join Date: Apr 2006
Posts: 676
Re: alternative location for wg
Turbine efficiency is ultra important always. If your turbine does a poor job displacing exhaust then there is a significantly higher chance of reversion. You are increasing back pressure right in front of the turbine. This makes the air not want to leave the exhaust manifold as much and when it does, it cannot leave as quickly because of the WG dumping into its path. I'm not saying its going to cost a lot of horsepower, but I'm fairly certain if you routed it into the downpipe further back, you would see an increase in power.
03-17-2007, 12:06 AM
#16
3.0 BAR
Join Date: Sep 2003
Posts: 3,751
Re: alternative location for wg
As always, Nice Work Aaron. We have to come see some of this work in person soon!!!
As to this, we have 4 PF Engine stans for about 3-4 year with not problems. Princess Auto is the ----!!!!!
Originally Posted by Zeniceguycrx
oh ya powerfist engine stands 
where steel toe shoes or
where steel toe shoes or
03-17-2007, 12:08 AM
#17
1.5 BAR
Join Date: Apr 2006
Posts: 1,147
Re: alternative location for wg
Originally Posted by JK_Motorsports
As always, Nice Work Aaron. We have to come see some of this work in person soon!!!
As to this, we have 4 PF Engine stans for about 3-4 year with not problems. Princess Auto is the ----!!!!!
As to this, we have 4 PF Engine stans for about 3-4 year with not problems. Princess Auto is the ----!!!!!
03-17-2007, 12:21 PM
#19
1.0 BAR
Join Date: Oct 2006
Posts: 249
Re: alternative location for wg
Originally Posted by Inquisition
Turbine efficiency is ultra important always. If your turbine does a poor job displacing exhaust then there is a significantly higher chance of reversion. You are increasing back pressure right in front of the turbine. This makes the air not want to leave the exhaust manifold as much and when it does, it cannot leave as quickly because of the WG dumping into its path. I'm not saying its going to cost a lot of horsepower, but I'm fairly certain if you routed it into the downpipe further back, you would see an increase in power.
With the wg dumped into the exhaust closer to the o2 housing area... (I guess the first bend in your downpipe off the flange)... It actually sucked away 35whp because it was creating turbulence in the exhaust.
Remove the merge into the exhaust.. picked up a muffler that they put on 2 stroke dirtbikes... and ran the wg dump through that muffler and out... quieted it down.. and he gained that 35 back.
03-17-2007, 12:22 PM
#20
1.0 BAR
Join Date: Oct 2006
Posts: 249
Re: alternative location for wg
Originally Posted by stevenb
Correct, a friend with a gt3076r on his srt4 noticed the same.
With the wg dumped into the exhaust closer to the o2 housing area... (I guess the first bend in your downpipe off the flange)... It actually sucked away 35whp because it was creating turbulence in the exhaust.
Remove the merge into the exhaust.. picked up a muffler that they put on 2 stroke mini dirtbikes... and ran the wg dump through that muffler and out... quieted it down.. and he gained that 35 back.
With the wg dumped into the exhaust closer to the o2 housing area... (I guess the first bend in your downpipe off the flange)... It actually sucked away 35whp because it was creating turbulence in the exhaust.
Remove the merge into the exhaust.. picked up a muffler that they put on 2 stroke mini dirtbikes... and ran the wg dump through that muffler and out... quieted it down.. and he gained that 35 back.
