| 420A Bolt-on Tech Intake, exhaust, ignition, fuel system, cooling, etc - specific to 2G N/T DSMs. New Members must limit their 420A tech posts to this forum. |
07-14-2007, 04:12 PM
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#301 (permalink)
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Proven Member
From: Bear, Delaware
Region: Tri State
Registered: Aug 2004
Posts: 1,029
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Quote:
Originally Posted by XMasta19
If your turbo is still making power and increasing in boost, what do you need a wastegate for?
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To build boost faster. You essentially trick the wastegate into thinking there is more or less boost then there actually is.
Refer to the previous posts regarding that co2 system.
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07-14-2007, 04:16 PM
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#302 (permalink)
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Proven Member
From: The "O", Florida
Region: Southeast
Registered: Jul 2004
Posts: 1,291
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Quote:
Originally Posted by Blitzeclips
To build boost faster. You essentially trick the wastegate into thinking there is more or less boost then there actually is.
Refer to the previous posts regarding that co2 system.
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As my question stated, since the turbo is constantly spooling and still building boost at redline...then why even need a wastegate to limit said boost, if regulation of boost is actually not needed?
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-Xavier
...fastest Eclipse Type RS+T in Alaska
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07-14-2007, 04:59 PM
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#303 (permalink)
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From: Hutchinson, Minnesota
Region: Midwest
Registered: Apr 2005
Posts: 632
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Quote:
Originally Posted by XMasta19
As my question stated, since the turbo is constantly spooling and still building boost at redline...then why even need a wastegate to limit said boost, if regulation of boost is actually not needed?
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For the lower gears, he might not even untilize the wastegate at all, but for the higher gears, you will obviously need the wastegate to open.
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Mike
Last edited by VelocitąPaola : 07-21-2007 at 07:20 AM.
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07-14-2007, 05:46 PM
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#304 (permalink)
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N/T DSM Wiseman
From: Elkhart, Indiana
Region: Midwest
Registered: Jan 2005
Posts: 1,893
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Quote:
Originally Posted by DSM-ZERO
with reguards to the Co2
I agree on the turbo being able to spool faster and the power curve comming on sooner, being able to make more power at lower RPM's. Than a waste gate system with out Co2.
BUT
if the Turbo is Still making power at red line .....if the turbo can spool faster it will move the power curve to the left 200-500rpm wouldnt that produce more power on the top end also.
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No, it would still be the same turbo, at the same boost level, thus moving the same amount of air. The power on the top end would not be affected. If you had two dyno runs, one with the c02 system regulating boost to 8psi, (example) and the other with only a 8psi spring and no BC, the only difference would be a steeper slope on the leading edge of the dyno graph with the c02, vs. the graph without it.
For some reason I seem to be having a difficult time describing this. Perhaps somebody with a better sense of the English language could say it more clearly.
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-Locke
'99 OZ Eclipse
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07-14-2007, 07:07 PM
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#305 (permalink)
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From: South Bend, Indiana
Region: Midwest
Registered: Jul 2006
Posts: 167
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You will reach max boost quicker using co2 than using a traditional spring.
Quicker spool doesn't = more Hp; Just more power / boost earlier.
Bad example, but turbo with lag vs turbo without lag.
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07-14-2007, 07:25 PM
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#306 (permalink)
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DSM N/T Moderator
From: Ft. Lauderdale/Boston, Florida
Region: Southeast
Registered: Jun 2005
Posts: 3,088
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Quote:
Originally Posted by Locke
No, it would still be the same turbo, at the same boost level, thus moving the same amount of air. The power on the top end would not be affected. If you had two dyno runs, one with the c02 system regulating boost to 8psi, (example) and the other with only a 8psi spring and no BC, the only difference would be a steeper slope on the leading edge of the dyno graph with the c02, vs. the graph without it.
For some reason I seem to be having a difficult time describing this. Perhaps somebody with a better sense of the English language could say it more clearly.
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I think you summed it up very nicely. I think the only other way to explain would be with a picture... notice that the onset of power is quicker, but not the peak power. I guess it's somewhat worth it for an all out drag car, but I vaguely remember hearing that this car was supposed to be somewhat streetable. I guess that goal went out the window a long time ago. Either way, I don't think the CO2 system is totally necessary... you'll notice many others are just using ridiculously strong springs. Electronic actuation would be another interesting idea.
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-Paul
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07-14-2007, 09:14 PM
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#308 (permalink)
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From: The "O", Florida
Region: Southeast
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This is obviously a track slut or close to it pretty soon...so as I said, wastegate is unnecessary hahaha.
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-Xavier
...fastest Eclipse Type RS+T in Alaska
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07-15-2007, 01:20 AM
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#309 (permalink)
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From: Albuquerque, New Mexico
Region: Southwest
Registered: Dec 2002
Posts: 609
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Quote:
Originally Posted by XMasta19
This is obviously a track slut or close to it pretty soon...so as I said, wastegate is unnecessary hahaha.
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Hell if the motor can handle the pressure and the turbo can handle the rpm's... who needs a wastegate!
Your foot turns into the manual boost controller! You want more boost, press your foot a little harder 
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-Josh
97 Eclipse GS
04 Jeep WJ 4x4 V8
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07-15-2007, 05:55 AM
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#310 (permalink)
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From: East Hampton, Connecticut
Region: New England
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Locke and Velocita, I think those both are both very good good descriptions (and illustrations). I understood after my first question about it, but, well, I tried to explain it but it wasn't happening.
I just wrote something more in regards to flattening out the curve, then erased it because it would probably have caused more confusion  . I think this has been adequetly explained in that it will not generate more peak horsepower, but give you more control over the horsepower that you have.
MB
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07-15-2007, 07:58 AM
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#311 (permalink)
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N/T DSM Wiseman
From: Elkhart, Indiana
Region: Midwest
Registered: Jan 2005
Posts: 1,893
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Great. Now that that is all taken care of, I think it is about time for more build pics, and new discussion. 
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-Locke
'99 OZ Eclipse
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07-18-2007, 12:50 PM
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#312 (permalink)
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From: Castle Rock, Colorado
Region: Rocky Mountain
Registered: Nov 2002
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the coil pack will be replaced with electromotives Direct Fire Unit
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RAM
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07-18-2007, 12:51 PM
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#313 (permalink)
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From: Castle Rock, Colorado
Region: Rocky Mountain
Registered: Nov 2002
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Quote:
Originally Posted by Blitzeclips
I concur.
I want to see a damn dyno sheet! 
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I know
I want to see the DYNO sheet also
I cant wait
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RAM
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07-18-2007, 12:56 PM
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#314 (permalink)
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From: Castle Rock, Colorado
Region: Rocky Mountain
Registered: Nov 2002
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here some pics of the Dual 44mm gate set up
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RAM
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07-18-2007, 12:58 PM
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#315 (permalink)
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Proven Member
From: Castle Rock, Colorado
Region: Rocky Mountain
Registered: Nov 2002
Posts: 1,018
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Here is the 4'' v-band into the TB
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RAM
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07-18-2007, 12:58 PM
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#316 (permalink)
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From: New York, New York
Region: Southeast
Registered: Jun 2005
Posts: 230
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 ....Damn!! I haven't been on here in a while but it sure looks like the car is coming along well. The more I think about the fact that you have the price of a brand new Evo MR invested in your car the more I wonder if someone can love their car that much. Hopefully someday I'll get to that point in life (at least when I can afford it anyway  ).
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2GB EvoIII 16G Powered GST
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07-18-2007, 01:04 PM
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#317 (permalink)
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From: Castle Rock, Colorado
Region: Rocky Mountain
Registered: Nov 2002
Posts: 1,018
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Quote:
Originally Posted by RWKustoms
 ....Damn!! I haven't been on here in a while but it sure looks like the car is coming along well. The more I think about the fact that you have the price of a brand new Evo MR invested in your car the more I wonder if someone can love their car that much. Hopefully someday I'll get to that point in life (at least when I can afford it anyway  ).
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That was funny dude.
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RAM
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07-18-2007, 02:29 PM
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#318 (permalink)
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From: Castle Rock, Colorado
Region: Rocky Mountain
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more pics on the way
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RAM
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07-18-2007, 02:57 PM
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#319 (permalink)
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From: Cleveland, Ohio
Region: Midwest
Registered: Jun 2006
Posts: 368
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Damn Zero, Looks Great!! Who did the welds on that Exhaust Manifold? They're Perfect!
Good Luck with this Project I hope to see it break 9's
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