Another turbo RA.....
Thread Starter
Newbie
Joined: Jan 2004
Posts: 33
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From: Saskatoon, canada
Another turbo RA.....
On the night of July 6, 2004, yet another turbo RA was born, possibly the first in Canada? However, I am having some issues with fuel and boost control. Turbo Tech, if you are out there I could use your experience to help me with why I am overboosting and loosing power at full throttle, but at half throttle it pulls hard and stays at around 3 psi. As well, it's getting way too much fuel, so much that it stalls after a run.
I am using the GReddy e-01 for boost control and the e-manage for fuel, but the e-manage isn't hooked up yet so the engine is running on factory settings right now. Maybe the computer just doesn't like boost and needs to be tuned? If anyone knows whats going on, please help!!
Oh yeah, who knows how to post pics? I don't.
T3/T4 hybrid turbo, external wastegate, Greddy Type S BOV, e-01 boost controller, e-manage, non-intercooled
I am using the GReddy e-01 for boost control and the e-manage for fuel, but the e-manage isn't hooked up yet so the engine is running on factory settings right now. Maybe the computer just doesn't like boost and needs to be tuned? If anyone knows whats going on, please help!!
Oh yeah, who knows how to post pics? I don't.
T3/T4 hybrid turbo, external wastegate, Greddy Type S BOV, e-01 boost controller, e-manage, non-intercooled
Evolving Member
Joined: Jan 2004
Posts: 258
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From: Puerto Rico
You answered your own question with this..!
but the e-manage isn't hooked up yet
What wastegate are you using..(spring PSI seting)?
What is overboost to you?
Did you preassurerized the MAF or pull-throught Turbo intake..?
Do you have A/F ratio meter? Exh Temp gauge..? What was the higher reading while this..?
I need to know this facts in order to help you...If you don't have any of these gauges or dont hav an idea on what they are..then I recomend you to go find a good profesional tuner and a dyno and set the car before you damage the engine..
but the e-manage isn't hooked up yet
What wastegate are you using..(spring PSI seting)?
What is overboost to you?
Did you preassurerized the MAF or pull-throught Turbo intake..?
Do you have A/F ratio meter? Exh Temp gauge..? What was the higher reading while this..?
I need to know this facts in order to help you...If you don't have any of these gauges or dont hav an idea on what they are..then I recomend you to go find a good profesional tuner and a dyno and set the car before you damage the engine..
Thread Starter
Newbie
Joined: Jan 2004
Posts: 33
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From: Saskatoon, canada
Thanx for the concern Thunder but i'm not stupid, nor is the guy with 25 years of mechanical experience helping me. All i'm saying is that since Turbo Tech used the
e-01/e-manage set-up, as well as going through the experience of turboing this car, maybe he has gone through these problems.
Anyways, the wastegate has a 6 psi spring. The two vacuum lines running off the wastegate I have tried switching between the boost controller, the intake manifold and the atmosphere but no matter what, it doesn't seem to change the way it boosts.
What I mean by "overboost" is that the boost gauge climbs relatively slow past the set boost in the controller and tops out at around 9psi for no apparent reason. However, I have felt 9psi, and this is definitaly not 9psi, it's more sluggish than stock. Again, if I have the throttle around 50%, just enough to maintain about 3psi, it feels like a good 3 psi.
On the intake, the MAF is just after the filter and before the turbo and recirculation tube for the bypass valve. It's also pointed the right way, I found out the hard way that these ones don't work backwards.
I don't have any gauges besides the boost guage that's on the display of the e-01 unit. I know it's running really rich because I can smell it when I boost it up. The car is scheduled to get tuned and dyno'd in a few weeks, but even without tuning the car should still run better than this.
I hope this is a bit more clear, maybe now you can help me.
e-01/e-manage set-up, as well as going through the experience of turboing this car, maybe he has gone through these problems.
Anyways, the wastegate has a 6 psi spring. The two vacuum lines running off the wastegate I have tried switching between the boost controller, the intake manifold and the atmosphere but no matter what, it doesn't seem to change the way it boosts.
What I mean by "overboost" is that the boost gauge climbs relatively slow past the set boost in the controller and tops out at around 9psi for no apparent reason. However, I have felt 9psi, and this is definitaly not 9psi, it's more sluggish than stock. Again, if I have the throttle around 50%, just enough to maintain about 3psi, it feels like a good 3 psi.
On the intake, the MAF is just after the filter and before the turbo and recirculation tube for the bypass valve. It's also pointed the right way, I found out the hard way that these ones don't work backwards.
I don't have any gauges besides the boost guage that's on the display of the e-01 unit. I know it's running really rich because I can smell it when I boost it up. The car is scheduled to get tuned and dyno'd in a few weeks, but even without tuning the car should still run better than this.
I hope this is a bit more clear, maybe now you can help me.
Evolving Member
Joined: Jan 2004
Posts: 258
Likes: 0
From: Puerto Rico
Sorry Turbo guy..! I didnt meant to sound harsh... Okay first of all I see that you are pulling througth the Maf's with the turbo and not doing it preasurized.. I have a 2000 Celica GTS that I turbocharged this week and it uses the same MAF's as the ralliart. The way I conected the MAF was like stock and I just preasurized it (running boost through) and it runs very good and has great trottle response. As for tuning I use 4 550 injectors and a Split Second fuel modifyer P-back ECU to lean the mixture at low RPMS and and adjust by RPM and Boost. Maybe you can install the maf in the other location and see how the engine reacts.. Second; try conecting the waste gate first without boost controller just with the 6psi spring and the boost line conected directly to the preasure side of the intake and see if you have boost creep. If it does creep past the 6psi the the problem lies in the wastegate maybe has a restricted exhaust..! If you dont have an A/F ratio gauge or EXH Temp pyrometer I recomend you to buy one bc's thats the only way for you to know if your engine is running too rich or lean..
Hope this helps..
T-rush.
Hope this helps..
T-rush.
Originally Posted by turboguy 03/04B
Thanx for the concern Thunder but i'm not stupid, nor is the guy with 25 years of mechanical experience helping me. All i'm saying is that since Turbo Tech used the
e-01/e-manage set-up, as well as going through the experience of turboing this car, maybe he has gone through these problems.
Anyways, the wastegate has a 6 psi spring. The two vacuum lines running off the wastegate I have tried switching between the boost controller, the intake manifold and the atmosphere but no matter what, it doesn't seem to change the way it boosts.
What I mean by "overboost" is that the boost gauge climbs relatively slow past the set boost in the controller and tops out at around 9psi for no apparent reason. However, I have felt 9psi, and this is definitaly not 9psi, it's more sluggish than stock. Again, if I have the throttle around 50%, just enough to maintain about 3psi, it feels like a good 3 psi.
On the intake, the MAF is just after the filter and before the turbo and recirculation tube for the bypass valve. It's also pointed the right way, I found out the hard way that these ones don't work backwards.
I don't have any gauges besides the boost guage that's on the display of the e-01 unit. I know it's running really rich because I can smell it when I boost it up. The car is scheduled to get tuned and dyno'd in a few weeks, but even without tuning the car should still run better than this.
I hope this is a bit more clear, maybe now you can help me.
e-01/e-manage set-up, as well as going through the experience of turboing this car, maybe he has gone through these problems.
Anyways, the wastegate has a 6 psi spring. The two vacuum lines running off the wastegate I have tried switching between the boost controller, the intake manifold and the atmosphere but no matter what, it doesn't seem to change the way it boosts.
What I mean by "overboost" is that the boost gauge climbs relatively slow past the set boost in the controller and tops out at around 9psi for no apparent reason. However, I have felt 9psi, and this is definitaly not 9psi, it's more sluggish than stock. Again, if I have the throttle around 50%, just enough to maintain about 3psi, it feels like a good 3 psi.
On the intake, the MAF is just after the filter and before the turbo and recirculation tube for the bypass valve. It's also pointed the right way, I found out the hard way that these ones don't work backwards.
I don't have any gauges besides the boost guage that's on the display of the e-01 unit. I know it's running really rich because I can smell it when I boost it up. The car is scheduled to get tuned and dyno'd in a few weeks, but even without tuning the car should still run better than this.
I hope this is a bit more clear, maybe now you can help me.
Thread Starter
Newbie
Joined: Jan 2004
Posts: 33
Likes: 0
From: Saskatoon, canada
Thanx for the info, I appreciate all the help I can get. For now i'm just running stock injectors but that upgrade will have to come in the near future. Hopfully switching the MAF position will help the situation, but I think that turbo tech has his MAF in the same place as mine, non pressurized.
I noticed that turbo techs' BOV vents to the atmosphere, how does that not throw off his A/F ratio? Does your Celica's BOV vent to the atmos. too? What order do you have the MAF and the BOV? I'm just wondering what set-up would work best or what even works period.
All this adjusting is endless.... i hope I can figure it out soon!
I noticed that turbo techs' BOV vents to the atmosphere, how does that not throw off his A/F ratio? Does your Celica's BOV vent to the atmos. too? What order do you have the MAF and the BOV? I'm just wondering what set-up would work best or what even works period.
All this adjusting is endless.... i hope I can figure it out soon!
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Evolving Member
Joined: Jan 2004
Posts: 258
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From: Puerto Rico
Turbo guy my BOV is venting to the atmosfere with no prob..When you preasurize the MAF you have to put the BOV before the MAF so it does not affect the readings. It would be like this Air-BOV-MAF-Trottlebody-intake..Since the air is released(BOV +'s shift) before being metered by the MAF it will not cause hesitation.
T-rush
T-rush
Thread Starter
Newbie
Joined: Jan 2004
Posts: 33
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From: Saskatoon, canada
Originally Posted by kingsize_glitch
turboguy, u doin this for your car or a are you a retailer....?
And how I learn is by doin' it myself, and making deals with people who can teach me more!!
Thread Starter
Newbie
Joined: Jan 2004
Posts: 33
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From: Saskatoon, canada
Originally Posted by Thunder-rush
Turbo guy my BOV is venting to the atmosfere with no prob..When you preasurize the MAF you have to put the BOV before the MAF so it does not affect the readings. It would be like this Air-BOV-MAF-Trottlebody-intake..Since the air is released(BOV +'s shift) before being metered by the MAF it will not cause hesitation.
T-rush
T-rush
This makes sense, but I also heard that putting the MAF on the pressure side burns it out. Maybe it's because there is way more molecules hitting the surface of the sensor, and the material isn't designed to handle that much air hitting it. It could also be that there is always oil getting into the pressure side of the intake from either the turbo or the vacuum line coming from the valve cover. On all of the turbocharged Talons/Eclipses I've seen, even the one I owned that was in emaculate condition, they had either pools of oil or just a slight film of oil covering the entire intake system. Either way, oil will leak into the intake.
