Questions....
Passenger
Posts: n/a
Questions....
Ok few questions. Any of you guys with the t78 ever leave your wastegate dump open and not puting it back into the exhaust? This a good or bad thing. Also, I heard somone mention doing somthing to your oil pump so it stays on to give constant pressure to the engine to make sure everything stays lubed real well. Ever heard of this? Answers would be great. Oh yeah! If I have a t78 with a front mount and a fuel pump with FPR ect can I run stock injectors at around 12lbs of boost with accompanied pettit racing chip?
official pussy inspector
Joined: Jan 2003
Posts: 109
Likes: 0
From: St. Louis
As far as the wastegate dump goes, I don't know why you would want it vented to atmosphere as it is loud and sounds horrible. The extra hp from added exhaust flow is probably negligiable. Don't know anything about the oil pump other than the stock lubrication system should be sufficient. The type of oil you use is paramount however. If you are worried about a lack of lubrication, use Red Line synthetic and amsoil premix. About the injectors, I am frankly surprised at the fact that you didn't upgrade them when you went single. This should be your next modification, especially since you have other airflow mods.
Lives on the Forum
Joined: Dec 2001
Posts: 14,716
Likes: 10
From: San Lorenzo, California
You can't run a Pettit ECU with a single turbo like that. You'll need a stand-alone like the Power FC. You certainly need larger secondary injectors.
No offense but it doesn't seem like you spent much time researching your single turbo purchase. A few hours spent in this forum or the single turbo forum would have answered all of these questions.....
No offense but it doesn't seem like you spent much time researching your single turbo purchase. A few hours spent in this forum or the single turbo forum would have answered all of these questions.....
Passenger
Posts: n/a
I didnt purchase the turbo. Bought the car off a guy who did all the work under 2000miles ago. I dont understand how the hell he did it if you cant use the pettit chip cause thats what he said he used. That and he has a bigass fuel pressure regulator under the hood. Still running stock injectors at 12lbs of boost with a bigass fuel pump.
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Senior Member
Joined: Mar 2001
Posts: 587
Likes: 1
From: Jax, Fl.
Very high fuel pressure can kill a fuel pump. You should think about getting a better ECU since the Pettit doesn't allow any ignition tuning, &bigger injectors.
Your current setup is far from optimal. I would even say it's pretty dangerous.
As for oil. It sounds like your talking about the thermopellet plug. I do recomend this as well as E-shaft jets but the jets require a motor rebuild.
The thermopellet plug can be done with the motor in the car but you run the very real risk of dropping the front needle bearing (meaning you'd have to rebuild the motor).
Where in Florida are you located?
Your current setup is far from optimal. I would even say it's pretty dangerous.
As for oil. It sounds like your talking about the thermopellet plug. I do recomend this as well as E-shaft jets but the jets require a motor rebuild.
The thermopellet plug can be done with the motor in the car but you run the very real risk of dropping the front needle bearing (meaning you'd have to rebuild the motor).
Where in Florida are you located?
Senior Member
Joined: Jan 2002
Posts: 725
Likes: 14
From: Northern California
not dumping the wastegate can cause boost problems i've heard because the flow isn't enough for the wastegate causing spikes..etc..that's what i heard i'm not sure, but i'll be dumping my exhaust gases out because it's sure sounds damn good! people who thinks open vent wastegate doesn't sound good than you SUCK!
-mike
-mike
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