I am starting this thread in hopes of answering some questions regarding the post turbo conversion of 2.3 Mustangs. I don't know if I should put this in the tech section or here, if it belongs elsewhere I am sure one of the Mods will put it there (please PM me if you do). I have a couple of questions regarding the performance of my 2.3T.
This is the first turbocharged car that I have ever built, driven, worked on, or even owned. So far I am thouroughly pleased with its performance over the N/A 2.3.
My engine is from a 1985 TC (completely rebuilt with 8:1 compression and a 2.3 N/A head with turbo valves), I am running #35 injectors, small VAM, PC1 ECU, E3 (uncracked) exhaust manifold, T3 turbo (.60/.63), a 91 2.3 roller cam, this all comes into/out of a stock intake and 2 1/4 exhaust, and I am running a WC Borg-Warner T-5. I am also only running the stock wastegate.
My first question is about how this is supposed to run. I have read all of the basics of turbocharging so I am familiar with it. My question is more about driveability. I begin building boost at about 2500 RPMs with full at about 3K. This will only happen if my throttle is depressed at least 2/3 of the way down.
--My car builds boost (2-4 lbs.) at very little throttle when climbing hills.
--The turbo lag is almost never noticeable to me, It either runs like my
2.3 N/A did or it is boosting. I may just not recognize the lag.
--Running half throttle at 3K=no boost only about 10 Hg(vacuum)
If I drop the throttle all the way there is almost instananeous full boost.
Is my car running normally or do I need to fix something. It runs reliably and is much fun.
Now for a couple of technical questions, I adjusted my TPS and got the base voltage set at .95 volts, the sweep is without hitch but the highest voltage I can get it to read is around 4.1 volts. Is this sensor bad and am I losing some of my top end power because of it?
Next, I was under the impression that not really getting on the car until it was warm was for the benefit of having warm oil going into the turbo to keep from siezing it up. My brother, who has experience with turbos from driving heavy equipment says it is more for the benefit of the manifold (to keep it and the mating surfaces from warping). I can see the logic of both, so I at least warm up my car to operating temp (one mark on the guage bare minimum) before dropping the hammer. Sometimes circumstances make it so that I don't have time for warmup/cooldown. I read a couple years back that driving it reasonably can make up for this.
--How reasonable is reasonably, I try not to run less than 10 Hg during these times, is this conservative enough to keep from damaging anything or should I granny it more?
Let us discuss these things, perhaps we can enlighten many with the knowledge that ensues.
This is the first turbocharged car that I have ever built, driven, worked on, or even owned. So far I am thouroughly pleased with its performance over the N/A 2.3.
My engine is from a 1985 TC (completely rebuilt with 8:1 compression and a 2.3 N/A head with turbo valves), I am running #35 injectors, small VAM, PC1 ECU, E3 (uncracked) exhaust manifold, T3 turbo (.60/.63), a 91 2.3 roller cam, this all comes into/out of a stock intake and 2 1/4 exhaust, and I am running a WC Borg-Warner T-5. I am also only running the stock wastegate.
My first question is about how this is supposed to run. I have read all of the basics of turbocharging so I am familiar with it. My question is more about driveability. I begin building boost at about 2500 RPMs with full at about 3K. This will only happen if my throttle is depressed at least 2/3 of the way down.
--My car builds boost (2-4 lbs.) at very little throttle when climbing hills.
--The turbo lag is almost never noticeable to me, It either runs like my
2.3 N/A did or it is boosting. I may just not recognize the lag.
--Running half throttle at 3K=no boost only about 10 Hg(vacuum)
If I drop the throttle all the way there is almost instananeous full boost.
Is my car running normally or do I need to fix something. It runs reliably and is much fun.
Now for a couple of technical questions, I adjusted my TPS and got the base voltage set at .95 volts, the sweep is without hitch but the highest voltage I can get it to read is around 4.1 volts. Is this sensor bad and am I losing some of my top end power because of it?
Next, I was under the impression that not really getting on the car until it was warm was for the benefit of having warm oil going into the turbo to keep from siezing it up. My brother, who has experience with turbos from driving heavy equipment says it is more for the benefit of the manifold (to keep it and the mating surfaces from warping). I can see the logic of both, so I at least warm up my car to operating temp (one mark on the guage bare minimum) before dropping the hammer. Sometimes circumstances make it so that I don't have time for warmup/cooldown. I read a couple years back that driving it reasonably can make up for this.
--How reasonable is reasonably, I try not to run less than 10 Hg during these times, is this conservative enough to keep from damaging anything or should I granny it more?
Let us discuss these things, perhaps we can enlighten many with the knowledge that ensues.
