My 3800 runs smooth, I feel like is should be quicker than it is. I drove a similar 3800 sc fiero a few years ago and I remember that one being a lot quicker. It takes me about 6.5-7 seconds from 0-60. It is a 5 speed so I would expect mid to high 5s, at the very least low 6s. Am I wrong is this feeling or is there an issue with my car?
I used the info on this page, http://www.3800supercharger.net/diagnosing.html, and everything seemed to be ok with the BBV. Solenoid was retracted at idle, and extended when the vacuum line was removed. Solenoid was retracted at idle, and extended when the enginve was revved at the throttle body.
I've never seen it "Posted', exactly" How Much BOOST" these superchargers actually create when working correctly. (with stock pulley and with optional pulley) anyone care to comment ?
I've never seen it "Posted', exactly" How Much BOOST" these superchargers actually create when working correctly. (with stock pulley and with optional pulley) anyone care to comment ?
All the boost research I've done suggests 10 psi. I also read that for every .1 inch you go down on the pulley is +1 psi.
My 3800 runs smooth, I feel like is should be quicker than it is. I drove a similar 3800 sc fiero a few years ago and I remember that one being a lot quicker. It takes me about 6.5-7 seconds from 0-60. It is a 5 speed so I would expect mid to high 5s, at the very least low 6s. Am I wrong is this feeling or is there an issue with my car?
Just throwing this out there since he said he has a 5-speed. Is there anything special that needs to be done with the wiring to make the PCM think the car is in drive? Doesn't the PCM pull timing and fuel whenever it believes the car is in park/neutral?
Just throwing this out there since he said he has a 5-speed. Is there anything special that needs to be done with the wiring to make the PCM think the car is in drive? Doesn't the PCM pull timing and fuel whenever it believes the car is in park/neutral?
Gary
No. You have to fool the PCM into thinking it has an automatic to perform a CASE relearn, but the PCM doesn't need any transmission inputs for proper engine performance with a manual trans.
Depends on what kinda tires you have, clutch, and how concerned you are about your tranny.
I went to the raceway. I launched pretty hard, spun the tires, went to second and spun the clutch. I rolled if off the line from there after, and still broke a hundred.
I have 225's on her rear and the engine has more torque then my clutch can stand. It's a centerforce, stronger than stock, but not up to the 3800sc. If you beef up the clutch, have good tires, then your fail point will be the tranny.
I figure I would rather my clutch spin then blow my trans.
Once engaged it holds pretty good, but the 3800sc can certainly overwhelm it. I'm reluctant to give it up since it is so streetable, and I had only a few hundred miles on it. Also, it is my fail-safe, it that it will blow well before the tranny.
Well I don't understand why it is showing no data. With the key on and even with the engine not running, you should be getting data. Either something isn't wired up right or your scanner has issues.
We need to know what the computer is saying the MAP sensor pressure is doing with the engine off so we can get a baseline. It SHOULD be 0 psi (or near 100 kpa manifold pressure) with the engine off. If this is indeed what it shows and it won't get into positive boost pressure (or above 100 kpa) when you give it full throttle, then that would tell us your engine isn't making boost.
Of course you could always tee in a boost gauge to the vacuum line you have connected to the lower intake manifold (which should be connected to the MAP sensor and fuel pressure regulator) and read boost pressure that way.
