97 Sonoma SYTY Conversion
- Thread starter DonHo32
- Start date
QUICK STORM
B.A.M.F. BMW Tech
Re: 97 Sonoma SYTY Conversion
if the computer doesn't know that a turbo is installed, how then will the computer compensate for the excess if air flow?(assuming your using the stock MAF). maybe your getting spark knock because your leaning out the mixture with to much air and not enough fuel for the PCM to recognize it. i also could be talking out of my ass, but:dunno: .
DonHo32 said:
if the computer doesn't know that a turbo is installed, how then will the computer compensate for the excess if air flow?(assuming your using the stock MAF). maybe your getting spark knock because your leaning out the mixture with to much air and not enough fuel for the PCM to recognize it. i also could be talking out of my ass, but:dunno: .
DonHo32
New member
Re: 97 Sonoma SYTY Conversion
The guy that did the program has set-up many newer s-10 PCM's for turbos. i am not sure how he accomplished this, but i have purchased a separate computer program for tuning my truck and i will know soon. I need to make other minor adjustments with fuel regulation and shift points. The spark knock is not bad at all right now, but then again i am not quite getting the boost numbers that i should be. I am a rookie when it comes to turbos but my room mate is an expert. I remember this coming up before but i am not sure how or what he did to get around this issue. I will talk to him this evening and let you know.
QUICK STORM said:
The guy that did the program has set-up many newer s-10 PCM's for turbos. i am not sure how he accomplished this, but i have purchased a separate computer program for tuning my truck and i will know soon. I need to make other minor adjustments with fuel regulation and shift points. The spark knock is not bad at all right now, but then again i am not quite getting the boost numbers that i should be. I am a rookie when it comes to turbos but my room mate is an expert. I remember this coming up before but i am not sure how or what he did to get around this issue. I will talk to him this evening and let you know.
QUICK STORM
B.A.M.F. BMW Tech
Re: 97 Sonoma SYTY Conversion
what type of info are you looking for. the widest might be a 255 or 265 depending of sidewall height and tire brand.
DonHo32 said:
what type of info are you looking for. the widest might be a 255 or 265 depending of sidewall height and tire brand.
QUICK STORM
B.A.M.F. BMW Tech
Re: 97 Sonoma SYTY Conversion
you might have to get the rear rims widened, if you want to stay with 16s.
DonHo32 said:
you might have to get the rear rims widened, if you want to stay with 16s.
DonHo32
New member
Re: 97 Sonoma SYTY Conversion
I was only part right. The part we ended up getting was actually from "Trick Flow" and not from GM (GM wanted twice as much). The part number for this elbow coming off the throttle body is TFS-3150800.
93ty475 said:Whatever it is, it sure would have saved me from using the silicone one I settled for on my a2a I/C project!! hook us up with a part number for future reference please....looks good man!! why the 97 computer? I'm retty sure the 749 ecm would be way better for you....
I was only part right. The part we ended up getting was actually from "Trick Flow" and not from GM (GM wanted twice as much). The part number for this elbow coming off the throttle body is TFS-3150800.
Re: 97 Sonoma SYTY Conversion
Nice job with the conversion.
Were you able to get your AC hooked up? I saw that is was disconnected and was wondering if you had custom lines made or what you did to get that hooked back up.
I have a 97 as well, and am considering buying syty manifods and adding the turbo.
Nice job with the conversion.
Were you able to get your AC hooked up? I saw that is was disconnected and was wondering if you had custom lines made or what you did to get that hooked back up.
I have a 97 as well, and am considering buying syty manifods and adding the turbo.
DonHo32
New member
Re: 97 Sonoma SYTY Conversion
A/C works great with all stock lines as well as all of the other components. The only thing that we have not been able to hook up yet is the cruise control which is not a big deal it just hasn't been a priority. The only problem that i really have had is the amount of crank case pressure. For some reason it is extremely high causing oil leaks. I am at a little bit of a loss. I know the rings are good and the pvc is functioning but still a lot of pressure.
StanIROCZ said:
A/C works great with all stock lines as well as all of the other components. The only thing that we have not been able to hook up yet is the cruise control which is not a big deal it just hasn't been a priority. The only problem that i really have had is the amount of crank case pressure. For some reason it is extremely high causing oil leaks. I am at a little bit of a loss. I know the rings are good and the pvc is functioning but still a lot of pressure.
dgoodhue
BuSTeD 4.3
Re: 97 Sonoma SYTY Conversion
If you have crank pressure at idle, most likely you have either a hole in a piston or broken rings. If its happening under boost maybe your PCV valves isn't sealing under boost and is pressurizing the engine crankcase. It has to be coming from somewhere, but infortunately its usually from the cylinder pressures leaking...
DonHo32 said:
If you have crank pressure at idle, most likely you have either a hole in a piston or broken rings. If its happening under boost maybe your PCV valves isn't sealing under boost and is pressurizing the engine crankcase. It has to be coming from somewhere, but infortunately its usually from the cylinder pressures leaking...
DonHo32
New member
Re: 97 Sonoma SYTY Conversion
What would you suggest for the application? I certainly do not want to generate more heat. I have a nos spray kit that I was going to install, but i wouldn't be using that at all times. By the way you make it sound something totally differnet needs to be done. Thanks for your help.
MikeRenz said:
What would you suggest for the application? I certainly do not want to generate more heat. I have a nos spray kit that I was going to install, but i wouldn't be using that at all times. By the way you make it sound something totally differnet needs to be done. Thanks for your help.
dgoodhue
BuSTeD 4.3
Re: 97 Sonoma SYTY Conversion
I don't have any first hand expereice with blow by and how the plugs look.
Look at #2 of the buyers guide.
http://www.syty.org/old/buyers.html
DonHo32 said:
I don't have any first hand expereice with blow by and how the plugs look.
Look at #2 of the buyers guide.
http://www.syty.org/old/buyers.html