waiting on #s 
Supercharged 383: It's dyno time!
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From: http://www.mphparts.com 800-364-1975
Supercharged 383: It's dyno time!
I just talked to Mike @ Norris Motorsports and my car is on the dyno right now!!! Wish me luck!!! Assuming nothing breaks or is wrong with the car I should have some numbers posted up here no later than 7PM EST!
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From: http://www.mphparts.com 800-364-1975
Re: Supercharged 383: It's dyno time! (diynoob)
Hey guys, I need some help. I just talked to Mike again and the car is having problems holding boost. It is getting up to 5 pounds and then dropping off after that. He thinks it might be belt slip. He mentioned his guys checked the BOV and no boost is leaking out of there. This is the A&A single intercooler kit.
Any ideas what might be going on? He mentioned belt tension is real good and this is an 8 rib kit -- so we're both at a loss as to why the belt could be slipping?
I guess on the plus side, it made about 500tq with only 5 pounds at about 4000RPM...
[Modified by diynoob, 5:23 PM 6/18/2004]
Any ideas what might be going on? He mentioned belt tension is real good and this is an 8 rib kit -- so we're both at a loss as to why the belt could be slipping?
I guess on the plus side, it made about 500tq with only 5 pounds at about 4000RPM...
[Modified by diynoob, 5:23 PM 6/18/2004]
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Re: Supercharged 383: It's dyno time! (QuickSilver2002)
It's an ATI 3.85" 8 rib pulley. Mike didn't see any belt dust when I talked to him. One of his techs reported a high pitched whine but that could be unrelated.
They also mentioned that fuel pressure dropped off when boost dropped off which makes sense since it's a boost referenced regulator.
They also mentioned that fuel pressure dropped off when boost dropped off which makes sense since it's a boost referenced regulator.
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Re: Supercharged 383: It's dyno time! (Terry Burger)
Does the AF/timing look ok?
Burning Brakes
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Re: Supercharged 383: It's dyno time! (diynoob)
Check the throttle body blade is opening and staying open at WOT. IF it closing the amount of air flow will be limited and boost inside the intake will not go up (though it may creep up a little).
Melting Slicks
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From: Tx
Re: Supercharged 383: It's dyno time! (Hool97)
humm.. it's hard to help much over the internet in these situations.
Here are a few ideas:
first, check for leaks in all the plumbing and intercooler.
If that shows nothing, focus on the belt. Try a larger pulley (if you can find one handy) it would be best if it was one of the reichard racing pulleys. I really don't like the way the ATI pulleys don't match up with the ribs on the belts. If a larger pulley shows more boost you know it is belt slip related.
Keep us posted on the progress.
Man, it seems like everyone is having trouble with new setups these days. I'm sure it will get resolved soon.
Here are a few ideas:
first, check for leaks in all the plumbing and intercooler.
If that shows nothing, focus on the belt. Try a larger pulley (if you can find one handy) it would be best if it was one of the reichard racing pulleys. I really don't like the way the ATI pulleys don't match up with the ribs on the belts. If a larger pulley shows more boost you know it is belt slip related.
Keep us posted on the progress.
Man, it seems like everyone is having trouble with new setups these days. I'm sure it will get resolved soon.
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Re: Supercharged 383: It's dyno time! (QuickSilver2002)
humm.. it's hard to help much over the internet in these situations.
Here are a few ideas:
first, check for leaks in all the plumbing and intercooler.
If that shows nothing, focus on the belt. Try a larger pulley (if you can find one handy) it would be best if it was one of the reichard racing pulleys. I really don't like the way the ATI pulleys don't match up with the ribs on the belts. If a larger pulley shows more boost you know it is belt slip related.
Keep us posted on the progress.
Man, it seems like everyone is having trouble with new setups these days. I'm sure it will get resolved soon.
Here are a few ideas:
first, check for leaks in all the plumbing and intercooler.
If that shows nothing, focus on the belt. Try a larger pulley (if you can find one handy) it would be best if it was one of the reichard racing pulleys. I really don't like the way the ATI pulleys don't match up with the ribs on the belts. If a larger pulley shows more boost you know it is belt slip related.
Keep us posted on the progress.
Man, it seems like everyone is having trouble with new setups these days. I'm sure it will get resolved soon.
Good luck!
JB
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Re: Supercharged 383: It's dyno time! (jbsblownc5)
Thanks guys for your suggestions. I talked to Andy late today (gotta love that 3 hour EST to PST time difference, I called at 8:30PM EST and Andy was still at his shop since it was only 5:30PM PST). He talked to Mike and it sounds like it is indeed belt slip related. I have my fingers crossed that it's belt slip because if it is, there's a strong chance my tune will be finished tomorrow still. If it's not belt slip then it might be another week or so before I get the car.
Hool97: I too was encouraged by the ~500tq at 5psi number. Those were ballpark numbers, hopefully the final output is equally good. With the 3.85 pulley I am planning on 10-12psi of boost. So I am hoping for 600rwtq! Also, interesting thought on the throttle blade. I'll pass that along to Mike and see what he thinks.
[Modified by diynoob, 10:15 PM 6/18/2004]
Hool97: I too was encouraged by the ~500tq at 5psi number. Those were ballpark numbers, hopefully the final output is equally good. With the 3.85 pulley I am planning on 10-12psi of boost. So I am hoping for 600rwtq! Also, interesting thought on the throttle blade. I'll pass that along to Mike and see what he thinks.
[Modified by diynoob, 10:15 PM 6/18/2004]
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Re: Supercharged 383: It's dyno time! (urslooow)
No luck picking up the car this weekend. I'm a little disappointed and Mike Norris is too. Even though I'm not doing any of the work, both of us are a little burned out on getting this car done. There have been various contributing issues at work here but at this point it looks like it's just a belt slip problem which should be solved during this week.
I'll post back the moment I have a more meaningful dyno number. If the rest of the power and torque curves hold true to what we've already seen (~500tq @5psi) then this car should be a monster at 10-12psi when the belt's not slipping and the tune is 100% dialed in.
I'll post back the moment I have a more meaningful dyno number. If the rest of the power and torque curves hold true to what we've already seen (~500tq @5psi) then this car should be a monster at 10-12psi when the belt's not slipping and the tune is 100% dialed in.
you know it will be worth it, But WAITING SUCKS 
