got the connector today John S, thanks again!
which supercharger?
Captain Obvious
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From: Cambridge, Ontario, Canada
I have been somewhat bothered by the fact that retarding the timing under boost is not really possible on the 928. On the 32V even retarding the base timing is not really possible.
I have 2 MSD 6BTMs (has a boost retard module built into them) on the shelf that could work for the 32V engines, however I read that Mark fried 2 of these units when he tried to connect them to his turboed early 32V. the instructions came directly from MSD, and yet the units still failed. It would be great if we could find a way to correctly hook up these units. The MSD6BTM is very popular in the aftermarket turbo/SC crowd and they work well if they are connected correctly.
I have 2 MSD 6BTMs (has a boost retard module built into them) on the shelf that could work for the 32V engines, however I read that Mark fried 2 of these units when he tried to connect them to his turboed early 32V. the instructions came directly from MSD, and yet the units still failed. It would be great if we could find a way to correctly hook up these units. The MSD6BTM is very popular in the aftermarket turbo/SC crowd and they work well if they are connected correctly.
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From: Up Nort
Originally Posted by Imo000
I have been somewhat bothered by the fact that retarding the timing under boost is not really possible on the 928. On the 32V even retarding the base timing is not really possible.
Addict
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Joined: Mar 2005
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From: Austin, Texas
Contact Louie Ott. The SMT6 retards base timing maps or with the onset of boost. I'll be specing these as part of my stage 3 turbo kit. Tried & tested on '85-91 cars at least (never asked about the GTS< but sure it will as well.
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Joined: Sep 2004
Posts: 16,271
Likes: 82
From: Stockton, CA
Hacker
I didn't know Centrifiguals made that much torque down low? 360 @ 1800 rpm is pretty damm good... Way better than the charts posted of Murfs website?
Woody
I'm not sure of the boost Murphy used....My guess is more than the 11psi listed here
http://www.murf928.com/products.cfm
I didn't know Centrifiguals made that much torque down low? 360 @ 1800 rpm is pretty damm good... Way better than the charts posted of Murfs website?
Woody
I'm not sure of the boost Murphy used....My guess is more than the 11psi listed here
http://www.murf928.com/products.cfm
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From: Up Nort
Brian:
https://rennlist.com/forums/showthread.php?t=271970
2nd to the last chart shows about 360rw ft-lbs torque at 1,800 with Murf's latest Stage 2 kit on a dynojet. I cannot explain the difference between the cars that produced the charts on murf's web site vs the most recent one.
https://rennlist.com/forums/showthread.php?t=271970
2nd to the last chart shows about 360rw ft-lbs torque at 1,800 with Murf's latest Stage 2 kit on a dynojet. I cannot explain the difference between the cars that produced the charts on murf's web site vs the most recent one.
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Joined: Sep 2004
Posts: 16,271
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From: Stockton, CA
Hacker
Its still not bad bottom end....say stock at 2K and far better from there...still not bad....Personally I have not ridden in a Vortech 928...only Bill B's....& I really love the powerband in his 928.....I'm sure the strokers have a great powerband too!!
Its still not bad bottom end....say stock at 2K and far better from there...still not bad....Personally I have not ridden in a Vortech 928...only Bill B's....& I really love the powerband in his 928.....I'm sure the strokers have a great powerband too!!
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Joined: Sep 2004
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From: Not close enough to VIR.
Originally Posted by Hacker-Pschorr
Brian:
https://rennlist.com/forums/showthread.php?t=271970
2nd to the last chart shows about 360rw ft-lbs torque at 1,800 with Murf's latest Stage 2 kit on a dynojet. I cannot explain the difference between the cars that produced the charts on murf's web site vs the most recent one.
https://rennlist.com/forums/showthread.php?t=271970
2nd to the last chart shows about 360rw ft-lbs torque at 1,800 with Murf's latest Stage 2 kit on a dynojet. I cannot explain the difference between the cars that produced the charts on murf's web site vs the most recent one.
What was changed between the second to last and last runs? It dropped 30ftlbs across the chart. Was it just heat build up?
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From: Up Nort
Matt,
Wrong chart - they are all the same run. First chart is SAE vs DynoJet numbers. I've been quoting the dynojet numbers since that is what the "before" dyno was without the intercooler.
Wrong chart - they are all the same run. First chart is SAE vs DynoJet numbers. I've been quoting the dynojet numbers since that is what the "before" dyno was without the intercooler.