DYNO RESULTS - 928SP Modular Crossover Pipe System (First Session)
#61
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There are far too many supercharged 928s in the avatars here, and none of them are mine! Da**! ![crying](https://rennlist.com/forums/graemlins/bigcry.gif)
Can you share what the cats are? Are they the carshound/magnaflows? What is their diameter? I'm pretty hung up on the Dynatech I used on my VR4...but it would be a costly pair. I could feel a little impediment in bringing my Euro back into the cat-ed world from its former (leaky) Ott-X configuration.
But it does sound better (to me, for a street car).
Are the pipes 2.5"? I.D./O.D.?
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Can you share what the cats are? Are they the carshound/magnaflows? What is their diameter? I'm pretty hung up on the Dynatech I used on my VR4...but it would be a costly pair. I could feel a little impediment in bringing my Euro back into the cat-ed world from its former (leaky) Ott-X configuration.
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Are the pipes 2.5"? I.D./O.D.?
#62
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>Can you share what the cats are?
Not a problem
>Are they the carsound/magnaflows?
Correct. We can also offer a metal substrate cat version, but I don't think there will be any power difference and certainly not to justify the additional cost.
> I could feel a little impediment in bringing my Euro back into the cat-ed world from its former Ott-X >configuration. But it does sound better (to me, for a strett car).
I understand completely as I prefer the cat version myself. Keep in mind our posted power gains were on a stock 928 w/RMB, no chips, no before and after fuel pressure tuning, ignition tuning and no cat back exhaust system changes or larger diameter exhaust pipes. With fuel pressure tuning and our crossover with cats I think you will be very pleased with the results.
Not a problem
>Are they the carsound/magnaflows?
Correct. We can also offer a metal substrate cat version, but I don't think there will be any power difference and certainly not to justify the additional cost.
> I could feel a little impediment in bringing my Euro back into the cat-ed world from its former Ott-X >configuration. But it does sound better (to me, for a strett car).
I understand completely as I prefer the cat version myself. Keep in mind our posted power gains were on a stock 928 w/RMB, no chips, no before and after fuel pressure tuning, ignition tuning and no cat back exhaust system changes or larger diameter exhaust pipes. With fuel pressure tuning and our crossover with cats I think you will be very pleased with the results.
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#63
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Fuel pressure tuning -> CIS -> my ongoing nightmare....
I just checked the prices on the powercats- $165 per. Outch. I'm going to check your site to see what else has cropped up during my hiatus.
Thanks
I just checked the prices on the powercats- $165 per. Outch. I'm going to check your site to see what else has cropped up during my hiatus.
Thanks
#64
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Opps, I missed this question.
>Are the pipes 2.5"? I.D./O.D.?
2.5 " O.D. minimum (some sections are larger so the 2.5" OD can slip inside, etc)
FYI, just for future reference all metal pipes are typically measured as O.D., and plastic (PVC type) pipes are measured as I.D. Of Course then you get into different wall thickness etc.
>Are the pipes 2.5"? I.D./O.D.?
2.5 " O.D. minimum (some sections are larger so the 2.5" OD can slip inside, etc)
FYI, just for future reference all metal pipes are typically measured as O.D., and plastic (PVC type) pipes are measured as I.D. Of Course then you get into different wall thickness etc.
#65
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thanks for the additional information, and the tip. I've had to make some 'creative' I.D./O.D. exhaust fitments to deal with variation between metric and standard piping in the past.
#67
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>I'm still waiting for that clearance/overstock section to be populated!
It does on occasion, but it gets cleared out quickly.
It does on occasion, but it gets cleared out quickly.
#68
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"Sorry I missed you, I will try and catch you later this afternoon or in the morning."
Still waiting on your call bro. If you don't get me feel free to leave a message, or you can just PM me here and let me know whatcha need. As i said, i'd be happy to help.
Still waiting on your call bro. If you don't get me feel free to leave a message, or you can just PM me here and let me know whatcha need. As i said, i'd be happy to help.
#71
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DR or DC;
Can you respond to what I can expect for noise levels running DR's new X-pipe with no cats on a 85/86 32vS with the stock exhaust including the center resonator and stock rear muffler?.
Thanks in advance
Rich
Can you respond to what I can expect for noise levels running DR's new X-pipe with no cats on a 85/86 32vS with the stock exhaust including the center resonator and stock rear muffler?.
Thanks in advance
Rich
#72
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Hi Rich,
Running our Modular Crossover without cats thru a completely stock cat back system I feel 100% confident you will love it and your neighbors will not hate it.
In reality it is very hard to describe sound levels and or changes with a keyboard, you pretty much have to hear it yourself. However, part of the beauty of our system is you can easily add the cats to reduce sound after the fact if you desire. AND do so with only a small sacrifice in power.
PLUS, if you get the system and truly do not like the way it sounds and you are unhappy with it you can return it for a refund.
Running our Modular Crossover without cats thru a completely stock cat back system I feel 100% confident you will love it and your neighbors will not hate it.
In reality it is very hard to describe sound levels and or changes with a keyboard, you pretty much have to hear it yourself. However, part of the beauty of our system is you can easily add the cats to reduce sound after the fact if you desire. AND do so with only a small sacrifice in power.
PLUS, if you get the system and truly do not like the way it sounds and you are unhappy with it you can return it for a refund.
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Originally Posted by RDS928S
... what I can expect for noise levels running DR's new X-pipe with no cats on a 85/86 32vS with the stock exhaust including the center resonator and stock rear muffler?.
#74
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Originally Posted by DR
If Trenton, NJ wasn't 15 hours away I probably would. I have so many projects going on, plus dealing with manufacturers all day long trying to make sure the new products are getting made on time and correctly. Of course the biggest problem is if I am away from the office too long all the guys calling me for tech help begin to start talking about ropes and tall trees :-)
#75
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Thanks Dave & Dave,
I can't wait then.
One last question (promise). When my car was on the lift I noticed a small diameter pipe running down next to the stock cats. I believe it attached to them.
What will happen to that small pipe when my shop installs the new M-pipe?.
Thanks again Rich
I can't wait then.
One last question (promise). When my car was on the lift I noticed a small diameter pipe running down next to the stock cats. I believe it attached to them.
What will happen to that small pipe when my shop installs the new M-pipe?.
Thanks again Rich