The big header / vendor debate...
#41
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Sorry Jeff but your wrong.
Your 258 TQ figure is at aprox 4500rpm, If mjedens 256 TQ was at the same rpm figure as yours then your car would be making more HP at 4500.
Now his motor went on to make 298Hp at probably 6200 to 6500 & if your motor made its 266Hp at these same revs then his motor was certainly makeing more TQ than yours at those revs.
Dont beleive me . Well look at your green graph, wherever theres a dip or wiggle in the TQ graph the same dip & wiggle shows on the HP graph even the little flick up at the end.
Why? because they are the same thing but with different math applied.
Conclusion: If the Crawford header was showing more TQ at a given RPM than the Nismo, then at that same RPM it would have been making more power.
Now having said that I am very skeptical of the figures mjedens has posted. At 2300Rpm he is 38up yet 250revs later he is only 6 up. The graph would be interesting to see as it would have more ups & downs than a ****** panties.
Your 258 TQ figure is at aprox 4500rpm, If mjedens 256 TQ was at the same rpm figure as yours then your car would be making more HP at 4500.
Now his motor went on to make 298Hp at probably 6200 to 6500 & if your motor made its 266Hp at these same revs then his motor was certainly makeing more TQ than yours at those revs.
Dont beleive me . Well look at your green graph, wherever theres a dip or wiggle in the TQ graph the same dip & wiggle shows on the HP graph even the little flick up at the end.
Why? because they are the same thing but with different math applied.
Conclusion: If the Crawford header was showing more TQ at a given RPM than the Nismo, then at that same RPM it would have been making more power.
Now having said that I am very skeptical of the figures mjedens has posted. At 2300Rpm he is 38up yet 250revs later he is only 6 up. The graph would be interesting to see as it would have more ups & downs than a ****** panties.
#42
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Originally posted by Nathan
Sorry Jeff but your wrong.
Your 258 TQ figure is at aprox 4500rpm, If mjedens 256 TQ was at the same rpm figure as yours then your car would be making more HP at 4500.
Now his motor went on to make 298Hp at probably 6200 to 6500 & if your motor made its 266Hp at these same revs then his motor was certainly makeing more TQ than yours at those revs.
Dont beleive me . Well look at your green graph, wherever theres a dip or wiggle in the TQ graph the same dip & wiggle shows on the HP graph even the little flick up at the end.
Why? because they are the same thing but with different math applied.
Conclusion: If the Crawford header was showing more TQ at a given RPM than the Nismo, then at that same RPM it would have been making more power.
Now having said that I am very skeptical of the figures mjedens has posted. At 2300Rpm he is 38up yet 250revs later he is only 6 up. The graph would be interesting to see as it would have more ups & downs than a ****** panties.
Sorry Jeff but your wrong.
Your 258 TQ figure is at aprox 4500rpm, If mjedens 256 TQ was at the same rpm figure as yours then your car would be making more HP at 4500.
Now his motor went on to make 298Hp at probably 6200 to 6500 & if your motor made its 266Hp at these same revs then his motor was certainly makeing more TQ than yours at those revs.
Dont beleive me . Well look at your green graph, wherever theres a dip or wiggle in the TQ graph the same dip & wiggle shows on the HP graph even the little flick up at the end.
Why? because they are the same thing but with different math applied.
Conclusion: If the Crawford header was showing more TQ at a given RPM than the Nismo, then at that same RPM it would have been making more power.
Now having said that I am very skeptical of the figures mjedens has posted. At 2300Rpm he is 38up yet 250revs later he is only 6 up. The graph would be interesting to see as it would have more ups & downs than a ****** panties.
Actual HP or SAE Corrected?
My car makes over 600 RWSHP...
(rear wheel sticker horse power)
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#44
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Originally posted by mjedens
Horse power increase also went to the Crawfords with a gain of 5 starting @ 6450 & increasing to 8 @ 6850 to 7000.
Horse power increase also went to the Crawfords with a gain of 5 starting @ 6450 & increasing to 8 @ 6850 to 7000.
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Originally posted by Nathan
Jason
The graph posted by Jeff on page 2 showing Actual HP.
Jason
The graph posted by Jeff on page 2 showing Actual HP.
everyone else seems to be SAE
#46
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Originally posted by Jason@Performance
yes I know all of our graphs are actual horse power,,, all raitings we get are actuall horse power..
everyone else seems to be SAE
yes I know all of our graphs are actual horse power,,, all raitings we get are actuall horse power..
everyone else seems to be SAE
Here is my graph using no correction factor, but I did set smoothing to 3, which I understand is another "standard". If I am wrong please advise! Also note just to be fair, I put my bone stock baseline in there also with no correction factor. Is changed the numbers a bit in places some for better some for worse!
![](http://mywebpages.comcast.net/adam.broslat/NoSAEDyno.jpg)
Now that I think about it if you are comparing dynos from same day, then no SAE is required. But different day different conditions can through the results off . . .thats seems to be a good reason for me to use the corrected numbers to do my comparison. Jason or Jeff . . .is that your baseline on there?
#48
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I'll see if I can dig up my original dyno sheet. But my baseline was 232hp and 237tq on a dyno pack down the street. Who knows how correct any of these are anyway..... My down fall was not using the same one start to present day. A dyno for our store is on the horizon, but the road race cars come first so it depends on how expensive the on coming season gets. Hopefully BJ and us can keep the cars on the podium this year!!!
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Originally posted by Jason@Performance
dbble post...
lets turn this into a thread for why Mac's are good only for graphic design and NOT internet!
DUDE! I need a DELL!
dbble post...
lets turn this into a thread for why Mac's are good only for graphic design and NOT internet!
DUDE! I need a DELL!
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![Stick Out Tongue](https://my350z.com/forum/images/smilies/tongue.gif)
Seriously, Jason, you started a serious conversation, I would expect you, as the thread starter, to maintain a serious tone. I understand the desire to keep the temperature of the conversation down, but throwing cold water on a hot fire is only going to cloud the issue with a lot of steam.
Maybe you have a different relationship with the main participants to this thread than what I understand, and the jeering is taken with a grain of salt for them more so than it appears to be from my eyes. In which case, dismiss my comments.
Last edited by f r e z N Y; 12-23-2003 at 06:16 AM.
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Originally posted by f r e z N Y
Maybe you have a different relationship with the main participants to this thread than what I understand, and the jeering is taken with a grain of salt for them more so than it appears to be from my eyes. In which case, dismiss my comments.
Maybe you have a different relationship with the main participants to this thread than what I understand, and the jeering is taken with a grain of salt for them more so than it appears to be from my eyes. In which case, dismiss my comments.
#51
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Would it make everybody happy if someone bought 1 crawford header and 1 nismo header and slapped either one on the left and rightside of the engine block. Both Crawford and Performance are great companies and there is enough money out there to be made by all.
#53
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Originally posted by Fanman
Anybody hear of the Fujitsubo headers ? I hear they make a quality product. A few people over on the S2000 boards have they exhaust, and it looks nice.
Anybody hear of the Fujitsubo headers ? I hear they make a quality product. A few people over on the S2000 boards have they exhaust, and it looks nice.
#54
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Originally posted by Fanman
Anybody hear of the Fujitsubo headers ? I hear they make a quality product. A few people over on the S2000 boards have they exhaust, and it looks nice.
Anybody hear of the Fujitsubo headers ? I hear they make a quality product. A few people over on the S2000 boards have they exhaust, and it looks nice.
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