C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

SR vs MR dyno test

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Old Oct 21, 2003 | 12:20 AM
  #21  
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Default Re: SR vs MR dyno test (hookedup)

what size motor & heads?
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Old Oct 21, 2003 | 12:29 AM
  #22  
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Default Re: SR vs MR dyno test (hookedup)

That sort of coincides with 383 test results in TPIS "Insider Hints" comparing SR vs MR, except that they reported a nice HP increase at over 6k RPM with the MR.

BTW, that's some "nice air" under those front tires. :cheers:
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Old Oct 21, 2003 | 08:44 AM
  #23  
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Default Re: SR vs MR dyno test (65Z01)

Corky, i agree with you too. Sometimes chassis dyno numbers make no sense, especially on automatic cars. If you dont lock the converter, the torque multplier throws off the low end torque curve and you wind up with huge torque peaks at like 2700 rpm when you know the torque shouldn't peak until much later. Then you have effects of weather and even wider variations between dynos. I doubt very much that Dave lost HP going to the MR and gained lowend torque....there's just no way. Different days, different dynos, different drive trains, etc. The results, in this case, cannot be compared.
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Old Oct 21, 2003 | 08:50 AM
  #24  
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Default Re: SR vs MR dyno test (ralph)

Ralph & Corky,

You're both right on the money, that's why I said it was an apples & oranges comparison.

Dave :yesnod:
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Old Oct 21, 2003 | 11:11 AM
  #25  
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Default Re: SR vs MR dyno test (mistaben)

Intake test is still scheduled! Indians are waiting patiently! :D :thumbs:

HOLD UP> when is it scheduled for? i need to know :D i really am waiting this one anxiously :yesnod:
When I get off my AZZ and finish it... Business has taken its toll on my manifold project lately...
-Jeb
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Old Oct 21, 2003 | 11:25 AM
  #26  
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Default Re: SR vs MR dyno test (jburnett)

Ahhh... ok. I understand now :D I am currently fixing my bronco because ah.. **** on explaining. I understand busy, busy. Don't rush it or yourself, lets see this done right :smash:

Just curious as to the progress. WE are waiting anxiously :cheers: :smash:
:flag
my props are due to you jeb.


[Modified by mistaben, 10:30 AM 10/21/2003]
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Old Oct 22, 2003 | 11:18 PM
  #27  
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Default Re: SR vs MR dyno test (mistaben)

really cool,
Sorry for the delay, out of town, 420 w/215 Brodix T1s.
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Old Oct 23, 2003 | 02:25 PM
  #28  
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Default Re: SR vs MR dyno test (hookedup)

hookedup, we have similar engines...what's your best N.A. time with the 411 RWHP combo? (I'm assuming the 10.39@130 was with spray)
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Old Oct 23, 2003 | 08:27 PM
  #29  
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Default Re: SR vs MR dyno test (vette_tweak)

that car is all motor :cheers:
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Old Oct 23, 2003 | 10:46 PM
  #30  
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Default Re: SR vs MR dyno test (CORKVETTE1)

vette_tweak,
Corky answered for me, but again: NO spray, only NA!

91tpi-zf,
Coan 10" 4000 stall.

Ralph,
Still dealing with the guy, but hang on you know you want the 6s!:yesnod:

Dave :D


[Modified by hookedup, 10:54 PM 10/23/2003]
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Old Oct 24, 2003 | 09:28 AM
  #31  
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Default Re: SR vs MR dyno test (hookedup)

10.39@130 w/ 401RWHP??? :confused:
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Old Oct 24, 2003 | 03:25 PM
  #32  
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Default Re: SR vs MR dyno test (vette_tweak)

tweak,

As a couple of us have noted in this post, we don't have a lot of confidence in the latest dyno numbers. However, if you consider there might be as much as 20% drive train loss, that's still over 500 at the crank.

Just a thought, Dave :thumbs:
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Old Oct 26, 2003 | 06:31 PM
  #33  
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Default Re: SR vs MR dyno test (hookedup)

I'm surprised because I made 432RWHP on a 90 DEG F day and my best MPH is 118.9 compared with your 130 and motor wise, they're very similar. My 1/4 times are really bad because the car won't 60 ft but I thought I'd have better MPH

.. tens at a buck thirty ...must be nice! :cheers:
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Old Oct 26, 2003 | 11:28 PM
  #34  
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Default Re: SR vs MR dyno test (vette_tweak)

tweak,

Stay tuned ;)
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