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estimated WHP after retuning

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Old May 25, 2007 | 11:33 PM
  #1  
thecorrectformula's Avatar
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Default estimated WHP after retuning

I currently have a 98 formula 6 speed that I purchased from Prokill98. The mod list is currently the following.
  • Lowered. Drag setup.
  • 918's
  • 224/228 duration 591 lift cam. I think SRP calls it the 400 cam. They custom grind it.
  • zr-1 wheels with 11's in rear
  • Speed Density Tune by SRP in Blue Ash.
The cat's have also been removed and the car is tuned for it.
I called SRP and Tracey Scott the owner estimated the power at around 370 to 380 at the wheels. I just purchased a full exhaust. Pacesetter Longtubes, 1 3/4" primaries to a 3" collector. 3" Ypipe, and a 3" MagnaFlow Catback. And I'm about to get a lid.

With the the exhaust, lid, and a proper custom tune what type of HP and WHP would you guys estimate the new setup at? and do you think the current estimate is accurate or above or lower.
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Old May 26, 2007 | 12:17 AM
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headed-ws6's Avatar
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was the whole exhaust system still stock? even the lid?
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Old May 26, 2007 | 01:45 AM
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Yes the intake and exhaust are all still stock except for the fact that the cats are removed.
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Old May 27, 2007 | 10:18 AM
  #4  
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any estimates appreciated.
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Old May 27, 2007 | 10:52 AM
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I would say close to 400RWHP if it's on stock heads.
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Old May 27, 2007 | 11:42 AM
  #6  
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Yeah it's on stock heads I don't have the money to invest in them right now.
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Old May 27, 2007 | 02:29 PM
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393 rwhp 389 rwtq is my guess!
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