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Old 02-24-2009   #8 (permalink)
newman27
'72 Opel GT (Sara)
 
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Join Date: Jul 2006
Location: Atlanta, GA
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Results do vary...

I never bothered to post this because I find the results somewhat suspect and the Dyno operator never emailed me the completed graphs I asked for but since it applies to this topic...

Last month I took the GT to a Dyno here in Atlanta for three pulls (right after my CAI was installed). They have a Land and Sea brand with front and rear rollers for AWD cars sunk into a cement floor. I believe the operator told me that the Dyno (with installation) cost over $200K (I mention that because I think it indicates we are talking about a very sophisticated unit here). The three pulls showed a high of ~96 bhp with no allowance for drive-train loss (i.e., that field had 0% in it). I know I gave the operator the right bore / stroke / etc. because I called Keith that night to get the numbers specific to my car as the operator keyed them into the PC. This is a roughly 50% increase over the HP measured in 2007 at the Tennessee Dyno Days meet. I know the car is stronger for sure because of some things that have been tweaked and added (like the CAI) but not so sure that number is "right". Just thought I would post now as an example of the variance that can occur between Dynos...
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'72 Opel GT (Fireglow Orange)

Third Owner, Purchased in 1986
Current Status: Fully Restored
Major Mods: Weber Carb, High Compression Pistons, Electronic Ignition, XM Radio / CD, ADDCO Front / Rear Anti-Sway-Bars, Custom CAI, Sprint Manifold

Restoration Thread
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Other Cars:
'09 Pontiac G8 GT (Panther Black)
'06 Pontiac Solstice (Envious Green)
'99 Oldsmobile Intrigue GLS (Black Onyx)
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