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10-13-2005, 11:46 PM
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DYNO Video and Results
Sorry for the long delay folks. Below is some video and results from the recent MAGNAFLOW / AlfaBB.com Open House event.
I'm still working on editing a few more so Ill post those as I finish. In the mean time enjoy these. |
10-13-2005, 11:55 PM
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Anthony & Fabrizio Rimicci's '65 GTA
Windows Media File - 4.3mb
MPEG File - 11.7mb
Dyno Results:
Last edited by italcarguy; 10-14-2005 at 07:31 AM.
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10-13-2005, 11:58 PM
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10-14-2005, 12:12 AM
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10-14-2005, 12:15 AM
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Thats it for now.
Hopefully tomorrow I can post the other three videos (kai's, #82 & Dave's cars) with the rest of the dyno results.
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10-14-2005, 05:54 AM
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Wow, look at the GTA's power curve! Strong all the way up! Is that a 1600? The A/F is spot on too.
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10-14-2005, 06:47 AM
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Simon:
Thanks for the posting!
These results are for the bone stock, 30 year old engine 2L I got from Dick Giambria in Rochester when I blew my race motor at Watkins Glen. We bolted on my intake (Jon Norman's manifold & 48DCOEs), exhaust (Paul Spruell's headers), and distributor (Centerline's Bosch 405), set the timing, and let her rip (no jetting, cam, or other adjustments). Finished the race and ran clean on the dyno. BTW, the chassis is a 66 GTV.
Wil Painter
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10-14-2005, 08:00 AM
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 Quote:
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Originally Posted by Wil Painter
Simon:
Thanks for the posting!
These results are for the bone stock, 30 year old engine 2L I got from Dick Giambria in Rochester when I blew my race motor at Watkins Glen. We bolted on my intake (Jon Norman's manifold & 48DCOEs), exhaust (Paul Spruell's headers), and distributor (Centerline's Bosch 405), set the timing, and let her rip (no jetting, cam, or other adjustments). Finished the race and ran clean on the dyno. BTW, the chassis is a 66 GTV.
Wil Painter
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Will,
Very respectable numbers for a stock 2 liter. The 48s are probably overkill on the stock motor. After talking to you that day I guessed your car would be about 100 hp at the wheels.
Simon,
Be sure to post Davbert's results. To me, it was the most interesting run of the day...
__________________
Garrett
'69 1750 GTV
'91 164L - For Sale!
Cogito, ergo Alfa Romeo
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10-14-2005, 08:18 AM
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Quote:
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Originally Posted by 75evo
Wow, look at the GTA's power curve! Strong all the way up! Is that a 1600? The A/F is spot on too.
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davbert
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10-14-2005, 08:28 AM
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Quote:
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Originally Posted by 75evo
Wow, look at the GTA's power curve! Strong all the way up! Is that a 1600? The A/F is spot on too.
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just notice torque @ 5252 86 ft lbs... wonder what a 1300 TS short stroke spins too? must feel like a power drill. cool....
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10-14-2005, 09:34 AM
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Garrett:
I agree, I'm sure the 48s are way overkill; I was amazed at how cleanly the car revved. Listen to the vdeo clip, I was sure it would be overich and stumble. And that was with jetting that worked on a race motor.
Wil
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10-14-2005, 10:00 AM
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Man, the sound of Charlie DiMarcos GTV6 winding up on the Dyno gave me goosebumps !!
What a beautiful scream ! It had to be exciting holding it that high rpm at the end !
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The " Save the Rusty Alfa Society"
43 Alfas at the moment [ I think], I'll be able to tell better when the snow melts
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10-14-2005, 10:40 AM
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Hi Everybody,
Gary Williams requested "Any chance you guys who had your cars dyno'd will post your results? It would be fun to see what hp & torque figures you got, along with an explanation of what, if anything, you've done to the engines, so we can see how various modifications affect horsepower and torque."
So, my 1986 GTV6 has a stock engine and gearbox. Mods are as follows,
K&N air filter, IAP headers, MagnaFlow catalytic converter, Stebro exhaust, Greg Gordon Silicone hoses.
This is my first GTV6 and I must say it is a very enjoyable car.
I now understand why some people prefer the sound of 2.5 over the 3.0!
Charlie DiMarco
www.serpentautosport.com |
10-14-2005, 11:49 AM
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Quote:
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Originally Posted by smestas
Anthony & Fabrizio Rimicci's '65 GTA
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Before someone tries to tell me my calculations are wrong, I also did them for my own car (data not yet posted). However, I happen to have both rpm and mph printouts so I can check the calculations. My pull cutoff was at 5750 rpm or 94 mph as near as I can read the graphs. With (new) tires that tirerack says are 893 rev/mile, a 4.10 rearend and in 4th gear, my calculations say 5750 rpm corresponds to 94.1 mph.
After my runs, the "driver" said he had shutdown at an indicated 6500 on the (mechanical) tach. He wanted me to know that the dyno reading indicated that this was actually 5700 rpm. This is a bit more error than I would have anticipated but I'll believe the dyno reading before I'll believe a 40 yr old mechanical tech.
Maybe I'm answering my own question here. According to what we were told at the event, Anthony's car had a positive ground (right hand drive = British origin?) and this in turn caused problems with the dyno (no rpm readout?). Maybe they shutdown the GTA run based on a mechanical tach reading that was in error.
__________________
Bruce Colby
Competition Director, AROSC
'65 Sprint GT (TS race)
'69 1750 GTV (TS street)
'71 Jr. Z (special occasions)
'89 E30 (the dark side)
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'69 1750 Spider (sold  )
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10-14-2005, 12:00 PM
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Quote:
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Originally Posted by Bruce Colby
There's something I don't seem to understand here. Maybe someone can point out the error(s) in my thinking. This run was terminated at just under 85 mph. Assuming that the pull was done in 4th gear and that this car has a 5.12 rearend (I think this is what Anthony said he was running) and that the tires are a size that run at about 895 rev/mile, 85 mph would be reached at about 6500 rpm. Doesn't this seems a bit early to terminate the run?
Before someone tries to tell me my calculations are wrong, I also did them for my own car (data not yet posted). However, I happen to have both rpm and mph printouts so I can check the calculations. My pull cutoff was at 5750 rpm or 94 mph as near as I can read the graphs. With (new) tires that tirerack says are 893 rev/mile, a 4.10 rearend and in 4th gear, my calculations say 5750 rpm corresponds to 94.1 mph.
After my runs, the "driver" said he had shutdown at an indicated 6500 on the (mechanical) tach. He wanted me to know that the dyno reading indicated that this was actually 5700 rpm. This is a bit more error than I would have anticipated but I'll believe the dyno reading before I'll believe a 40 yr old mechanical tech.
Maybe I'm answering my own question here. According to what we were told at the event, Anthony's car had a positive ground (right hand drive = British origin?) and this in turn caused problems with the dyno (no rpm readout?). Maybe they shutdown the GTA run based on a mechanical tach reading that was in error.
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