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Old Sep 16, 2006 | 02:10 PM
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HDDP
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From: Charleston, SC
Default Re: Dyno On Xfire & Srt6

Originally Posted by MMZ_TimeLord
Okay, so the numbers didn't turn out the same as the other posted SRT6 Dyno back in this thread... but, I did get several FULL pulls with no problems.

Here's the hitch. The first several pulls we only got about 150 BHP... after pulling fuses 17 + 18, we got the following. Still not full power to the rear wheels. I think, even with the fuses pulled, the ESP and ECU are cutting down the power because there is no inertia (is there an inertia sensor?)... either that or the autostick is a BIG power leech. I mean 100+ HP drop compared to the other SRT6 dyno? WTF?

Also we were going to get supercharger boost numbers but the vacuum connector Paul (the technician) was looking for was way down in the back of the engine, so I said let it go.

The torque is extremely flat across the range, that's probably where I'm feeling all the power from.

Lastly the A/F ratio seems high to me.

Please give comments on the last pull along with any information regarding the A/F ratio.



Jody: Firstly, I'm pleased to hear the AWD powered dyno got a full RPM run. Though the #'s seem completely goofy for a SRT6. The curves look good as the torque curve on this engine is very flat across the board.

Something is terribly wrong with your #'s though ! My partial (5,000 rpm) dyno put my N/A engine at 184.5 hp @ 4,785 rpm / 211 ft lbs tq. @ 4,350 rpm and Woody's dyno was somewhere in the 156 hp / 180 tq range.

You're showing about 100 hp down from where the SRT6 should be... Are you sure he calibrated his dyno properly ?

The AF #'s are correct for this engine in an un-modified state. They are high IMO, but normal for these new environmentally friendly engines. I'm attempting to do some ECU FMU mods to bring them down to 13.5:1 so I don't start cooking pistons on the race track...
 

Last edited by HDDP; Sep 16, 2006 at 02:24 PM.
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