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Old 05-27-2002, 08:41 AM   #1
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Discuss about Modified motors here!

My question: Motor timing - is the only way to get the optimal timing with a Dyno? Should I leave it at the factory settings (0 degree) then?

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Old 05-27-2002, 11:07 AM   #2
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I'd start around 10-15 degrees. The best way to tune any motor is by making a change, running the car, and looking at lap times, but that takes forever. Dynos are of course an excellent way to tune motors. Also, you can sometimes make a change, hook it up to a Turbo 35 or a pack and "hear" if it's better or worse, but that's not always too reliable.
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Old 05-27-2002, 11:19 AM   #3
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I usually experiment my gearing and the timing simulteanously and determine my runtime. That way I get to see the right timing of the motor for its exact tuning.
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Old 05-27-2002, 12:35 PM   #4
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Right, while dynos may be the best way to determine the ideal timing for a given motor, they aren't the ONLY way. You can do it by listening to it like the others said & by setting the timing on way & just playing with gearing until you've got the right one. But a dyno's advantage there is that you can look at the complete powerband, & see if it matches what you want(whether it's a peaky band in a certain rev range or a nice, broad band that's easy to drive & gear). Do you know anyone who has one? I'm sure they'd be willing to help you sort out your motor's timing(I know that I bring mine with me to the track, & I'll test anyone's motor as long as I have time to).....
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Old 05-27-2002, 02:29 PM   #5
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Yeah, usually I bring my dyno with too. Usually I don't even bring it in the track, but it's always there if I or someone else needs to use it.
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Old 05-27-2002, 10:24 PM   #6
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What rollout should I use for a 10X2 Matrix mod motor? I believe it's the same as a D4.
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Old 05-30-2002, 07:49 AM   #7
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Anyone had experience with Corally competition modifieds are they fast?
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Old 05-30-2002, 07:55 AM   #8
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They are the best quality motors I've ever had. Many races won with them. I'm not sure if they are the most recent technology anymore though. The Ti magnets are better.
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Old 05-30-2002, 10:22 AM   #9
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Corally recently updated the magnet specs so they may be as good as or better than the Ti now. The new motor is otherwise the same as the old though and it is hard to tell the difference from the pics I've seen.

My experience of the corally motors is that quality control is good, better than reedy or trinity.
They do need to be geared with a slightly smaller pinion than most other makes of motor though.
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Old 05-30-2002, 11:27 AM   #10
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i usually run my d4 motors at around 15-20 degree advance for my car (yoko mr4tc) anything more and it seems to heat up alot. the motors are usually 10 x 2, 11 x 3
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Old 05-30-2002, 07:29 PM   #11
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Any thoughts on Orion mods?
And how about Trinity's new Speed Gems Pro with the P-94 brushes and D4 can?
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Old 05-30-2002, 07:56 PM   #12
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I ran an Orion Chrome 11x2 in my XRay over the winter. No complaints with the motor. Around 15* timing, Reedy 729 brushes, and I'd get about 5mins 30-40 seconds. Had more than enough in the infield, maybe just a hair shy of some guys down the straight, but not much. I'm buying more TOP mods this fall!
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Old 05-30-2002, 08:53 PM   #13
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what do you guys think of the fantom motors? used to run one it was alright no complaints from me but im thinking of running them again but i wanna know if they are still that good
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Old 05-30-2002, 11:29 PM   #14
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Yes, they're still VERY good. I've had a chance to meet Troy(who owns Fantom) & he really knows his stuff. I've never had a bad motor from them(& Chris Tossolini won the Novak US Touring Car Championships for Fantom, & he's still doing well for them).....
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Old 05-31-2002, 12:11 AM   #15
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i guess its time to buy me some fantom motors, wheres the cheapest place i can find them?
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