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BRP/SOT Hotside SC Install

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Old Sep 16, 2007 | 03:42 PM
  #301  
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VTEC could stand to be lowered, as with RSX's, a lot of guys are running Kpro and VTEC'ing at 3000-4000 RPM with the Jackson Racing SC. Granted, the K20 has variable cam timing, which makes this possible, but the S2k could definitely use a lower VTEC point with the SC.
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Old Sep 17, 2007 | 05:06 AM
  #302  
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Originally Posted by ruexp67,Sep 16 2007, 10:10 AM
You should keep it IN VTEC for the whole lap, the transition shouldn't matter (except on your outlap.)
There are many cases where you cannot do this. This isn't gran turismo where I can change my gearing at will
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Old Sep 17, 2007 | 06:18 AM
  #303  
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If you have a right arm and a left foot you should be able to change gear though.

Now, I haven't tracked my S2000 very much (one HPDE and one AutoX event.) But I have tracked other cars quite a bit.

I was able to keep the car in VTEC pretty much the whole way around Gingerman, with it dropping only slightly in some of the slower corners, and I have a LOT of trouble heel/toeing in an S2000. I had no trouble keeping the revs up in the AutoX.
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Old Sep 17, 2007 | 09:27 AM
  #304  
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Originally Posted by Reagent,Sep 16 2007, 12:35 PM
I would put it where the hp curves cross. You can go with the torque curves if you prefer. As it happens they are within a few rpm of each other in this case.
They should be the same RPM since they're directly linked.
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Old Sep 17, 2007 | 01:28 PM
  #305  
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Originally Posted by WestSideBilly,Sep 17 2007, 12:27 PM
They should be the same RPM since they're directly linked.
Thats assuming the scale for HP and torque are the same (usually they are different)
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Old Sep 17, 2007 | 03:46 PM
  #306  
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It has nothing to do with the scale. Hopefully when you're tuning your transition point, you're using the same units and scale for both curves.
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Old Sep 17, 2007 | 04:10 PM
  #307  
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Originally Posted by WestSideBilly,Sep 17 2007, 09:27 AM
They should be the same RPM since they're directly linked.
Of course you're right. torque = HP * 5252 / RPM so the lines must cross at the same rpm.

Sometimes I can type faster than I can think.
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Old Sep 17, 2007 | 04:42 PM
  #308  
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Originally Posted by WestSideBilly,Sep 17 2007, 06:46 PM
It has nothing to do with the scale. Hopefully when you're tuning your transition point, you're using the same units and scale for both curves.
right but I'm just mentioning that because most HP/TQ charts use different scales
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Old Sep 17, 2007 | 08:46 PM
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Originally Posted by Spec_Ops2087,Sep 17 2007, 05:42 PM
right but I'm just mentioning that because most HP/TQ charts use different scales
Well, they have to. But you're comparing two HP curves or two torque curves, not one of each. The units and scale are irrelevant.
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Old Sep 17, 2007 | 08:51 PM
  #310  
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Originally Posted by WestSideBilly,Sep 17 2007, 11:46 PM
Well, they have to. But you're comparing two HP curves or two torque curves, not one of each. The units and scale are irrelevant.
Thats true, for some reason I thought you said where the HP and TQ curves cross (which you would need the same scale).

Brain is acting a little slow
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