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Old 07-15-2002, 08:01 PM   #1
HondaH8er
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Question Split Second VC2 or proECM?

Well, fella, I'm at a quandry. Tying to keep the cost down on my turbo kit, but I want it to be safe for the engine. So looks like I'll need a J&S Safegaurd. But I'm thinking about not getting theproECM, and just getting a Split Second VC2 voltage clamp. Now, my question is, will the proECM make enough difference to a turbo'd 2.5RS to justify the price difference between it and just a voltage clamp?
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Old 07-15-2002, 11:01 PM   #2
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personally, I'd go with the SS VC
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Old 07-15-2002, 11:35 PM   #3
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Quote:
Originally posted by kastle
personally, I'd go with the SS VC
That's the way I was leaning, and considering how much you know about the subject, That pretty much makes my mind up. Unless someone has a good arguement as to why the proECM would be a better choice for my application.
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Old 07-15-2002, 11:36 PM   #4
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Why not just do the zener diode trick and save yoru self 40 bucks.

I'm sure you can rig one up yourself its not that hard.

Brad
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Old 07-16-2002, 01:51 AM   #5
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whats the diff between vc1 and vc2? is the vc2 adjustable?
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Old 07-16-2002, 11:53 AM   #6
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Yeah, the VC2 is adjustable from 0-5V max output. That's the main reason I'm looking at one of them over a zener diode.
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Old 07-17-2002, 01:40 AM   #7
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I have a 99RS, so I don't use the voltage clamp on my proecm. However, I can say that the chip made a big difference in the car before it was turbo. I can only assume it is still adding that power now, in addition to the turbo. The proecm is a great product and I'd recommend it to anyone.
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Old 07-17-2002, 01:43 AM   #8
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i will be selling my split second programmable map soon.
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Old 07-17-2002, 01:49 AM   #9
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Will the chip even do anything when under boost? Scince the stock ECU goes into closed loop?
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Old 07-18-2002, 11:25 AM   #10
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People with aftermarket turbo kits and the powerchip is very happy with the added low end and throttle response.

When is comes to the voltage clamp issue. There is a BIG difference between a zener diode and a correctly designed voltage clamp. A zener diode will always put a load on the sensor. This load will change the caracteristics of the sensor output. With other words if you are using a zener diode you are not only clamping the maximum voltage but you have loaded the sensor to give a smaller (not linearly) output all the way. The stock computer will use the sensor value from the map, which now is less than normal and consequently lean the car out. The ECU will learn around this after a while but the way I see it is that the zener diode fix is noting else than a hack, that will not produce the optimal result. If you have spent several thousands $ on a turbo kit, $40 extra (if that's what it is) to make it right is easily worth it.

/David
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Old 07-19-2002, 09:40 PM   #11
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Can someone please link me to where i can get the VC2 and how much it is, and how hard it is to install, thanks!
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Old 07-20-2002, 07:49 PM   #12
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The current version of the J&S comes with the voltage clamp.
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Old 07-21-2002, 02:55 AM   #13
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WHERE CAN I GET A SSVC2?
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Old 07-21-2002, 03:21 AM   #14
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didn't i see split second stuff at spomotorsports once?
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Old 07-21-2002, 03:31 AM   #15
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Quote:
Originally posted by adamsrs
WHERE CAN I GET A SSVC2?
adamsrs
um...try calling Split Second...
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Old 07-21-2002, 03:33 AM   #16
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Quote:
Originally posted by ImprezaRS dot com
didn't i see split second stuff at spomotorsports once?
yea they still have two of their things but not this thing
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Old 07-21-2002, 11:51 AM   #17
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I looked on the Split Second website, and din't see it there, but I found mine on eBay, got a pretty good price on it One more part for my eBat turbo kit (turbo, IC, and VC2 so far, probably at least the BOV, too)
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Old 07-21-2002, 02:08 PM   #18
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if you dont see it on the site, call them.
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Old 07-21-2002, 03:17 PM   #19
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Quote:
Originally posted by HondaH8er
I looked on the Split Second website, and din't see it there, but I found mine on eBay, got a pretty good price on it One more part for my eBat turbo kit (turbo, IC, and VC2 so far, probably at least the BOV, too)
grrrrrr i was bidding on that and then had to leave...theif! haha
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Old 07-21-2002, 04:02 PM   #20
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Split Second Voltage Clamp --> http://www.splitsec.com/products/vc1/vc1ds.htm
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Old 07-21-2002, 07:30 PM   #21
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Quote:
Originally posted by akcel


grrrrrr i was bidding on that and then had to leave...theif! haha
Was that really you? Are you sandiegobidder? This auction ended Jul-16-02 20:55:16 PDT . If so, sorry, but I had to do what I had to do, and I had to counter your high bid with 4 seconds left to snag it.
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Old 07-21-2002, 07:32 PM   #22
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Quote:
Originally posted by 8Complex
Split Second Voltage Clamp --> http://www.splitsec.com/products/vc1/vc1ds.htm
That's the VC1, though, not the VC2. The VC2 is adjustable, the VC1 is fixed.
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Old 07-21-2002, 08:40 PM   #23
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if anyone is interested in a programmable map, please shoot me a PM. it will hopefully be for sale soon.
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Old 07-22-2002, 12:33 AM   #24
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Quote:
Originally posted by HondaH8er


Was that really you? Are you sandiegobidder? This auction ended Jul-16-02 20:55:16 PDT . If so, sorry, but I had to do what I had to do, and I had to counter your high bid with 4 seconds left to snag it.
hah its ok...this girl was bugging me to watch a movie..if i was home you wouldnt have won! ... :P
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Old 07-22-2002, 09:21 AM   #25
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Quote:
Originally posted by HondaH8er
That's the VC1, though, not the VC2. The VC2 is adjustable, the VC1 is fixed.
The VC1 = the VC2, you just have to call and ask for the adjustability to be put in (it's like $10 or something for them to solder in the potentiometer). They're exactly the same unit, otherwise.
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