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Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of SAU Community by signing in or creating an account. Consider joining our newsletter for the latest content updates. Click here to register. By gtstii , August 28, in Forced Induction Performance. Yes it will give you more power, but at what cost?
A few engine rebuilds have been the result here:. When you tune them on the dyno they seem fine, but on the road the loading of the engine is different, and they'll start to ping:. Am I correct in saying they don't make them any more? Maybe wait till a S-ITC comes out. I've found pinging to occur over a similar rev range but only under certain load condidtions mainly coming on boost in higher gears. With the ITC you either have to be real conservative and dial out timing across this rev range, which means that you lose a lot of punch in 1st and 2nd gears, or risk damaging your motor.
As with most gizmos that screw with the ecu's imputs, including SAFCs, boost cut defenders and ITCs, you can make some decent performance gains.
The downside is that there is no real mechanisim programmed into the things for fluctuations of the input parameters after the initial setup. Basically what I'm saying is that there is a performance gain to be had but dont get greedy.
Set it up on a dyno in the first place and don't go looking for maximum outright power figures. If it starts to ping on the dyno and you only turn it back slightly you can pretty much garantee that it will ping like crazy on a hot day in traffic.
Adjust it in small increments and you will be happy with the results. Go crazy and you'l blow a hole in the top of a piston. I have a stock r34 gtt cooler on there but i realise that it isn't heaps better than the stock r33 unit. The timing curve is adjusted by setting the timing at 5 different points along the RPM range and the values between are interpolated by the ITC from those 5 points. Apexi recommends having the Super ITC installed and tuned by authorized shops. I remember reading about an engine swap, SR20 into a stanza or something where they used both an SAFC and ITC but at the time they were about each so I couldn't fgure out why they didn't just get a microtech or something fo the same money.
Hey redline, did you cut and paste or do you really talk about new dimensions of tuning? You need to be a member in order to leave a comment.
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Welcome to SAU Community Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. See fewer ads! Consider joining our newsletter for the latest content updates Click here to register Guest Message by DevFuse. Recommended Posts. Report post. Posted August 28, Is this a good option if I can get one cheap? Will it give me a nice increase in power down low?
Share this post Link to post Share on other sites. Haven't heard too many people using them though. They are 2 dimensional only, adjusting timing at various rev ranges. Your call, but personally I wouldn't risk it. It won't do you any good because you're still running a stock cooler. I have a saf-c but what is an ITC? What is it used for. This is what it looks like I was expecting more style from APEXi. They're pretty old. The old SAFC's like 1st and second generation looked very similar.
They'll do the job but I still say be very careful. Prev 1 2 Next Page 1 of 2. Create an account or sign in to comment You need to be a member in order to leave a comment Create an account Sign up for a new account in our community.
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APEXI S-ITC Review
The timing curve is adjusted by setting the timing at 5 different points along the RPM range and the values between are interpolated by the ITC from those 5 points. Apexi recommends having the Super ITC installed and tuned by authorized shops. So, without permission, I now reproduce a copy of the English manual, that I was able to obtain a photocopy of, two years ago. I don't think Apex'i will mind, as they don't even list this product in their catalogue any more. I apologize for the size of the files megs each , but you should only need to grab the first couple of pages, and then the particular page that pertains to your car.