NA Tuning
09-25-2006, 11:03 AM
#1
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NA Tuning
I ran a quick search but didn't really see anything on tuning for an NA setup. I was curious to see if anyone has done it. What would work better and AFC 2 or one of the vvti controllers or maybe both? Say i had headers, s-pipe, axel back and an intake could the be any good gains like say 5hp from using these tuning devices.
09-25-2006, 01:29 PM
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As far as I know, the cars computer automatically changes its Air/Fuel map and adjusts to any changes like that made to the car. There should be no need to take your car somewhere to get your car tuned with only I/H/E.
09-25-2006, 02:29 PM
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Originally Posted by THansenite
As far as I know, the cars computer automatically changes its Air/Fuel map and adjusts to any changes like that made to the car. There should be no need to take your car somewhere to get your car tuned with only I/H/E.
09-25-2006, 03:08 PM
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My question was brought about by reading several other posts i too thought that the ecu should automatically adjust for the air fuel ratio, but in the post where they dyno all the intakes they show that some of the intakes cause really funny air fuel ratios. They also say that an AFC2 can be used to corect that and make more power. I did some further researching and found a post from about 2 years ago and found someone that did put the afc2 on there na setup? There were all kinds of issuses that you couldn't program below 4000 rpm's or you would get the CEL, and there were more issues that the ecu learns the air fuel curves and returns them to factory setting. I don't really understand how this is possible or everyone's turbo kit would be running lean after the ecu learned their new curve. The issue before 4000 rpms wasn't really discussed in detail any ideas on what the problem was there.
09-25-2006, 03:15 PM
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I/H/E will make you run rich and yes, your computer will compensate by drawing more air in through the intake. It's not a big difference when you only have I/H/E and get the A/F tuned with an AFC2, but if you want an A/F tuner AND VVT-i controller, get the CamCon. I've heard great things about it and it's the best of both worlds. It's only about 320$ and is a directly plug in for the VVT-i. I'm getting it in the spring. For an NA setup, its expected to gain about 15 whp and 20 wtq. Not bad just for A/F metering and VVT-i control.
09-25-2006, 03:19 PM
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Originally Posted by web
I/H/E will make you run rich and yes, your computer will compensate by drawing more air in through the intake. It's not a big difference when you only have I/H/E and get the A/F tuned with an AFC2, but if you want an A/F tuner AND VVT-i controller, get the CamCon. I've heard great things about it and it's the best of both worlds. It's only about 320$ and is a directly plug in for the VVT-i. I'm getting it in the spring. For an NA setup, its expected to gain about 15 whp and 20 wtq. Not bad just for A/F metering and VVT-i control.
09-25-2006, 03:24 PM
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YA i read about about the CAMCON was also thinking about that too. Ya can you confirm those numbers give a link to a post or something. Wouldn't the vvti controller just run crazy cam timing all the time and hurt your gas mileage though or can actually adjust when the timing kicks in.
09-25-2006, 03:25 PM
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That is a the claim. Maxed tuned, I'm sure it would be close to that. You can gain quite a surprising number from simply adjusting your fuel ratio. VTECs see great gains with SAFC-IIs, and since the VVT-i is the "cousin" setup of the VTEC, it could be similar.
I would assume that with professional tuning and a full NA setup, you could acieve these numbers or get really close to them.
I would assume that with professional tuning and a full NA setup, you could acieve these numbers or get really close to them.
09-25-2006, 03:28 PM
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09-25-2006, 03:34 PM
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And, depending where you live, yes, the 15whp could be produced due to lower air temperatures. Further north creates more power than further south due to ambient temperatures. I kind of like Maryland for that reason b/c it's both extremes in the seasons. Getting cold here and since I go out a lot on the highways, winter driving is much more fun.
09-25-2006, 08:03 PM
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Originally Posted by web
How do you figure when turboed tCs are running 240 whp on stock blocks and head?
NA is completely diff. thing!!
09-25-2006, 08:15 PM
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180 whp on a tC would need some modifications done to the head (P&P, valve work)
Just from your standard bolt ons i/h/e you won't get anywhere near 180 whp.
If you didn't want to do anything to your head getting 180 whp on a NA tune will be really difficult and really expensive.
Just from your standard bolt ons i/h/e you won't get anywhere near 180 whp.
If you didn't want to do anything to your head getting 180 whp on a NA tune will be really difficult and really expensive.