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Old 02-23-2013, 06:05 PM   #1826
Layvon
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I'm at 24k for motor build, but I sold 7500 in parts off it. Still under 30k for 550+ including price of car.
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Old 02-23-2013, 06:22 PM   #1827
manitou
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I haven't deducted for all the parts I've sold, SI I nay be overstating my total investment. I did get $1700 for my FXT 5 speed swap when I sold it and I have another slew of parts to sell off now.

I guess though bottom line is we have cars with exceptional performance as compared to their relative cost!
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Old 02-23-2013, 07:37 PM   #1828
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Quote:
Originally Posted by manitou View Post
I guess though bottom line is we have cars with exceptional performance as compared to their relative cost!
Bingo!
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Old 03-06-2013, 02:14 PM   #1829
Bariga
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Borrowed EGT thermocouple amp from kelly to compare it with AEM system i got in place.
Will hook up 2 cylinders to AEM and other 2 to EGT systems and post some numbers!
I just want to prove to my self that AEM products are junk!


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Old 03-06-2013, 02:19 PM   #1830
Layvon
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you going to monitor all 4 at the same time or just compare data?

I kinda wish I got a little better system than the PnP now, you and Kelly can log so much more fun stuff than me haha.

I think quad AFR gaugues would be nice. Maybe this is because I dont know our motors as well as I should, but it sure would have helped with the injector issue I had.

Nice work Anton!
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Old 03-06-2013, 04:34 PM   #1831
Bariga
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Actually AEM unit is not that bad at all as i thought! Seems like its responding little bit faster, ill post some logs later.
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Old 03-06-2013, 06:31 PM   #1832
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Quote:
Originally Posted by Layvon View Post
you going to monitor all 4 at the same time or just compare data?

I kinda wish I got a little better system than the PnP now, you and Kelly can log so much more fun stuff than me haha.

I think quad AFR gaugues would be nice. Maybe this is because I dont know our motors as well as I should, but it sure would have helped with the injector issue I had.

Nice work Anton!
The only problem with quad o2 is having the sensors live under the heat and compensation for backpressure.
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Old 03-06-2013, 06:33 PM   #1833
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Aem makes a kit now but it's like $600 for the 4 channel amp with 1 02 sensor. $200 for the back pressure sensor and another $300 for another 3 sensors that's like $1,100
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Old 03-06-2013, 06:52 PM   #1834
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Damn that is a lot.

I never thought about the back pressure. What kind of effects does that have on the AFR?
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Old 03-06-2013, 07:31 PM   #1835
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Quote:
Originally Posted by Bariga View Post
Actually AEM unit is not that bad at all as i thought! Seems like its responding little bit faster, ill post some logs later.
Damn, for $89 all I was looking for was a temp. How much slower responding is it compared to AEM?
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Old 03-07-2013, 12:17 AM   #1836
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Quote:
Originally Posted by Layvon View Post
Damn that is a lot.

I never thought about the back pressure. What kind of effects does that have on the AFR?
Depending on pressure, you can be 13:1 and it'll read 10.5

So I would say a very bad effect.
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Old 03-07-2013, 11:44 AM   #1837
Layvon
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Is it predictable Dom?

What I mean by this, should a user run the 4 sensors in the runners along with the one 18"+ down from the turbo like normal, would you be able to tune off the normal wide band, and monitor for per cylinder changes on the other 4?
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Old 03-07-2013, 12:38 PM   #1838
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Quote:
Originally Posted by Layvon View Post
Is it predictable Dom?

What I mean by this, should a user run the 4 sensors in the runners along with the one 18"+ down from the turbo like normal, would you be able to tune off the normal wide band, and monitor for per cylinder changes on the other 4?
I'm not sure but I'm gonna go out on a limb and say no. The one in you DP would give you consistent results but the others would be varying based on EGBP which will not be constant based on engine load, boost, state of turbo spool, etc so you wouldn't be able to get any consisted correlation between the DP and the header mounted O2 sensors readings without knowing the pressure in the header at that instant.
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Old 03-07-2013, 03:24 PM   #1839
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Quote:
Originally Posted by Layvon View Post
Is it predictable Dom?

What I mean by this, should a user run the 4 sensors in the runners along with the one 18"+ down from the turbo like normal, would you be able to tune off the normal wide band, and monitor for per cylinder changes on the other 4?
It is predictable if an accurate pressure compensation is involved. Without knowing EGBP, it's not.
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Old 03-07-2013, 07:25 PM   #1840
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Quote:
Originally Posted by kellygnsd View Post
I'm not sure but I'm gonna go out on a limb and say no. The one in you DP would give you consistent results but the others would be varying based on EGBP which will not be constant based on engine load, boost, state of turbo spool, etc so you wouldn't be able to get any consisted correlation between the DP and the header mounted O2 sensors readings without knowing the pressure in the header at that instant.
If you get the AEM unit, it will do the processing for you.

The real issue is the price and utility. You'll need to weld in the 4 bungs and purchase the o2 sensors, and I wouldn't expect them to last very long at high boost despite a heat sink. Once the per cylinder comps are set, I'd think that normal tuning off the regular wideband could resume. In other words, I dont think that per comps would need to be modified often unless you have crappy injectors that you'd like to monitor. The only question that I have is how long do those 02 sensors live so close to the exhaust ports, even with the heatsinks? I would think that you're primarily looking for the delta between cylinders more than using the individual sensors for closed loop feedback control. Once you can reduce the deltas, how often do you need to log?

If they don't last long, I'd probably pay half or a portion and ask a tuner to pay half so that they could keep it for other cars as that would make it more practical for dyno use. But then again, who's going to weld in 4 bungs just for a good tune?
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Old 03-08-2013, 01:04 AM   #1841
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I would weld in 4 bungs

Small price to pay to know all 4 cylinders are equally happy.
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Old 03-08-2013, 08:23 AM   #1842
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Quote:
Originally Posted by alcoolaid View Post
I would weld in 4 bungs

Small price to pay to know all 4 cylinders are equally happy.
This!!

Once you see where each cylinder afr wise and make your changes, as you tune the car afr wise off the main wideband the 4 in the primaries should all remain the same.

You'd be surprised at how much power you'll pick up and how much safer it would be on the engine.
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Old 03-09-2013, 01:43 PM   #1843
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5 gas analyzer is the only real way.

O2's will not be accurate or reliable.
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Old 03-11-2013, 04:32 PM   #1844
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Quote:
Originally Posted by Bariga View Post
Actually AEM unit is not that bad at all as i thought! Seems like its responding little bit faster, ill post some logs later.
We want logs. Bring on the logs Anton.
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Old 03-11-2013, 06:33 PM   #1845
Bariga
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not much to post



cylinder 2 runs hotter for some reason, and little better if i add a bit of fuel. I left cyl 2 with extra 2 units of fuel.

Last edited by Bariga; 03-18-2013 at 10:21 PM.
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Old 03-18-2013, 10:28 PM   #1846
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delete

Last edited by Bariga; 03-19-2013 at 02:47 PM.
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Old 03-19-2013, 02:44 PM   #1847
Bariga
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3d gear 19 psi pump numbers "need to lean it out a bit was tuning with ecu not reading gauge correctly"

10 psi at 3300 rpm
20 psi at 3800 rpm


EGT was at 1300 F on this pull which is low any ideas guy?


Last edited by Bariga; 03-19-2013 at 05:18 PM.
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Old 03-19-2013, 07:41 PM   #1848
Layvon
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Your boost curve has curves now... needs more components
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Old 03-19-2013, 07:59 PM   #1849
Bariga
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that was done on cold header, as soon as i do 3-4 pulls it gets as flat as 11 year old
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Old 03-19-2013, 09:13 PM   #1850
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I need to do a VD of my car to see how she is doing. Is VD easy to setup?
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