Running rich I think
Thread Starter
Instructor
Joined: Nov 2009
Posts: 130
Likes: 0
From: Wentzville mo
Running rich I think
Had my 383 built and tuned by TPIS all I did was install it. I am getting a strong odor that burns your eyes and makes your clothes stink like it. The smell is less when it is warmed up. I am also getting a black soot on the rear facia and exhaust tips. I have no emissions at all just mufflers. What should be my next step a wide ban o2 sensor or a data logger?
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Most engines require a dyno tune and tweaking to get the tune right.
Having no cats also makes the smell @ idle worse
If you tell us what year / engine we can tell you what data logging software and cable to buy
Drifting
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Here's the cable for your 86:
http://www.moates.net/aldu1-and-cabl1-p-127.html
You will enable the 10k resistor for your 7165 ECM.
You may use this software here:
http://www.ttspowersystems.com/DataM...ownloads2.html
You want file DM35x32, and you may use it 20 times for free.
learn how to use it here:
http://www.scotthansen.net/data.html
Learn to playback the file with the histogram open. This will give you your BLM averages. If rich they will be below 128, and lean is above. You could send it to TPiS for their review, but you may need to find a reliable tuner. TPiS doesn't like you much after your card has been charged.
http://www.moates.net/aldu1-and-cabl1-p-127.html
You will enable the 10k resistor for your 7165 ECM.
You may use this software here:
http://www.ttspowersystems.com/DataM...ownloads2.html
You want file DM35x32, and you may use it 20 times for free.
learn how to use it here:
http://www.scotthansen.net/data.html
Learn to playback the file with the histogram open. This will give you your BLM averages. If rich they will be below 128, and lean is above. You could send it to TPiS for their review, but you may need to find a reliable tuner. TPiS doesn't like you much after your card has been charged.
Thread Starter
Instructor
Joined: Nov 2009
Posts: 130
Likes: 0
From: Wentzville mo
The specs on the cam are 560 lift and 225 duration, with Dart 200 pro 1 heads, miniram intake, 52mm TB, 28 lbs injectors, 10.8.1 compression, set to 8 deg base timing. TPIS programmed the chip and the engine runs strong, I just am worried about too much fuel causing damage to rings. Fuel pressure is set to 55 psi with vacuum line off.
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Could try dropping the pressure down and see how that effects the fueling / performance.
My 383 had better heads , same cam and injectors with a HSR and ran fine @ 43.5 psi with a less than perfect home tune by me
No rich idle at least
My 383 had better heads , same cam and injectors with a HSR and ran fine @ 43.5 psi with a less than perfect home tune by me
No rich idle at least
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
if you bump 28 lb injectors to 55 psi they flow 31.5 lbs,
my guess it was done to make max hp on the dyno run and not melt the pistons,
you probably need to back it down to around 43 psi to make it driveable.
my guess it was done to make max hp on the dyno run and not melt the pistons,
you probably need to back it down to around 43 psi to make it driveable.
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Thread Starter
Instructor
Joined: Nov 2009
Posts: 130
Likes: 0
From: Wentzville mo
I backed it down to 45 psi and called TPIS and they said to take it down to 50. Ordered a cable from moates for data logging and will go from there. Haven't been able to drive car because of the weather in St Louis. Thanks for the help