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Dually Projects \  ben shadys truck

ben shadys truck

Dually Projects
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jcampbell1180   +1y
You seem like you know what your talking about. I hate computers. I get frustrated easily.
pig rig   +1y
yea computers frustrat the hell out of me too mine always seems to go to porn when I least expect it
pig rig   +1y
hey someotherguy I know I've read some of your insight on other forums but being were on the subject kindof
using the heated o2 is kind of a bandaid so can I ajust the fuel pressure down so it not burning so rich or do I run into the chance of leaning it out to much on the top end
at presnt I'm trying to get it to run well enough to put it on a dyno and reajust the ecm
ben_shady1   +1y


The coolant temp sensor is that first thing I replaced and it didn't do anything really. While I was in there I changed the one for the gauge on the dash since I had a mech gauge and it burnt up in the fire. I ordered new wires from gear vendors yesterday and a new spedo gear to get it reading right. I called my exhaust guy and talked to him about putting me an O2 bung into a primary tube so it gets hot enough to work since it's all the way in the collector. So I'll see what my mechanic comes up with and go from there. I called lunati today about a cam so I think I'm gonna finally put this edelbrock intake on it and while I'm in there I'm gonna go ahead and put in a bigger cam. The guy from Lunati said to run a 60200 or a 60201 and it'll be fine with my TBI. I'm probally gonna take these lil peanut heads off it too and put some carb heads off an older gen IV BBC on it. With a cam,heads and intake it should wake it up alot. When it comes to tuggin a big trailer loaded down with rides all the power I can get is a plus...lol

I'll keep ya'll informed on what is going on once I hear back from my mechanic

-Shady

Oh and thanks campy.. Glad you like.. Does it look a lil better than it did donked out at reso? lol
jcampbell1180   +1y


Oh, foe sho, Bro! It looks great, Dude. I really like it!

How's the ride? You're not getting any weird sway, are you?
liljlowrider   +1y
damn man looks good.... cant believe you got the spikes on there and actually got them to tuck..
ben_shady1   +1y


Yeah it sways like a mofo but mostly body lean around corners.. That's why it's gettin the front and rear sway bars back on it....lol
skidrow   +1y
hay shady i think i still have some 049 head at the shop 74 454 best flowing stock ovel port heads
ben_shady1   +1y
My buddy has 2 sets of 454 heads dunno what casting though.. I'll check and see what he's got.. I might be interested
someotherguy   +1y

Hey Pig,

The heated O2 is better in general, an O2 sensor has to warm up for it to read properly, so it's depending on the exhaust heat. When we do stuff like gut our cats or chop them off, and put on free flowing mufflers, you're reducing exhaust heat, so the old single wire O2's don't work as well as they used to. A heated one is the same basic sensor except with a heating element in there so it's not really depending on the exhaust.

The reading on the O2 or any other sensor won't affect your fuel pressure, that's controlled by the fuel pressure regulator in the TBI (or inside the Vortec intake, sorry, I can't remember what year truck/what engine you've got) and stays pretty much the same no matter what.

If your truck is running too rich usually it's a problem with the CTS lying to the computer that your engine is much colder than it really is. Sometimes it's the O2 sensor but usually a bad O2 can't make it run crazy rich. Fuel pressure regulator problems can be an issue too. But bottom line, if you want the computer engine to run right, it's gotta be able to get into closed loop, and it won't do that with a cold thermostat or no thermostat. If you have an infrared thermometer or can borrow/steal one, get your truck up to temp and shoot the thermostat housing to see what it's REALLY running at. Then you can pull a reading on the CTS with an ohmmeter, I have a chart around here somewhere from another forum that will show what the reading should be for a range of temperatures.

I'm no computer engine wizard, not even gonna pretend I'm a mechanic, but I have been messing with these TBI engines for probably the past 8~9 years personally and a little bit with the Vortecs too. Learned a lot and still learning.

Richard