stock formula doing 15s ?
#42
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have your buddy with hp tuners scan the car for you - it doesnt take any credits to scan or to clear codes only if you are using the "editor" portion to change tune parameters do you need to license the file.
If the cats are clogged it should have KR like crazy when you get on it.
If its bad coils , plugs ,wires ( ignition) it should be showing a lot of misfires if he logs misfires.
if its a fuel delivery issue the 02 voltages should be reading real lean even when its in open loop - 15 seconds would be damned fuel starved if its a fueling issue.
If the cats are clogged the manifolds should be glowing red after a pass if you lift the hood - but you shouldnt be getting on it with a major issue unsolved unless its once just to see if the cats are glowing and I would make it brief...
our speculation/educated guesses could be way off too - we dont have the car you do , have your friend save your scan and e mail it to you and maybe you could e mail it to a couple of us to review for you - I havent poked around in the tuning section on here to see if you can post an hpt scan or not but if you can that would be a good idea too
or you can try asking for help in your regional forum , I am sure there are some knowledgeable members in your area-this is a pretty popular platform so try posting a link to this thread in the midwestern section maybe???
Last edited by murphinator; 09-04-2012 at 07:11 PM.
#44
so I was at work today and I talked to some techs there to to get an idea of what's going on and what you guys are telling me is exactly what going on with the car but I haven't looked at the cats to see if they were overheating but my guess is they have to be I don't want to take it to the track until I install the exhuast with my buddy with HP tuners and read the o2s I think I'm gonna isntall a wide band to I just think its throwing my whole car off but I just don't think theses computers are that smart were it picks that up so I just think its not breathing correcty could be wrong tho but we will see and I will definitly send the data to who ever wants to see it
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#45
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Many things can cause this kind of power loss.
I would not jump to any conclusion based on what is known so far. Tossing on new exhaust might not do anything at all. This car needs to be gone over by a person that knows what they are doing with a scanner, IMO.
If you are getting codes for the front O2s, I would start by addressing that. Also, have you looked at things like fuel pressure (idle and under load)? Someone else mentioned cleaning the MAF, I would recommend that as well.
Last edited by RPM WS6; 09-04-2012 at 11:15 PM.
#46
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so I was at work today and I talked to some techs there to to get an idea of what's going on and what you guys are telling me is exactly what going on with the car but I haven't looked at the cats to see if they were overheating but my guess is they have to be I don't want to take it to the track until I install the exhuast with my buddy with HP tuners and read the o2s I think I'm gonna isntall a wide band to I just think its throwing my whole car off but I just don't think theses computers are that smart were it picks that up so I just think its not breathing correcty could be wrong tho but we will see and I will definitly send the data to who ever wants to see it
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#47
well before i even knew of this problem i already ordered my exhuast so its really not wasting money the car is not missing or slipping the car seems to be fine and i already cleaned maf pretty much eliminated some things already the next thing to do is the exhaust and wait and see it should be here this weekend im 19 years old and im an apprentice tech i know i really dont know alot right now but thats why i asked for some help becuase this is my car and im sure you techs know where im coming from i appreciate all off the great knwoledge you guys have told me i understand most of it and it has helped i will get this car running right or a least find out whats wrong with it
#48
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I have seen a car go from running mid 7s in the 1/8th to running nearly mid 8s due to a faulty set of front o2 sensors.
Fix the sensors, ditch the cats, and do a tune up and go from there.
#49
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Also, I think the front O2s are a bigger concern than you might realize. This is why:
You mentioned that you are a tech; as such, your first mission should always be to diagnose before just changing parts. Looking at things like fuel trims and fuel pressure, and fixing the bad front O2s, should be done before tossing on new exhaust. When trying to fix a problem, you want as few variables as possibile.
Last edited by RPM WS6; 09-05-2012 at 11:23 AM.
#50
TECH Fanatic
You mentioned that you are a tech; as such, your first missions should always be to diagnose before just changing parts. Looking at things like fuel trims and fuel pressure, and fixing the bad front O2s, should be done before tossing on new exhaust. When trying to fix a problem, you want as few variables as possibile.
#55
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I'm just gonna do exhuast when it comes in this week and my plugs and some fluid changes drive it around and see what happens maybe I can ask my friend if I can ad my vin on his hp tuners to I'm pretty confident with this and I will let you guys know what happens thanks for all the advice
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and btw dont get too upset about a few ppl on here saying its the driver, in our defense you have been posting as if your are very new to all this, you have stated on the first page that this is your first race car, that you are new to ls1's and never owned one or and f body. that and your 60 ft time points to the idea that you are new and do not know how to drive your car yet. yes you claim you didnt spin but its very possible that since your new to this car that you were spinning and you had no idea. and just because your friends have tracked the car as well doesnt mean that they know how to drive it either. dont get upset just pointing out a few things so you can understand why we on ls1tech are saying this. maybe post a vid of your runs if you have them.
#56
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I don't understand how you think a new exhaust will fix any of this stuff. Instead of worry about making your car faster and any mods you need to get it working properly.
You want to go faster? Make your car run at it potential, I've seen some shitty ratted out cars with loads of mods that run like **** because they have problems, ones that easily fixed at that.
OP you keep saying thanks for the help but your doing none of the things suggested to you. Instead continuing to drive it and take it to the track, worry about your codes and other issues. If you have faulty o2's that is the first thing to look at. Check your hoses get it scanned and check the data to see if anything jumps out at you or one of your buddies. You say your a tech but your sure not acting like one.
You want to go faster? Make your car run at it potential, I've seen some shitty ratted out cars with loads of mods that run like **** because they have problems, ones that easily fixed at that.
OP you keep saying thanks for the help but your doing none of the things suggested to you. Instead continuing to drive it and take it to the track, worry about your codes and other issues. If you have faulty o2's that is the first thing to look at. Check your hoses get it scanned and check the data to see if anything jumps out at you or one of your buddies. You say your a tech but your sure not acting like one.
#58
throttle body cable did seem a little streched to me gonna look atthat now all fuel pressure was ok but that doesnt tell me if the pump is bad i will have to try to drive it and check it some way and im getting exhuast regardless becuase thats what i want i will get this car running right its just a matter of checking thing im narrowing stuff down
im pretty sure my buddy knosw how to drive hes got hes car deep in the 10s
id have to look at this where would this good idea but was it running like **** i mean were thaere any side effects to it thanks ?
yes it did I took it off after the first run tho
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this doesnt really seem to be the best way to go at this. me and of most everyone here are thinking the same. i dont think just throwing on a new exhaust will fix the problem. if you have a problem instead of just throwing parts to "see what happens" you should be diagnosing and only buying parts when youve found the problem or at least 90% sure you have. engine codes just dont set for the fun of it, the codes set for a reason OP. however OP in the end its your car and your money so go about it however you want to, all we can do is offer advice were not the ones out there fixing your car.
and btw dont get too upset about a few ppl on here saying its the driver, in our defense you have been posting as if your are very new to all this, you have stated on the first page that this is your first race car, that you are new to ls1's and never owned one or and f body. that and your 60 ft time points to the idea that you are new and do not know how to drive your car yet. yes you claim you didnt spin but its very possible that since your new to this car that you were spinning and you had no idea. and just because your friends have tracked the car as well doesnt mean that they know how to drive it either. dont get upset just pointing out a few things so you can understand why we on ls1tech are saying this. maybe post a vid of your runs if you have them.
and btw dont get too upset about a few ppl on here saying its the driver, in our defense you have been posting as if your are very new to all this, you have stated on the first page that this is your first race car, that you are new to ls1's and never owned one or and f body. that and your 60 ft time points to the idea that you are new and do not know how to drive your car yet. yes you claim you didnt spin but its very possible that since your new to this car that you were spinning and you had no idea. and just because your friends have tracked the car as well doesnt mean that they know how to drive it either. dont get upset just pointing out a few things so you can understand why we on ls1tech are saying this. maybe post a vid of your runs if you have them.
Originally Posted by sreve
Did the floor mat slide and wad up under the loud pedal?
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#59
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as stated before you go to the track, you need to do some maintenance. first thing i did with my ws6, was swap the plugs, wires, gaskets, clean the TB, and check the codes for free....see what they were and then hit the dyno for a small tuneup. other than that youll need some good tires. and should go 13's in the 1/4 and 8.50's in the 1/8 depending on DA