Well after getting the motor broke in 1100 mi. I carrie dthe car to the trk sun night.. Keep in mind the fastest I have ever been is a 12.70 in my Vette before this car. First pass was a 11.26 @ 122 on 22 lbs. my 60 ft was a 2.02 I know what a rooky.. 2 nd pass was a 11.12 @ 120 with a 1.8 60 ft. an last was @ 24 lbs an went 11.03 @ 124 but 02's went down to .699 on that pass so I put it back on t he trailor before I tore it up.. I got a Double pumper an 72's so its got to be that theres not enough fuel in the chip cause the trans + was maxed out @ 14% WOT.. Motor is ported irons with 45A with 72's an V2 FM with a 3400 9/11. Me in the car weighs 3375..
Finally got to the track!! Wasn't that bad!!
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jamericaniSS
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peterkin said:Dam good passes, but 3375 with you in it?
How? Do you have fiberglass parts on the car? What are you a ghost?
Ghost, lol
RUQWKNF27 said:
double pumpers and 72's are more than enough for that motor to run into the 10.50's so you must have some issues with your fuel delivery, check to make sure both of your double pumpers are up to potential, check fuel filter, i would assume your double pumpers are hotwire if not your losing juice to the pumps, check for shorts along the cables going back to the pumps, you dont want to lose juice to the pump doing a WOT pass, oh and set fuel pressure at 45psi line off
i think thats about everything i can think off right now..I have my original hot wire going to the 1st pump <10 G.>. An I have the 2nd wire being 10 gauge too going to the 2nd pump.. New fuel filter when this was done all installed 2 weeks ago.. When I checked my fuel PSI is was @ 50 lbs vacumn off . I know its supppost to be set on 45 with the translator but had a problem getting it to lock on 128 for the inj's so raising thwe fuel PSI fixed it.. Only thing I could figure was that the fuel PSI being on 50 instead of 45 was that it was causing the inj's to go static an close up @ the end of the 1/4.. But the last run I dropped the fuel down 2 lbs to 48 an got the lowest reading which was the .699 02 .. So I think its got to be that theres either not enough fuel in the chip since trans. was maxed out @ 14% or maybe I got some bad 72's.. Could the seet fuel PSI being set to 50 lbs instead of 45 lbs cause this you think?? Injectors are new 1000 mi. but they can still be bad. Checked double pumper after install by applying air to hobbs an the 2nd pump came on. Adjusted it from 6lbs to where it comes on now @ 15lbs. So I would assume it works.
Car has fiberglass bumpers front an rear with aluminum supports. No power options an no tilt which im sured oesn't save weight but it sucks not to have tile steering feels like im driving a semi. No A/C An I try to be a good person so I guess my conscious isn't weighing me down either..
Congrats on the new times! Wish I was as light as you. What is your FP at full boost? You got tons of room with a DP and 72's. What is your injector DC %? I just went 139 with 75's, I have bigger fuel lines with separate feeds for both pumps, but still..... they will provide some flow.
Does the scanmaster show duty cycle?? I can't even remember since my brain is fried from working all the time.. If so what is the abbreviation on the scanmaster for duty cycle. I know im not using all theses 72"s @ 11'0's as stated before I have enough for mid 10's.. Each of my pumps have 10G going to them so I know they got the juice. Only place I think i could be loosing juice is where I had to trim some of the wire off the 10 G to use the small crimp terminals on the relay for the 2 nd pump.. I still thinkt he chip just need smore fuel added to it...
No way you're maxing out those injectors...I ran the time in my sig and the injectors were only at around 60-65%...that was 20PSI boost on my old TE62 turbo...on the 10.99 run I had static FP set at 45 and added 2%( about 1 more PSI of FP) via the Trans+...
car could have went faster but between my lazy 60 ft times an the car leaning out on top end wasn't gonna happen. Wasn't gonna happen anyway running outta fuel. Man that was scary to think I could have tore something up.. But still running outta fuel an running a 11.0 is pretty good in my book.. This car making the power it was making surely compensated for my ill experince in drag racing.. Should go some mi to upper 10's when the chiop is fixed an I can learn to wake up @ the tree!! 
That's really strange...I can't believe you had the fuel maxed out and still not getting enough??...I assume you don't have an EGT or some other tool to verify that it was running leaner...I really don't trust O2 numbers alone...did you have any knock on the last run?...if not you may not be running as lean as you think you are...if you were running 50 PSI static FP and had it set at 14% rich on Trans+ that comes out to 64 PSI and I don't think that includes boost... 
...something ain't right...before you send the chip back I would set the FP to 45...click the WOT fuel on Trans+ to 4%..which would be around 47 PSI...turn the boost down...tape a FP guage to the windshield and do a few blasts...see if the FP is keeping up...
...something ain't right...before you send the chip back I would set the FP to 45...click the WOT fuel on Trans+ to 4%..which would be around 47 PSI...turn the boost down...tape a FP guage to the windshield and do a few blasts...see if the FP is keeping up...Thats what I plan on doing is turning the boost down to 20 # an verify that I have @ least 70 lbs of fuel PSI with the fuel on the base 45 lb setting that mike says to set it by. I did this the other day before I went to the track an I swear it was @ least 70 on the fuel psi gauge but I will do this again to make sure.. Yes I do have a EGT gauge in the car but no battery i n it @ the time..What are good #'s to go by as far as EGT goes to know that you have enough fuel??? On the scanmaster I think knok was around .08 an the 02's were @ .699 on the last run.. Guys told me they could here the car cutting up @ the end of the track. I though it might be the plugs but i put new UR5's in there gapped @ .30 the day before. So I know its fuel related.. My buddy thinks its the chip cause we had to raise the fuel psi to get the blm's right. But now thats the least of my worrys. If all this is base fuel related cause the fuel was too high to begin with (50lbs vacumn off) an setting on 8% fuel WOT. The last run I dropped the fuel to 48 lbs an incresed the WOT to 14%. Could I have been causing my own problem?? Guess I will see when I put it back to normal (45 lbs) an 4% WOT an do some WOT passes..!!
Dusty Bradford
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Chris, I can't remember what kind of O2 sensor you're running. If it's a stock one and you've run a good bit of leaded fuel in it then it could be bad and will read on the low side. I don't recommend anything but the 3 wire heated sensor that Poston's and other vendor's sell that comes with a relay and just plugs in. These are much better than any DENSO and last forever. As much as I raced I only went through 2 sensor's a year. We have ruined the DENSO in 2 weeks with C16.
If the car wasn't detonating then it could be too rich and causing it to break up a little. This is where you need to be able to look at the plugs to tell if they are rich or detonating. If the plugs are real black then it's too rich. It is possible you have a bad O2 sensor which is reading low and you have the car so rich it's popping. An egt will also lie to you if the car is way rich since a lot of fuel is burning in the headers making it appear lean by temp readings.
Check WOT fuel pressure.
Check voltage to fuel pumps as close to the pump as you can get a reading. With the hot wire kits they should both be in the 14 range.
Wouldn't hurt to put in a new set of plugs before you run it again, gap them at .028-.030
If the car wasn't detonating then it could be too rich and causing it to break up a little. This is where you need to be able to look at the plugs to tell if they are rich or detonating. If the plugs are real black then it's too rich. It is possible you have a bad O2 sensor which is reading low and you have the car so rich it's popping. An egt will also lie to you if the car is way rich since a lot of fuel is burning in the headers making it appear lean by temp readings.
Check WOT fuel pressure.
Check voltage to fuel pumps as close to the pump as you can get a reading. With the hot wire kits they should both be in the 14 range.
Wouldn't hurt to put in a new set of plugs before you run it again, gap them at .028-.030
Just put in new NGK UR5"s gapped @ .30 sat the day before the track. Previous plugs were Autolite 23's gapped @ .28 the plugs has a loght ash color to them.. My current 02 sensor is a Denso with about 1100 mi. on it an about 8 gallons if that much of race fuel ran thru it.. I have thought aobut the heated sensor an guess I will get one as you say they give better readings an they are suppost to help the car more on start up too I think I read somewhere.. Is it not possible given all else is ok that the chip does not have enough fuel in it?? I know for sure the car was popping @ the end. An after reviewing the video it was also cutting out during the burnout.. Hopefully I will have sometime tomorrow to tinker with it after I replace all these stripped wheel studs.. My right rear only has 2 left :biggrin: .. Here lately i'm mostly all work an no play. Too bad wifey isn't into TR's I could buy her one an I would have more time for the car an her together.. Back to reality!!!
Dusty Bradford
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There's several possibilities. The fun part is narrowing it down until you find the problem.
Direct Scan is a major help at this point. One look at inj dc and you'd know if it had enough fuel in the program. Your car is light so it doesn't take a whole lot of power to go 11.00 compared to a heavy weight. Given that I have a hard time believing your chip along with the translator at 14% rich won't have enough fuel to go 11.00. Just guessing here but that would mean your chip would have less than 50% dc at wot. It is a possibility though and needs to be looked at.
Still could be a faulty injector
The ecm fuel's off of MAF, you also need to look at WOT maf readings. If your MAF is off then you won't get enough fuel. Not likely but still a possibility. Unless you have the fast update your scanmaster only takes a shot every 1.5 seconds or so. DS takes 18 each second. There is a whole lot of area uncharted without DS running on the pass. It's easy to tune one then run without direct scan but it's hard to try and sort out problems without lots of info to look at.
Each time you increase WOT fuel in the T+ it increases the MAF reading which in turn gives you more fuel. Without direct scan how do you know the MAF reading is increasing with each step.
Lots of things can cause your problems. First you'll have to go over the fuel system. Then electronics, Possibly flow injectors. Your just getting started.
Lots of information is your friend, DO I HAVE TO MENTION DIRECT SCAN AGAIN?????
Direct Scan is a major help at this point. One look at inj dc and you'd know if it had enough fuel in the program. Your car is light so it doesn't take a whole lot of power to go 11.00 compared to a heavy weight. Given that I have a hard time believing your chip along with the translator at 14% rich won't have enough fuel to go 11.00. Just guessing here but that would mean your chip would have less than 50% dc at wot. It is a possibility though and needs to be looked at.
Still could be a faulty injector
The ecm fuel's off of MAF, you also need to look at WOT maf readings. If your MAF is off then you won't get enough fuel. Not likely but still a possibility. Unless you have the fast update your scanmaster only takes a shot every 1.5 seconds or so. DS takes 18 each second. There is a whole lot of area uncharted without DS running on the pass. It's easy to tune one then run without direct scan but it's hard to try and sort out problems without lots of info to look at.
Each time you increase WOT fuel in the T+ it increases the MAF reading which in turn gives you more fuel. Without direct scan how do you know the MAF reading is increasing with each step.
Lots of things can cause your problems. First you'll have to go over the fuel system. Then electronics, Possibly flow injectors. Your just getting started.
Lots of information is your friend, DO I HAVE TO MENTION DIRECT SCAN AGAIN?????
Ok well it loks like my christmas list consist of a heated sensor an a direct scan.. I don't think old santy has any elf's rebuilding LC2's theses days.. Whers the best place to get a direct scan an will it just neeed a basic ole laptop.. I think you said you sold yours.. right??
Dusty Bradford
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Any old laptop will work. I gave like $100 for mine with windows 95.
When I ordered DS Conley's was the only ones that had it at the time but about any vendor should carry it.
Like I said. You can get by without it but in times like these when your chasing problems it's a big help narrowing down issues. I've saved many weeks chasing problems with DS.
Now get to troubleshooting that fuel system. You might be able to fix it soon and you can spend the DS money on her instead of the car.
When I ordered DS Conley's was the only ones that had it at the time but about any vendor should carry it.
Like I said. You can get by without it but in times like these when your chasing problems it's a big help narrowing down issues. I've saved many weeks chasing problems with DS.
Now get to troubleshooting that fuel system. You might be able to fix it soon and you can spend the DS money on her instead of the car.
