Okay here are my 1/4 mile times at the LV Motor Speedway.
Ran 2x....

R/T - 1.019 / 1.342
60' - 2.423 / 2.721
330 - 6.990 / 7.165
1/8 - 10.839 / 10.914
MPH - 64.33 / 64.19
1000 - 14.277 / 14.278
1/4 - 17.220 / 17.168
MPH - 76.38 / 77.94

I know I was spinning....

Anyway, those are the times I was running. I do have a 2.73 open rear... Now I KNOW I can get to speed with lower gears! I hate these highway gears.

And maybe I'll finally get those headers on.

Yicch. Oh yeah, the car was pinging on the 1st run....
So there are issues with heat too.

 

Wanna be in my support club? tbi owners against open rear ends.

 

17 second 1/4 mile and u have a 350. That sure doenst sound right to me even if u do get better gears ure still gonna be in the 16s with a 350.

 

How the heck are you running that slow with all stuff you got done to your car. With a list like that you should be running 13' in the 1/4. So what is the deal

 

Dude, you should be running a LOT better than that. I only have a drop base (I know) open element and headers and catback and I'm running 16 flat consistently. Something ain't right. are you running stock exhaust?

 

nevermind, didn't see the hi flo cat and flowmaster catback.

 

Could be that the computer needs to be tuned better to the motor too. I am just using the stock chip. I'm sure if the computer were tuned to the motor, I'd see better numbers.
That's another guess.

 

yea you need some major tuning in a BAD way. I say get the headers on and get a chip or start burning your own chips...you should be way faster than that.

 

Try and leave on the third yellow light as well, by the time you see green it's too late. Is it a manual or automatic? A little tire spin seems to work better for me than ***** footing it or bogging it, I'm sure with gears you'll do much better. What tire pressure are you running? Are you burning out? You should have a much higher MPH than that, make sure you don't roll too far into the staging lights, that might help it a little. What water temp do you run at? What is the elevation? I don't know how people on this board are running 15's with what little mods they have, I guess it's just keep tuning until you can't anymore, then tune it some more.

 

I bet you're running pretty rich with that stock chip.

 

Thanks Tony...
Normal temperature running is around 175-180 degrees.
It's an automatic. I was mashing wayyy too hard on the gas and spinning... My tires were around 25 PSI.... I think my passenger side was less. I should have been around 30 for both, I think.
My temperature at the lights was around 230ish.... The line was super long and the car was heating up waiting for my turn...
When the car gets hot, it PINGS bad, my SES light comes on, and the car loses power. It is a shame. The elevation (I think) is around 2900. (Guess)
I think the car definitely needs some fine tuning too. I may be running on 7 cylinders too. It was not running well at the track at all.
I'm gonna check the distributor and ESC module, replace the knock sensor, replace the spark plugs and O2 sensor.
Maybe have a mechanic check the oil leak I have too. That has me more concerned than anything else. It's not too bad, but leaves drops everywhere I go.
I'm very disappointed with the results I have. It should have been a lot better. Oh well, live and learn.

 

There's a lot that doesn't fit well for that poor TBI... time to get that thing tuned on a dyno and figure out the optimal settings for it..

 

i second that... even if you have alot of spin you should have a decent trap speed. My friend has a l98 vette powered monte and he still manages to get a trap speed of 98 mph or so even though he only runs high 14's and low 15's

 

Ok, so the elevation factor does come into play then. Try keeping your car turned off in the lanes and just pushing it. Do you build up RPMs on the convertor when you leave the line (probably not if your spinning bad as it is)?

 

Wow, if you're getting an SES light it's most likely because you're running too retarded, not advanced. What happens is rather simple. The ecm does a WOT ping test and if it can't ping the car the 2nd time you go WOT it'll retard the timing a LOT and through an SES light. This was a problem I was having when I used the stock eprom. I had to run a lot of initial timing just so the timing would come "in" faster (helped with backfire through intake).
Does the car feel like serious CRAP when the SES light comes on? If so, move that dissy and it isn't knock you're hearing, it's just not running enough timing.
With a relatively stock eprom from the caprice I ran a 13.8 at 102, I expect more once my fuel pump problem is solved (nothing like watching FP drop when you shift into 3rd gear under WOT).
Power enrichment spark doesn't become active UNTIL the ping under WOT test is completed twice.
e-mail me, I lost your e-mail when I formated my computer.

 

sounds like you got some tuning issues dude my lo3 ran 16.7s and 16.8s all day long bone stock with 215/65/15 tires and the terd 2.73 open rear end something is not right with your car man

 

I sent you Email Jon. Try Snowdg@Earthlink.net

 

Here is a picture....
Thanks to Trav!!!

 

ET can only tell you so much about the car, I car run anywhere b/w 15.4 to 17.1 ETs all day depending on the level of traction I've got.

On the other hand the one thing that varies very little is my trap speeds. I run anywhere from 89.5-91.5 MPH no matter what. Lower mph usually leads to better times for me since power is transferred to the ground instead of building up mph.

It's the MPH that tells you the power condition of your car at the end of the 1/4 mile.

Elevation plays a part in power, that's true, but even with severe changes (3000 ft) you usually only see a 5 mph+- difference usually in trap speeds.

77 mph trap speeds is not right for a 350 with a mild cam. Even with the log headers, you should still be pulling into the 90's in mph.

SES light, its not pinging the ECM checks for its KNOCK. Now if an SES pops up first figure out what code it is.

I have my suspicions, but at high elevation and with a holley 670 TBI, I'm thinking a rich condition at O2 is detected is one of them.

Get us your SES codes and then we'll have a better idea of why you ran like you did.

 

I'm just getting 43.
That is the only code I'm getting.... and I have no other clue.
After my tune up on Friday, maybe things will improve.

 

Actually code 43 tells us a lot and I think I can sum up your problems to it.

Code 43 Electronic Spark Control, Knock Sensor Failure

The ECM regularly checks for knock by backing off timing till it gets some knock counts and figures where its base timing thru ecm should be.

If the sensor is not functioning, it can't determine when or if knock is occurring so it defaults to a safe timing mode (really retarded usually) and gives a code.

With the initial timing off, no matter what you set base too, you will always be at the mercy of the ecm's safe mode hence the low mph when running. That's why even though the ses light goes off, the timing control just ins't working and its running the wrong timing all the time hence the pinging here and the low mph.

The good news is its an easy fix, get a new 350 knock sensor. If you have the old 305 sensor there, its overly sensitive or if you had a 350 sensor, its just plain busted.

 

See JPrevost's post above, search for "code 43" in this board, then get the code43 patch as found in the sticky "patch method demo" in the DIY_PROM board.

Problem solved.

RBob.

 

If only I had a prom burner. Until then, I am at the mercy of what I have. I'll be getting a new knock sensor and hooking it up and hopefully those problems will go away.

 

sounds like you need a tune.