Sounds like you done good for your first time out.

What were you doing so far away from home?

 

He isn't living in FL anymore.

 

In 50 years of drag racing I never really had much use for a shift light. Sorry, not familiar with you combo to know if mid 12s are good or bad. Offhand not bad for a streetcar on street tires. Had issues with a electronic tach causing a miss 40 some years ago, disconnected it and made the final round. Thats when I got hooked on mechanical tach's.

 

I thought the times were slow relative to the dyno numbers until I remembered that Bristol is not even close to sea level - 2000’ or 2500’ maybe?

 

I thought the times were slow relative to the dyno numbers until I remembered that Bristol is not even close sea level - 2000’ or 2500’ maybe?

For all I know the OP has a 283 and a PG, In which case those numbers would fantastic

 

Dyno numbers were posted just yesterday.

 

https://www.trifive.com/threads/had-my-57-210-on-the-chassis-dyno-today.267695/?post_id=2908705#post-2908705

 

Your flying..... good power.

 

Personally, I would program the ecu to make it shift when you want it to at WOT, ditch the shift light and let the ecu do the work. it will be more consistent than you ever could. also, anything sniper is suspect in quality and function.

 

Hotrodg426, he doesn’t have a sniper Efi system. He has a Holley Chinese made “sniper” sheet metal manifold. It‘s probably ok unless there’s a vacuum leak or develops one. And it can’t be too bad with 470 rwhp. On the other hand it may not be a big gain if any over the plastic OEM LS3 manifold. I suspect he likes the bling of the polished aluminum over the black plastic stock manifold.

 

I was referring to the sniper efi shift light. I believe he has a dominator controller.

 

Ok, got it.😜

Automatic shifting would be a good thing for a dozen or two dozen passes. Worry about other things.

 

If it’s an auto, it might as well “auto.” ETs are great; trap speed seems a bit low?
In any case, awesome to take a car that nice to the strip- well done!

 

Well done! Just to put it on the track and make a pass! 12s, not terrible! Now you can start tinkering and dialing in.

 

I have to say this about the tech inspection process. They were running a bracket race event this entire weekend, and Friday's test n tune that i went to was part of it. Tech inspection was a total joke. I mean, there was NO tech inspection whatsoever! The tech inspector guy sat inside a booth. I drove my car over to tech inspection, got out, walked over to him, and handed him a form that I had filled out. He asked me for my car number. I said I don't have one, its not a race car, its just a street car. He said, what number would you like? I said, I don't know, how about 57?

I signed another form, and I was done. He didn't check a damned thing on my car, or look at my helmet, or even ask me if I had a helmet. This isn't some backwoods hillbilly dragstrip out in the middle of nowhere. This is storied Thunder Valley! Even though this wasn't an NHRA sanctioned event, its still an NHRA track. I couldn't believe it.

I have to say, its convenient to live just 5 miles away from the dragstrip! If while I'm at the track, I ever forget something, a tool, a folding chair, whatever, it isn't a big deal to drive home and get it.

Nice looking facility, isn't it? Now you can see why they call it Thunder Valley, because in an actual valley! Notice how the shut down goes uphill.

 

Sounds like you had a good time! I'd be curious to see how it does if you just put it in drive and go.

 

Trust me, I will try that next time. Unfortunately, that next time will be next spring. That was the last test n tune night for the year here.

And yes, all in all, I had a good time. I'll admit I was a bit nervous leading up to the first pass. I was thinking of a thousand things that could go wrong, LOL But after I got that first pass under my belt, I felt much more comfortable on the second pass. Hey, nothing broke, the car hooked and drove straight with no issues other than the shift light, and we drove it home. I'll call that a win. I'll work on whittling down the ET next year. I spoke with lots of people there that came up to me and complimented me on the car, which was nice. Good people out here in northeast Tennessee.

 

Sounds like you had a blast

 

Just curious did you stall it up much on the starting line. I think you could get another tenth out of the 60 foot. the HP numbers you have from the dyno should be good for about an 11.90-12.00. dam respectable for a street car.

 

No, I just stomped the gas pedal. I will try that next time, though. I want an 11.999 timeslip!!!

 

Better than a 1.80 60’ on radials I would call pretty darn good. Mid 12s as you drove it to the strip better yet.
The trap speed seems a bit low for the power, but the car seems to be working well and obviously flat books. Nicely done!

 

I'm hoping the low trap MPH was because I went through the traps in 4th gear, which is overdrive. In other words, I wasn't screaming the engine to anywhere near its peak power.

 

I think I may have found the down track repeating blinking issue with my Sniper shift light. It has a feature called Launch RPM. When setting up the shift light, I skipped over that feature in the menu because I didn't need it. Well, it comes with that feature enabled, and it is defaulted at 3,000 rpm. I should have disabled it, which I have now done.

 

That be for the best that it’s trapping low; I know Bristol is pretty lax when it’s not an NHRA event, but I’d guess going 120 or so (which seems plausible given your hp) would get the wrong kind of attention pretty quick!

 

that would account for a couple mph but nothing dramatic. car should be 114-116 mph.

 

So, where did the rest of my HP go? I'm not going to worry about it. I'll withhold judgement until I can make several perfectly shifted, clean passes on a nice cool day.

Just for the hell of it, I'm going to check the line pressure in my 4L80e.

 

Stall it up and launch it. It all starts with the first 60feet. Also shifting it closer to on time will help

 

Sounds like you had a good time! I'd be curious to see how it does if you just put it in drive and go.

 

You are certainly down on power compared to your dyno. It should be trapping more than that.

 

Fear not. By hook or by crook, I will get my car to crack into the 11's.