Slick68

iTrader: (7)

This is the only video the wife was able to get, though. This was a Zmax dragway in Concord, NC while on Power Tour. These were only fun runs. I'm mainly posting this to see if I can get you guys to tell me how/what to tune next. The engine/trans make great low end power, but seems to fizzle out at higher rpms. I'm thinking the fuel system isn't keeping up and/or I need a single plane intake.

You can't tell much by this video, but I spun ALOT out of the hole(hard tires) through first, shifting into second too early, also spinning most of the way through second before finally gaining traction. I was right at red line in third gear through the traps. This was probably the best run out of four and I ran a 14.15 at 97.98. If I could hook, I know mid 13's are possible. Does this sound right?

http://www.youtube.com/watch?v=iuRu3...ature=youtu.be

My setup:
02 LS1-stock 241 heads.
232/240 .580/.580 110+2 cam
Edelbrock Performer RPM intake
Holley 750 Street HP
shorty headers-2.5" exh/x-pipe-Magnaflows
700R4 trans/2800 stall
4.11 gears/Eaton LSD
Running crappy 93 pump gas(E10)
almost 3900lbs with my lard butt in the seat.

Doug G

Sounds very possible

Nice run anyway.

wildcamaro

iTrader: (15)

Yea nice run...no idea on the tuning though sorry, I'm trying to figure out a carb set up myself..

3pedals

iTrader: (3)

What are you using for a fuel pump, filter, and fuel lines?
Also, everything in your combo seems geared towards low end and midrange torque, EXCEPT the cam. I think it is to big for the combo.

Bowtie316

iTrader: (1)

You said red line in third gear but what was the actual rpm? I would think your combination wouldn't have any problem pulling strong through about 6500.

MPH is on track for mid to high 13s.

wildcamaro

iTrader: (15)

Yea that is a whopper cam, I overlooked that when I read the OP...that cam would be pretty big for even a 6.0...

Nicksilverado

iTrader: (1)

That converter is hurting you big time. A bigger converter,slicks to hook and that's a high 12 second pass. I've seen 4400 lb extended cab 6.0 cam only run 12.98.

3pedals

iTrader: (3)

I agree, but the next move to improve it depends on what you want out of the car

newschool72

iTrader: (12)

You really think the converter is that far off? 4.10 gears and a 700 trans w a 3.06 first gear. Sticky tires will make a huge difference even with a 2800 stall, IMO.
A cam more suited for strong torque would be a big help, I think. Just looking at OPs specs, that is the miss match in the combo. A milder cam will make for better street manners and get more in line with the converter, too. I guess it really all comes down to what you want the truck for. If its a cruiser, go with a shorter cam and maybe even throw taller gears under it. with the 3.06 first gear ,it will still haul off the line.
OR, go with a higher stall, maybe do some work to the heads and go drag racing.

Slick68

iTrader: (7)

Thanks for all the advice. I was kinda worried about the cam, but I replaced an MS3 with this cam, so it's much milder, but with a tighter lobe separation better suited for a carb setup(supposedly). This cam actually came out of Brian@KYTP's engine. He had better pistons and TFS heads and made 461RWHP through a locked 60E. It was also EFI.

As for what I want from the truck, I mainly just cruise it around with an occasional auto-x event. The cam actually behaves quite well on the street, and is very tame until I give it the beans.

As for my fuel system setup, this is currently what I have:
-Carter fuel pump like this-->http://www.jegs.com/i/Carter/180/P4594/10002/-1
-standard parts store filter in front of the pump.
-fuel lines are 3/8" steel line , then about 3ft of -6AN to the carb.

Red line for rpm is around 6300-6500. I don't have a tach on it, so I don't know for sure.

Slick68

iTrader: (7)

Also, here's a vid of my truck on an autocross course. You can hear the engine cutting out at the last section. This was at full throttle with the engine spinning somewhere above 6000 rpm or so. Is this cutting out a fuel starvation issue?

Bowtie316

iTrader: (1)

Sounds more like valve float to me, what valve springs are you running.

Fuel starvation will usually cut completely out for a split second then hit again.

Weak springs will cause a weak top end. My old 355 with vortec heads and stock springs would drop a cylinder around 5900, more would drop after 6000. I always shifted at 5800 lol.

Slick68

iTrader: (7)

Not sure exactly which springs I have but they're dual springs matched to the MS3 I pulled out of the engine.

snook

iTrader: (1)

Just sounds like the rev limiter to me? On a side note, only live a couple hours away from you in Athens tn Usually head up for the rod runs every year, my inlaws have a cabin in wears valley.

JRracing

iTrader: (35)

I love that truck. My father has a 68 step side we started on but it is sitting still at the moment.

toxic99

With that cam, hell yes it's way off, for dragstrip purposes anyways . Anything smaller then a 3000 is a insult to a LS1 lol. Yes stickies would make a big diff too in current form.