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Posted (edited)

So i went to the track last friday and it was real nice. Street racing fridays at Napierville Dragway! I ran against a Ram Diesel turbo with gear (3.73) and a tune and it was real close, but he won by a .463. I also ran against a HD1500 with a Radix. He wasn't that fast, but he beat me...by .423. Anyways I have to change that exhaust because it has some POS press bends and it's slower than my stock muffler! I finally made my mind with a Magnaflow 15840 and I am also waiting for a Yank TT 3000. The only win i had was against an older mustang...

 

You think I sould be better?

 

Here is my time slip :

post-8328-1177630346_thumb.jpg

Edited by Simon (see edit history)
Posted
I dont think thats bad would be better if reaction time was quicker. With all wheel drive I would think you could really hit it off the line even with a factory stall. But all in all I think those times are pretty good but I do believe with cam and all low 14's is where that truck should be right now. BUT like I said get that reaction time to something like .186 ish and you are in the low 14's. :thumbs:

Reaction time has ABSOLUTELY nothing to do with ET!!!!!!!!! The timers don't start until you move, trust me! You could sit there at the line all day and your time at the end of the track would be exactly the same as if you had a perfect .000 light. As far as the times go, something is wrong...I may have some more mods technically but you have a cam and I have run a best of 13.98. Maybe something in your tune? :dunno:

Posted
Reaction time has ABSOLUTELY nothing to do with ET!!!!!!!!! The timers don't start until you move, trust me! You could sit there at the line all day and your time at the end of the track would be exactly the same as if you had a perfect .000 light. As far as the times go, something is wrong...I may have some more mods technically but you have a cam and I have run a best of 13.98. Maybe something in your tune? :dunno:

I think the same. Your tune has to be off. Do you have a scan gauge? Are you getting KR. If you are, the pcm will pull a set amount of timing which could be causing you to lose more power then you think. How aggressive is Nelson w/ timing and A/F ratios? Your A/F should be somewhere around 12.8-12.9. I think your truck will easily hit high 13's w/ those mods.

Posted
Reaction time has ABSOLUTELY nothing to do with ET!!!!!!!!! The timers don't start until you move, trust me! You could sit there at the line all day and your time at the end of the track would be exactly the same as if you had a perfect .000 light. As far as the times go, something is wrong...I may have some more mods technically but you have a cam and I have run a best of 13.98. Maybe something in your tune? :dunno:

 

shows how much i know about drag racing. :banghead: Thanks for the quick lesson.

Posted
shows how much i know about drag racing. :banghead: Thanks for the quick lesson.

Anytime! I've been doing it for a while so if you ever have questions, feel free to ask! :cheers:

Posted (edited)

You know what kills me, it's the exhaust. When my exhaust was fabbed, I was going slower than stock. so you can imagine what this does with a cam like that and a stall too small. Nelson recommended I run a 3000 stall.

I know i should be running a lot faster.

Just to give you an example, the last time I went to the track completely stock, except for the restrictive flowmaster exhaust, i ran about 16.5 real bad...

I don't think my tune is off though. I think it's a flow problem. Imagine a more restrictive exhaust than stock... :shakehead:

Nelson dynoed a LQ9 on the bench and it was putting +100hp at the flywheel over stock with that cam and tune. I'll see as soon as i change exhaust.

 

JF-03 : I was kinda shocked when I saw your sig with those mods and that time... :wtf:

Edited by Simon (see edit history)
Posted (edited)

You have to zoom in with your browser, make the page full size then double click on the time slip and then you will see the zooming option at the bottom right of the page.

 

Anyways,

 

[email protected]

2.11 60'

.663 reaction

Edited by Simon (see edit history)
Posted
You know what kills me, it's the exhaust. When my exhaust was fabbed, I was going slower than stock. so you can imagine what this does with a cam like that and a stall too small. Nelson recommended I run a 3000 stall.

I know i should be running a lot faster.

Just to give you an example, the last time I went to the track completely stock, except for the restrictive flowmaster exhaust, i ran about 16.5 real bad...

I don't think my tune is off though. I think it's a flow problem. Imagine a more restrictive exhaust than stock... :shakehead:

Nelson dynoed a LQ9 on the bench and it was putting +100hp at the flywheel over stock with that cam and tune. I'll see as soon as i change exhaust.

 

JF-03 : I was kinda shocked when I saw your sig with those mods and that time... :wtf:

Nelson is right...a cam and and the right stall go hand-in-hand. Your stall is a bit low for that cam and you would really see some gains with a 3000-3200. About the exhaust, could you have a clog somewhere in it? Maybe in the cats? Get er all fixed up and report back with some new time! :thumbs: In the meantime, 14's from an AWD 5000 pound truck is nothing to be ashamed of!

Posted

A clog somewhere is also possible I remember feeling something weird in the sound after a couple of hard accelerations. My exhaust is supposed to arrive pretty soon I've been waiting 2 weeks now...

Yeah i've been wanting to record my setup and post it here. I guess i'll do it since I now have an official demand. It will be nice on your 68' it's a nice choppy idle. It turns head. Somettimes it sound a bit weird with the two pipes side by side but with a pipe on each side it will be different. It's real choppy.

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