LS1TECH - Camaro and Firebird Forum Discussion

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-   -   opinions on dumps right off the LT's (https://ls1tech.com/forums/generation-iii-external-engine/1470976-opinions-dumps-right-off-lts.html)

Dave_the_SS Sep 27, 2011 10:10 AM

opinions on dumps right off the LT's
 
ok so ive considered running a bullet off each LT and having the dumps kicked out to the sides. maybe add a litttle pipe off the headers then put the bullets on. or a true dual setup... but i like cheap and effective lol

right now i run a Y into a single dumped bullet. But imo the car is to damn quite and i really dont like it. i do daily the car.

would i lose power or tq in swapping over to the dumped long tubes?
there is a cammed lq9 going into the car

heres how it sounds with the current setup
http://imageshack.us/clip/my-videos/651/ux6.mp4/

thunderstruck507 Sep 27, 2011 10:43 AM

It will be retarded loud. Other than that it should work great.

Oh and you will likely stink like exhaust and gas every time you drive it.

Dave_the_SS Sep 27, 2011 11:00 AM


Originally Posted by thunderstruck507 (Post 15439915)
It will be retarded loud. Other than that it should work great.

Oh and you will likely stink like exhaust and gas every time you drive it.

lol i figure itd be pretty loud. i had to run an open header for a few days until i got my current setup welded on

omarrakeen Sep 27, 2011 12:19 PM

daily drive almost open headers? that is deff not the smartest thing to do lol

Dave_the_SS Sep 27, 2011 12:27 PM


Originally Posted by omarrakeen (Post 15440265)
daily drive almost open headers? that is deff not the smartest thing to do lol

well thanks for the input with no logic behind what you're..

Rise of the Phoenix Sep 27, 2011 12:34 PM

Will it work - Yes

Will it be loud - Yes

Will it smell of gas fumes all the time - Yes

Is it optimal - No

I'd suggest running either an X or H pipe setup with dumps. I've got the TSP True Dual system with bullet mufflers dumped. It's loud, but not near as loud as open headers. You really need some type of crossover pipe to help with scavenging.

omarrakeen Sep 27, 2011 12:41 PM


Originally Posted by Dave_the_SS (Post 15440291)
well thanks for the input with no logic behind what you're..

dumped with bullet is way too quieter than running open headers. it will drone VERY bad at all rpms. not sure how you gonna tolerate daily driving that, there's no reason it shouldnt work if thats what your asking. on the other hand having a custom H or X pipe dumped before the axle will be the best way to go and shouldnt cost you much either.

95maroz28 Sep 27, 2011 12:50 PM

i dd open headers for about a month and now have about 18" off each header. i doubt youd lose any power

Dave_the_SS Sep 27, 2011 12:54 PM


Originally Posted by 95maroz28 (Post 15440385)
i dd open headers for about a month and now have about 18" off each header. i doubt youd lose any power

you think you could get a sound clip? what muffler are u running?

95maroz28 Sep 27, 2011 01:16 PM

no muffler lol its only temp tho

Whiteaw57 Sep 27, 2011 01:21 PM

I would try to go with 3inch all the way back and an X or H then dump it right before the tire. Just get it out the side so you don't smell terrible having the fumes come up under the car. You can also oval the tube for ground clearance.

Then with the cammed LQ itll sound like my other car
http://www.youtube.com/watch?v=6tukxIxFKU4

Dave_the_SS Sep 27, 2011 01:40 PM

Love the way that sounds whiteaw.... So no mufflers? Just 3" in to an x and dump it before the rear tire.

Whiteaw57 Sep 27, 2011 01:43 PM

Ive worked for a few nascar teams so thats hooker supercomp headers into 18 inch mids and 3.5 inch sidepipes off a Cup car. the sidepipes have a built in X

AutomagicLS1 Sep 27, 2011 01:52 PM

When I first put headers on my car a few years ago I stuck 2 dynomax bullets off the collectors. Don't do it. It sounds like total shit, its extremely loud and obnoxious. I wish I never did it

Whiteaw57 Sep 27, 2011 02:25 PM

I would say put maybe a race muffler or something after the header. nothing restrictive just something to break it up.

Dave_the_SS Sep 27, 2011 02:34 PM


Originally Posted by Whiteaw57 (Post 15440721)
I would say put maybe a race muffler or something after the header. nothing restrictive just something to break it up.

i think thats what i'll do... just put 2 bullets into an x then have it angled and dumped to the sides

Whiteaw57 Sep 27, 2011 03:05 PM

sounds like a good plan. thats what im doing to the car in the vid so it has a "muffler"

01z Sep 27, 2011 03:19 PM

buy earplugs, its ok for a short trip but gets annoying quick

Whiteaw57 Sep 27, 2011 03:22 PM

I have the best of both worlds with DD Z28. A cutout is a nice trick. At the end of the day though 90% of the time its open. and honestly when I do close it its either because im in one of those crappy dont feel like driving moods and I still get pissed off because its still a cammed six speed with rear gear whine. The cutout helps drown out all of the other noises it makes lol

99Bluz28 Sep 27, 2011 05:49 PM

If you still have O2 sensors on your headers you'll need to go at least 10x the collector diameter from the O2 sensors before dumping it , otherwise you run the chance of running rich.


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