Project 99 Ss
also ould it be made in any other fitnished/materials PS - hold the impertainent remarks...i'm trying to learn something.
Dave
[URL=http://imageshack.us]

I need a dual bottle bracket for my T/A. I'll call you tomorrow, also I'll send my t/body tomorrow so you can fab me the micro switch bracket.
Last edited by ls1CANTU; Oct 17, 2005 at 09:24 PM.
The Best V8 Stories One Small Block at Time
PS - hold the impertainent remarks...i'm trying to learn something.

Plenum 1. Space considered as fully occupied by matter: opposed to vacuum. 2. An enclosed body of gas under greater pressure than the pressure outside. From "The Reader's Digest Great Encyclopedic Dictionary".
This is the area right underneath the carburator on Dave's manifold. The mix, a/f, is distributated to each clyinder through it's respective runner. On this design the plenum is above the runners. No puddling problems, and distribution is much better compared to the lsx platform, because of a more central distribution location (lsx comes in front).
Because of hoodlines, GM engineers had to design a manifold to fit under low hoods. This resulted in a plenum underneath the runners, and the runners are overly long. Air goes down, up and over, you can picture the air flow like the catch can on your compressor. It was also designed to flow air only and not a mix of air/fuel. Because of this design, puddling can take place. Gm has put out bullitens on h2o puddling, fuel can/does the same. Now when having a nitrous back fire on the lsx manifold it really has no where to go easly and trys to find the path of least resistance, thus the plastic manifold exploding. If puddling has occurred this is fuel for the fire/explosion as liquid gas will not burn untill it becomes vapor. Actually this manifold works very well for what they were desined for, dry intake.
I am sure I missed some points but this is the jist of it. I think Dave is on the right track with this set-up.
Robert
Dave
Dave
Now, get the new noids on there and snap some pics, although it looks good now, it will look way better later.
Now, get the new noids on there and snap some pics, although it looks good now, it will look way better later.

Dave
Plenum 1. Space considered as fully occupied by matter: opposed to vacuum. 2. An enclosed body of gas under greater pressure than the pressure outside. From "The Reader's Digest Great Encyclopedic Dictionary".
This is the area right underneath the carburator on Dave's manifold. The mix, a/f, is distributated to each clyinder through it's respective runner. On this design the plenum is above the runners. No puddling problems, and distribution is much better compared to the lsx platform, because of a more central distribution location (lsx comes in front).
Because of hoodlines, GM engineers had to design a manifold to fit under low hoods. This resulted in a plenum underneath the runners, and the runners are overly long. Air goes down, up and over, you can picture the air flow like the catch can on your compressor. It was also designed to flow air only and not a mix of air/fuel. Because of this design, puddling can take place. Gm has put out bullitens on h2o puddling, fuel can/does the same. Now when having a nitrous back fire on the lsx manifold it really has no where to go easly and trys to find the path of least resistance, thus the plastic manifold exploding. If puddling has occurred this is fuel for the fire/explosion as liquid gas will not burn untill it becomes vapor. Actually this manifold works very well for what they were desined for, dry intake.
I am sure I missed some points but this is the jist of it. I think Dave is on the right track with this set-up.
Robert
Dave
This is what can happen without puddling on a wet hit (won't happen on dry period)?
A lot of speculation on what caused this, however, the fact remains it does/can happen. Whether it was, user error or product failure?
Nitrous Gone Bad
Robert
Robert- For the sake of argument let's say that puddling "can" occur in the LSx style manifold, and that it "can" cause backfires (I don't follow this line of thinking but that's not the point). I am curious what your thoughts are on the cause of nitrous backfires on carb style intakes such as the one on Dave's car if puddling is not an issue in that style of intake? Again, I am not trying to beat the dead horse but I do think that Robert has a lot of knowledge and experience with nitrous systems and I just wondering what his thoughts are on this question.
Dave- The parts look great, keep them coming. And it looks like I'll be going to San Antonio, wanting to ride the bike down but that'll depend on the weather.
I am glad that we will soon have an alternative to the lsx style manifold. How would a dual plane manifold work for this? Maybe not as good as an single plane type considering higher RPM use? I ask because generally they have a lower profile.
NX Jeremy, I took my bike out for a long cruise yesterday, man was that a blast. I get more people yelling cool and thumbs up on my bike compared to the vette? When are you going to get your pics post on the n2o install?
Robert





