ANYONE have good results from the Steed Speed Manifolds yet?

[mike@haller's]

It ain't getting more closed than 95%. On tightly smoke controlled trucks, this can be a double edged sword because if the truck isn't making boost, it won't get the fuel either.... but that isn't the main issue. It could simply be that the volume is wrong under the turbo and until the turbo lights the manifolds won't shine. Once the turbos do light, i'd imagine there would be a pretty good "under the curve" power difference until the chargers become the restriction again.

I don't think you understand what I'm saying. A stock vgt commanded bp file only holds the vanes at 95% for a very short time then rapidly dumps to 7% and drops velocity. This is a stock file.



What I'm saying is hold the vanes tighter for longer to keep velocity higher. To improve spoolup on the bottom end.Like this.



The only thing is you must have your gating set correctly to utilize this.

 

[jdgleason]

Just for reference, here's another picture of the graph.

Hey guys. Here's Mike's graph:

 

[Dzchey21]

If your feeling up to it go ahead but i think there is too much info mixed with bull crap that it wont do much good to edit, unfortunatly some people arent just taking the info for what its worth and leaving the rest (as they should)

everyone has something they can learn from someone else, take what you can, leave the rest... should simplify things, but it wont

 

[BFT]

I just cleaned this up a bit. Lets keep it on track

 

[Jhaddox]

If your feeling up to it go ahead but i think there is too much info mixed with bull crap that it wont do much good to edit, unfortunatly some people arent just taking the info for what its worth and leaving the rest (as they should)

everyone has something they can learn from someone else, take what you can, leave the rest... should simplify things, but it wont

Beef nachos took out a little bs, but for the most part this is a really informative thread...lets keep it that way guys


Edit: Tree'd

 

[bigrpowr]

Just for reference, here's another picture of the graph.

i like that top line. wish i still had it.

 

[08BIGRIG]

How am I owned ?

Mike I meant that me and the guys got owned by my truck. Lol not u bro.
I look like I got in a fight with a cat. Scratches everywhere.

 

[onebadf150]

Mike I meant that me and the guys got owned by my truck. Lol not u bro.
I look like I got in a fight with a cat. Scratches everywhere.

we appreciate the hard work! thank you for helping us move the power potential forward!

 

[BFT]

Gotta love that fiberglassLOL

 

[08BIGRIG]

we appreciate the hard work! thank you for helping us move the power potential forward!

U bet man. Really happy that we are moving forward right away with these. I think we all want these to SUCCEED.

 

[madman1234509]

Lol I guess my post that made complete sense got deleted. Sorry for pointing out that not one company has valid back to back testing on almost any product... There needs to be more data from every company on all of these hyped up products they produce.

 

[BFT]

It didn't get deleted, it's in AWOL

 

[madman1234509]

Alright, thanks.... Didn't know that's where stuff got moved to

 

[White_monster]

Well this back and forth bickering has to stop. I spent a while going back through other threads regarding these manifolds and found the first thread from Powerstroke Connection. I'll just say read the posts from them carefully. Did you know the test truck had stock turbos, 110 nozzles and no gate? Take it how you like but it sounds like there data wasn't very good.

Here's the link

http://powerstrokearmy.com/forums/showthread.php?t=12762

Read away guys.

 

[08BIGRIG]

Shane is right. On page 7 it says that the truck had 110 hp nozzles in it. The previous page shows pictures of the engine with no gate on. 110 hp nozzles, no gate, and stock turbos.

 

[Dzchey21]

Looks like matt called it back in february...

This is what confused me. Pretty big drop in velocity at 2.5". Spoolup would be worse.

Now look at this, even THEIR own testing shows slower spool up... look at the graph its almost identical to mikes, red graph is after the manifolds

Here are some graphs of our dyno testing yesterday on the Manifolds.

Note the RED graphs are the AFTER manifolds installation.

Our dyno is a Dynojet 248.
This is an INERTIA dynop Not a loaded one.

Typically loaded and street number gains will be considerable higher!

You'll see the first part of the graph were I'm rolling into the throttle to keep it from downshifting or coming out of lock up. The key here is looking at the difference in the graphs a little later on and assuming that difference will carry through the entire RPM range.

I'm working on all the data we captured to decipher the back pressure realtion to boost. The spool up time and EGT differences.

Plans are being made to do the second install and the final version of up pipes and traveling to a load dyno for other number comparison.

To summarize: These manifolds made a SIGNIFICANT difference in every aspect. Power and Torque are up, drivability is better than before. Temps are lower. Truck now has a deeper and smoother tone to the exhaust.

 

[Dzchey21]

aaaaaaaaaaaannnnnnnnnnnnnnnndddddddddddddddddddddd


after reading i remember what a crap shoot that thread turned into as well :doh:

 

[steedspeed]

Looks like matt called it back in february...



Now look at this, even THEIR own testing shows slower spool up... look at the graph its almost identical to mikes, red graph is after the manifolds

What is with this pull then? I thought this was pretty good when I first saw it. Was I mistaken?

http://powerstrokearmy.com/forums/showthread.php?t=13753&highlight=steedspeed

 

[madman1234509]

does that necessarily mean slower spool up? The graph starting later could just be from them rolling into it later in the rpm range. The distance horizontally it takes for the red pull to reach peak hp/tq or even to reach equal hp/tq as the blue pull is less than the blue pull, which to me would indicate a quicker ramp in power, or spool up. I'm no expert in dynoing, but I have graphs of back to back runs with my truck where the 2nd or 3rd pull starts off later, just like the one above

 

[White_monster]

Read the link I posted. They even said it took longer to get the turbos to light with these manifolds. Sounds like slower spool up to me.