Back to back testing -- Results

[jlibert]

All runs done back to back on Brown's Diesel Dynojet 248. All runs started at 10psi boost at 62-63 mph. (the run with the header was started with a little more mph because we couldn't make 10psi boost at 62mph). We didn't have an optical tach pick up, so we plotted the points using the tach in the vehicle.

I posted the results of the header/stock manifold in another thread, but I thought it might be more useful if I post all of the testing in one thread.

I didn't have access to the original file to allow me to digitally overlap the runs onto each other, so I did it by hand. (you'll have to trust that I plotted the points accurately --)

don't pay attention to the very edge of the graph. Sometimes I let off earlier than other times (wasn't making any power there anyway)

-------------------------------------------------------------------------
Silver bullet, stock CP3, flux 2, TNTR, MP8 @ 50%
vs.
Silver bullet, I.I. 85% CP3, flux 2, TNTR, MP8 @ 50%

Stock pump with silver bullet
vs.
II. pump with silver bullet, flux 2, TNTR, MP8 @ 50%
vs.
II. pump with A5K, flux 2, TNTR, MP8 @ 50%

(you guys still think the A5K is laggy compared to the silver bullet?:bang)

II. pump, A5K, stock exhaust manifold,flux 2, TNTR, MP8 @ 50%
vs.
II. pump, A5k,tubular header style exhaust manifold,flux 2, TNTR, MP8 @ 50%

The three similar graphs are with the stock manifold, the unique graph is with the header.

here is the individual run that I overlapped onto the chart above.(so you guys can double check my work.)
silver bullet, II 85% pump, flux 2, TNTR, mp8 @ 50%

 

[Scooter's Roofing]

any EGT difference between the cast manifold an II's header?

 

[inline6power]

nice jp, its nice to see people really try to help others with the info you have posted. wish i was there for the other runs you did and not just the begeinning ones. its almost sushi time again bud.

 

[NickTF]

My money would be on the header running cooler EGTs. Thanks man, just like I said in the other thread, this is a big help!

 

[cquestad]

A5k's rock for singles...

No one believed Justin Williams and I way back in 2004 when we had the first couple. They make 100 more hp than a S-300 base.

I kinda miss mine sometimes...it hit like a two stroke.

 

[jlibert]

any EGT difference between the cast manifold an II's header?

It's really hard to test EGT's with complete accuracy, but I didn't see any difference.

 

[Howling]

Now you need to try dual cp3's for the test:rockwoot:

Thanks again for trying out all the combos to see what works the best.:thankyou2:

Eric

 

[jlibert]

A5k's rock for singles...

No one believed Justin Williams and I way back in 2004 when we had the first couple. They make 100 more hp than a S-300 base.

I kinda miss mine sometimes...it hit like a two stroke.

I only saw a 20hp increase. However, theres a lot of room for more injector.

nice jp, its nice to see people really try to help others with the info you have posted. wish i was there for the other runs you did and not just the begeinning ones. its almost sushi time again bud.

Brown's helps me out a lot, it's the least I can do to try and help other guys out. I'm thinking thursday for Sushi. let me know.

Now you need to try dual cp3's for the test:rockwoot:

Thanks again for trying out all the combos to see what works the best.:thankyou2:

Eric

Hmmm, I was just talking to Erick at Brown's about this last night. If I do install duals, you can bet I'll post the dyno graphs up showing the results. I've vowed not to add any components to my truck without before/after dyno testing.

-J.P.

 

[cquestad]

Look at the lower RPM's...you made over 100 hp over the bullet.

 

[jlibert]

Look at the lower RPM's...you made over 100 hp over the bullet.

Agreed.

People usually tend to compare peak to peak numbers. Here, a peak to peak comparison wouldn't tell the whole story.

It's frustrating to read people giving advice on turbos, without having ever actually tested or even used the turbos. I've read countless posts describing the A5K as laggy, slow to spool, etc compared to a 66mm turbo. People really don't believe you when you tell them otherwise.

-J.P.

 

[cquestad]

The area under the curve is what counts brother...except dyno queens.

1/4 mile or sledpull is all about the area.

 

[Joesixpack]

Can't say I'm impressed with the header......

 

[jlibert]

Can't say I'm impressed with the header......

It was a prototype. The builder is playing with some smaller tubing now. The whole point was to test it and see what it would do. If I get the chance to test their new design, I'll post the results. The header might be decent for a dedicated puller.

 

[Joesixpack]

It was a prototype. The builder is playing with some smaller tubing now. The whole point was to test it and see what it would do. If I get the chance to test their new design, I'll post the results. The header might be decent for a dedicated puller.

Thanks for sharing the dyno results, helps us all out.......(That sure is a sweet bulge the 5K added along with II's pump). Pretty hard to beat a pulse type manifold on the bottom, but if there was more on top, a guy might live with it.....I see a big part of the "fun zone" missing...

I remember that manifold now, its not II's header style but a member's on here right?
I remember the one thing I didn't like when I first saw it (if it's the one I think it is) is that it was a open center, and not divided for a dual volute turbine housing, (even more benifit from a pulse type gone, and would hurt spool)

 

[Joesixpack]

I'm starting to think I want a A5k on top....

 

[jlibert]

Thanks for sharing the dyno results, helps us all out.......(That sure is a sweet bulge the 5K added along with II's pump). Pretty hard to beat a pulse type manifold on the bottom, but if there was more on top, a guy might live with it.....I see a big part of the "fun zone" missing...

I remember that manifold now, its not II's header style but a member's on here right?
I remember the one thing I didn't like when I first saw it (if it's the one I think it is) is that it was a open center, and not divided for a dual volute turbine housing, (even more benifit from a pulse type gone, and would hurt spool)

You're correct. The builder was cool to deal with, and had a really humble attitude about it. If it works it works, and if it doesn't, that was fine too. He wanted to actually verify that his product worked before he sold them to everyone. I've had it on my truck the last few months, and have put a few thousand miles on it without any issues. I have it for sale, it would probably be benificial for a high hp puller.

 

[jlibert]

ttt for chris at e.d. ......

Here's another sheet. Same truck, same programming. Source Automotive 64/S480, Flux 4, dual stock pumps -- 805hp

805hp = twins, twin pumps, flux 4.
677 = A5k, flux 2.4s
687 = A5k w/ header + 2.4's
655 = silver bullet w/ 2.4's
don't pay attention to the very edge of the graph -- didn't take it to 4k every time.

 

[WUnderwood]

:clap: very nice writeup!

 

[carfichris]

If I am reading it right that header killed your curve down low. The difference@82-83mph looks like 150hp laying a scale on the computer screen. If these are all on file I would love to see the new curve, granted there are a few changes from those runs.

 

[jlibert]

If I am reading it right that header killed your curve down low. The difference@82-83mph looks like 150hp laying a scale on the computer screen. If these are all on file I would love to see the new curve, granted there are a few changes from those runs.

yep, the header killed power, but moved it out where I could use it for sled pulling -- almost 100 hp at the other end.

You can bet I'll add the new setup to this thread.

I like the fact that the programming has always remained the same throughout the testing. I'd like to run the 04.5 programming I currently have loaded, and then compare it against some 03-04 programming back to back on the dyno. (hint hint bob. )