Well they were not done the same day so the test is not a TRUE comparison, but i am a little taken back at the lack of power the Pro3 cams produced. The tuner 3's carried the power further in the band than the Pro3's. I think I will try another header and update again, as the one used is a Hytech replica small tube.

Pro3 graphs, before and after tuning.



Skunk2 stage 3 cams

 

[QUOTE=Teamdiesel;42261294]Well they were not done the same day so the test is not a TRUE comparison, but i am a little taken back at the lack of power the Pro3 cams produced. The tuner 3's carried the power further in the band than the Pro3's. I think I will try another header and update again, as the one used is a Hytech replica small tube.
QUOTE]

What's the build again?
So only difference was cam swap?

 

that engine is dying for a better tune. Also were the Pro 3 degreed in? What were the cam gear settings?

 

I don't think it is dying for a better tune. It could be better but the tune is ok. The a/f graph is almost a straight 12.9 across and the cam gears were set where they made most power at E+5 I+1. I suspect that the header is the culprit as the S2S3 was done with a big tube and the Pro3 with a small tube.

 

Always been a fan of the old skunk2 tuner series cams

 

x2 but of course according to the " experts " of honda tech i dont know anything so i guess my opinion dont count i will always choose tuner cams over pro series cams again to al lthe "experts" out there this is my opinion weither i say my reasoning in the right way or if my reasoning makes sense or not its my opinion

 

That is interesting. .

There has to be something holding up the air movement.

If the motor itself is big enough to support the Pro3 then there should be no reason the tuner 3s make more power or even carry it longer.

I dont remember your build but from what I do remember I believe the motor itself should be able to use the pro3 effectively.

I would def try the header as you stated.

Did you try getting to different A/F ratios at all? Bigger cam might like it differently

 

suspect?

smaller primaries shifts the peak torque to a lower rpm, explaining excactly what you stated happened.

what do you expect?
really think a smal tube header would not hinder a 240-250whp setup in the upper rpms

 

This is your difference right here.

Pro3's aren't going to carry the power THAT high in to the RPM range. They're meant to create a FAT powerband between idle and 9000. The low-cam torque should be much much higher on the Pro3's than the Tuner3's, regardless of the header.

Can you overlay the runs? See if the dyno shop can email you the run files and you can download the viewer from dynojet's website.

What were your final timing values? The Pro3's on my setup take 28* timing at 3500 RPM and 32* at peak torque. Did you add timing until it stopped making power?

 

Seriously, I seen small tube header and almost $hit myself, why would anyone install a header designed for 1.8-mild 2.0 builds on a wild 2.0+ build?

 

That was the only header available to me at the time as my big tube was dented badly.

 

Peak timing was set at 30.25* but increasing timing made little to no difference. The low end on the Pro3's had torque little above 150 and the a/f was quite good at those rpms, so I doubt it can get any better with that header.

 

this is a worthless comparison.

 

x2343242348092423894724894728942442827483247328944 78

 

as I said its not a TRUE comparison but something to look at all the same.

 

It offers good discusion points.

Better than a majority of the threads like "how much power will XXXX setup make" or "is XX:1 too much compression for pumpgas?"

If you can get the run files from the dyno shop, i would like to play with them a bit.

 

I will see as his laptop seems to be having issues.

 

so what's the engine consist of looks like a 2.2 liter from the torque

 

im pretty sure its an 85x92 motor iirc.

 

85.5x92mm Gsr
Darton MID sleeves
Wiseco 13.5:1 pistons
Crower light weight rods
Crower crank
ATI damper
550cc RC injectors
255 lph Walbro pump
Skunk Pro gears
Skunk Pro3 cams
Supertech FULL valvetrain
Edelbrock VictorX
68mm TB
3 inch custom intake through password JDM EK headlight scoop
Hytech header
Skunk megapower exhaust
Hondata S300

 

With that build, the big tube header should gain the 8 hp and 5 ft tq lost and carry power higher

 

Now that you've given your opinion, keep an eye on this post and learn something. Based on the opinion you already gave, you've missed some obvious problems with the test and results shown. After a header swap and some more fine tuning, you may have a change of heart.

 

I am going to try a custom Bisi header next to see if there are any gains to be had from a custom tailored unit.

 

funny how everyone thinks i am crazy for running tuner 3's in my 86mm x 95mm build -- lol

i think i will stick with them

a quote from an engine builder that i spoke with that has been around building B series engines for longer than most people have been members here -- " the pro3's will give you 5 or so more whp but will prematurely wear your valvetrain components, you are better off with the tuner 3s "

 

And what was his reasoning behind that?