Dyno Proven Ecu & Intake Comparison


It can happen on turbo cars running big boost because but NA cars would not have the same suction as a turbo , especially on a quality part like samco etc
 
Very interesting, I always thought that there is pressure on the intake runner not a vacuum under boost. Forced induction seems the wrong term to use, yes?
 
^ you would think that. I did until it was explained properly. Can't quite recal what the score was but it made sense
 
Think term 'forced induction' used to decried the air going into the inlet rather than the compressor on the turbo itself.
 
tama666 said:
For reference. Samco intake runner with OEM box, K&N filter.
OEM JDM ITR ECU [acronyms lol] Ill be switching to Hondata S300 soon.
Im running the Samco intake on both this car and the track car.
Cold air is key of course, no matter the kit used.

dsc0342qs.jpg


Track car: IceBox/K&N cone filter with Samco intake runner
ECM: AEM Series 2, 218whp
intakerunner.jpg
Click to expand...

My friend had the same set up on his high compression built b18 integra type r and on the dyno When the engine was under big load/acceleration the samco intake pipe would tend to suck in when accelerating causing flat spots in the dyno graph and the feel in the car when the Samco intake Pipe would collapse together it felt like the car was being starved of air .
 
^ surprising. So this could happen with the stock intake pipe work?
 
Very surprising to me...I will look into this more and report back.
 
jesse888 said:
^ surprising. So this could happen with the stock intake pipe work?
Click to expand...

I cant say yes or no on that as i have not tested it but i thing the standard rubber intake pipe is a little stronger than the samco hoses as it doesnt press together as easy when holding both in your hands , the samco is really on for engine dress up really in my eyes , For me id briefer the 3 inch stainless steel arm , Fully heat wrapped and thermal wrapped and Because its a steel arm it gives your vtec cross over a bit more of a Nice Louder Echo . But thats just me and my experience , everyone sets there cars up differently
 
Just got off the phone with the tuner, my setup at 218whp is too low to experience this issue. He laughed at the idea of this happening and actually referenced the OEM being the same or worse than the samco setup. He has never experienced issues on the dyno with the samco collapsing.
 
...HT.com copy...

You will see the highest vacuum during engine braking and idle, which is where you would see collapsing of the intake arm if it is possible. At full throttle/high RPM the intake pressures are at or about atmospheric pressure.

However, the intake arm is almost always at atmospheric pressure since it is not throttled.

But just to hush any concerns, the Samco arms (and other silicon tubes), are typically reinforced which prevent collapsing.

attachment.php
 
Last edited:
turn it up said:
Has happened alright.
Think vtec6000 seen it with a car on the dyno.
Or some one said to me about a car on a dyno anyways
Click to expand...

Probably was me. Happened on a b18c I was mapping before but it was a Tegiwa intake pipe not Samco! It didn't crush in all the way but you could see it collapsing a little during a dyno run.
 
Vtec6000 said:
Probably was me. Happened on a b18c I was mapping before but it was a Tegiwa intake pipe not Samco! It didn't crush in all the way but you could see it collapsing a little during a dyno run.
Click to expand...

Yes Was you who mapped the car and ran it on the dyno , I Know the chap who owned the car , Was talking to him and he told me about this issue as i was thinking of putting same set up onto my ek9 but then decided not to , but i was also thinking as above post said by another member that mabye due to the high compression and build that could have been the cause and mabye engines running lower power wouldnt have this prob ???
 
Sorry yes It was a tegiwa Hose Not the samco , Here is Picture Of Set-Up and the Hose (Not Very Close Picture)
 

Attachments

  • $engine.jpg
    $engine.jpg
    148.5 KB · Views: 689
I looked at the Samco hoses last night on the intake, I am guessing that I was applying about 10lbs or more of pressure to get it to deform, its very stiff, way more than the OEM could ever handle.

If Tegiwa was deforming its on them, not Samco. Ive read on a few post about tegwia not being up to par with the competitors products, they must not do as much R&D or QC as they should maybe? Not sure.
 
Last edited:
tama666, do you know ID size and OD size of samco intake pipe? maybe its good option to Mugen intake
 
I will get measurements.
But these were manufactured for the Mugen intake for King Motorsports in Wisconsin USA.
Direct replacement for the ITR Mugen intake tube.
 
Last edited:
Small end ID: 2.764"
Small end OD: 3.156"
Large end ID: 3.250"
Large end OD: 3.705"

This is a tad smaller than the comptech aluminum intake tube...but will attach up to it--snug fit.

Note: see metal wire on the tube top left of pic.
intakesamcoinfo.jpg

intakesamcoinfo2.jpg
 
Last edited:
The runner itself plays a very small part in the equation as long as all that are being compared are the same ID size. Well unless its made by tegwia lol.
 
Good testing. I would be keen to see Blox Velocity Stack with Filter with a custom heatshield + Neptune dyno tuned.

This should get you the highest gains.
 
You must log in or register to reply here.
Back
Top