Bisimoto H22a Header Dyno

[Ghetto_CB7]

Hello all, my Bisi header is supposed to arrive tomorrow.

So I am starting this as a quick question as to what people would prefer for dyno scenarios

My current setup.
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H22a ~60,000 miles
stock internals
Euro-R intake manifold (Port matched to TB)
PBT 74-68mm tapered TB
Acura RDX injectors
EBAY 2.75" SRI

Kteller 3" stainless manderal bent exhaust
carsound 3" cat
3"X18" straight through resonator
3" Magnaflow oval (not straight through muffler)

Stock JDM h22a Header with 2.5" collector modification.

Tuned by me on Neptune RTP
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The test will be between the Stock JDM header with the 2.5" collector mod Vs the Bisi header.


So the question is header dyno with or without exhaust?

Scenario 1 (With Exhaust)
1) Dyno with current setup and current street tuned map.
2) Install Bisi header
3) Street tune
4) Dyno with bisi header and exhaust

If I decide to do it with the exhaust it will probably take a little longer, and will not be done on the same day.

Scenario 2 (Without Exhaust)
1) Install Bisi header
2) Street tune
3) Go to dyno and remove exhaust
4) Dyno both headers

If I do them without exhaust they will be on the same day, literally a direct before and after, only thing to change will be the header and the map.

The second option will be cheaper for me and is what I am leaning towards, but if others really want it with exhaust.... well lets just say I am persuadable.

EDIT: It was stupid of me not to include a poll for this thread LOL... If the moderators want to that is ok, if not we can just go on a general consensus

[wherm]

scenario 2 doesn't seem like the best way to do it, cause you'd be running the stock header on the bisi header tune. how much would that affect the outcome?

[Ghetto_CB7]

Nopes

I will switch back to the stock header map for the stock header dyno.

Then use the new tune for the Bisi one.

Just a click of the button to switch. Got to love EEPROM

[Velocifero]

I'm interested in this.

[cb7_with_snail]

hey d00d. so i was reading you sig...849 is what they cost no matter what. so im confused about your group but discount...???

[Velocifero]

I voted with. Without the catback is to measure its full power. With the catback is to measure its realistic, everyday power.

[Ghetto_CB7]

Price

The f22 header is 849, the h22 header is more expensive, it is currently not listed on Bisimoto's site.

The idea is to show a change in horsepower, not an expected maximum horsepower.

So the lack of exhaust might skew the results slightly, but I still think it is the best option.


As for the header... It is currently stuck in SaltLake City. I don't know why...

So I might not get it until tomorrow.

[bmxicansd]

interested the dyno comparison..

[steelbluesleepR]

i voted for testing with the exhaust. its a more realistic number, and the header was designed with a full exhaust in mind.

[CB7H22Los]

take pics when it arrives!

[Ghetto_CB7]

Arrival

It will arrive tonight, but the UPS stores will be closed when it gets here, so I am calling to see if there is any way I can get it tonight...

[CB7H22Los]

man i could only imagine how excited you are...i probably wouldnt get no sleep if i was in your shoes..

[cb7_with_snail]

The f22 header is 849, the h22 header is more expensive, it is currently not listed on Bisimoto's site.

The idea is to show a change in horsepower, not an expected maximum horsepower.

So the lack of exhaust might skew the results slightly, but I still think it is the best option.


As for the header... It is currently stuck in SaltLake City. I don't know why...

So I might not get it until tomorrow.

damn that sucks!

[Ghetto_CB7]

header is in hand

Header has arrived, if you want to see pictures jump over to The h22 group buy thread under the bisimoto members shops section.

You will also find the first stock vs bisi comparison Dyno there. It's on what appears to be a basically stock h22.

I am.still doing this test, especially since I have better intake hardware then that test.

That motor made +18 whp over stock, so there is a precident for me now lol.

I have a Dyno appt on Thursday for the baseline and will hopefully http the after Dyno done late next week.

[Losiracer2]

I'd just Dyno it on what you drive with everyday...so that probably means w/ the Exhaust to get a good grasp of what it'd be like from a day to day standpoint.