sleepy5950

i too am in the process of choosing headers

and yea why dont you guys test regular h22 headers aswell

MikeySpec

Yeah, you jerks. You guys with all of your fancy r&d testing never satisfy us! So chop chop, back to the kitchen and make me a sammich

SL0WEGG

JDMxH2B

is it best i run a 3 inch exhaust ????

eTiLiKo

Is your header a real old RMF?Or it is a new production (made by whom?)

q16racer

Takes 30 secs to google it and get opinions.

GoldLudeRay

its just a new replica...modded

tagperformance

I also heard that bisimoto headers were manufactured by RMF , looks like someone did their homework.

00Red_SiR

since he's no longer on this earth, that might be difficult.

GoldLudeRay

i think what you ment was...rmf once had headers that were based on the same design...bisi will sometimes say there headers are one off and not copyed...a smart person will tell you allmost all header's design have been copyed...headers have been around for along time you can only bend them so many different ways

soulpwr

This thread proved absolutely nothing except that a properly manipulated "test" could sway a crowd. Why is there is no overlay of all 3 headers or air fuel ratios? And the video shows them all within ~1hp of each other at the top. The mid range dip that you claim existed but never proved with an overlay could have to do with plenty of other variables. Things like the lack of an exhaust, tuning, crossover points, ignition timing and "fuel maps that looked similar" but could have been altered in between runs to make any of the products look more desirable.

I'm not picking sides and I don't own any of these headers but some of the people in this thread seem to have a vested interest in the sales and marketing of a specific header.

The comparison of track application headers to production headers clearly doesn't work either Julio, since package constraints limit what you can put under the hood of a street car and all of the headers on the posted drag cars are longer than the production units. The last video you posted shows a quick pull with no comparison to anything else either. I also understand that a pissing match isn't really something you're looking to get into from a business standpoint, especially with someone on the other end of the U.S.

That being said, there is also no evidence that any of the graphs shown in the test video are from the header they are claimed to be from, we have just your word and video editing to go by.

JayWest

Yup, so dont believe it. I really dont give a **** lol

JdM iGeN

iTrader: (1)

Please read the post below

cibao2ner

all i wanna say is thanks for the test...they do help the sport...and consumers..when i bough my bisimoto i bought it for 3 reasons...
1.."custom"
2..the look
3..i have a 3 inch exhaust and wanted something to bolt up

according to what others have posted they have the same dimensions on 1.8l, and 2.0l so its not really custom...looks great so thats good specialy after it heats up and gets the ss gold look...

but the main reason i got it was so it could bolt to my exhaust which accordig to the sales rep it did...but i ended up having to buy a piece of pipe, a flexi and flanges..over 100 bucks cause i couldnt find a 3 inch donut kit...

for the 800 i paid they could at least had included the required donut and spring bolt kit..so it doesnt crack...

but im still hoping it makes decent power on my setup...if it does i dont care about the rest..

GoldLudeRay

if you have followed jaywest.....he wants too go fast...and he put the header on his car to help himself go faster...reguardless of brand or look...he put the header that he feels perform's the best on...he isnt influenced anyway other the his own personal et goals....


the thanks for the test results..look foward too seeing some new et's

00Red_SiR

I think the point being made here is that, if you want to test all this for yourselves so YOU all know the truth, that fine. If you want to SHARE all the information that you learned from the test by posting it here, there's a certain obligation to show ALL the graphs/charts/info etc so there is real benefit/tech etc and the thread doesn't end up in a pissing contest over it's validity.

I thought all the charts were going to be posted?

JayWest

Understood, unfortunately i do not work at the shop or ever go there unless i need to dyno. If my tuner can get the graphs for me, great. If not, I'll be back on the dyno in the next few weeks.

I think it's one thing to ask for the overlays, its another to accuse someone of skewing the results because the overlays are not posted. As stated above, I have absolutely nothing to gain from posting the results of one companys product over another. I want to run whatever makes the most power for my setup. I chose to share it so others with similar setups can see the results and decide what products they might want to run. I know I should probably post every little detail about these tests, but realistically, once I do the test, it's almost just as much work to post these threads as it is to do the test in the first place.

Anyways, hopefully we will have them posted in the near future.

00Red_SiR

Agreed...

OUTOFTHEGROOVE

Jay West is gonna have another header to test this winter, it will be a TRUE custom header, not built for his own car but for a larger 90x95 setup. i think it will still be interesting to see how it performs against these other popular "custom" headers

good seeing u @ mir Jason, u know who this is...

dirtyharryhatch

Way too many variables, lets say your header makes the least power, and it is made by x. It will mislead people to believe x makes bad header's but in reality it is more than likely because of the size motor your header will be intended for. Unless you get other companies to make you a header intended for your 90x95, then right there you can take down all the variables. Good luck.

OUTOFTHEGROOVE

this is one of my headers meaning i made it and im ok if it performs subpar to the other headers tested since mine is not designed for a 87x90, id just like to see the data. even so i have a feeling it will hold its own, especially in the top of the powerband which is what its designed for...

Jason is a good candidate for testing my parts because he has a consistant drag car and a good tuner. they both know how to test parts correctly on the dyno. as for testing the header on the motor its designed for as well as larger motors, i have already done so myself and have all the data i need from larger displacement testing. im just curious to see what it will do on a stock bottom. i know it wont perform to its full potential since the primaries will be a bit to large as well as the collector but we will see how it does

dirtyharryhatch

That'd be interesting, id be down to stop by when they do another header test. It's always chill to hang at p2r and eat 5 guys right after lol.

MikeySpec

Next time you're over at Sean's tell him i said wasup! Its been a while. I havent talked to him since we had dinner at Nasa Nationals a few years back.

JayWest

good seing you too bud
Can't wait, I'm sure i'll be in the market for a new header after the test lol

JayWest

mello yello bruh!