EDIT: sorry if this post was misleading. This is meant to help fix certain S2000's with the symptoms i listed below. If your s2k is running fine with without any hickups/sputters/mis-fires/ or idles, this probably won't benefit you.

This is not an advertisement. It is useful information for s2000 owners. We will soon become a sponsor for honda-tech.com and at that time i will let the members know about pricing and what not.

I'm not sure if this was covered before, or if anyone knew about it.

After some research to find out the stock injectors capacity, we found out that the stock injectors are mismatched from the get go.

After installing my exhaust system on my s2k, i could literally hear sort of a misfire from the exhaust. After talking to John about it, we decided to test out his idea about re-matching the injectors. What we did by collecting a variety of oem injectors, and then checking the flow on everyone of them, we match the 4 injectors with the closest flow rating.

It is sort of wierd seeing many s2000's with such unprecise injectors...

anywhoot, here is a dyno graph of my stock s2k with a T1R exhaust. shows about a 5rwhp (sae corrected) gain.



After doing this, i can truly feel a gain in power through the "butt dyno" the car runs way more smooth. it sounds perfect at idle. my idle does not drop after backing out in reverse, then putting into first. and vtec feels a lot different.

again, as soon as we become a sponsor for honda-tech.com i'll post the information as far as price is concerned.

hope this helps many members, i know it helped me!


Modified by Ya at 5:49 PM 3/7/2006


Modified by Ya at 5:49 PM 3/7/2006

 

So you'll be selling new injectors, or do we send in ours?

 

is that dyno comparing stock whp values with your exhaust AND matched injectors?
or is that graph just showing the increase after finding 4 matched injectors?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by revvin9k &raquo;</TD></TR><TR><TD CLASS="quote">So you'll be selling new injectors, or do we send in ours?</TD></TR></TABLE>

good question...so are you saying when there 'unmatched' that means the flows are off? so we need to get new injectors completely?

 

the base line dyno of 194 was my car WITH the exhaust.

the dyno of 199 is WITH the exhaust and matched injectors.

i'm sure there was an easier way of answering your question.....

 

they won't be NEW injectors. they will just be oem ones we have matched together.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by revvin9k &raquo;</TD></TR><TR><TD CLASS="quote">So you'll be selling new injectors, or do we send in ours?</TD></TR></TABLE>

Until we finish up becoming a sponsor for h-t, i won't mention any pricing yet.

 

Why not just send your injectors out to RC Engineering to be balanced?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .no tork. &raquo;</TD></TR><TR><TD CLASS="quote">Why not just send your injectors out to RC Engineering to be balanced?</TD></TR></TABLE>

yeah i dont know about this...s2000 is pretty much covered from the factory. theirs a reson for everything.

im still interested in this debate.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Francesco &raquo;</TD></TR><TR><TD CLASS="quote">yeah i dont know about this...s2000 is pretty much covered from the factory. theirs a reson for everything.

im still interested in this debate.</TD></TR></TABLE>

me too.

 

who cares.

 

rofl

 

&lt;----------Skeptic

I would guess that you just had a bad injector or something. Maybe one of them was very dirty or partially clogged.

 

gain an easy 5 whp. do a couple dyno pulls.... then let it cool off, then do another one... viola.

 

http://www.s2ki.com/forums/ind...66383

Looks like someone is trying to drum up some business.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GChambers &raquo;</TD></TR><TR><TD CLASS="quote">http://www.s2ki.com/forums/ind...66383

Looks like someone is trying to drum up some business.</TD></TR></TABLE>


I saw that as well on S2KI. Whats wrong with what he's doing? He has spent time on "some" R&D with the matched injectors, and he's trying to share within the community.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by revvin9k &raquo;</TD></TR><TR><TD CLASS="quote">


I saw that as well on S2KI. Whats wrong with what he's doing? He has spent time on "some" R&D with the matched injectors, and he's trying to share within the community.</TD></TR></TABLE>

THANK YOU!!!

i mean, honestly? i'm just sharing some info. I'm the 3rd s2000 that had this done. To answer your question about sending them out to RC, i'm sure this will work the same way if you were to have them re-calibrated / re-flowed. I dont know how much they charge, and i'm not sure how long them take.

We did some R&D to find out the max capacity of the oem injectors and found that they are mis-matched. I mean, thats what was sitting in front of us. After that, we began to gather oem injectors to find they are mis-matching as well. So we matched a set of 4 that had the same flow and kepted them together.

and Mase,

i know that you are a genious at tuning and you have done great things, but honestly,

we ran 3 runs, and the first 3 put out 194rwhp consistenly. we let the car cool down to work on it, put new injectors in. Ran the car 6 more times to get consistent runs of 199rwhp. if we didn something wrong here, you let me know.

 

when you say max capacity...does a stock s2k even reach max capacity on the stock injector?

i would be willing to get it tested on my car from rc if this is true...if it isn't are you willing to pay for it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dkim48 &raquo;</TD></TR><TR><TD CLASS="quote">when you say max capacity...does a stock s2k even reach max capacity on the stock injector?

i would be willing to get it tested on my car from rc if this is true...if it isn't are you willing to pay for it? </TD></TR></TABLE>

 

I for one appreciate this info. Everyone is quick to put people down on the board....I know it wouldn't hurt to confirm this from a few s2k's, but
He could have easily waited to be a sponsor then tried to sell injectors, but instead he let everyone know what he found through his R & D....Knowing you can get this done other places. then said he will be offering this service once he is a Sponsor.


I do have one question: Will thise be Matched and flowed OEM S2000 injectors?

 

270s on a B series can support about 200-220 fwhp. 360/370s shouldnt max out on an F series putting out 240.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slideways2000 &raquo;</TD></TR><TR><TD CLASS="quote">270s on a B series can support about 200-220 fwhp. 360/370s shouldnt max out on an F series putting out 240.</TD></TR></TABLE>

that's exactly what I was thinking...how mis-matched could they be? or is that info not going to be disclosed until you can sell the right matched injectors?

and revvin9k what's with the ?

 

The issue is not "maxed out injectors". OP is claiming Honda mismatch injectors from the factory. I could see how different flow rates could affect driveability, but I don't think Honda's tolerances are that bad.

I was thinking about a set of matched RC 370s myself.

 

Im finding it hard that honda could put mismatched injectors in all our cars. Its more likely that your injectors were dirty, and that cleaning them got them back in spec.

liam

 

We were testing out the maximum capacity of the stock injectors. We were not TRYING to max them out. We were doing it just to learn more about the injectors themselves.

After testing the injectors, we saw that the injectors have mis-matched flow ratings.

Cleaning the injectors have been done on s2ki.com but so far, its all been claimed to be a temp fix.

I don't get why people are twisting what i say? If you want to buy a set of new injectors from RC, go right ahead. I'm just letting the community know that we have tested 3 s2000's and they all showed mis matched flow readings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Scotty B &raquo;</TD></TR><TR><TD CLASS="quote">I for one appreciate this info. Everyone is quick to put people down on the board....I know it wouldn't hurt to confirm this from a few s2k's, but
He could have easily waited to be a sponsor then tried to sell injectors, but instead he let everyone know what he found through his R & D....Knowing you can get this done other places. then said he will be offering this service once he is a Sponsor.


I do have one question: Will thise be Matched and flowed OEM S2000 injectors?</TD></TR></TABLE>

yes they will be matched and flowed OEM injectors.