Today I called a vendor to check on the shipping status of my T1R header, and he suggested the T1R exhaust too (because he just got a shipment or something).

So if I have the header, injectors, and 5# a/t kit, is the axle/cat-back worth picking up, ie, any whp gains to be had at that point?

 

Yes, I'd definitely run an axle back exhaust as well!

 

It will for sure help a little from what I have been told-- plus it looks so much better!

T1R stuff kicks a**, by the way.

 

i wouldn't get the injector upgrade until there has been a definitive answer to what is causing the problems that myself and the others with the injector upgrade have had.

I am not aware of what different exhaust components KW has tested with other than megan which is 60mm. if they have it would be nice to know.

what i do know so far is that diferent exhaust components (headers/test pipes/mid pipes/axle backs) have diferent diameters. the majority other than megan and skunk2 are 50mm. the only test pipe that are offered are the J's and t1r which are 50mm and the megan which is 60mm. and the different headers have diferent size tubes. all of these variations will affect exhaust flow and back pressure. so running a fixed fuel map/injector upgrade with one combination vs. the other will definately yield richer/leaner a/f ratios in closed and open loop.

this seems to be true considering that the people having this problem are running the injectors with exhaust components that are not the same diameter although i can't say with 100% certainty because i am sure there are other variables and i do not know what other brands of headers,test pipes, mid pipes, and axlebacks KW used in its test plan. I am just looking at the information available to me and trying to make some kind of logical conclusion.

KW did contact my mechanic today i think and recommended installing the stock injectors back on and then checking the a/f ratio via my AEM gauge. I suspect that while it might fix the CEL i might be running too lean in open loop at WOT.

I also spent some time on the phone with RC injectors and explained in detail everything that has happened thus far (they are REALLY cool and helpful) and they said that i should maybe try the 195cc injectors if the 205's are causing me to run too rich and the stockers are causing me to run too lean.

my car is still at the shop so i have to get a rental for tomorrow. hopefully i will have my car back tomorrow. Hopefully.

EDIT: and let me just say for the umteenth time that KW has been as helpful as they can during this process. Oscar is and has always been very pleasant to communicate with and has offered his knowledge and advice without quesiton. I am sure if i was living in cali and having these issues he would probably offer to have me bring it in and have them check it out. and i am certain that he is just as frustrated as the people are who are having these problems. hopefully this will be resolved shortly and whatever the news i will keep the fitfreak community and KW posted.

 

so no headers, just a cat back exhaust...and only running 3-4 psi...hmm.

bascially i want to know if its going to be worth throwing down the cash for it....i know leonie said it was only for about 25 hp, but thats 25 hp to the WHEELS, so in reality its more like 35-40 engine producing hp, which is nice, but still expensive.


how much quicker does it feel than stock? do you feel like you have to strain the engine like you used to when passing? when you sat in your car, and turned the key after it was first installed and floored it, where you pleased?

i know i have to take it with a grain of salt, especially since your kit is only at 3-4 psi, so the 5psi version will be more lively.

again, the only reason i'm asking this is because no one has given me an answer on the hondata version for the a/t. but if the benefit of the extra performance from the base kit is enough, then i'll be content with that too.

 

leonine: i hope everything works out man! geez you have been a trooper!

 

oh of course dude! according to kraftwerks, you run the upgraded injectors and no headers or cat, and your out of luck. but like i just read, the only guy with an a/t kit has the base kit and he's running with no injectors or headers, but a b pipe and axle back. but if you are going to do the injectors, get the header.


xorbe, would you consider the hondata upgrade if it becomes availble to us?

 

thanks bro! i am trying to remain as positive as i can.

 

Ok,
I will try to answer the questions the best i can! I love it...
1. Passing on the freeway you only need a little gas not allot like stock
and you are gone, no strain on engine at all, even under boost the motor does not feel like is is straining like stock.
2. It feels a He_l of alot quicker is the only way to put it.
3. When I first drove the car it had the A/C on and there was more power than it had before without A/C on, very happy with the results, and still happy.
4. The car feels "normal" until you give it some gas, a little pedal, and you can feel it.
That's about it.
If anyone in the area wants to take a ride or drive it (with me along), let me know that way everyone will get an un-biased opinion.
Hope this helped
AC

 

i *am* getting the header. i just don't know about getting cat-back exhaust, and how involved that is, or if there's any gains from that with the 5# kit+header.

well, i thought they said the hondata would not be available for the a/t kit, but if it is, i'd have to see how involved it is. i wasn't planning on it. i've already bit off more than i had planned to chew already... and the hondata isn't going to pass CA smog test i suspect. i can wrench off the injectors and header if i must in 2012, but redoing the car computer, that's too much i think.

how's the new avatar icon?

 

Hmmm what to do. I think I will have the same problem as you Leonine with the injector upgrade. Will definitely check out what my CEL is tomorrow or Friday when I get my Scangauge. My car still drives normally and it has not put me in limp mode. What other options do we have? It looks like a few of us are having the same problems.

And to be honest, I don't feel like shelling out a bunch of money again for new injectors because these ones are squeezing too much fuel into the engine during idle. That's an extra cost I don't think any of us want to incur.

 

what do you mean by limp mode?

this is all speculation on my part. as i said i am trying to puzzle this together with the info i have. there is always the possibility that we screwed something up and if so i'll be the first to say it.

Going to give my mechanic a call soon and check up on the progress.

 

Oh, limp mode is when the car limits the actions of the car. Basically, you can barely accelerate and will be limited to say something stupid like 3k RPMs.

Let us know what you find out right away! I'm starting to worry that I'm doing more harm than good by driving mine. Will the Scangauge II tell me my A/F ratio, or do I need a wideband A/F gauge to do that?

 

As promised here are they dyno charts from

Before Mods: Mugen header, Mugen drop-in filter, J's Racing catback
After Mods: Jackson Racing Supercharger base kit, J's racing catback

http://farm3.static.flickr.com/2248/...6a2510a2_b.jpg

From this you can see that although the Jackson racing supercharger does make some good additional power after 4.5 grand, without the header, you are looking at a torque and horsepower curve that lies underneath that of a setup without the supercharger. Your results will vary with the type of header you guys are looking to run. Also as you can see the hp and torque curves are very linear, and provide a very even and stock feel of increased power.

Hopefully when I get the injector upgrade package back on I'll be able to regain the lost bottom end and even some more. I'll be back with an update once the package becomes available.

Tom

 

Wow, great numbers did.

Also, you never really lost any power on your bottom end, you just never gained any lol.

Again, numbers are looking nice. Congrats.

 

Why did you take off the injector upgrade?

 

you need an a/f gauge to monitor that. if you don't have one GET IT! it has been an invaluable tool in my diagnosis and will help any shop who is trying to diagnose a problem like this to see how the car is running without putting it on a dyno. and even then depending on where they hook up a sniffer (most likely after the cat to the tail pipe) you will not be getting acurate readings.

 

here's what i know so far:

1) he is putting the stock injectors back in now. then he will test drive it and monitor the a/f readings. if it is running to lean he is going to put on the 205's for now and i am going to order 195's from rc. the size is somewhat smaller and the spray pattern is different.

2) my supercard was not grounded to the battery. he did check the ground and said it seemed good compared to the negative terminal but he is wiring it to the battery. i missed that after 16 hours and no sleep. that is my bad. illusive has his wired to the battery and also getting a CEL but he cannot confirm what the code is because he does not have his scangauge yet so it is possible that it could be different.

3) my mechanic did comment that the injectors seemed to by quite a big step up for only 5 psi. he also said that my mugen setup (header/axleback) is more geared for naturally aspirated motors). he said mugen in general is set up this way from his experience. this could also be causing a flow restriction which is running too rich.

my guys are top notch and i take there word. they are authorized installers for the old JR kits and have been doing this for a LONG time. depending in the a/f readings i will either keep the stock injectors on or look into the 195's from RC.

 

Thanks for the info Leonine. I might have to opt for those 195cc injectors as well...

Will definitely be ordering a Wideband A/F Gauge along with the T1R Test Pipe this week. Damn, this is eating into my Vegas fund!!!

 

its really curious that you'd have to down size your injectors from 205. I'm sure Kraftwerks tested the crap out of the upgraded injector kit before they released it. I understand that the exhaust components on Chris' car only accounts for one possible set up, but would a slightly different header cause this big of a problem? Makes me kind of wonder what would happen if someone got the 310 Injectors with the hondata reflash.