im not sure why my car is doing this... i installed 440 rc injectors in my gsr motor and switched ecu from stock p72 to p28 i bought from ebay... the guy told me it was tuned for 440 rc injector already.. so i put that in my obd-1 crx and it start up fine. . but when i go to try it out.. when ever it hits 4800 rpm my car slows down and it bogs .... if i step more on the gas it just wont pick up it chokes instead... i feel like the fuel is being cut off.. thats why there is a major pull back and slows down....i was wondering if this is my ecu p28 chipped with crome that is doing this?... do i have to get my car tuned for it to stop doing this?... im mean it ran fine with stock injectors and stock ecu this only happened when i switched them out..please give me some feedback thanks...

 

bump!!!!

 

are you turbo? if not why are you running 440's?

 

no im not turbo im allmotor for now...might go supercharger later on when i have the money to do so... that's the reason why i bought them.. but i installed them to get some more power out of my car...i mean its fine to use 440 rc injector on allmotor cars right? people have done it....

 

put your stock injectors back in....
sounds like the motor is going too rich when Xing over...

 

na but it runs fine from 2000 rpm through when vtec kicks in which is at 4800 rpm is when it slows down instead of pulling foward.. my question is do you think this could be the ecu that i have to get it tuned for my engine? or a tune wont fix this? because the guy i bought it from had it tuned for his gsr engine he told me he was allmotor... not sure what to do here.. please help out...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ALLMOTOR CRX &raquo;</TD></TR><TR><TD CLASS="quote">na but it runs fine from 2000 rpm through when vtec kicks in which is at 4800 rpm is when it slows down instead of pulling foward.. my question is do you think this could be the ecu that i have to get it tuned for my engine? or a tune wont fix this? because the guy i bought it from had it tuned for his gsr engine he told me he was allmotor... not sure what to do here.. please help out...</TD></TR></TABLE>
this is at WOT correct?
probably because its still running rich on low cam settings but not rich enough that its gonna effect power output...but when it crosses over it goes to a table thats too rich and its pretty much flooding the cylinder...gas as a liquid doesnt combust...and if you have too much gas in the cylinder its not gonna burn very well or even at all....think about it your using an injector rated at almost twice the flow of your stock injectors w/ a tune thats from another motor...unless your build is pretty damn close to the previous owners your not gonna be running at full potential...
either put your stock injectors back in till you get blown or get tuned w/ the 440s...
are u throwing any codes?

 

damn you know your stuff man.. thanks for the all the help you are giving me... but one thing so you think that if i get it tuned asap it will run fine now?.. because thats what im planning on doing probably this week or next week. but im not going to use the car anymore until i do so.... oh and im not getting any codes or check engine light....

oh and what do you mean blown?

 

by blown i mean supercharged

what have you done to the motor that you need to run injectors that large?

stock injectors are good to ~ 190whp...once your making power close/over that then its time to upgrade...but for something as easy to change out as injectors i dont see why you dont run the stock ones till you NEED to upgrade...

well yeah, the whole point of getting a motor tuned is to make it run optimaly....

like i said before...run your stock injectors/ecu till you get tuned...if you need more injector swap em out at the tuner spot...

im assuming your gas mileage also has gone to **** since you put these in?

 

your right bro gas mileage goes down every time i even turn it on.... i think i might be close to 190whp thats why i swapped them out too.. and for the reason that i might get blown and install larger cams, springs, and retainers with at 12.5 intake lift and 11.9 exhaust

im not going to swap to back to stock injectors i will get my car tuned and see what happens if it keeps on doing this when vtec kicks in i will probably swap them out...

oh and you dont think something major could happened to the engine do you? like bent valve or something like that?

 

what have you done to it that your close to 190 whp w/o cams?

did you have problems w/ detonation with your stock ecu/injectors?

i really dont know much about forced induction to help you out with your supercharger questions...talk to streetwerkz....hes one of the more knowledgable SC guys and is really chill so i dont think he would mind helping you out if you approach him correctly..

it will drive fine after you tune it...

i really dont know what could have happened to your motor....does it smoke,make irregular noises,backfire,bog? are you throwing any codes?

 

im not getting any of what you posted smoke,irregular noises,backfire, maybe bog if thats what my motor is doing at 4800 rpm but i dont think so because it runs fine except when it hits vtec....and no codes at all..well here are the mods done to it

1.8 gsr
aem cold air intake and bypass valve
larger throttle edelbrock
bbk single stage mani
aem fuel rail
440 rc injectors
skunk2 cam gears
ctr crank pulley
hks spark plugs
4-1 dc headers
test pipe
act stage 3 clutch with 7lb fidanza flywheel
lsd y1 tranny
obd-1 with chipped p28 ecu with crome
and thats about it i think..


and yes im talking to street werkz right now about all my supercharger questions...

hey thanks for all the quick replys bro really helpfull..

 

alright...now your probably not gonna want to hear this, but your setup is no where near 190 whp as it stands right now...more along the lines of 160-165 whp and thats being generous....

you DO NOT need 440 injectors...yeah i know you just got em and all, but even w/ cams your stock injectors are probably gonna be ok....

for the time being ( and this is coming from someone thats trying to help you not feed you bullshit) run the stock injectors and ECU...

the car ran perfect before right?
and it didnt start to bog until after you put in the aftermarket injectors and chipped ECU right?

obviously a tune is gonna be beneficial to any motor with increased airflow...however you already spent the money on the injectors that arent meant for your motor and it makes the motor run like crap...instead of wasting money and tuning the motor so it runs SLIGHTLY better than before, put the stock injectors back in,use the money you were gonna spend on the tune to start buying the stuff for your cam install, and then tune the car once you have the cams installed...

all im saying is your gonna have to retune the motor anyways with new cams...might as well save yourself some money by doing it once when it needs it instead of twice just to get a part that doesnt match your setup to work properly...

if you got anymore questions feel free to post em...ill answer them tomorrow...im outie right now...good luck with your setup!

 

that you are absolutly right bro i will take your advice no doubt..... rather wait a little longer for my car to be running again.... rather just get some money and buy me the springs and retainers already.. i mean i already have the cams that are going to go in all i need is the springs and retainers.. which are 389 bucks.. and 280 for the install and then 150 for dyno and tune damn thats a lot of money... i just installed the injectors to see if i could get some more hp out of my motor but i guess i just made it worse... yeah i might swap them out and change them.... hey well thanks a lot for all the quick reply's and all your helpfull answers bro i will defently take your advice thanks..... heres my car check it out...what you think bro..

 

yeah just put the 440s aside till you need them...if your going w/ forced induction in the future they will definitely be necessary...

the car looks nice....are those SiR seats?
are those fog lights from an EK?
also i like how the black mesh looks over the factory fog light holes
i always thought shaved moldings looked really sharp....if you ever repaint it, shaved door handles would be sooooo clean.

 

you have a good eye notice the shaved doors damn... well yeah the fog lights are from an ek jdm and they light up like a second set of headlights they're awsome....yes those are siR seats but i have already taken them out and replaced them with the jdm type r seats recaros you know.. black with red stiches it looks even better.... hey but thanks again for all the tips bro you did change my mine about these 440 injectors i will swap the stock once tommorow defently thanks.. again...

 

dope...yeah its definitely coming along nicely....i bet the recaros look real sharp..


dont lose all hope for the 440 injectors...you can still use them later on down the road....when you do the cam swap u might get close to maxing out the stock injectors, and since you will need a tune anyways after a big cam swap you can throw them in at that time and have the motor tuned w/ the 440s...but in the mean time you will see the best results with the stock pieces....

good luck with your build...looking good so far

 

I agree with the 440's being too large, but just to throw this out there are they peak and hold or saturated, and Im guessing you still using the oem resistor box?

 

So, basically, from that list, you have a GSR w/ an intake manifold and the wrong injectors.

Get it tuned for the proper amount of fuel and timing.

 

they are saturated and no im not using no resistor box its obd-1 with p28 ecu chipped...
obd-0 to obd-1 by rywire..


and for tippyman thats exactly what i will do bro....and install cams,springs,retainers,flat valves,, and ealge lightened crank, arias 81mm high compression pistons, new bearings, new seals, one layer head gasket, arp head studs, msd coil, with msd 6al, and then 440 rc injectors, jackson racing supercharger, and then thats when i will get it all tuned up hopefully will get about 215 whp... think its possible? very


Modified by ALLMOTOR CRX at 11:56 PM 4/6/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ALLMOTOR CRX &raquo;</TD></TR><TR><TD CLASS="quote">they are saturated and no im not using no resistor box its obd-1 with p28 ecu chipped...
obd-0 to obd-1 by rywire..


and for tippyman thats exactly what i will do bro....and install cams,springs,retainers,flat valves, ctr pistons, and ealge lightened crank, arias 81mm high compression pistons, new bearings, new seals, one layer head gasket, arp head studs, msd coil, with msd 6al, and then 440 rc injectors, jackson racing supercharger, and then thats when i will get it all tuned up hopefully will get about 215 whp... think its possible? very</TD></TR></TABLE>

All that for 215?

 

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

All that for 215? </TD></TR></TABLE>

try helping the guy out instead of trying to mock him...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ALLMOTOR CRX &raquo;</TD></TR><TR><TD CLASS="quote">
and for tippyman thats exactly what i will do bro....and install cams,springs,retainers,flat valves, ctr pistons, and ealge lightened crank, arias 81mm high compression pistons, new bearings, new seals, one layer head gasket, arp head studs, msd coil, with msd 6al, and then 440 rc injectors, jackson racing supercharger, and then thats when i will get it all tuned up hopefully will get about 215 whp... think its possible? very</TD></TR></TABLE>

me and you need to have a long talk about what your plans are for this car...cuz it seems the way you have constructed your list, your gonna be throwing a lot of money at a motor that is not gonna perform well....

first of all if you plan on supercharging your vehicle, you dont want to build the motor up for high comp...so make up your mind...are you gonna build your motor for all motor or supercharger...N/A and FI require two different approaches to assemble the motor....FI likes low compression,high lift cams w/ short duration, longer runners, and can work well w/ high or low rpm...N/A likes high compression,high lift cams w/ long duration,short intake runners and high revs...

just so you know ctr pistons in a gsr block w/gsr head is gonna have your static comp. ratio almost 13:1...add flat valves and a 1 layer HG and your talking a big disaster....also you say your gonna run ctr pistons and arias high comp pistons? which one is it?
things i agree with:
cams
valvetrain
arias pistons
new bearings
seals
head studs
440 injectors
rod bolts- you didnt put them on your list but they are necessary for a high reving high performance motor
cam gears - you also didnt mention this...essential for properly dialing in large cams...

things you dont need:
flat valves (stock valves are fine...if you want high comp and are changing the pistons, get pistons that will make you reach your compression goal.)
ctr pistons
eagle lightened crank (stick with stock...you have no need for this right now)
one layer HG (not reliable...stick w/ oem 3 layer or possibly oem 2 layer)
msd coil and 6al - stock ignition is fine right now
supercharger- i think you should learn the basics of N/A before you even think about FI...

pretty much, you need to make a plan on what you really want out of this motor or else your gonna end up spending a lot of money on a mismatched motor thats gonna end up sucking till it blows up....


just doing cams,valvetrain and pistons will have you over 200 whp....maybe more if you have a good tuner...

all i can recommend is that you read as much as possible before you buy any more parts...and if you got any more questions dont be afraid to ask...ill be honest with you...and even though you might not always want to hear what im telling you, in the long run youll see that im only trying to steer you in the right direction....

 

damn bro you always prove me wrongs thanks a lot for helping me out.. all this info you are writing im downloading it in to my head trust me its not going in one ear and out the other no... thanks a lot bro...to tell you the truth i want to go allmotor more than anything else... and im doing my research on what i should buy or not buy....

so stock crank is fine?... i mean i read ericksracing.com website and he talks about how making your engine bigger is the way you make good hp and stuff thats why i look into a crankshaft....

so your saying cams and pistons will throw me over 200whp with a good tuner? ok maybe you have changes my plans for my motor...

i was looking at the arias 81mm dome top pistons with eagle h connecting rods and arp rod bolts.. zex cams 57200 INTAKE lift - 12.45 mm, duration 248 @ 0.05 in.
EXHAUST lift - 11.43 mm, duration 246 @ 0.05 in

also zex springs and titanium retainers....440 rc injectors, skunk2 cam gears adjustable, and thats about it...

so what you think is about this setup?

 

Seriously man, I won't bust your ***** anymore cause it seems like your really trying, but why are you stuck on those 440 injectors?
You don't need them unless your gonna boost it. Its just overkill. Some things you can overkill with good results, like sleeving, or really good pistons and rods with ARP bolts, or good quality headwork, but those injectors need to be uninstalled and sold so that you can apply that money to a more useful cause.

If you want an all motor car, sell those squirters and get some oem. At the largest, the H22 injectors will be more than enough.

You also need to go into the all motor forum and do some research and ask questions. There are a lot of good guys in there that will help you out.

 

Okay, I checked out that ericksracing.com site. That dude is doing high-dollar, full-race, hardcore allmotor drag stuff, man. Unless you want to spend $10K on a competition race engine build, that site's not what you should be looking at for info. If you just want a 200+ whp DD, listen to the advice above and poke around on this site a little more. Keep at it man.

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