soulrider4ever

I'm on the highway, just chilling, when this chevy cavalier starts messing with me like he wanted some. so being as i just got this car, and havent had to much fun with it yet, i wanted to go ahead and give it a try. I drop to 4th gear and go at it... well needless to say with my turbo GSR in a 93 civic hatch it wasnt much of a race.

Now, I'm going about 115 ish, and i decide what the hell lets open it up and get a top speed idea, so into 5th I go, its chugging along, getting up there 125... then 5600 rpm's in 5th, i get like a buck out of the car. I didnt try to go past that point, but it defintly felt like a fuel cut off or rev limiter, but im not really sure... i was defintly a little upset but thats why im posting it here to get a heads up.

my fuel stuff

i have a greddy 18g turbo on a gsr motor in a 93 hatch
missing link / jackson racing FMU
440cc injectors
stock fuel pump
p72 obd1 ecu
currently have a cel code 23 knock sensor on but i dont believe that'll effect that.

i did search before i posted.. somebody said thay they were running rich on top and it acted like a rev limiter. i havent gotten it tuned yet (getting hondata soon)

so, does anybody have a clue why this happened and how to fix it?

Lucky_Smurf

My guess is speed limiter on the factory ecu. In all the honda cars I've had the factory limits the speed to around that 115-120 mph. When you get hondata no more cut out.

soulrider4ever

I was under the impression that the obd1 gsr motor's dont have a limiter. im 99% positive its not jdm.

markaria

are you sure you didn't have a misfire? If I were you I would definitely not be boosting in fifth with a fmu...
Definitely check your plugs for any signs of problems and I would look into getting some sort of real fuel management. good luck.

soulrider4ever

ok .. thanks for the advice..

no more top speed checks until i get a hondata! keep it in 4th unless cruising on highway.

i dont think i misfired... im guessing maybe im wrong and i have a jdm ecu, because the usdm dont have govenor.

hatchbackhonda

if you are running stock internals never boost 5th gear i thought everyone knew this good way to mess up your motor 5th gear is too much strain on your motor i didnt even boost 5th with a built motor but hopefully u learned not to do that again prolly my boosted 5th real hard one day and burnt a valve in a gs-r so take my advice how u wanna i would get a leak down test done if the car is running funny now . definately check them plugs for detnation

soulrider4ever

Well,

I'm definitly not boosting in 5th thats for sure anymore! i dont need to go 160mph anyway or whatever i would get...

The car is definitly running fine though, which is good.

plugs seem to be a ok!

guess i got lucky! Thank God

kpt4321

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchbackhonda &raquo;</TD></TR><TR><TD CLASS="quote">if you are running stock internals never boost 5th gear i thought everyone knew this good way to mess up your motor 5th gear is too much strain on your motor i didnt even boost 5th with a built motor but hopefully u learned not to do that again prolly my boosted 5th real hard one day and burnt a valve in a gs-r so take my advice how u wanna i would get a leak down test done if the car is running funny now . definately check them plugs for detnation
</TD></TR></TABLE>

For the love of god, can you please use English?

kpt4321

You have an FMU and 440's? What is the ratio on the FMU?

Sounds like bad news.

soulrider4ever

i was actually wondering what the ratio is on my jackson racing fmu.. nobody seems to know. I heard it is a 5:1 .. but dont really know. and yeah why is that trouble? wayyy to much fuel right?

cant wait to just get hondata and be done with all these issues.


EDIT : just got off phone with JRSC tech.. its definitly a 5:1 ratio

Modified by soulrider4ever at 9:52 AM 2/23/2004


Modified by soulrider4ever at 10:32 AM 2/23/2004

kpt4321

Yes, 440's are enough fuel without a rising rate FPR. You have a rediculious amount.

soulrider4ever

thats what i thought...

my concern is.. i bought the car already done...

i was told it has 440cc injectors.........but until i actually physically see that they are 440cc, i dont want to get rid of the fmu, just incase he wasnt saying something like they act like 440cc injectors, know what i mean?

soo.. ill probably keep the fmu on until i get hondata.

is there a quick/easy way to check the size of the injectors...

i do get smoke out the exhaust when i WOT.. being rich obviously.. so.. im positive i have plenty of fuel going to the engine...

when i get dyno'd ill post what my a/f is. thanks