My integra redlines at like 5-5500rpm.what is going on?

would this be normal for any reason?

 

What do you mean it "redlines" there? You mean it stops pulling at that point?
Please explain better. Your car definitely doesn't "redline" at 5k.

 

if i were to haul ***,I basically have to shift at 5k every gear.it will sputter and stop pulling like it is redlining at 5k.

 

Any CEL? Did the car run normal before?

 

It sounds like the ECU is in some sort of limp mode. What year, engine, and ECU do you have?

 

I never got a chance to drive it before i built it, i bought it as a clunker basically lol.so all i can say is that it has been rev limiting like this for the entire time i have gotten to drive it.it only has,give or take, 60 miles on it.if even that.



once in a while(usually after a lot of downshifting or highway driving,i will get the o2 sensor code,but i dont think it is related because it will rev limit whether the code is on or not,and there is no cel that gets kicked on when it happens.




this is a 91 integra
b18a1 motor
b18b valves/stems/springs/retainers/keepers/rocker arms and cams in a polished/balance checked b18a1 head.
all turbo seal gaskets and o rings(soon to be turbo)
race piston rings and rod bearings

ecu is stock

since ive finished this build,i have replaced
distributor(salvage yard,so used)
main relay
gaskets and o rings ^
new motor grounds
misc wiring
timing belt
radiator(from a 94 dc)



i havent changed the oil filter since i got the car,so it is WEEELLLLL overdue for one,especially after having gone through an overheat and getting thick milky oil before this new headgasket swap..


also,ill just let this one out,because i dont KNOW for a fact if this would have anything to do with it or not.upon the build i f'd up two valve guides and in turn,had to remove one rocker arm from both of the intake cylinders,disabling the valve from opening(intake valves.it is temporary for now)..if there is a power loss,it is very,very unnoticeable,other than the fact that i cant make a full pull because it redlines early...
could this effect it?

 

2nd on the ECU. Try swapping it with a known good one.

 

ill try it and let you guys know.thanks a lot!

 

dude you blew a headgasket, had milky oil, and left the same oil filter in it after rebuilding everything? WTF?....and you're running it without a valve basically? Jesus man. why don't you fix all of that, THEN see if it still has issues.

 

Sounds like a whole bunch of fcked up **** that needs to be fixed properly in order for it to even function right.

 

i know what i am doing.if you saw it,youd be surprised,but it isnt as ghetto as it sounds.

i blew a headgasket yes,but since that i have replaced the gasket and had the head balance checked and polished once again.but since that blown headgasket,i just havent changed the oil filter..

now you know why i didnt want to reveal it lol.like i said,its temporary.


update:
i tried my friend's ecu from his 90 integra.i could get up past 5k.
but then i put my stock ecu back in...now it does not rev limit anymore..so im not so sure the ecu was the problem. now it is redlining as it should.maybe it only happens sometimes?i dont know.
im pretty sure its this oil filter.thanks for the help guys.

 

Won't last long. With out the intake valve opening it is just puddle gas on the valves on that cylinder. During high rpm pulls, on day it will suck that valve slightly open and hydrolock the cylinder.

And the filter. Question: If you **** your pants and then take a shower. Would you put you shitty underware back on? How stupid can you be? I would shoot myself.

 

it should have been "if you **** your pants,would you take a shower with them on?"lol. because i didnt reuse the oil filter,i never took it off.just got overlooked is all.
im on an extremely low budget,and needed other things more importantly..its not that big of a deal,it can be changed in a matter of minutes.calm down.

"During high rpm pulls, on day it will suck that valve slightly open and hydrolock the cylinder.".... are you just trying to sound smart?
ill take into consideration your thoughts,but it does not mean i agree with you.


also,to let everyone know,i found the problem.my radiator has a tiny hole in it,and if i get on it hard,the rad. fluid sprays out through a tiny hole,causing me to lose pressure after the radiator hits damn near empty.it seems as if it is working like a major vacuum leak..
i also picked up a new oil filter,will be putting it on tomorrow.

thanks for the help HT.

 

Damn near blew coffee out my nose when I read about the hydro-lock, "it will suck that valve slightly open and hydrolock the cylinder" sometimes the "help" is stupid. 94

 

I didn't know you could hydrolock off gas?

 

Technically you can hydro-lock with any liquid, but that would be a lot of gas, more then could "pool" in the intake manifold. 94

 

having around the same problem... but mine limp mode'ed mid drive... going to check codes now... then ill be making a topic...

 

I witnessed someone do that. They connected the fuel line to a vacuum port on a carburetor.

It was an old Cutlass.

 

If you're pressurizing your coollant system during load, you have not fixed your head gasket. Any why would you ever run to redline with one intake valve broken?
Sounds to me like "I am broke, I have a broken engine, I want my broken engine to rev to 8K" Doens't make much sense, get some cents.

 

Bump.

 

If your car has all these problems and it's your daily beater, then why are you doing all these pulls with it?