No power below 3k RPMS

[93cb7sedan]

there is an exhaust leak, it sounds like i have a fart can on there

i guess i can always redo my valve adjustment, make them a little looser

[WarAccord]

Hey 93,
I didn't think I caught you saying if your Tranny is a Manual or Auto.?
Cause if you got equal power in First,your shortest gear. you should have the significant amount of power from your Powerplant to all your Drive gears. I would do is check your trans fluids to see if you have alot of metallic metals in it. too much can make a Clutch, or torque converter to slip quite easily.
If you do have too much then your Fluids will need to be flushed, and if you have a Stick, Get a new oem clutch.(you shouldn't need to change the Torque converter)

[93cb7sedan]

i said it in there somewhere.

its a manual no auto POS for me

im gonna redo my valve clearances and work on a new cat and catback.


question tho, should i get a high flow cat and a catback system?

or just stick to OEM cat and get a catback system?

2.25 inch piping of course,

[93cb7sedan]

what are the chances that this could be fuel related. im sure the fuel filter had never been changed on this car.

the spark plugs were never changed, they had 186k miles on them!!! so i know its the original fuel filter

[owequitit]

1) It could possibly be the fuel filter.

2) It could possibly be the exhaust, although if it pulls well above 3K, I am a little skeptical of that. I have pulled the cats of 200K plus cars, and the cats weren't melted. It isn't impossible, but it isn't likely either unless something else is wrong. A good exhaust trick would be to get the entire exhaust manifold from a 90-91 Accord EX and put that on your car. It is good for about 5 Crank HP, and will make as much power as a header in most cases. It will also last forever and be cheap to buy. You are going to have to move the oxygen sensor, but if you can handle a valve adjustment, you can handle that. As for the rest, I recommend either buying a nice catback, or having someone bend one up for you. Just make sure you put a resonator on the exhaust.

2) It could also be the valve adjustment. When they say "slight drag" They actually mean quite a lot of drag. The best way to test is to make sure that the next largest feeler gauge won't go in. If you are trying to adjust to .010 and a .011 fits easily, then it isn't at .010. You shouldn't be able to get the bigger one in without really cramming it in there.

If it is auto, you will have to adjust somewhat. They suck the life out of these cars below 3K. Especially at high altitude or in hot temps. It won't be uncommon for it to have to downshift under those conditions.

[93cb7sedan]

kool.

i actually just posted on HT that i was gonna get an ex manifold. as far as catback. i think ill just try to find the piping for it and get one of those ES oval mufflers. (i know a guy who can weld)

as far as valve adjustment...that is good information.

i have them fairly tight, in fact, once tighted down to a "slight" drag on the 10, if i pull the 10 back out, i cant put it back in.

[owequitit]

That is too tight on the valves. That will definitely effect below 3K.

Also, make sure it is a 90-91 EX manifold. The 92-93 is different and is not as good.

[93cb7sedan]

it was my first valve adjustment ever, so ill give it another shot. thanks for all the info. I will keep it updated

[WarAccord]

i said it in there somewhere.

its a manual no auto POS for me

im gonna redo my valve clearances and work on a new cat and catback.


question tho, should i get a high flow cat and a catback system?

or just stick to OEM cat and get a catback system?

2.25 inch piping of course,

Yeah, get the High flow cat. plus if you go on Ebay they are relatively cheaper then most places. OR if your crazy you can take your own Catallatic converter and a good size Flat head screw driver and dig out the honey combs. < something I have heard people doing. I wouldn't. You can get a High flow probly for 20 bills.

[93cb7sedan]

high flows from ebay....they are just test pipes...they dont have catalysts in them, or so ive heard. that will produce a sound that im not too fond of

[accord91lx]

That is too tight on the valves. That will definitely effect below 3K.

Also, make sure it is a 90-91 EX manifold. The 92-93 is different and is not as good.

QFT... 90-91 EX is an actual header...........the rest are manifolds.

[jhondayaaj]

i just hope that when you did the timing belt, you aligned the timing marks on the cams, crank, balancer shaft and the oil drive gear.

[F22-GURU]

i just hope that when you did the timing belt, you aligned the timing marks on the cams, crank, balancer shaft and the oil drive gear.

I've just read through this thread and I'm surprised no one else suggested this even though he has done 10K on it.
What is The Intake Vacuum Reading like?
Do you have a steady or fluctuating Vacuum Gauge Reading?
What is the Fuel Pressure? High or Low?
Have you done a Compression Test?
If so, What are the results??
Was the Timing set correctly?? (Service Connector Bridged Out?)
How long has it been like this ??
When did it start doing it ?
Has it been like this from the when you bought it?
Were you driving it before doing the timing belt to compare the difference.?
Why was the timing belt replaced? Regular Maintenance or Broken??
It may have jumped a tooth ???

All these things need to be known otherwise we are just guessing.
It makes it a hell of a lot easier to diagnose with all this info on hand.

[93cb7sedan]

What is The Intake Vacuum Reading like?

-i dont know what you mean, i am still learning about cars.

Do you have a steady or fluctuating Vacuum Gauge Reading?

-same as 1

What is the Fuel Pressure? High or Low?

-havent checked yet, dont have a gauge

Have you done a Compression Test?

-no but i need to,

Was the Timing set correctly?? (Service Connector Bridged Out?)

i havent had it checked (the owner before me had a shop do timing belt and timing.

How long has it been like this ??

-i dont remember it doing it before my valve adjustment, but i never really drove the car, my friend drove it back from where we bough it, and i needed a car so bad, when i test drove this one, it was "good enough" (an hour away)

Were you driving it before doing the timing belt to compare the difference.?

i just bought car not too long ago, previous owner did it. new timing belt looks in good condition however

Why was the timing belt replaced? Regular Maintenance or Broken??

lady said regular maintenance (i asked if it broke)

It may have jumped a tooth ???

who knows, possibly.