OK this can be a plea for help or just a plain vent post.
First off. I ran a 60 dry shot of nitrous in 5th gear and royaly torched my motor, sheared valves, burnt valve seat, the whole nine. So I have a local machine shop that builds Korbel's drag cars rework the head, itr valves, springs, retainers, brand new guides, reworked combustion chambers, 3 angle valve job, basically bring it back to new or better.
So I'm in the clear right? Throw a set of rings on the pistons just in case, slap the head on a ready to roll. Not even close.
So one of the oil rings on #3 decides it wants to take a ****. Result? Blue smoke on hard acceleration. Solution, pull all of the pistons, buy new pistons (because maybe one is out of round) and rings, install.
So now everything is cool right? haha, I wish. So about 30 miles into my break-in I hear a very unsettling metalic noise coming from my bottom end. Rod knock you say? I say oh HELL yes! So, simple solution, I haven't lost it yet, just go buy rod bearings, and problem soved right? Nope
Install the new bearings and the knock is STILL there!
This is where I threw in the towel.
I bought a brand new 00 itr shortblock from Acura.
Problems solved right? Nothing can go wrong with a brand new bottom end right? Well, first off my friend breaks not one, not two, but three SnapOn sockets on one of my headbolts. This of course rounds out the head of the bolt. Finally get that off.
Next, Acura gives us the wrong timing belt, another extra 3 hours of work considering the belt was already on and ready to be slid onto the cam gears.
Ok now it is all on everything is perfect. We start the motor, fires on th first turn. SWEET! No abnormal noises, runs great.
Now this morning I go out to my car, start it, and a strangely familiar noise comes from my bottom end. KNOCK KNOCK KNOCK!
It goes away after about 3 seconds, none the less 3 seconds too long.

Ok I apologize for the length.

Here is the setup ANY help will be greatly appreciated.

b16a2 head:
itr valves
itr retainers
itr inner/outer springs
brand new OEM Honda guides/valve seats
b18c5 00 shortblock:
brand new oil pump/water pump
brand new everything else included on the block
Stock si tranny:
Exedy Organic clutch (street)
flywheel (3 passes lightened)
Stock si computer
Aem fuel rail
B&M FPR set at 37psi
JDM ITR header pipe
Greddy SP exhaust

Thank you in adavnce for taking the time to read this rant/post.

 

bump your fuel to 46 with vacumm line connected. now try it.

 

so it could be that I am running lean? I thought the FPR only controls the fuel flow when the car is at WOT. Doesn't the ecu compensate when not at WOT? Thank you for the input though I will try that. I will set it to 47 when warm, let it cool, then start it and see what happens.

 

no fuel pressure adjustments are global(i.e. the whole range of ur a/f part and wot)

 

Adjusted, no change, seems to be a little power loss on mid range now though. Could a bad timing belt tensioner be making the noise? I know it is bad so I ordered one, will be here tomorrow. Maybe that will solve the noise.

 

Bump. Any other ideas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sinatra &raquo;</TD></TR><TR><TD CLASS="quote">Bump. Any other ideas?</TD></TR></TABLE>

Did u get this fixed? If u hear it just when u start it, I believe it means the oil pump is going bad. Try doing a search I think I read something about this before. My last motor did this and I drove on it for over a year like that no problem. It made a rod knock noise only on startup.

 

Turns out to be a bad water pump bearing. Happens when the timing belt gets over tightened?