engine trouble

[hondaman321]

so i got a d16z6 in my ef and i needed to smog it, so i reved it up to heat up the cat and i noticed that when hold the car at full throttle it goes to 7800 rpms and then looses power until i hit 4500 rpms and then the power comes back until i hit redline again. the engine sort of sounds like it bogging, but i cant figure out what could be wrong. i changed the iac and it still has the problem.

 

[mikey bottles]

its your car telling to to stop pointlessly revving to ridiculous rpms while sitting still... you should listen to it!

 

[1988hondacrxsiR1]

Could be IACV to make sure drain coolant remove hoses, remove bolts, replace o ring, clean filter and install to 9 ft lbs.
-if not the answer check for vacuum leaks near intake manifold or on purge solenoid against firewall. Any check engine light?

 

[hondaman321]

nope no check engine lights. it also has a surging rev

 

[hondaman321]

ok i found out that the problem is simply the timing and i fixed the idle by adjusting the idle adjustment screw

 

[91si]

Yea well dont ever rev your car like that again.
Well unless you like blown pistons, head, or bent vavles....
Your choice.