#1 200 #2 190 #3 205 #4 #205.. i have 10:1 pistons, car has been overheating during daytime hot weather with a/c on, only thing left to replace as far as cooling goes is radiator but i'm unsure if that will do anything, theres no coolant loss, no smoke, not burning oil or anything..

my 1/4 mph is off by 8-10mph, the car is clearly at least a second slower than it was, even during night when it does not overheat, it still feels like it hesitates when accelerate, it will still boost and pull, its just doesn't haul like you would expect with turbo..

earlier today i tried to downshift to wot, and it woudln't just go, i tried twice and it woudln't go past ~4k rpm.. rotor/cap/plugs have few thousand miles on it.. all honda oem ignition.

any ideas? i have the right fuel setup, intank fuel pump, large injectors, hondata and tuned.. ran just fine for 2 years and now this

 

Do the plugs show anything irregular? Is it losing coolant?

 

plugs look fine, no build up.. i've been watching coolant, its not loosing any

 

turbo?

 

if it is, how can i tell?

 

spooling late?

oil in charge pipes?

 

oh check the AFR

maybe injectors? do a leakdown test too

 

compression looks good. but you need to do a leak down. you could have a blown headgasket and still have good compression.

 

it could be the turbo....but first thing do a leak down test

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sketch_hs &raquo;</TD></TR><TR><TD CLASS="quote">spooling late?

oil in charge pipes?</TD></TR></TABLE>

spooling is fine, and no theres no oil.. i don't think its turbo.. my afr showing rich, and plugs didn't look like it was running lean


would cooling system pressure check be sufficient enough? or i need to do a leakdown as well? and anybody got a way to explain why the car woudln't rev up after i downshifted that one time?

 

fan blowing the right way? lol

 

Are both of your fans working and blowing the right way?

 

both fans work and blow the right direction, a/c fan blades are melted (that may possibly explain overheat and i'm going to replace the blades).. but i can't understand why my car hesitates at wot, even when in partial throttle, its not all that smooth as it used to be

 

Do a leak down test first to ensure the motor is still healthy. As far as overheating and poor performance, you might have 2 separate problems. Only thing to do would be troubleshoot them 1 at a time.

 

if it hesitates at partial throttle it could be the 02 sensor...but the ecu doesnt use the 02 sensor at WOT....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboTegB18c &raquo;</TD></TR><TR><TD CLASS="quote">Do a leak down test first to ensure the motor is still healthy. As far as overheating and poor performance, you might have 2 separate problems. Only thing to do would be troubleshoot them 1 at a time. </TD></TR></TABLE>

an update, i think i took care of overheating problem.

1. replaced melted condenser fan
2. there was an exhaust leak where dumptube connects to wastegate

so it hasn't been overheating.. it runs a bit better, but still not as strong like it used to be, i'm gonna pull the cat next to see if its clogged..