I'm the first on my block
05-06-2010, 09:17 PM
#43
I posted some idle tuning questions on HP Tuners, I made an interesting observation in the last couple of posts, with pictures:
http://www.hptuners.com/forum/showthread.php?t=28905
http://www.hptuners.com/forum/showthread.php?t=28905
05-07-2010, 02:28 PM
#44
Before and After Pics
Inlet before:
Inlet after, bad angle. It's hard to see that it is about 1/3 bigger:
Exit before:
Exit after:
You can't tell where the die grinder got away on me, can you?
Next time I have the blower off, I'm going to add an area to the TB mount and cut a slot in the throttle like the stock one.
Inlet after, bad angle. It's hard to see that it is about 1/3 bigger:
Exit before:
Exit after:
You can't tell where the die grinder got away on me, can you?
Next time I have the blower off, I'm going to add an area to the TB mount and cut a slot in the throttle like the stock one.
05-07-2010, 06:07 PM
#46
At startup, the computer was holding the IAC wide open until the engine got to like 89 degrees. It would not run when I put it in gear when it was cold, because the engine needs more air in gear, and it already was not getting enough.
To try and band-aid a fix, I cracked the throttle open a couple more degrees and did a TPS reset. Now it started and warmed up OK, but there was a terrible cruise-control effect on the road.
I can't guess why the hole is so small from FAST. It was big enough once the engine got to about 175 degrees.
I would like to see what the ports on a factory 4-bolt TB looks like.
Well I tested it this afternoon, OK so far, but whatever I did with my grinder makes a terrible sound from the IAC when it opens on a cold or cool start. It sounds like when you put a blade of grass between your thumbs and blow on it!
I guess I have to round off some of the sharp edges.
To try and band-aid a fix, I cracked the throttle open a couple more degrees and did a TPS reset. Now it started and warmed up OK, but there was a terrible cruise-control effect on the road.
I can't guess why the hole is so small from FAST. It was big enough once the engine got to about 175 degrees.
I would like to see what the ports on a factory 4-bolt TB looks like.
Well I tested it this afternoon, OK so far, but whatever I did with my grinder makes a terrible sound from the IAC when it opens on a cold or cool start. It sounds like when you put a blade of grass between your thumbs and blow on it!
I guess I have to round off some of the sharp edges.
