Is it needed to replace my valves as well or not needed. Engine has 90k on it and basic boltons I/H/E and soon to have SAFC. ANything else someone recommends to do while i'm doing this. Did timing belt/water pump like 10k miles ago. I also hear since this is an aggressive cam.. no need to really tune cam gears.. just use OEM ones. Thoughts? opinions? greatly appreciated.

- Alex

 

I have seen that most of crower's stuff is set to run at 0,0 for the ludes. If you milled the head or anything then you might look into some adj. cam gears. I have no idea what the cams peak at or what the torque curve is but I would not suggest revving past stock limit unless you balance the devil out of the bottom end and replace those main bearings. Just my opinion. Be sure to post dyno results I want to know what those H23 cams do!
the Pirate

 

would u recommend getting new valves as well (my engine is at 90k) or u think cams/retainers/springs is good enough tuned w/SAFC is good enough?? Thanks.

- Alex

 

your valves should be fine but a head rebuild might be in order. valve job, seals, guides and a thorough cleaning would help get the most longevity out of the cams.

 

If you're pulling the head I would put in H22a 10:1 pistons and bump the CR to 11:1 or so, or JDM H22a 10.6:1 and bump it to 11.5:1

The pistons are cheap and probably plentiful just get the right size bore, measure your cylinders carefully and account for the desired piston to wall clearance.

 

naww prolly not pullin' out the head... gonna jus install retainers/springs and the cams....

 

You should not seen new valves unless you are going to go with .5mm larger. When I did my H22 head up, it had 130k miles on it and all that was worn out were the exhaust guides. You will be fine with the springs and retainers and cams.
the Pirate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AlexLude &raquo;</TD></TR><TR><TD CLASS="quote">naww prolly not pullin' out the head... gonna jus install retainers/springs and the cams.... </TD></TR></TABLE>

how are you going to install springs and retainers without pulling the head?

 

i'm not a pro in this.. but i've talked to 3 techies... one @ super autobacs, my regular mechanic and one @ prostreet and they said not needed unless u change the valves. they can install springs/retainers w/o pulling out the head.

- A

 

What is the part number for the H23 cams, I cant find them on Crowers website. All that I see listed on there for H series is H22.

 

they are not on the website yet.. you will have to call crower for it..

- A

 

If you can spare the extra $$$ I'd get an adjustable fuel press. regulator as well as some adj. cam gears. The valves should be fine. I personally changed the valve-springs and retainers while the head was still on the block... I made my own custom tool.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AlexLude &raquo;</TD></TR><TR><TD CLASS="quote">they are not on the website yet.. you will have to call crower for it..</TD></TR></TABLE>

That makes sence. How much did they run you?

 

yea, how much?

 

i'll say it again... how much?

 

Compressed air in the cylinders to hold the valves up while changing out the retainers and springs is the only way that I have heard of without removing the head. What was the special tool you made aries?

 

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

how are you going to install springs and retainers without pulling the head?</TD></TR></TABLE>

remove the spark plug for the cylinder your doing and put compressed air into it, and it will hold up the valves...i've done it before..

 

Back up from May huh? I guess we never did get an update from AlexLude...

Pirate

 

yeah alexlude, lets hear the updates!!!!

 

bump for an update

 

bump

 

no news?!