I have a few ?’s about what I should do next.. As of right now my GSR motor is using Spoon ITR pistons, JDM CTR cams with ITR outer valve springs with Portflow inner springs and tit retainers. A Skunk2 IM with a ITR TB, run by a chipped P28 Mugen and VAFC. Now I want to go with SK2 Stage 2 cams, but will I have to upgrade my valve train with Sk2 springs and retainers, also should I upgrade my LMA with the ITR ones?

 

I say just upgrade the valvesrpings to the Skunk2 ones and you'll be set.

People run the Stage2s all day without swaping out the LMA's and have no problems.

 

if the ITR outer are the same spring rate and can hold the same lift without binding as the portflow outers, then you are fine. if there is a differance, change to the portflow.since you already have the inners. your motor would run strong with some stage 2's.

sorry, i couldnt figure out the acronymn for LMA either???

 

lost motion assembly. Im pretty sure taht your valvetrain is good enough. But if you want to change it up to you. if so i might buy your old stuff. i dont know too much about lma's but have heard that it is only added protection and its all up to u really. but not sure about that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by letholone &raquo;</TD></TR><TR><TD CLASS="quote">
sorry, i couldnt figure out the acronymn for LMA either???</TD></TR></TABLE>

Lost Motion Asembly

 

thanks...

a few close friends of mine run both the skunk2 and the jun3 and none of them have ever replaced that. and they have seen 9800 shifts often

i woudlnt think you would need to either.

 

You will be fine to 8,500ish if you drop those cams in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr Milano &raquo;</TD></TR><TR><TD CLASS="quote">You will be fine to 8,500ish if you drop those cams in.</TD></TR></TABLE>

I rev to 8400 with my stock GSR cams.

 

Neat. Are you running Stage 2 skunks? Thanks for the info.

 

Ok I found the valve settings for Sk2 Stage2 cams. But are these settings for any internal mods done to B motor's??

VAVLE SETTINGS
Lash the valves to stock settings on a cold motor
INTAKE: 0.007in.
EXHAUST: 0.008in.

 

Most cams use stock specs. Toda wants you to set both intake and exhaust valves to 0.2mm. Just go with what the manufacturer of the cams recommends.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CTR94Joes &raquo;</TD></TR><TR><TD CLASS="quote">I have a few ?’s about what I should do next.. As of right now my GSR motor is using Spoon ITR pistons, JDM CTR cams with ITR outer valve springs with Portflow inner springs and tit retainers. A Skunk2 IM with a ITR TB, run by a chipped P28 Mugen and VAFC. Now I want to go with SK2 Stage 2 cams, but will I have to upgrade my valve train with Sk2 springs and retainers, also should I upgrade my LMA with the ITR ones? </TD></TR></TABLE>

I am currently runnig stage 2's with itr outers with portflow inners and have had no problems at all. I have had these cams in for about a year and a half. I have taken my car to 9+ a couple of times.

As far a valve lash I set them to stock specs.

Marc P

 

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

I am currently runnig stage 2's with itr outers with portflow inners and have had no problems at all. I have had these cams in for about a year and a half. I have taken my car to 9+ a couple of times.

As far a valve lash I set them to stock specs.

Marc P</TD></TR></TABLE>

Thanks Marc P your info is just what I was looking for. Looks like i'll be getting the SK2's very soon. Hey did you change your injectors or fuel pump by the way? I already have Rc's 310 and a walbro 190 just sitting around the house.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CTR94Joes &raquo;</TD></TR><TR><TD CLASS="quote">I have a few ?’s about what I should do next.. As of right now my GSR motor is using Spoon ITR pistons, JDM CTR cams with ITR outer valve springs with Portflow inner springs and tit retainers. A Skunk2 IM with a ITR TB, run by a chipped P28 Mugen and VAFC. Now I want to go with SK2 Stage 2 cams, but will I have to upgrade my valve train with Sk2 springs and retainers, also should I upgrade my LMA with the ITR ones? </TD></TR></TABLE>

It looks like you have dealt with portflow before since you have there valve springs. Just call Tom, and ask him.

 

The skunk 2 cams are recommended by skunk to use aftermarket valve train (Jun-what i have, Skunk 2, Portflow..etc..) with my stock intake manifold i make power to 8400rpm(ITR cams make power to about 7800rpm) before the horespower starts to drop.

goto Portflow and get their complete valvetrain and that will work no problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CTR94Joes &raquo;</TD></TR><TR><TD CLASS="quote">

Thanks Marc P your info is just what I was looking for. Looks like i'll be getting the SK2's very soon. Hey did you change your injectors or fuel pump by the way? I already have Rc's 310 and a walbro 190 just sitting around the house. </TD></TR></TABLE>

stock injectors and walbro 190 pump

make sure you get a good header and exhaust, you will also use a short ram intake with sk2's.

 

Uhh why not cold air?

 

what compression are u running with the skunk 2 stage 2 cams? do u think 10.5 to 1 will work well with these cams?

 

Revving over 8500 with stock valvesprings will get you valvefloat. You shuld be safe up to there but anything more and it is recommended to upgrade the valvetrain or a least the valvesprings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 631 Teggy &raquo;</TD></TR><TR><TD CLASS="quote">Uhh why not cold air?</TD></TR></TABLE>


This needed so much air, that my cold air lost horsepower.
But, it might be different with yours setup.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 12secB18acivic &raquo;</TD></TR><TR><TD CLASS="quote">what compression are u running with the skunk 2 stage 2 cams? do u think 10.5 to 1 will work well with these cams?</TD></TR></TABLE>


I am running 11.4 comp, I think 10.5 will work, but higher you go the more the cams will like it.

 

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

stock injectors and walbro 190 pump

make sure you get a good header and exhaust, you will also use a short ram intake with sk2's.</TD></TR></TABLE>

I have headers, exhaust, and a short ram already on my setup as it is now. I just wanna change my CTR cams to something with a little more power band.

As for a Cold air intake, that's a no no in my books, i'm not going through that again. On my 96 Ex I sucked up some water and boom, there goes my motor.

 

CTR joe