Knowin the fact yes but then will the itr exhaust cam be compatible with the gsr exhaust spring? Because the gsr exhaust springs was single and the itr exhaust cam work with dual. Thanks for any help. I hope it make sense because I'm kinda confuse and tired myself its so late.

 

You need to upgrade the springs too. Most people just put their intake valve springs on the exhaust side and buy a new set of ITR intake valves springs only.

 

they can drop in.

should upgrade valvetrain too.

 

With a stock redline, you should be able to use the ITR cams no problem. It's when you go over your stock redline that you'll need new valve springs.

Of course, it never hurts to upgrade the valvetrain while you're in there...

 

Not planing to up the redline. Goin turbo anyways. Just droping these in for now. Btw, when you guyz are talkin about upin the redline is that controlled by another ecu and the itr or other valvetrain is just there to keep it safe. Is this correct? How do you up the redline then? So I can drop the Itr Cams in my gsr without any problems? I don't need to buy anything extra right? I don't want to up the redline. Thanks for all the help.

 

[QUOTE]So I can drop the Itr Cams in my gsr without any problems? I don't need to buy anything extra right?QUOTE]

Did you miss my post, or ignore it?

You can put them in and they'll work. But who's to say whether the extra lift and duration will not be more wear on your stock springs than they were considered for when Honda installed them. Id leave it to Honda to let me know, myself.

Do what you want. Obviously it makes no diff.

 

you are asking to destroy your exhaust valves if you do it that way.
you will have no buffer in what your valves can do mechanically
at 10.5mm of lift and closing 10deg after top dead center.... no

besides... dont up the intake cam for boost. slow it down by using
the stock cam, use the exhaust only!! will make more power