Ryan C

My buddy recently pulled the infamous 5th to 2nd shift, therefore we will be changing the internals in his head.
(first post https://honda-tech.com/zerothread?id=548872)
So. Right now I'm thinkin Ferra valves with Crower Springs.
Any one have a setup better suited for boost.
Also as many of you know the c/r on a GS-R is 10:1.
Are there any GOOD headgaskets that I could use to lower comp a little?
The motor has like 40k on it do i need to replace seals or guides ect ect.
Thanks In Advance.

Type-GS-R-Turbo

inline pro headgaskets! I've never used them, but they claim to be able to make tegs run 11's w/ stock internals and the AFC hack. Low Compression + boost is the way to go for sure!

http://www.inlinepro.com

HEAD

I know you can't go wrong using the Ferrea valve with boost, infact I don't think there is a better choice. As far as springs I have only used the Ferrea springs because I like the fact that when you use there springs you can use there spring locaters and there keepers which are both waaaay nicer then the factory stuff.

MotorMatrix.com

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HEAD &raquo;</TD></TR><TR><TD CLASS="quote">I know you can't go wrong using the Ferrea valve with boost, infact I don't think there is a better choice. As far as springs I have only used the Ferrea springs because I like the fact that when you use there springs you can use there spring locaters and there keepers which are both waaaay nicer then the factory stuff.</TD></TR></TABLE>

very true and thats why my head is ferrea all the way!!!! also our supra head we are building for 1100rwhp will have ferrea all over it!!!

ekb18c

I like using super tech valves with web springs and retainers on our heads. They seemed to have worked great for us.

You might as well change the valves seals since you will be having the head apart.

Keep the stock compression!! 10:1 is perfect for a street applications. I'm on 10:1 running 1bar on the street daily with pump gas.

HEAD

EKb18 does chan work with you guys?

hybridsol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ryan C &raquo;</TD></TR><TR><TD CLASS="quote">So. Right now I'm thinkin Ferra valves with Crower Springs.</TD></TR></TABLE>

If you are going to all this trouble, get the oversize valve and have a 3-angle valve job done

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ryan C &raquo;</TD></TR><TR><TD CLASS="quote">Are there any GOOD headgaskets that I could use to lower comp a little?</TD></TR></TABLE>

A thicker head gasket will throw your cam timing off, be sure you have adjustable gears. Cometec makes a good gasket up to 1.9mm thick, I have one.

Sean

Ryan C

Thanks guys! I like the idea of the 100% Ferra stuff.

How difficult are the guides to replace?? Should I use OEM guides or somthin else?

Oh, and I know the cam timing will be off with a thicker gasket so do i advance, retard or both?

And anyone here can convince me that stock internals on a GSR can handle a bar i'll do it, untill then i'll just consider you really really lucky... I was under the impression that stock internals are no good after 10psi as a rule.

HEAD

guides are not that difficult to replace as long as you have the means to do so, machine shop can do it, and Ferrea also sells a bronze guide

MotorMatrix.com

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

And anyone here can convince me that stock internals on a GSR can handle a bar i'll do it, untill then i'll just consider you really really lucky... I was under the impression that stock internals are no good after 10psi as a rule. </TD></TR></TABLE>

that rule is false. plenty of people on here with well tuned cars run 14-19psi and 400-420whp. also, 10psi as rule means nothing. a tiny t25 turbo may only make 220whp at 10psi on a gsr motor and an efficient turbo might make 300-350hp. so psi is not the major factor on how much a gsr motor can handle.

Ryan C

you seem to know your ****...
i am runnin a 18G w/ RC 310's a missing link and a vortec
how high could stock guts hold ?
in your opinion of course

Sleeper in Seattle

There is a company run by a very respected member (Rocket) called ef-1; I believe the web site is: http://www.ef-1.com
Check it out or do a search for his info...


james

Ryan C

the site is hard to navigate but i like what i saw..

anyone use any of there stuff?

93LSivic

My vote goes to Ferrea as well. If you got the cash, then spend it with them. But your gonna need to work on your fuel managment if you want to turn up the boost.

Ryan C

i really want Hondata...but its too much money for me right now so I contemplating the GReddy e-manage.
what do you guys think?

FFDragger

Check out REV valvetrain. I went with their springs and retainers. If you want the best Ferrea is real nice but expensive. REV is priced just right for us racers on a budget.

APZGSR

Ryan C

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by APZGSR &raquo;</TD></TR><TR><TD CLASS="quote"> </TD></TR></TABLE>
meaning REV is good?

lazerus

this guy seems to know how to build for boost on gsr-...

https://honda-tech.com/zerothread?id=554326

Ryan C

why do they make it seem like its hard to hold 9psi on a GSR?

HEAD

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ryan C &raquo;</TD></TR><TR><TD CLASS="quote">
meaning REV is good?</TD></TR></TABLE>

rev is a decent valve, I personally wouldn't run there exhaust valve w/turbo but they are a few bucks cheaper a valve then ferrea but I guess you get what you pay for.