16v head plus WHAT 1mm larger valves ?

Jack · 11-10-2020, 06:08 PM

starting to do some porting work on 16v head and looks like 1mm larger valves should go in without a problem

what are you guys using for valves? before I go read threads that go nowhere...

I vaguely remember someone talking about e30 m3 engine valves

Jack · 11-11-2020, 12:21 AM

crickets

maybe this will get you talking

SkeTchy-MechAniC · 11-11-2020, 05:39 AM

KLracing sells them in a couple of sizes

culberro · 11-11-2020, 01:37 PM

If going up a size on the 16v, I'd just do the intakes.
KL Racing has some, their quality is all over the place on the 8v stuff: https://shop.klracing.se/sv/artiklar...rostfritt.html

You can also have Manley, Ferrrea, SI, etc make you custom valves. Ferrea will be about $50/valve, Manley is usually ~$40 for stainless, SI can sometimes be around $20-30 depending on what they have to do. I wouldn't hesitate to run SI valves on an NA engine btw, they held up great in the 16v rally car.

klr142 · 11-18-2020, 03:37 AM

Are your goals over 250hp for the build? Penta cams aren't going to get you there, if so.

With great porting and proper cams, Erland Cox says people are getting around 280hp with 50mm carbs/ITBs on 2.3L bottom ends still using stock valves.

SkeTchy-MechAniC · 11-18-2020, 03:41 AM

I've got the 8v KL valves in my build. Hasn't run yet but looked fine when machining. Will probably order there when i'll start building my 16v

Jack · 11-18-2020, 07:16 AM

I’m ordering some stainless valves that will have to get machined down.

klr142 · 11-18-2020, 04:55 PM

Why are you doing this?

Jack · 11-18-2020, 06:57 PM

Quote:

Originally Posted by klr142

Why are you doing this?

I don’t have a wife

What do you mean?

klr142 · 11-18-2020, 07:18 PM

First of all,

!

Second, why are you putting in larger valves? Do you have goals of 300hp with this build and aftermarket camshafts to match? Even without a wife, the stock sized valves flow plenty for most builds and are not a limitation.

Jack · 11-18-2020, 09:08 PM

Quote:

Originally Posted by klr142

First of all,

!

Second, why are you putting in larger valves? Do you have goals of 300hp with this build and aftermarket camshafts to match? Even without a wife, the stock sized valves flow plenty for most builds and are not a limitation.

bent valves on this head so while Im there .... then one thing leads to another ...

It's mostly just a technical exercise for me to see how well it does.

just getting started on #4, mostly cleaning the crappy casting marks. Might go with 6mm valves

about 1mm taken off the top and sides. The opening is restrictive but then it opens up

122power · 11-18-2020, 10:08 PM

Just get stock valves. I highly doubt youll exceed the stock potential of this head to need bigger valves. Itll be one tire fire in an amazon anyway.

Jack · 11-18-2020, 10:25 PM

Inb4 partout

Intake valves are way smaller; not sure why they did that

I don’t get why not go with bigger valves

culberro · 11-18-2020, 10:54 PM

Quote:

Originally Posted by Jack

just getting started on #1, mostly cleaning the crappy casting marks. Might go with 6mm valves

You started on cyl #4, at least going from your 2nd picture. Lol, and your 1st picture

Quote:

Originally Posted by Jack

Inb4 partout

Intake valves are way smaller; not sure why they did that

I don’t get why not go with bigger valves

Intakes are larger than the exhausts, but +1mm is a good way to go. 6mm valve stems would be sweeeeeet!

Jack · 11-18-2020, 10:55 PM

Quote:

Originally Posted by culberro

You started on cyl #4

Intakes are larger than the exhausts, but +1mm is a good way to go. 6mm valve stems would be sweeeeeet!

Lol
See someone is paying attention.

122power · 11-18-2020, 11:17 PM

Ok do et, do et

Jack · 11-18-2020, 11:36 PM

Quote:

Originally Posted by 122power

Ok do et, do et

Don’t tell me how to live my life

aristg · 11-19-2020, 01:23 AM

standard sized valves sold by klracing, l-m-r, acm mostly exhaust though

some nice threads with lots of info and links:

http://forums.turbobricks.com/showthread.php?t=244033

http://forum.savarturbo.se/viewtopic.php?t=19725

dalek · 11-19-2020, 02:14 PM

What about exhaust valves if you want to turbo? Stainless will suffice or need to go to inconel/sodium filled?

Jack · 11-19-2020, 03:05 PM

Quote:

Originally Posted by dalek

What about exhaust valves if you want to turbo? Stainless will suffice or need to go to inconel/sodium filled?

Stainless valves on both sides. I’m not going turbo with this head

11-11-2020, 05:39 AM	#3
SkeTchy-MechAniC Board Member Join Date: Jun 2020	KLracing sells them in a couple of sizes __________________ Never have i ever .... Seen a 242 with two motorcycles in the back

11-18-2020, 03:37 AM	#5
klr142 Turbo, what? Join Date: May 2004 Location: OR	Are your goals over 250hp for the build? Penta cams aren't going to get you there, if so. With great porting and proper cams, Erland Cox says people are getting around 280hp with 50mm carbs/ITBs on 2.3L bottom ends still using stock valves. __________________ Kyle - NLMGG: '91 244 NA DD/Track - General Leif: '71 142 Endurance Racecar - The General's FB page - Oregon Volvo Tuners - Died - 2014 S60 T5 - 2006 Elantra DD

11-18-2020, 10:25 PM	#13
Jack junkman Join Date: Jul 2011 Location: The Ass Cheek Of History	Inb4 partout Intake valves are way smaller; not sure why they did that I don’t get why not go with bigger valves Last edited by Jack; 11-18-2020 at 10:40 PM..

11-19-2020, 02:14 PM	#19
dalek Benchracer Tribe Join Date: Oct 2005 Location: Orange Alert, NC	What about exhaust valves if you want to turbo? Stainless will suffice or need to go to inconel/sodium filled? __________________ "you can't leave your thingy hanging in public... you can get arrested." "What's Arkansas supposed to be, Kansas for pirates?" Forg "I think I can touch the tire. Damn! I can touch the tire! That hurts!" 240Psycho (on the back seat of my 94 Jetta while I was driving to a J/Y) "Use the barbed adapter like what I use to inflate the air camping mattresses and my dates." FTF Engineering i am inspired. i will replace my windsheild... with an intercooler.swedishK Feedback!

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11-11-2020, 12:21 AM	#2
Jack junkman Join Date: Jul 2011 Location: The Ass Cheek Of History	crickets maybe this will get you talking

11-11-2020, 01:37 PM	#4
culberro Ronald Culberbone III Join Date: Feb 2010 Location: Portland, OR	If going up a size on the 16v, I'd just do the intakes. KL Racing has some, their quality is all over the place on the 8v stuff: https://shop.klracing.se/sv/artiklar...rostfritt.html You can also have Manley, Ferrrea, SI, etc make you custom valves. Ferrea will be about $50/valve, Manley is usually ~$40 for stainless, SI can sometimes be around $20-30 depending on what they have to do. I wouldn't hesitate to run SI valves on an NA engine btw, they held up great in the 16v rally car. __________________ Cult Person. Pissing in your Kool-Aid.

11-18-2020, 03:41 AM	#6
SkeTchy-MechAniC Board Member Join Date: Jun 2020	I've got the 8v KL valves in my build. Hasn't run yet but looked fine when machining. Will probably order there when i'll start building my 16v

11-18-2020, 07:16 AM	#7
Jack junkman Join Date: Jul 2011 Location: The Ass Cheek Of History	I’m ordering some stainless valves that will have to get machined down.

11-18-2020, 04:55 PM	#8
klr142 Turbo, what? Join Date: May 2004 Location: OR	Why are you doing this?

11-18-2020, 07:18 PM	#10
klr142 Turbo, what? Join Date: May 2004 Location: OR	First of all, ! Second, why are you putting in larger valves? Do you have goals of 300hp with this build and aftermarket camshafts to match? Even without a wife, the stock sized valves flow plenty for most builds and are not a limitation.

11-18-2020, 11:17 PM	#16
122power dude Join Date: Feb 2009 Location: Where have all the quad squares gone? VV,Ca	Ok do et, do et

11-19-2020, 01:23 AM	#18
aristg El Greco Capitano Join Date: Sep 2013 Location: Greece	standard sized valves sold by klracing, l-m-r, acm mostly exhaust though some nice threads with lots of info and links: http://forums.turbobricks.com/showthread.php?t=244033 http://forum.savarturbo.se/viewtopic.php?t=19725