New valves noob Q's. - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to   Members

General Miata Chat A place to talk about anything Miata

LinkBack Thread Tools
Old 03-31-2009, 01:51 AM   #1
Junior Member
Thread Starter
Join Date: Jan 2009
Location: Tulsa Oklahoma
Posts: 97
Total Cats: 0
Default New valves noob Q's.

Hey, I just tore the head off my miata for a rebuild and since I have it in pieces I'm wanting to replace the valves and springs to refresh everything. I saw some supertech's going for upwards of 250 bucks and haven't been to the local dealer yet. Anyone have any other suggestions? Is it really worth buying these "coated flake and break resistant" valves? or will stock ones do just as well?
Madboy is offline   Reply With Quote
Old 03-31-2009, 01:54 AM   #2
Supporting Vendor
iTrader: (31)
Savington's Avatar
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 13,223
Total Cats: 784

Did you search?
Savington is online now   Reply With Quote
Old 03-31-2009, 01:56 AM   #3
Junior Member
Thread Starter
Join Date: Jan 2009
Location: Tulsa Oklahoma
Posts: 97
Total Cats: 0

Jegs(overpriced), ebay, edibach, google (for the most part) Just figured I'd pick the brains of the miata world to try to get some feedback.
Madboy is offline   Reply With Quote
Old 03-31-2009, 10:05 AM   #4
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
y8s's Avatar
Join Date: Jun 2005
Location: Fake Virginia
Posts: 18,746
Total Cats: 316

did you search the miata world?
y8s is offline   Reply With Quote
Old 03-31-2009, 10:50 AM   #5
Elite Member
iTrader: (7)
samnavy's Avatar
Join Date: Apr 2006
Posts: 5,820
Total Cats: 145

Madboy, the stock valvetrain is bulletproof to just about any horsepower level you can make on a stock bottom end up to 7200rpm. Some guys push the envelope to 7500rpm, make major power, and hope for the best... often it works out.

If you plan to turbo and make big power 300whp+, and you intend to keep the stock rev-limit of 7200rpm, and you are on a budget, then a ceramic coating of the exhaust valves is about all you need to get a good margin of safety for the odd knock event.

A valvetrain upgrade is recommended if you're going to push the rev-limit up a bit, but most guys doing that are going with full-out built motors and spending big money.

If you've got the money, buy the best you can, but I don't see anywhere in your whole post count that you even have or plan on going turbo, so stock is just fine.

Also, please fill out your profile with some basic information and put something about your car in your signature so guys don't have to search your past posts just to find out what you drive.
samnavy is offline   Reply With Quote
Old 04-01-2009, 04:43 PM   #6
Junior Member
Join Date: Sep 2008
Location: Tulsa, Oklahoma
Posts: 350
Total Cats: -1

He's just rebuilding the car at this point. There hasn't been much discussion on going FI with it, or even modifying it beyond bolt-ons (possibly porting the head).

So the stock valvetrain is good for him then? Anything recommended like viton seals or small improvements? I like the coating idea.
944obscene is offline   Reply With Quote
Old 04-01-2009, 05:12 PM   #7
Elite Member
iTrader: (39)
Zabac's Avatar
Join Date: Sep 2007
Location: High Point NC
Posts: 4,858
Total Cats: 8

If factory is good enough for 300whp, then yes, I'd say it is good for a few bolt-ons.
Don't waste your money, plenty of other places to sink it, such as suspension and tires.
Zabac is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 52 08-28-2016 04:18 AM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 03:00 PM
96 montego blue nOOb from Milwaukee Squiblez Meet and Greet 1 09-23-2015 01:50 AM
Mystery Engine Trouble. Halp,! vehicular General Miata Chat 12 09-14-2015 03:17 PM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 05:10 AM.