Official TVS Thread!!!
#8126
Senior Member
iTrader: (3)
So I pulled my valve cover too inspect my valvetrain and it looks like my rocker arms are hitting my retainers on my 75lb supertech springs
Switched from 78s to 75s to fix this problem
Dont know why I have bad clearance
Maybe when they cut my new valve seats for my .5mm valves they changed my stem height?
Works fine but I'm worried about dropping a valve if the retainer cracks
Switched from 78s to 75s to fix this problem
Dont know why I have bad clearance
Maybe when they cut my new valve seats for my .5mm valves they changed my stem height?
Works fine but I'm worried about dropping a valve if the retainer cracks
#8129
Super Moderator
iTrader: (3)
So I pulled my valve cover too inspect my valvetrain and it looks like my rocker arms are hitting my retainers on my 75lb supertech springs
Switched from 78s to 75s to fix this problem
Dont know why I have bad clearance
Maybe when they cut my new valve seats for my .5mm valves they changed my stem height?
Works fine but I'm worried about dropping a valve if the retainer cracks
Switched from 78s to 75s to fix this problem
Dont know why I have bad clearance
Maybe when they cut my new valve seats for my .5mm valves they changed my stem height?
Works fine but I'm worried about dropping a valve if the retainer cracks
anytime you grind on the seats and valves you change the stem height (and spring instlled height) so it will stick further through the fix is measure the stem height from the top of guide to top of stem before you do the valve job and write it down or try to find the stock specs
now when you do grind on the seat or valves you re measure your stem height if its to tall then you remove material from the top of the stem so you put the follower geometry back to original height and by doing that the retainers should not hit the followers if they do then just grind a little off of the sides
to fix spring installed height you need to shim the bottom of the spring
#8131
Super Moderator
iTrader: (3)
yup you can get away with it but don't go crazy
your stem height is what determines everything if its to tall(from grinding on seats and valves) then the installed spring height will be off because the stem is sticking further out which raises the retainer height and so on
your stem height is what determines everything if its to tall(from grinding on seats and valves) then the installed spring height will be off because the stem is sticking further out which raises the retainer height and so on
Last edited by mrbelvedere; 01-31-2014 at 07:57 AM.
#8135
Senior Member
![lol](https://www.cobaltss.net/forums/images/smilies/icon_lol.gif)
![lol](https://www.cobaltss.net/forums/images/smilies/icon_lol.gif)
How are those cams working out? I'm thinking of doing the NBS Delete and adding cams but I'm a little weary of it as the car has 89K miles on it and been running a TVS with a bad tune so I don't know if anything is damaged, it doesn't seem like it but what do I know.
#8141
Senior Member
iTrader: (3)
I have a 2.6 on the shelf
It needs the 5th injector even on the 2.9.
@andrew
Yeah I miss the grunt of the 2.6
Can't wait to rev it out to 8k
By 7k with the ati/2.9 I'm seeing 19 lbs
By 7k with the ati/2.9 I'm seeing 19 lbs
It needs the 5th injector even on the 2.9.
@andrew
Yeah I miss the grunt of the 2.6
Can't wait to rev it out to 8k
By 7k with the ati/2.9 I'm seeing 19 lbs
By 7k with the ati/2.9 I'm seeing 19 lbs
Last edited by 100% METH; 01-31-2014 at 10:29 PM. Reason: Automerged Doublepost
#8147
It allows u to run small injectors and maintain good deivability and make a ton of power. It also cools the blower by having a liquid going through it and attempt to pull the heat out.
I messed with it in the past wen I ran NOS. Seemed to work well.
Steve should be able to perfect the tuning of it and show some good proof.
I messed with it in the past wen I ran NOS. Seemed to work well.
Steve should be able to perfect the tuning of it and show some good proof.