Drivetrain Introducing the ALTA BOV Spring Upgrade
#28
I've had this spring for a couple months now. Jeff let me be a guinea pig =) It makes a slight but noticeable difference.
It's like the boost comes back up quicker. I don't know that it would make any difference on a dyno but you can tell a difference when driving around rowing through the gears.
For the price I'd say it's a worthy upgrade.
Somehow I missed this thread when it first came up or I would have commented already.
It's like the boost comes back up quicker. I don't know that it would make any difference on a dyno but you can tell a difference when driving around rowing through the gears.
For the price I'd say it's a worthy upgrade.
Somehow I missed this thread when it first came up or I would have commented already.
#38
I've had this spring for a couple months now. Jeff let me be a guinea pig =) It makes a slight but noticeable difference.
It's like the boost comes back up quicker. I don't know that it would make any difference on a dyno but you can tell a difference when driving around rowing through the gears.
For the price I'd say it's a worthy upgrade.
Somehow I missed this thread when it first came up or I would have commented already.
It's like the boost comes back up quicker. I don't know that it would make any difference on a dyno but you can tell a difference when driving around rowing through the gears.
For the price I'd say it's a worthy upgrade.
Somehow I missed this thread when it first came up or I would have commented already.
You're right, it won't make a difference on the dyno, since you aren't shifting. It just improves the way the car feels.
Thanks for testing the part for us!
#39
#40
Sorry, but why are you saying this again on an unqualified basis? Read back to my post #3 and your reply #5; it was confirmed before (after the post was down for a day) that JCW and S's were the same as of 2010, confirmed at the part number level.
On a JCW, the upgrade isn't quite as significant, since the JCW spring is harder than the S, so imagine the difference on a S car!
You're right, it won't make a difference on the dyno, since you aren't shifting. It just improves the way the car feels.
Thanks for testing the part for us!
You're right, it won't make a difference on the dyno, since you aren't shifting. It just improves the way the car feels.
Thanks for testing the part for us!
...
You're right, the OEM bov on the R56 S was changed in 2010 to be the JCW BOV. We designed our BOV spring to be an upgrade for the S and the JCW, so for the guys with the older R56s will get a great upgrade with the spring. Also all the JCW guys will benefit with the new spring!
You're right, the OEM bov on the R56 S was changed in 2010 to be the JCW BOV. We designed our BOV spring to be an upgrade for the S and the JCW, so for the guys with the older R56s will get a great upgrade with the spring. Also all the JCW guys will benefit with the new spring!
Last edited by MP1.6T; 03-24-2011 at 09:00 PM.
#42
#43
thats the idea, the valve closes faster so boost begins to build quicker. Ill write up on it once i get it if it ever ship lol i never got a ship notification
#46
#48
Thanks
#49
Yeah, 5mm allen for the 3 bolts, pop it out replace spring and snap it together and rebolt. Do you real good to remove the 8mm that holds the reservior tank for better access.
#50