Is this too much spring for my combo? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 8 Old 07-08-2009, 03:21 PM Thread Starter
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Is this too much spring for my combo?

I have a 99 Cobra teksid block with Mahle 16cc pistons, probe rods all stock dimensions, a master power T70 .68AR turbo, 44mm tial wastegate with big blue 13# spring and I'm shooting for around 550rwhp. Do I have too much spring? I have a manual boost controller and a small green 5.8# spring...just not sure how much adjustment these manual controllers allow.

Any advice would be great!

Thanks!
-Jonny


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post #2 of 8 Old 07-20-2009, 10:54 PM
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id run as much spring as your comfortable using on the street. The controller wont have to work as hard and resists spiking boost better

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post #3 of 8 Old 07-21-2009, 07:51 AM Thread Starter
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Cool, thanks for the reply!

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post #4 of 8 Old 07-21-2009, 03:47 PM
 
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Go with a smaller spring.. I'd run like an 8 or 9psi spring, that way you have some room to adjust.. if your running that 13# spring your not gonna be able to run "low boost" on the street and jank it up at the track, your just stuck with whatever that spring makes.
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post #5 of 8 Old 07-21-2009, 04:05 PM Thread Starter
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Quote:
Originally Posted by ChaseGT View Post
Go with a smaller spring.. I'd run like an 8 or 9psi spring, that way you have some room to adjust.. if your running that 13# spring your not gonna be able to run "low boost" on the street and jank it up at the track, your just stuck with whatever that spring makes.

What is your combo and HP level? I'm a fan of the philosophy, you can drive a fast car slow, but you can't drive a slow car fast! I just don't want to drop to a 6# spring and not be able to adjust enough to get me where I want to be. Nor do I want to have too much spring for the 500-550 I'm looking for.

-Jonny

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post #6 of 8 Old 07-21-2009, 05:33 PM
 
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If you can a 9psi spring you can basically double that with an MBC.
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post #7 of 8 Old 07-21-2009, 06:17 PM
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I run 5psi WG springs and have made 18psi with more to go on my EBC.
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post #8 of 8 Old 07-21-2009, 06:19 PM Thread Starter
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Originally Posted by stangjumper View Post
I run 5psi WG springs and have made 18psi with more to go on my EBC.
Now that is encouraging...thanks!

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