Pure Stock Valve Springs
 

Are we allowed to run Replacement springs even though the are higher Pressure than the spec spring? I have searched and found mixed conversations about this topic. Thanks

Re: Pure Stock Valve Springs
 

Ask Mike Baker ...
Mine use Melling VS2228. Manley has one with a similar rating.
Spec s allow us to use a Damper which adds about 10#.
Nice thing about out Blueprinted Designs.
They do not need a lot of pressure.

D

Re: Pure Stock Valve Springs
 

Since when can we use increased pressure ? Sounds fishy , Came with no damper , no damper allowed

Re: Pure Stock Valve Springs
 

It is in the NHRA specs that a Damper is allowed.
Confirmed with Mike Baker at IHRA.

Hard to find a Spring with Stock Specs.
So IHRA allow a few Springs that are close!
They do not have a lot of extra pressure. Maybe 5 lbs at best.
Dampers function is to take Resonance out of the Spring.
They add minimal spring pressure.

I understand IHRAs attempt to standardize a Spring Setting for Pure Stock.
Would like to have conversation with them and get their thinking and feedback.

PureStockDrags.com standardized on 130lbs.
It covered just about every engine variation.
If the engine specs had a higher Rating.
Which many Higher Performance engines used.
You had the choice of using the greater of the two.
It reduced tech and record keeping of every car.

They seem to have a huge following.
Would love for them to join IHRA.

Dan

Re: Pure Stock Valve Springs
 

Not disputing your word Dan ,but confirmed by phone , e mail , how ?

Re: Pure Stock Valve Springs
 

When I emailed Mike Baker about 4 months ago concerning Pure Stock springs for a 94 Mustang, he emailed me back and said to keep them at 100# on the seat, stock diameter, STYLE and size. They come without a dampener and listed as such. stock mustangs are around 80-90 on the seat, so 100 was giving it a little extra, but I understood no dampeners if it did not come that way. I would email Mike directly and verify.

Re: Pure Stock Valve Springs
 

Mine are listed with Dampers!
Looking at the NHRA spec now...Says with Damper.
Measured together are 95lbs Seat Pressure.
Jeff Warren built my engine and called Mike Baker for a proper Spring.

Contacted him recently looking at Manley Springs replacements and got his concurrence.
Will contact him again to make sure!
D

Re: Pure Stock Valve Springs
 

Got concurrence from Mike.
I am ok with having a Damper.

Dan

Re: Pure Stock Valve Springs
 

Yours had a dampener from the factory, correct? The Mustang spring does not. That, I think, is the difference.

Re: Pure Stock Valve Springs
 

I do not think so but the Spec sheet says yes!
At any rate both cannot exceed 100 lbs.

D