Conversion Injector

[tank21pa]

What is the suggested spray angle for a ppump 24 valve running 35 degrees timing?

Thanks ahead of time Matt

 

[tank21pa]

Anyone???

 

[Smokem]

Depends on the piston bowl width.

 

[BgBlDodge]

I'm going to assume he's talking stock VP piston.

 

[ILLINOISRAM]

Depends on the piston bowl width.

what about stock pistons?

What about stock pistons with .120 shaved off the top?

Tim

 

[roachie]

HO and SO pistons are different too. IIRC.

 

[RonA]

Just squeeze the end of the injector in a collet to tighten up the pattern, or use a bowl flaring tool to open up the bowl.

 

[tank21pa]

Stock sovp bowl. I am wondering what it is without changing bowl width.

Thanks

 

[NEsmoker]

With stock so pistons and an average set of aftermarket vp injectors in a p pump conversion, how many degrees of timing can you advance befor your getting out of the bowl with the spray pattern? Im gonna be in the same boat. Planning on running in the 30s for timing also.

 

[Smokem]

What about stock pistons with .120 shaved off the top?

Get different pistons.

Stock sovp bowl.

140°

 

[Smokem]

With stock SO pistons and an average set of aftermarket VP injectors in a P-pump conversion, how many degrees of timing can you advance before you are getting out of the bowl with the spray pattern?

~26°

 

[tank21pa]

140°

Thanks Weston

 

[Smokem]

Thanks Weston

No problem, I'm looking into the pattern and compression spring issue.

 

[NEsmoker]

Thanks Smokem

 

[ILLINOISRAM]

Get different pistons.

Like what? Are you talkin cummins applications or something like Aries pistons? If your talkin Aries then how about you front me with a sponsership.LOL

 

[Smokem]

Cummins application, with 0.120" off the top, good luck running anything over 20° static with 153° nozzles.

 

[tank21pa]

What about bar and lift?

 

[RonA]

Like what? Are you talkin cummins applications or something like Aries pistons? If your talkin Aries then how about you front me with a sponsership.LOL

Modifying the bowl is an option. I have no source for injectors so the bowl has to be modified to fit what's available. Adding a few mm's to the bowl on the CNC lathe(bowl flaring tool) is rather simple. The stock piston has the steel insert for the top ring(good to have).

 

[Smokem]

What about bar and lift?

Subjective.

Modifying the bowl is an option. Adding a few mm's to the bowl on the CNC lathe(bowl flaring tool) is rather simple.

There you go.

 

[ILLINOISRAM]

Ok smokem, the cam requires .120 valve reliefs and im lookin for around 14 to 1 compression. Would just the valve reliefs get me there and still allow 35 degrees timing with the right 140* injectors?

Tim