Frustrating can't find right thread pitch - Lateral-g Forums

XLexusTech · #1 10-08-2016, 02:13 PM

Anyone know the thread pitch for a c4 c5 corvette steering rack? Pressure and return?
i can tell you M16 1.5 and m 18 1.5 is not the right thread ...

Low and behold it's a Ford rack in my Ch envy

raustinss · #2 10-09-2016, 04:56 AM

Thread pitch gauge ..? .... Could be fine thread metric too

XLexusTech · #3 10-09-2016, 05:47 AM

Quote:

Originally Posted by raustinss

Thread pitch gauge ..? .... Could be fine thread metric too

Yeah I can't find my kit but I am looking turns out I have a Ford rack... now I have to figure out if it's mustang 2 SAE threads or 84 to 97 which is metric... then figure out the fight Oring .... if anyone here has a JRS setup and has been down this road please post

randy · #4 10-09-2016, 06:37 AM

Thought you had a dse rack?

XLexusTech · #5 10-09-2016, 08:38 AM

Quote:

Originally Posted by randy

Thought you had a dse rack?

I thought my entire setup was based off a corvette ... turns out the mustang rack has really convienant mounting boss s built in so builders use them frequently.....

M 14 m16 X 1.5 fit although the M16 threads on the rack need some love appear to be munged up, prob from overt tightening prior to me getting it

XLexusTech · #6 10-09-2016, 08:57 AM

Ordered.. now sine all my research yielded more issues .. I need to figure out if I need a pressure reducer ....

XLexusTech · #7 10-09-2016, 03:37 PM

So I read about 20 threads on this subject anyone know if this will work with the vintage air ps pump?

https://www.summitracing.com/parts/bsp-rp1300/overview/

XLexusTech · #8 10-10-2016, 07:52 AM

Ordered an inline adjustable https://www.summitracing.com/parts/hdt-ps-101

dontlifttoshift · #9 10-10-2016, 10:37 AM

Cancel the order for the Heidts valve. It doesn't work and adds 8 more potential leaks. The flow control valve you pictured earlier is the right answer.

You want to limit volume, not pressure. The adjustable valve just bleeds pressure into the return hose and by the time you turn it down enough, you will have little assist at slow speeds.

The MII rack wants about 2 gpm and most GM pumps are 3 or more. The flow valves are just a fixed orifice of differing sizes. The 2 gpm has a smaller hole than the 3gpm.

XLexusTech · #10 10-10-2016, 12:23 PM

Quote:

Originally Posted by dontlifttoshift

Cancel the order for the Heidts valve. It doesn't work and adds 8 more potential leaks. The flow control valve you pictured earlier is the right answer.

You want to limit volume, not pressure. The adjustable valve just bleeds pressure into the return hose and by the time you turn it down enough, you will have little assist at slow speeds.

The MII rack wants about 2 gpm and most GM pumps are 3 or more. The flow valves are just a fixed orifice of differing sizes. The 2 gpm has a smaller hole than the 3gpm.

Thanks for the heads up researching now since the part shipped... I called summit to ask about the valve and they sold me the hedits one