Looking For ST-7 Cage Pictures

[Bugeye58]

Lou, I ran a single HS4 on a Spit 1500 with no mods to either the ZS manifold or carb. You will have to get a bit creative with the throttle linkage, though.
Jeff

 

[blkcorvair]

Yea Jeff you got what I meant. Just looking to run a single Carb on the original 1500 maifold. Nial runs one. But Emra only allows for a single carb on this engine.

 

[Bugeye58]

Lou, the SCCA allows just one HS4 on a 1500, too. That's the only reason I ran only one on the Spit. It was enough carb to support 138 HP.
Jeff

 

[aeronca65t]

Yep.
And SVRA and many of the other vintage have the same one-carb rule for 1500 Midgets.
Most of us just follow the SCCA GCR as regards rules. Keeps things easy.
EMRA will allow you to adapt any single carb however, as long as you use the original intake manifold. I'm using an S&S Super G (2-1/16 smoothbore with almost no venturi.....intended for racing Harleys). It's a honking carb for this application, but I'd run the SU at first, especially if you're planning on putting a1275 in at some point.
And if you don't put flares on that car (or just *tiny* ones), you can run vintage with it too. Radiused 1973-style rear fender (like mine) are fine for most vintage groups.

 

[Bugeye58]

Lou, I just remembered one mod I did to the HS4. I changed the float bowl rubber grommet to reorient the float bowl to the vertical. With the ZS manifold and an MGB HS4, the bowl is tilted.
Jeff

 

[blkcorvair]

Thanks Jeff.

 

[Bugeye58]

Lou, here's a picture of the carb on the Spit. Note the position of the float bowl.
Jeff

 

[Hap Waldrop]

I've got a variety of the flaot bowl grommets with different positionings on them.

 

[blkcorvair]

Perfect Guys, There's nothing that cant be done here!