Ah, you must live in Torrance! That is their Hawaiian Paradise Cake
I've seen the guava chiffon cake recipe online.
They have recipes at their website for lots off desserts , but not for that one, of course.
Here is a recipe I found online that someone was duplicating.... along with pictures and her notes:
This recipe should be halved, as it makes A LOT of cake. you'll need make three batches of the recipe, but for each layer switch to the appropriate frozen juice concentrate. if you can't find the frozen juice concentrate, look for the fruit pulp or juice at mexican grocery stores. if you can't find that, any sort of frozen fruit juice concentrate will work (try those bacardi non-alcoholic mixers too)
GUAVA CHIFFON CAKE
Bullet Batter:
2-3/4 cups cake flour
2/3 cup sugar
4 teaspoons baking powder
1 teaspoon salt
1/2 cup salad oil
1/2 cup water
3/4 cup guava juice concentrate, thawed, undiluted
5 egg yolks, slightly beaten
2 teaspoons vanilla
2-3 drops red food coloring
Bullet Meringue:
7 egg whites
1/2 teaspoon cream of tartar
1/2 cup sugar
Preheat oven at 325 degrees and lightly grease the bottom of an 11-by-13-inch pan.
To make batter, sift together flour, sugar, baking powder and salt.
Make a well in the center; add oil, water, guava juice, egg yolks and vanilla. Beat with a spoon until mixture is smooth. Add food coloring. Set aside.
To make meringue, beat egg whites with cream of tartar until soft peaks form. Gradually beat in 1/2 cup sugar until stiff.
Gently fold batter into meringue until barely mixed. Pour into pan. Bake 35-40 minutes, or until a pick inserted in the center comes out clean.