Need help with dome choice on a cub.

[banshee400nut]

Just picked up this shee in pieces. the guy was goin to build it but lost intrest. i have a trinity cub with wiesco blaster pistons. i would rather not run race fuel but will if i have too. he said he told them he wanted to run 114 octane so they sent him 22cc domes packaged from pro design. i looked and found this to be the biggest set of domes for a 68mm. so what compression will these domes produce. it is a 4 mil. also where should i start on jets. i have 36mm pwk, v-force 3, toomey t-5, k&n pods at about 3000ft. any advice would be appreciated.

[firebanshee]

My cub pumped 180 at sea level with a 21cc dome

[banshee400nut]

My cub pumped 180 at sea level with a 21cc dome

what numbers are the highest for pump gas. the guy said that he had 190+ and 110 wasn't enough.

[banshee400nut]

just for curiosity sake. how reliable is this setup in the dunes.

[firebanshee]

what numbers are the highest for pump gas. the guy said that he had 190+ and 110 wasn't enough.

Around 160 psi and you should be safe for pump gas.

[firebanshee]

just for curiosity sake. how reliable is this setup in the dunes.

A 4mil cub is VERY reliable.

[banshee400nut]

A 4mil cub is VERY reliable.

thanks for the info. if yours is 180 at sea level with a 21, then a 22 at 3000ft should put me around 160 i would think.

[firebanshee]

thanks for the info. if yours is 180 at sea level with a 21, then a 22 at 3000ft should put me around 160 i would think.

Should be close

[banshee400nut]

what are the benefits to have a custom cut dome to just one from pro design. sorry for all the questions, i was a four stroke guy, i'm intrigued with these interchange domes.

[banshee400nut]

i just ordered a set of custom domes from F.A.S.T. went with a setup to run pump gas for now. jeff was very knowledgeable and a ton of help. thumbs up on service. plus he's in kansas, fast shipping.