Super with stackedhead gaskets

[Feetsbig]

Ha s any one run a supercharger with stacked gskts? I have a custom 04 RX1 MTN with a rear MCX,Rode a RX with a super and LOVE the throtle response.Thinking of swithing to super BUT really dont want to have to run 50/50 race fuel. Also,has anyone run a BOV on a super? It seems to keep going for a bit after u release the throttle.I dont need any more help running into trees!!

 

[TurboJamie]

If I were to do another supercharger I would do a head shim along with a stage II at 10+ psi.

 

[kaj]

If I were to do another supercharger I would do a head shim along with a stage II at 10+ psi.

Me to.

 

[Srxspec]

Bossman on here has a supercharger on an Apex running 26/22 pulleys and 3 stock head gaskets.

 

[SoCoRX1]

I can input on the BOV. Its not something required, but it does help. I have seen a couple blowers running a BOV and some not.

 

[Bossman]

As Allen mentioned I have triple head gaskets and run pump gas at sea level. Even with the head gaskets the throttle response is incredible.

 

[FAMILYMAN]

I would do the head shim. Stacking the gaskets just didnt work for me. The head shim works perfectly.

 

[FAMILYMAN]

I would do the head shim. Stacking the gaskets just didnt work for me. The head shim works perfectly.

 

[Feetsbig]

I would do the head shim. Stacking the gaskets just didnt work for me. The head shim works perfectly.

How much of a shim[thickness] are you using?How much boost are you running at what elevation? Are you mixing race fuel or straight pump fuel?

 

[Feetsbig]

anyone using a blow off valve on their supercharger?

 

[summitking]

SLED

There was a thread on puting a blow off valve on a SC i think it was Hammer who did it .

 

[Sterling]

I have a bov on my 05 mtn. there is no run on when you close the throttle and the sled runs just as good as stock except you had better be hangin on when you grip it. I have been sledding for some thirty years now and I have never had a machine that is as much fun as this one. The super took an ok sled and turned it into something that has to be ridden to be believed. I know there are turbos out there with more jam than mine but I have had zero issues since my install. I put in 50/50 c-12 and pump premium and run 10-12 pounds boost all day. All my setup (clutching,jetting) was just a search button click away on this site, but for whoever is interested here goes; 127.5 mains stock pilots, needle in middle slot, 2.0 turns on fuel screw. Supertip weights with two tungstens in heel, three washers in middle(each side so six total), yamaha yellow green yellow primary spring, 8DN belt shockwave helix at about a turn and a quarter out and white secondary spring at 70 degrees. Engages at about 3500 and pulls at about 98-9900 till about 50 mph where it settles back to about 95-9600 until it runs out of gear (21-40) at about 90 or so indicated. From there on up it starts building rpm and boost and I've never had the guts to go any farther. This thing rocks and after all the years of pipes,heads reeds doohickeys and other two joke gadgets I will honestly say I ain't goin back!! I know mine is heavy and a little outdated but I could care less, I'm having a ball this winter!

 

[SPEED]

I run a BOV on my S/C, It is a turbo sx valve It is open right off idle and pops closed around 7500 rpm. I am going to install a vortech valve next year as I believe it will be a little more consistent in operation . The sx valve leaks a little and tends to freeze up and stick on occasion. I have ran with and without one and highly recommend running with. I am at sea-level and do not have any experience at elevation, Hammer runs the same valves as far as I know is having good luck with them at higher elevations

 

[KnappAttack]

Use the vortech bypass valve. Nothing wrong with 3 headgaskets. Just follow Teds tq. specs. If you dont increase tq. on headstuds it will leak. Head shim, in my opinion, takes out too much comp. for flatlanders. 3 apex headgaskets makes for 10.3:1 comp. Pretty good # for 12 lbs. boost with 92 octane fuel for flatland running as long as you have a efficient intercooler and added cooling.