Ls7 Ke70 Racecar Build!!

[Rob 5000]

any news from your dad, has gone to any of the races yet?

[Taz_Rx]

550cc is really a bit too big

[Mitch-12]

i know taz but they where free and don't forget I'm using E85 30-50% more fuel usage

[Mitch-12]

yeah rob nurburg 24hr just started and they came 1st in class in the spa gp 12 hr

[Rob 5000]

did u see this post http://www.rollaclub.com/board/topic/52549-eoi-supercharged-5k-ke30-3500/page__pid__535273#entry535273

[Mitch-12]

yeah its pretty mad

[Mitch-12]

hey guys how much boost untill i wreck my sc14? i need it to go fast at winton so ill keep boosting till something shits on the dyno then take 2 psi out lol so ill stop at 20psi if it handles it it will stay at it :) also i have E85 not normal ulp E85 is pretty much methanol

[SLO-030]

More about the speed your spinning them at that matters. i think they're safe up until 12-14,000rpm lobe speed untill the teflon coating begins to seperate.

[Mitch-12]

so i can spin at 2:1 and get like 30+ psi haha

[Mitch-12]

to get 15psi according to my calcs it will be underdriven i had the percentage in my head all gone now and 20psi slight over and at say 7000rpm it will be doing around 8000rpm

[SLO-030]

As long as your SC exhaust temp isnt hot enough to melt the coating. These chargers are known for having low thermal efficiency compared to other charger types (screw etc)

[Mitch-12]

so is the sc14 or the sc12 better i went the 14 so it will spin slower and create less temp theoreticaly well thats in my head haha

[Mitch-12]

wonder what temp they melt i could have a temp sensor on the boost side and have the motec operate a charger over temp warning on my dash

[SLO-030]

For my 4K. to get 7-8 psi on a 4K with SC12 it was a 79% underdrive.

[Mitch-12]

i think 1:1 with sc14 was around 15-18psi from what i worked out but i havent tested so really I'm only guessing till i see what it has