Reply With QuoteWhat compression and timing are you starting with?
November 25, 2003
Hello everyone
Just wanted to know if there is somebody out there who can give more help on what is a safe level of boost to run on gas
According to Kuhl Blowers, they do not recommend more than 20psi on gas.
What is your highest psi without "Melt-down"
That is with a roots type:yuk:
Willis
What compression and timing are you starting with?
16 psi with 8:1. No problems. Switched to alcohol now.
Too many variables.
First and most important - What octane gas?
Compression ratio?
Size of blower?
Intercooled?
Iron or alum heads?
Good flowing exhaust?
Etc.
:idea:
You need to also consider what lobe seperation your cam is ground on too.That will play a part on how hard your cylinders are being packed.Willis runs injection so i think his only draw back will be blowing the superchiller core to peices.I am also considering on building a blown gas motor.
Allen,
When you build that new engine, we will be out at the rope
Will it be for next race season
Willis
hey mister board member, i voted for ya..
Willis i dont know yet.When it is time for a rebuild im thinking of going that way.Im going to start collecting parts and see what happens.I would like to beable to go to the lake and run pump gas and then boost it and run race gas.I am torn between a high comp naturally aspirated motor or a motor like yours.If i dont do a re-build before next year i will pour a decent amount of spray at my current motor after the first couple of races.I did find a pop-off valve.Im going to buy it after the holidays if he still has it.Willis are you running a hi-helix or a standard blower?
Hey!
You must know something everyone else doesn't.
Allen,
If you want to go fast, the lake parts in the race boat will slow you down.
We made some changes and looking at the low 8's, 7.0 area:yuk:
See Ya
Willis
Originally posted by Willis
If you want to go fast, the lake parts in the race boat will slow you down.
I have seen some real fast lake boats.
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