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[ClearBraInstall]

Ok,

Now that I own the Soul Food Solstice, I can tell you real world experience with the car. First the car only has half of the high boost option which is the valve spring upgrade. I have yet to lower the compression with the head gasket kit. I can tell you that 93 octane is only going to net you about 12 to 13lbs of boost. Which would probably translate to about 300whp. As you mix in a little race gas, say 100 octane, you can increase the boost as follows.

93 Octane only = 13psi boost
93/100 mix (50/50 ratio) = 15 to 16 psi boost estimated 340whp
pure 100 race gas = up to 20psi boost and the 380whp. I know that they have converted a Sky to the full High Boost kit and lowered compression and they were able to get 330whp on 93 octane fuel.

One thing important to watch is spark retard. If you have a dashhawk, you can easily monitor this vital information. This is how much timing is pulled due to detonation. The car should only see about 2 to 3 degrees of spark retard under WOT conditions. Any more and you need to increase octane or lower boost. I have this setup on my dashhawk and monitor it like I monitor engine temp. Listening for audible knock is not good enough, normally you don't even hear audible knock till about 7 or 8 degrees of timing pulled and then its too late. All it takes is one bad knock and your engine is toast. So those that pay close attention to this will get many happy miles out of their boosted cars.

As far as longevity, I can only say that my car probably has had the most punishment with the track time that Bill Hahn put on it as well as my regular Autocross racing. The car now has 20K miles on it and is still going strong. I don't always run 20psi boost, I normally run the car around 15 psi.

Hope this answers your questions. As always I am sure you can call Hahn and get the info on the High Boost kit. I might just be doing that mod myself soon.

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