And Penny just keeps on changing...

[TimeWarpF100]

Originally Posted by Steve1968LS2

I didn't get greedy.. we just got surprised with a really thin head gasket from RHS. Hoped it would be fine with the overlap and that dynamic would be in a sweet spot. Oh well.

Could put in the bigger cam and drop dynamic, but I don't want the bigger cam. This is the first engine I've ever "designed" that came up needing more than 91 octane, but it happens.

The HP fell before 6000 instead of after (like on the engine dyno) because the 90mm TB is starving the engine of air at that level. The 102mm should help with that.

Only looking to drop it 4/10ths of a point.. we are just outside the 91 octane range. To be honest if I lived in a 93 octane state without all the crap additives we have here in CA I would most likely be fine. Here the next step from 91 is 100.. which sucks.

Anyways, just a temp problem that can be fixed.. for now I will enjoy the sweet smeels eminating from my tailpipes..

Awesome, Awesome car Steve!

Is your Dynamic around 8.75? Estimated it by looking at your specs..

Intake closing is?

The magic number for 91 octane is what under 8.25?

[Steve1968LS2]

Originally Posted by TimeWarpF100

Awesome, Awesome car Steve!

Is your Dynamic around 8.75? Estimated it by looking at your specs..

Intake closing is?

The magic number for 91 octane is what under 8.25?

I would have to look.. static is about 11.5:1 -- which isn't bad at all. After talking with Mast we think it just needs a better tune.

Or we could put in the more aggressive cam which would lower the dynamic

And our 91 here is crap in the summer.. (and winter really)