And Penny just keeps on changing... - Page 63 - Lateral-g Forums

**Steve1968LS2** · #**621** 10-27-2010, 08:47 PM

Quote:

Originally Posted by cmraman

Back off Steve... I want it for PHR... LOL

lol.. ok, this time, but you owe me

Vegas69 · #**622** 10-27-2010, 09:10 PM

And I thought I worked on my big block alot...

I didn't know street cars ran on race gas. Looks like you got a little greedy. I know the feeling. That torque curve and engine is ridiculous. Compression and stroke are to blame, I noticed the hp fell off before 6000. I be that changes with less compression.

**Steve1968LS2** · #**623** 10-27-2010, 09:20 PM

Quote:

Originally Posted by Vegas69

And I thought I worked on my big block alot...

I didn't know street cars ran on race gas. Looks like you got a little greedy. I know the feeling. That torque curve and engine is ridiculous. Compression and stroke are to blame, I noticed the hp fell off before 6000. I be that changes with less compression.

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..

NOPANTS68 · #**624** 10-27-2010, 09:23 PM

Sounds so wicked Steve. Pretty amazing powerplant. Made me walk out to the garage and snicker at mine. lol

**tones2SS** · #**625** 10-28-2010, 08:13 AM

Very nice Steve. She looks and sounds great.

I bet you will open up some more ponies with that new TB for sure. GOOD LUCK!

**89 RS** · #**626** 10-28-2010, 08:57 PM

Cool stuff going Steve, those center caps are pretty dang cool.

bonecrrusher · #**627** 10-29-2010, 10:57 AM

Those center caps kick ass - love the new wheels...

**Matt@BOS** · #**628** 10-31-2010, 09:34 PM

...and he's off.

Dude, I have heard so much of Bad Penny over the last two days that whenever I try to relax or go to sleep I start hearing the rumbling of exhaust and the thump of a lopey engine struggling to idle coupled with the occasional rev.

Matt

Gandalf · #**629** 10-31-2010, 10:00 PM

You forgot to mention the 8hrs breathing in burned race gas!

**Steve1968LS2** · #**630** 10-31-2010, 10:08 PM

Quote:

Originally Posted by Gandalf

You forgot to mention the 8hrs breathing in burned race gas!

Yea, that was a tuning marathon.. new O2 sensors.. found a mis-installed fuse (was supposed to power the O2 heaters) and a bad MAF..

Once again I'm taking a car with 10 miles on it to SEMA.. lol.. you would think I would learn by now.

The new valley cover catch tank came out good.. and overall she's in good shape. Still tired and will be glad when it's a week from now..