427 engine (part 2) - RHS block - Page 97

**Rich Z** · 08-12-2011, 12:16 PM

Quote:

Originally Posted by Gannet

Almost done!

I try not to think that thought. Had it too many times over the last year or more just to have the goal post pushed back a mile. I don't want to give Murphy's Law another opening to take a shot at me....

I think it's best that I remain pessimistic about this. That way, any surprises that show up will be pleasant ones.

Gannet · 08-12-2011, 08:29 PM

That's right, you're doing the right thing.

But I'm allowed to have that thought for you.

**Rich Z** · 08-12-2011, 09:20 PM

Just talked to Aaron. Everything looked good on the dyno, but there is a bit of a stumble they need to tackle that shows up on the road test at mid range rpm. Shouldn't be any big deal to straighten up. At least I hope so.

He said it appears the final number is going to be right at 650 rwhp with about 8.5 lbs of boost. Torque is about the same, but hopefully I'll get a dyno sheet when all is said and done.

There will be some final clean up to do when the tuning is all finished, so I'm not expecting to be driving it home till maybe mid week. Assuming nothing else crops up, of course. But I'm STILL going to hold off cleaning out that bay in the garage......

Damn I hope this nightmare is finally coming to an end.

mickeystoysz16 · 08-13-2011, 02:45 PM

Quote:

Originally Posted by Rich Z

He said it appears the final number is going to be right at 650 rwhp with about 8.5 lbs of boost. Torque is about the same, but hopefully I'll get a dyno sheet when all is said and done.

Rich that is awesome and everything I was hoping for while watching the saga of this build. It will be dam well worth it once it is done and you have those new polished wheels installed.

**Rich Z** · 08-15-2011, 05:28 PM

Well, they were still working on that stumbling glitch at mid rpms over the weekend but didn't get it resolved. Jim headed back home this morning and will be comparing the tune with some other tune files to see if he can pinpoint the issue. I had hoped it would be an easy fix....

So we're at the 1 yard line, apparently, but the defense is still holding the line....

Gannet · 08-16-2011, 07:06 PM

It will be an easy fix...once they find it.

**Rich Z** · 08-16-2011, 08:37 PM

From the hints I got from Aaron, I think they suspect that it is the point where boost starts to build from the turbos that is the culprit.

It was working fine with the old tune they were using, so hopefully they retained that file to look to see what the relevant tables hold as values.

shakedown067 · 08-17-2011, 10:45 AM

Man I would not EVER want Jim's job. WAY too many tables to look at for complete custom tunes. Heck, I wouldn't want to mess with my virtually stock engine tune. LOL

**Rich Z** · 08-25-2011, 05:04 PM

Nothing going on this week.

Aaron sent off the fuel injectors (which are LS9 72 lbs, 3 bar, btw) to make sure they were calibrated correctly. They just got back today.

With hurricane Irene kicking around off of the east coast of Florida, Jim is going to stay close to home base till that clears out. So quite likely he'll be back up on Tuesday.

Aaron tells me that the car WILL be finished next week, by hook or by crook. I think everyone is as tired of this as I am. I'm sure Aaron is tired of having the car living up there in his shop for so long.

But we'll just have to see. Heard the tune "the car will be done next week" MANY times over the last year. One gremlin after another kept that prediction from coming true. So I can't really say that I am at all confident that all of the gremlins have been stamped out of that car.

Gannet · 08-25-2011, 07:39 PM

Good luck!