Ronnie's NA Build

[rottenronnie]

2005 QC

Unported Street-Strikers, Unported Intake, Headers, etc.

226/228 on a 115

11:1 on pump gas

600.3/598.2 Dynojet through the auto and cats.

I think it was 387 when I bought it brand new in 2005

600.3 divided by 505 cubic inch= 1.18 hp per cubic inch through the auto. Or 1.23 hp per cubic inch IF it was through a standard... But it isn't.
Past couple of tanks 19 Imperial miles per gallon.

So the engine seems to be efficient.

Im happy with that.

[guyrobert]

Stock bottom end?

[rottenronnie]

No.

Pistons, rods, treated crank, coated Gen IV bearings, oiling mods, main caps.

Shift points currently at 6450 (likely too high for stock).

[earl lee]

When the 6 speed conversion coming?

[rottenronnie]

Originally Posted by earl lee

When the 6 speed conversion coming?

I'm thinking never...
That WOT 3-4 shift @ 125 miles per hour puts a smile on my face every time.

There's a DYNOCOM dyno facility not far from here. If I go there, I can pickup another 80-90 wheel INSTANTLY.
So... the 25-30 wheel I'm losing through the automatic now, wouldn't even matter !!

[bmxam962]

Originally Posted by rottenronnie

No.

Pistons, rods, treated crank, coated Gen IV bearings, oiling mods, main caps.

Shift points currently at 6450 (likely too high for stock).

Did I read that right that your revving yours too 6450? Can you post dyno sheet.

[rottenronnie]

Originally Posted by bmxam962

Did I read that right that your revving yours too 6450? Can you post dyno sheet.

The shift points (software) are set at 6450 WOT, that is correct. It will buzz higher than that but it works fine where it is and has good recovery between shifts.

I guess I could have them send me a printout of the pull or grab one next time i am down there.

What did you want to know..something about the power band?

[bmxam962]

Originally Posted by rottenronnie

The shift points (software) are set at 6450 WOT, that is correct. It will buzz higher than that but it works fine where it is and has good recovery between shifts.

I guess I could have them send me a printout of the pull or grab one next time i am down there.

What did you want to know..something about the power band?

Just not very many revving that high. But I am sure that has alot to do alot with your heads and cam.

[rottenronnie]

Originally Posted by bmxam962

Just not very many revving that high. But I am sure that has alot to do alot with your heads and cam.

Chris Jensen said the very same thing about the rpm. In fact ZERO other QC's he has tuned with the rpm cranked up there.

I took an arbitrary guesstimate by the way it felt driving it and had Chris set rpm limits there.

When the tranny was bagged (pretty much ALL of 2015), it would regularly bounce off of the hard-limiter at 6600. It got up there pretty quick but there's a lot of mass flying around inside the block so i thought I'd keep some reasonable rpm limits in place.

Yes, breathing is certainly part of how freely an engine wants to rev (even through cats in this case).
As it isn't an overly big camshaft, it doesn't have to rev to make power.
I wanted torque (after all, it IS a heavy pig of a truck) and it does have a VERY wide torque band.
AND, (believe it or not), decent gas mileage was also important to me and I would have liked even a bit better but it is what it is. I may have miscalculated on the Intake Closing point but I thought with the higher compression ratio it would have filled in the blank. I dunno..

But overall, everything worked out fine.

Chris (even with the 69 pound injectors) nailed a ruler-flat 13.0 at full throttle. The guy is a Master Tuner and I have the utmost respect for his abilities.

Now I'd like to get some mile per hour numbers at the track which is FAR more important to me than dyno numbers, as they can be up and down..

Have Fun...

[bmxam962]

Originally Posted by rottenronnie

Chris Jensen said the very same thing about the rpm. In fact ZERO other QC's he has tuned with the rpm cranked up there.

I took an arbitrary guesstimate by the way it felt driving it and had Chris set rpm limits there.

When the tranny was bagged (pretty much ALL of 2015), it would regularly bounce off of the hard-limiter at 6600. It got up there pretty quick but there's a lot of mass flying around inside the block so i thought I'd keep some reasonable rpm limits in place.

Yes, breathing is certainly part of how freely an engine wants to rev. As it isn't an overly big camshaft, it doesn't have to rev to make power. I wanted torque (after all, it IS a heavy pig of a truck). It does have a VERY wide torque band. AND, (believe it or not), gas mileage was also important to me.
It worked out fine.

Chris (even with the 69 pound injectors) nailed a ruler-flat 13.0 at full throttle. The guy is a Master Tuner and I have the utmost respect for his abilities.

Now I'd like to get some mile per hour numbers at the track which is FAR more important to me than dyno numbers, as they can be up and down..

Have Fun...

Thanks for your time and info. I am in the middle of an engine build now planning on revving to 6500-6600 with a procharger in a 6spd Qc. Obviously MPG is not a option for that set up