L92 DynoJet Numbers Plus Plan B, C, D, E and F...
08-08-2008, 12:42 PM
#501
Not much new news.
I haven't spoken with Ed for a couple of days. The last thing he did was pull everything forward of the TB to see if the vacuum would go down. It did a little and made a little difference on the dyno. We decided to wait on one of the new manifolds before I dropped more coin into a 95mm TB and 100mm MAF since it probably wouldn't make enough difference using the L76 intake. We really didn't change much this time. We traded some intake duration for area by backing off the duration and going to more lift on both sides. After three cams, you can lay the graphs over each other and the power curve is almost identical and power on the last two ended up very close.
Hopefully, this winter we'll see FAST or Weind deliver a composite intake for these builds. Until then it doesn't appear you're going to overcome that limitation no matter how you cam.
Last I heard Ed was doing some street tuning and reports the drivability even better than before which was already great.
Ed is bringing the car up to Northern VA tomorrow for a cruise in in Manassas. I'll meet him there.
This is a post from SideStep who rode in the car before the last changes and what this car has always been about. I think this has ended up just another small iteration of the build.
"I just road in this car...
Of all the rides I have been in this is absolutely the most mechanically quiet. I simply don't understand it, 13 degrees overlap and the steering wheel was not shaking at all at idle. You hear the car from the exhaust, not from under the hood...
Throttle response was brutal and rolling through 3rd gear flat puts your *** in the seat.
I was one of the original skeptics from earlier posts and I am not afraid to admit I am now eating crow about this.
Absolutely the most civilized 510rwhp I have ever experienced... Props to all those involved"
I haven't spoken with Ed for a couple of days. The last thing he did was pull everything forward of the TB to see if the vacuum would go down. It did a little and made a little difference on the dyno. We decided to wait on one of the new manifolds before I dropped more coin into a 95mm TB and 100mm MAF since it probably wouldn't make enough difference using the L76 intake. We really didn't change much this time. We traded some intake duration for area by backing off the duration and going to more lift on both sides. After three cams, you can lay the graphs over each other and the power curve is almost identical and power on the last two ended up very close.
Hopefully, this winter we'll see FAST or Weind deliver a composite intake for these builds. Until then it doesn't appear you're going to overcome that limitation no matter how you cam.
Last I heard Ed was doing some street tuning and reports the drivability even better than before which was already great.
Ed is bringing the car up to Northern VA tomorrow for a cruise in in Manassas. I'll meet him there.
This is a post from SideStep who rode in the car before the last changes and what this car has always been about. I think this has ended up just another small iteration of the build.
"I just road in this car...
Of all the rides I have been in this is absolutely the most mechanically quiet. I simply don't understand it, 13 degrees overlap and the steering wheel was not shaking at all at idle. You hear the car from the exhaust, not from under the hood...
Throttle response was brutal and rolling through 3rd gear flat puts your *** in the seat.
I was one of the original skeptics from earlier posts and I am not afraid to admit I am now eating crow about this.
Absolutely the most civilized 510rwhp I have ever experienced... Props to all those involved"
Last edited by WKMCD; 08-08-2008 at 01:25 PM.
08-09-2008, 07:16 AM
#502
Ill add to the quitniess of the car where Ive told you that the car doesnt sound as mean as it is.
You know it's not stock and has a little something, but you dont know it's over 500 RWHP. Heck I thought it was fun as a 346CI. That's what made me install the 3.90s lol
Where's the cruise today. Im in town for the weekend?
You know it's not stock and has a little something, but you dont know it's over 500 RWHP. Heck I thought it was fun as a 346CI. That's what made me install the 3.90s lol
Where's the cruise today. Im in town for the weekend?
08-17-2008, 07:51 PM
#504
I finally made the 3 hour ride down to Ed's to pickup the car today. Ed was doing some final tuning on it and had it strapped down on his famously "unhappy" DynoJet. Ed repinned the PCM and installed a 99+ unit with it's better tuning capabilities. He also replaced a defective Racetronics fuel pump that was not picking up the last 3 gallons of gas for some reason. Ed also installed the 3rd cam (by BRE) we've had in this build along with a set of PAC's new 1521 springs. These are nitrited for longer life and good for .700 lift.
No one involved thought we'd pickup anything significant on top but thought there might be a little left under the curve. The new cam is several degrees of overlap smaller but has MUCH more lift. We traded duration for area.
This is the chart from this morning and from the last cam.
We did see improvement in the 3500-5000RPM range but the real story is the improved drivability on the new setup. From just off idle to 6800 the car pulls hard. Ed and I drove the car around Portsmouth today cruising at 20-25MPH in 3rd gear with no inkling of bucking or surging. Rolling along in 6th at 900RPM and pulling away cleanly without downshifting to pass. What has been an incredibly mild 500+ RWHP car is now even more docile with a few more ponies to boot. I got a real chance to appreciate how well the car drives on the 5 hour bumper-to-bumper beach traffic ride back from Ed's.
In testing the three cams and 2 sets of heads in this build we proved several things. The L92/LS3 builds can make good power but prefer to do it with smaller cams. Great mid-range power is to be had with moderate compression. My car is currently running 11:4. It made less power at 12:1 which limited the amount of spark lead that could be run. These heads like timing. Ed pulled mine off the dyno today at 30 degrees of lead. Ed and I agree that once you get the valve events close you're really limited strongly by the intake.
That's about all the "taking one for the team" I've got in me on this build. I think I'll wait until someone else proves one of the new intakes - if they ever come out - before I do anything else here. It's been fun but I think it's time I drive the damn car..
Thanks again Ed!
Kevin
No one involved thought we'd pickup anything significant on top but thought there might be a little left under the curve. The new cam is several degrees of overlap smaller but has MUCH more lift. We traded duration for area.
This is the chart from this morning and from the last cam.
We did see improvement in the 3500-5000RPM range but the real story is the improved drivability on the new setup. From just off idle to 6800 the car pulls hard. Ed and I drove the car around Portsmouth today cruising at 20-25MPH in 3rd gear with no inkling of bucking or surging. Rolling along in 6th at 900RPM and pulling away cleanly without downshifting to pass. What has been an incredibly mild 500+ RWHP car is now even more docile with a few more ponies to boot. I got a real chance to appreciate how well the car drives on the 5 hour bumper-to-bumper beach traffic ride back from Ed's.
In testing the three cams and 2 sets of heads in this build we proved several things. The L92/LS3 builds can make good power but prefer to do it with smaller cams. Great mid-range power is to be had with moderate compression. My car is currently running 11:4. It made less power at 12:1 which limited the amount of spark lead that could be run. These heads like timing. Ed pulled mine off the dyno today at 30 degrees of lead. Ed and I agree that once you get the valve events close you're really limited strongly by the intake.
That's about all the "taking one for the team" I've got in me on this build. I think I'll wait until someone else proves one of the new intakes - if they ever come out - before I do anything else here. It's been fun but I think it's time I drive the damn car..
Thanks again Ed!
Kevin
Last edited by WKMCD; 08-18-2008 at 11:04 AM.
08-17-2008, 08:37 PM
#505
WKMCD...........I've been watching your build and all your different combos/ideas/trials and haven't said anything. Just kind've sitting back and enjoying the show and trying to gain info and advice on the same things everyone else is trying to do on this board. Just wanted to take the time to break my silence and say thanks for all your trials and information and to let you know that I and alot of others on here appreciated all your informative posts. Keep up the great work and remember the masterpiece is never quite finished!?!
Traver
Traver 
08-17-2008, 10:45 PM
#508
Nice gains Kevin. Any time you can make a gain with improved drivability is a bonus.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
08-18-2008, 04:34 AM
#509
I may have even picked up a couple of MPG but it was really hard to get a handle on that in traffic yesterday. Ed ended up leaving it in OL MAF because he didn't like the switching speed on the NB. I may throw a second PLX WB/NB (faster) setup in there - maybe not.
BTW: The SDPC SB runs clean without any smoke (even on the dyno) and burns no oil at all.
Last edited by WKMCD; 08-18-2008 at 11:24 AM.
08-18-2008, 11:04 AM
#511
The cam was "designed" by Bret Bauer of Bauer Racing Engines. I have no idea what lobes Bret used and couldn't find anything even close in the Comp catalog. Bret and I sort of agreed on what we roughly thought would work and then I got the hell out of the way and let him do his job. This is the second round for Bret and I. We both learned a lot in the 2 years since the first cam and this one is definitely a winner. I really couldn't be happier with the overall performance. It meets my needs.
Contact Bret for the exact specs.
Kevin
08-18-2008, 11:55 AM
#512
Just to set the record straight, Kevin's car put the beat down on me. LOL 
More details on that later.
I have to send out an apology to ringram, whose had an engine sitting here basically ready for assembly, for at least a couple weeks, as I got drug through the mud by Kevin's car.
Also to alohaC5, cause his car was neglected for about the same.
Many apologies to both. I feel we are getting back to normal.
I'm very happy to be done with Kevins. I learned many things along the way, alot of it I'll share here when I get more time.
Results were what I expected. The car is a very civilized, dependable, repeatable 510 rwhp car. No tricks, no "Hail Mary" run, nothing. Just an overall good combination of parts that work very well together.
Heres to the latest chapter!!
More details on that later.
I have to send out an apology to ringram, whose had an engine sitting here basically ready for assembly, for at least a couple weeks, as I got drug through the mud by Kevin's car.
Also to alohaC5, cause his car was neglected for about the same.
Many apologies to both. I feel we are getting back to normal.
I'm very happy to be done with Kevins. I learned many things along the way, alot of it I'll share here when I get more time.
Results were what I expected. The car is a very civilized, dependable, repeatable 510 rwhp car. No tricks, no "Hail Mary" run, nothing. Just an overall good combination of parts that work very well together.
Heres to the latest chapter!!
08-18-2008, 12:30 PM
#516
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Gerry,
The cam was "designed" by Bret Bauer of Bauer Racing Engines. I have no idea what lobes Bret used and couldn't find anything even close in the Comp catalog. Bret and I sort of agreed on what we roughly thought would work and then I got the hell out of the way and let him do his job. This is the second round for Bret and I. We both learned a lot in the 2 years since the first cam and this one is definitely a winner. I really couldn't be happier with the overall performance. It meets my needs.
Contact Bret for the exact specs.
Kevin
The cam was "designed" by Bret Bauer of Bauer Racing Engines. I have no idea what lobes Bret used and couldn't find anything even close in the Comp catalog. Bret and I sort of agreed on what we roughly thought would work and then I got the hell out of the way and let him do his job. This is the second round for Bret and I. We both learned a lot in the 2 years since the first cam and this one is definitely a winner. I really couldn't be happier with the overall performance. It meets my needs.
Contact Bret for the exact specs.
Kevin
Do you have an idle sound clip of the new cam?
08-18-2008, 01:00 PM
#518
My car is mechanically very quiet. I run the Z06 Ti catback. It definitely has a cam in it but the ***** aren't falling off the dash. Sitting still the view in the rear view mirror is stable...
Open the cutouts and it definitely gets nasty...
