416 L92 + ported heads. Full story plus results
03-14-2007, 12:53 PM
#1
416 L92 + ported heads. Full story plus results 10-25-06
Everyone is wondering "what" can be achieved.
I am going to try and provide that answer.
Maybe not the way everyone want's but the way I feel is a "budget" race combo.
Everything is ordered and were starting the teardown in days of the old combo.
Car being used.
2003 Silver Z06.
Project...
416 cubic inch L92 block with eagle crank.
LME another sponsor on this site is building the motor for us.
I used a overall common cam for a bigger cubic inch NA car. Cam used had a 5 degree split in duration and was a 250/255 with a 64x/64x lift and a 113LSA. Heads? TEA ported L92 heads. TEA is going to hand port these baby's for me, do a nice valve job, and throw on a dual spring kit.
Were also gonna mill the heads so we can have a 11.5:1 CR motor.
L76 intake manifold, stock GM rocker's, the new Caddy/GM lifters, LS2 timing chain, etc. Nothing custom except the heads.
Goals? My personal goal for the car is 550 and good fuel milage.
Were gonna get some good results on "what" this combo can produce on a daily driven combo. Let's hope the manifold can keep up with the heads.
Exhaust is the Pro LG LT headers with X pipe, and corsa exhaust. No cats.
93 octane of course. I am going to do my best to post the build and results so you guys can see everything, and experience this with us.
Pictures and dyno sheets will be added as the build goes foward.
I would like to thank Brian as SDPC for the help on everything so far, LME for geting a motor started for us, and TEA for porting these damn heads for us...
Everyone is wondering "what" can be achieved.
I am going to try and provide that answer.
Maybe not the way everyone want's but the way I feel is a "budget" race combo.
Everything is ordered and were starting the teardown in days of the old combo.
Car being used.
2003 Silver Z06.
Project...
416 cubic inch L92 block with eagle crank.
LME another sponsor on this site is building the motor for us.
I used a overall common cam for a bigger cubic inch NA car. Cam used had a 5 degree split in duration and was a 250/255 with a 64x/64x lift and a 113LSA. Heads? TEA ported L92 heads. TEA is going to hand port these baby's for me, do a nice valve job, and throw on a dual spring kit.
Were also gonna mill the heads so we can have a 11.5:1 CR motor.
L76 intake manifold, stock GM rocker's, the new Caddy/GM lifters, LS2 timing chain, etc. Nothing custom except the heads.
Goals? My personal goal for the car is 550 and good fuel milage.
Were gonna get some good results on "what" this combo can produce on a daily driven combo. Let's hope the manifold can keep up with the heads.
Exhaust is the Pro LG LT headers with X pipe, and corsa exhaust. No cats.
93 octane of course. I am going to do my best to post the build and results so you guys can see everything, and experience this with us.
Pictures and dyno sheets will be added as the build goes foward.
I would like to thank Brian as SDPC for the help on everything so far, LME for geting a motor started for us, and TEA for porting these damn heads for us...
Last edited by JZ'sTA; 03-14-2007 at 01:18 PM.
03-14-2007, 12:53 PM
#2
I am going to do a full cost breakdown once I have it 100%. Right now 90% has been ordered/paid for/shipped, and am just waiting for the few misc items to be billed and included in the total cost.
WAY CHEEPER then doing a 427 of similar power.
Heads will keep stock valves for the plans so far.
As far as how much porting? The heads will be hand ported as there is non CnC program for them yet. A nice valve job and some milling.
Trying to get these heads close to what the LS7 heads do.
UPDATE 11-2-06
Well we have the flow numbers for the untouched heads just as they come from GM.
I E
.100 74 54
.200 156 122
.300 226 176
.400 280 214
.500 319 231
.550 329 238
.600 332 241
.700 319
PLEASE REMEMBER TEA uses a pipe on the exhaust and their exhaust numbers are normally higher then other benches.
Intake looks very similar to what I have seen out of these heads on other benches.
More updates as I get them.
WAY CHEEPER then doing a 427 of similar power.
Heads will keep stock valves for the plans so far.
As far as how much porting? The heads will be hand ported as there is non CnC program for them yet. A nice valve job and some milling.
Trying to get these heads close to what the LS7 heads do.
UPDATE 11-2-06
Well we have the flow numbers for the untouched heads just as they come from GM.
I E
.100 74 54
.200 156 122
.300 226 176
.400 280 214
.500 319 231
.550 329 238
.600 332 241
.700 319
PLEASE REMEMBER TEA uses a pipe on the exhaust and their exhaust numbers are normally higher then other benches.
Intake looks very similar to what I have seen out of these heads on other benches.
More updates as I get them.
03-14-2007, 12:54 PM
#3
Post #3 this will be used for the dyno chart when I get it posted tonight.
Graph #1.
L92 setup.
Graph #2 L92 vs the most powerful H/C car we have had at our shop.
Graph #3 L92 vs a C5Z06 Stage 2 procharger car making 6-7 psi with aftermarket X pipe and catback
Graph #4 C6Z06 with ported LS7 intake/TB, cold air induction, 160 T stat and a full dyno tune.
To give credit where credit is due, Christian's car was used in graph #2, and a buddy Mikes car was used in graph #4 both members on here and both very good guys with very nice rides. Also A/F didn't make much of a difference HP wise. This is acturally his best pull and this was the 2nd pull of a back to back run. It didn't matter what we did to the car it out down between 546-551 every run. Every back to back pas it made more power the 2nd run but only by 1 or 2 horses. So overall this car is damn consistant.
Power falls off after 6400 or so which I feel might be the design of the manifold. I know the cam is good for more then 6400, but the good thing is this can can be shifted by 6700 and fall back into a awsome power band.
Graph #1.
L92 setup.
Graph #2 L92 vs the most powerful H/C car we have had at our shop.
Graph #3 L92 vs a C5Z06 Stage 2 procharger car making 6-7 psi with aftermarket X pipe and catback
Graph #4 C6Z06 with ported LS7 intake/TB, cold air induction, 160 T stat and a full dyno tune.
To give credit where credit is due, Christian's car was used in graph #2, and a buddy Mikes car was used in graph #4 both members on here and both very good guys with very nice rides. Also A/F didn't make much of a difference HP wise. This is acturally his best pull and this was the 2nd pull of a back to back run. It didn't matter what we did to the car it out down between 546-551 every run. Every back to back pas it made more power the 2nd run but only by 1 or 2 horses. So overall this car is damn consistant.
Power falls off after 6400 or so which I feel might be the design of the manifold. I know the cam is good for more then 6400, but the good thing is this can can be shifted by 6700 and fall back into a awsome power band.
Last edited by JZ'sTA; 03-15-2007 at 05:08 PM.
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03-14-2007, 07:51 PM
#10
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Dyno How much time will you operate the engine before putting it on the dyno? I've only got 348 miles @ 19.4 hours on my engine. I'm trying to get 1000 miles on it before applying any dyno time. But, I'm dying to find out how much power I'm making. I'll be really happy if it hits 500 RWHP/460 TQ.
03-14-2007, 08:23 PM
#11
Originally Posted by cybernco
How much time will you operate the engine before putting it on the dyno? I've only got 348 miles @ 19.4 hours on my engine. I'm trying to get 1000 miles on it before applying any dyno time. But, I'm dying to find out how much power I'm making. I'll be really happy if it hits 500 RWHP/460 TQ.
03-14-2007, 08:44 PM
#12
Originally Posted by Beast96Z
You should have been on the dyno 347 miles ago.
When I ran the dyno cells at Holley a new engine was "broke in" when it came up to temperature, but it's probably a good idea to heat cycle the springs one time before hammering on them.
How long does it take to post the graph anyway?
Last edited by Brian Tooley Racing; 03-14-2007 at 08:50 PM.
03-14-2007, 09:09 PM
#13
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Originally Posted by cybernco
How much time will you operate the engine before putting it on the dyno? I've only got 348 miles @ 19.4 hours on my engine. I'm trying to get 1000 miles on it before applying any dyno time. But, I'm dying to find out how much power I'm making. I'll be really happy if it hits 500 RWHP/460 TQ.
Dyno it man
.
03-15-2007, 02:49 AM
#16
Originally Posted by JZ'sTA
10-25-06
Everyone is wondering "what" can be achieved.
I am going to try and provide that answer.
Maybe not the way everyone want's but the way I feel is a "budget" race combo.
Everything is ordered and were starting the teardown in days of the old combo.
Car being used.
2003 Silver Z06.
Project...
416 cubic inch L92 block with eagle crank.
LME another sponsor on this site is building the motor for us.
I used a overall common cam for a bigger cubic inch NA car. Cam used had a 5 degree split in duration and was a 250/255 with a 64x/64x lift and a 113LSA. Heads? TEA ported L92 heads. TEA is going to hand port these baby's for me, do a nice valve job, and throw on a dual spring kit.
Were also gonna mill the heads so we can have a 11.5:1 CR motor.
L76 intake manifold, stock GM rocker's, the new Caddy/GM lifters, LS2 timing chain, etc. Nothing custom except the heads.
Goals? My personal goal for the car is 550 and good fuel milage.
Were gonna get some good results on "what" this combo can produce on a daily driven combo. Let's hope the manifold can keep up with the heads.
Exhaust is the Pro LG LT headers with X pipe, and corsa exhaust. No cats.
93 octane of course. I am going to do my best to post the build and results so you guys can see everything, and experience this with us.
Pictures and dyno sheets will be added as the build goes foward.
I would like to thank Brian as SDPC for the help on everything so far, LME for geting a motor started for us, and TEA for porting these damn heads for us...
Everyone is wondering "what" can be achieved.
I am going to try and provide that answer.
Maybe not the way everyone want's but the way I feel is a "budget" race combo.
Everything is ordered and were starting the teardown in days of the old combo.
Car being used.
2003 Silver Z06.
Project...
416 cubic inch L92 block with eagle crank.
LME another sponsor on this site is building the motor for us.
I used a overall common cam for a bigger cubic inch NA car. Cam used had a 5 degree split in duration and was a 250/255 with a 64x/64x lift and a 113LSA. Heads? TEA ported L92 heads. TEA is going to hand port these baby's for me, do a nice valve job, and throw on a dual spring kit.
Were also gonna mill the heads so we can have a 11.5:1 CR motor.
L76 intake manifold, stock GM rocker's, the new Caddy/GM lifters, LS2 timing chain, etc. Nothing custom except the heads.
Goals? My personal goal for the car is 550 and good fuel milage.
Were gonna get some good results on "what" this combo can produce on a daily driven combo. Let's hope the manifold can keep up with the heads.
Exhaust is the Pro LG LT headers with X pipe, and corsa exhaust. No cats.
93 octane of course. I am going to do my best to post the build and results so you guys can see everything, and experience this with us.
Pictures and dyno sheets will be added as the build goes foward.
I would like to thank Brian as SDPC for the help on everything so far, LME for geting a motor started for us, and TEA for porting these damn heads for us...
03-15-2007, 08:37 AM
#19
UPDATE. I am having some trouble geting the graphs on here without them being thumbnail size. I will continue to work on it.
I have put many pics on here before with no problems.
I do not want to make you guys wait any longer so I will give you the results without the graph.
Peak HP 551@ 6200 and 550 from 6000-6400 RPM's.
Peak TQ 507@5200 RPM's BUT MADE OVER 500 FT LBS from 4400-5600 RPM's.
Here is a breakdown until I get the graph added.
Air fuel a tad rich at 12.5-12.6 the whole run.
4000 RPM's
HP 360
TQ 470
4500 RPM's
HP 430
TQ 500
5000 RPM's
HP 475
TQ 500
5500 RPM's
HP 525
TQ 502
6000 RPM's
HP 550
TQ 480
6500 RPM's
HP 540 TQ 435
I have put many pics on here before with no problems.
I do not want to make you guys wait any longer so I will give you the results without the graph.
Peak HP 551@ 6200 and 550 from 6000-6400 RPM's.
Peak TQ 507@5200 RPM's BUT MADE OVER 500 FT LBS from 4400-5600 RPM's.
Here is a breakdown until I get the graph added.
Air fuel a tad rich at 12.5-12.6 the whole run.
4000 RPM's
HP 360
TQ 470
4500 RPM's
HP 430
TQ 500
5000 RPM's
HP 475
TQ 500
5500 RPM's
HP 525
TQ 502
6000 RPM's
HP 550
TQ 480
6500 RPM's
HP 540 TQ 435
