581rwhp 508rwtq - LS7 C5 Z06 - all motor
10-02-2007, 09:36 PM
#1
581rwhp 508rwtq - LS7 C5 Z06 - all motor The DeWitts radiator oil cooler went in today - and some final drivability tuning was finished up.
Original Dyno
Well - it looks like CamZilla gets meaner as she gets older - 2300 miles later as she put down 581rwhp and 508ftlb of torque this afternoon. (and thats with 30lbs more wheel and tyre out back as well).
Current Dyno
The dyno is overlayed on my buddies "sleeper" C6 LS7 graph.
The view most Ferrari and Porsche drivers get...
Followed very shortly afterwards, by this
Original Dyno
Well - it looks like CamZilla gets meaner as she gets older - 2300 miles later as she put down 581rwhp and 508ftlb of torque this afternoon. (and thats with 30lbs more wheel and tyre out back as well).
Current Dyno
The dyno is overlayed on my buddies "sleeper" C6 LS7 graph.
The view most Ferrari and Porsche drivers get...
Followed very shortly afterwards, by this
Last edited by RC45; 10-06-2007 at 05:52 PM.
10-03-2007, 04:47 AM
#6
Teching In
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Wow. That is SO cool. I'm jealous. Congratulations.
Question: How is the low speed driveability in those 427's with big cams? Do they also buck if you slip the clutch at say 800rpm, and just let her pull along at idle in traffic. How about the cam in the sleeper car? Just curious.
Note: Did you ask MTI about the oscillations that start in your curves around 6600rpm. The power is not dropping off like a rock, so I don't think it is valve float. Maybe you need more injector?
Eh, what the heck do I know. Have fun and be safe. Congratulations.
Question: How is the low speed driveability in those 427's with big cams? Do they also buck if you slip the clutch at say 800rpm, and just let her pull along at idle in traffic. How about the cam in the sleeper car? Just curious.
Note: Did you ask MTI about the oscillations that start in your curves around 6600rpm. The power is not dropping off like a rock, so I don't think it is valve float. Maybe you need more injector?
Eh, what the heck do I know. Have fun and be safe. Congratulations.
10-03-2007, 10:33 AM
#7
Thanks - it is. You have to spin it up to really feel the power - but it is amazing how hard it pulls at 5,500 in any gear.
Thanks, but this car is way quicker than I am at the moment, so I have no doubt the times woul dbe not much better than the times I posted when it was still a 385bhp LS6
CR is 11.3:1 if I am not mistaken. And there are plans for a 200hp nitrous upgrade once 6th gear is redone from being an econo-over drive to a pulling gear.
Then maybe it will be ready for the Texas Mile and an assault on the 0-200mph time
Thanks - more insane than I ever imagined - I guess it's no longer my daily driver, but still not bad for an 85,000 mile old beater
Thanks, low speed drivability is not really any worse than when I had a crazy big cam in the 346ci LS6. I am also running a light weight flywheel - so that does oit help much, but I am able to cruise city streets at 1500rpm in 5th gear with relative ease - and if it bucks a little, just slip into 4th and raise the revs a tad.
The "Sleeper" is very deceptive - note how much torque that beast is making at 3,000rpm - you just point an dshoot that car at any revs and it is gone. Our 2 cars a clear demostrations of the differences of a "low rpm high torque" and "high rpm high torque" setup.
If my buddy wants to make a quick getaway from 40mph, he just pts his foot on the gas and the car takes off VERY fast... in fact, fast enough to pull on me - if I want to make a quick getaway I have to drop 2 gears and get the rves up to 5800 and then all hell breaks loose
I am not sure about the source of the oscillations - we are sure its not valve float though.
Thanks, but this car is way quicker than I am at the moment, so I have no doubt the times woul dbe not much better than the times I posted when it was still a 385bhp LS6
Then maybe it will be ready for the Texas Mile and an assault on the 0-200mph time
Thanks - more insane than I ever imagined - I guess it's no longer my daily driver, but still not bad for an 85,000 mile old beater
Wow. That is SO cool. I'm jealous. Congratulations.
Question: How is the low speed driveability in those 427's with big cams? Do they also buck if you slip the clutch at say 800rpm, and just let her pull along at idle in traffic. How about the cam in the sleeper car? Just curious.
Note: Did you ask MTI about the oscillations that start in your curves around 6600rpm. The power is not dropping off like a rock, so I don't think it is valve float. Maybe you need more injector?
Eh, what the heck do I know. Have fun and be safe. Congratulations.
Question: How is the low speed driveability in those 427's with big cams? Do they also buck if you slip the clutch at say 800rpm, and just let her pull along at idle in traffic. How about the cam in the sleeper car? Just curious.
Note: Did you ask MTI about the oscillations that start in your curves around 6600rpm. The power is not dropping off like a rock, so I don't think it is valve float. Maybe you need more injector?
Eh, what the heck do I know. Have fun and be safe. Congratulations.
The "Sleeper" is very deceptive - note how much torque that beast is making at 3,000rpm - you just point an dshoot that car at any revs and it is gone. Our 2 cars a clear demostrations of the differences of a "low rpm high torque" and "high rpm high torque" setup.
If my buddy wants to make a quick getaway from 40mph, he just pts his foot on the gas and the car takes off VERY fast... in fact, fast enough to pull on me - if I want to make a quick getaway I have to drop 2 gears and get the rves up to 5800 and then all hell breaks loose
I am not sure about the source of the oscillations - we are sure its not valve float though.
Last edited by RC45; 10-04-2007 at 09:36 AM.
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10-03-2007, 05:46 PM
#10
You said it Zach, MTI Power at its best 
thanks - I am very satisified with the build - it is way more car than I ever expected to get from a N/A 427.
And I guess I forgot to add that this car was dynoed in full street trim.
No dyno tricks - pump gas, regular street tyres, heavy after market C5 Z06 wheels and all accessory belts hooked up.
thanks - I am very satisified with the build - it is way more car than I ever expected to get from a N/A 427.And I guess I forgot to add that this car was dynoed in full street trim.
No dyno tricks - pump gas, regular street tyres, heavy after market C5 Z06 wheels and all accessory belts hooked up.
10-04-2007, 07:08 PM
#17
Thought so I had to search to double check.
The CamZilla bumpstick also probably has a large role to play in producing these numbers.
25x/26x/.7xx/112
http://www.youtube.com/watch?v=0SLAVmayiCk
25x/26x/.7xx/112
http://www.youtube.com/watch?v=0SLAVmayiCk
10-05-2007, 05:42 PM
#19
