Educated guessing time
Thread Starter
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
Educated guessing time
Hi all, I'm a bit bored today at work and all I'm thinking about is getting my car back. So, I thought I'd let you guys take a stab at a question that has my brain turning in circles.
What is the final dyno # going to be?
Here's the known:
-2004 Z06
-Proline LS2 forged 404 stroker
-244/248 mid 600 lift on a 112 LSA
-AI 243 heads on their 232cc port drilled for 3/8" rods
-FAST 92 w/ p&p LS2 tb
-Spec 3+ w/ lw fw and alum pp
-RKT built 3.90s
The car went on the dyno a couple of Wednesdays ago and the 36lb injectors were running a 105% duty cycle at 5200rpm. The engine put 490/470 to the wheels at 5200rpm and the shop shut things down after that. I'm having a Racetronix fuel pump and LS3 injectors installed shortly.
I believe the cam should run well into 6700-6800 so I've been looking into dyno sheets and I'm seeing numbers all over the place.
I thought it'd kill some time and be fun to see what other folks think the final #s will be.
What is the final dyno # going to be?
Here's the known:
-2004 Z06
-Proline LS2 forged 404 stroker
-244/248 mid 600 lift on a 112 LSA
-AI 243 heads on their 232cc port drilled for 3/8" rods
-FAST 92 w/ p&p LS2 tb
-Spec 3+ w/ lw fw and alum pp
-RKT built 3.90s
The car went on the dyno a couple of Wednesdays ago and the 36lb injectors were running a 105% duty cycle at 5200rpm. The engine put 490/470 to the wheels at 5200rpm and the shop shut things down after that. I'm having a Racetronix fuel pump and LS3 injectors installed shortly.
I believe the cam should run well into 6700-6800 so I've been looking into dyno sheets and I'm seeing numbers all over the place.
I thought it'd kill some time and be fun to see what other folks think the final #s will be.
Le Mans Master
Joined: Aug 2007
Posts: 6,474
Likes: 297
From: Orange Park FL
hi all, i'm a bit bored today at work and all i'm thinking about is getting my car back. So, i thought i'd let you guys take a stab at a question that has my brain turning in circles.
What is the final dyno # going to be?
Here's the known:
-2004 z06
-proline ls2 forged 404 stroker
-244/248 mid 600 lift on a 112 lsa
-ai 243 heads on their 232cc port drilled for 3/8" rods
-fast 92 w/ p&p ls2 tb
-spec 3+ w/ lw fw and alum pp
-rkt built 3.90s
the car went on the dyno a couple of wednesdays ago and the 36lb injectors were running a 105% duty cycle at 5200rpm. The engine put 490/470 to the wheels at 5200rpm and the shop shut things down after that. I'm having a racetronix fuel pump and ls3 injectors installed shortly.
I believe the cam should run well into 6700-6800 so i've been looking into dyno sheets and i'm seeing numbers all over the place.
I thought it'd kill some time and be fun to see what other folks think the final #s will be.
What is the final dyno # going to be?
Here's the known:
-2004 z06
-proline ls2 forged 404 stroker
-244/248 mid 600 lift on a 112 lsa
-ai 243 heads on their 232cc port drilled for 3/8" rods
-fast 92 w/ p&p ls2 tb
-spec 3+ w/ lw fw and alum pp
-rkt built 3.90s
the car went on the dyno a couple of wednesdays ago and the 36lb injectors were running a 105% duty cycle at 5200rpm. The engine put 490/470 to the wheels at 5200rpm and the shop shut things down after that. I'm having a racetronix fuel pump and ls3 injectors installed shortly.
I believe the cam should run well into 6700-6800 so i've been looking into dyno sheets and i'm seeing numbers all over the place.
I thought it'd kill some time and be fun to see what other folks think the final #s will be.
Thread Starter
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
Thread Starter
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
Thanks folks keep 'em coming. If anyone has a similar build and they'd like to chime in I'm all ears. Forgot to mention that full bolt ons are part of the list too. Kind of assumed that it was a given but I've seen some builds that full bolt ons just weren't there.
Le Mans Master
Joined: Aug 2007
Posts: 6,474
Likes: 297
From: Orange Park FL
The dyno-jet read 487/434. I am @10.6 et , 132mph.
You will probably smoke some low-low tens.
Vid of idle :
http://s895.photobucket.com/user/Pit...6e665.mp4.html
Thread Starter
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
You have basically the same build as me but more cubes. I am running a 383 with AFR 225 heads, Fast 90 and a 390 gear. Cam is a little radical, but nothing close to yours. It is 232/611 on a 113 lsa.
The dyno-jet read 487/434. I am @10.6 et , 132mph.
You will probably smoke some low-low tens.
Vid of idle :
http://s895.photobucket.com/user/Pit...6e665.mp4.html
The dyno-jet read 487/434. I am @10.6 et , 132mph.
You will probably smoke some low-low tens.
Vid of idle :
http://s895.photobucket.com/user/Pit...6e665.mp4.html
Nice ETs and trap speed. I'm hoping I can drive the car into the mid tens as well. Pretty sure the car is going to be capable, but I've got to work on the driver.
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Le Mans Master
Joined: Aug 2007
Posts: 6,474
Likes: 297
From: Orange Park FL
If you can make some rentals, that would be the ideal time to make fast progress. The test\tunes rarely have a well prepped track (however, all my best times so far have been at test\tunes) and sometimes you might only get 2-3 runs from all the break downs.
Good luck and keep us filled in on your data.
Thread Starter
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
I certainly will. Hopefully the wait isn't too much longer. The fuel system should be fairly easy to replace. The trouble is the car has developed a whine in the drive train at cruising speed. Strange since the diff is a nearly new build from RKT and the transmission is shifting just fine. I'm leaning towards something in the torque tube or perhaps something let loose in the diff. I'll know soon enough I guess.