Dynograph of 491hp 5.3L with TF 205 heads...
06-02-2009, 11:09 PM
#1
Dynograph of 491hp 5.3L with TF 205 heads... Since I have the dyno sheets I thought I would post..
We took off the car headers and put on a set of sand rail headers.. went to 499 hp and 455 tq.. lol.. but we can't count that one.
Here's the best with the car headers.
We took off the car headers and put on a set of sand rail headers.. went to 499 hp and 455 tq.. lol.. but we can't count that one.
Here's the best with the car headers.
06-02-2009, 11:14 PM
#2
Here's what was in the engine:
5.3 block aluminum (doesn't really matter if it's iron)
4.8 flat top pistons
5.3 rods - ARP rod bolts
5.3 crank
LS2 timing chain on 5.3 sprockets
LS2 intake/injectors/fuel rail (modified by Turn Key)
90mm Turn Key throttle body
220/224 112 LSA Trick Flow cam (.575 lift)
Trick Flow 205 CNC ported heads (assembled)
Harland Sharp pedestal mount 1.7 rockers
Trick Flow 7.500 chromemoly pushrods
Correction factor was 1.046
91 octane pump gas on a Superflow 901 engine dyno. We estimate compression at around 11.5:1
Would have pulled farther but was running out of voltage at the the upper RPM (dropping to 10.8 volts).. we need a new dyno battery.
Pretty darn happy, especially with the torque curve.
5.3 block aluminum (doesn't really matter if it's iron)
4.8 flat top pistons
5.3 rods - ARP rod bolts
5.3 crank
LS2 timing chain on 5.3 sprockets
LS2 intake/injectors/fuel rail (modified by Turn Key)
90mm Turn Key throttle body
220/224 112 LSA Trick Flow cam (.575 lift)
Trick Flow 205 CNC ported heads (assembled)
Harland Sharp pedestal mount 1.7 rockers
Trick Flow 7.500 chromemoly pushrods
Correction factor was 1.046
91 octane pump gas on a Superflow 901 engine dyno. We estimate compression at around 11.5:1
Would have pulled farther but was running out of voltage at the the upper RPM (dropping to 10.8 volts).. we need a new dyno battery.
Pretty darn happy, especially with the torque curve.
06-03-2009, 01:56 AM
#7
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wow....i put a 5.3 in my car havnt got a chance to mess with it alot it also has a lil bumop in cr ported heads and a small cam....nice numbers...mine will have help from a bottle....
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06-03-2009, 06:52 AM
#10
Then why did you use "Best fit Curve" for your plotting method instead of "line"?
Looks great though, I really like the thought of how cheap and plentiful 5.3L have become. With a little work they can really put out some good power!!! What did they have to modify on the intake?? Didnt have a FAST laying around? Im not a fan of STP's inflated numbers. (4%)
When you get a new battery, get the Moroso automatic battery charger, it will solve your problem.
Looks great though, I really like the thought of how cheap and plentiful 5.3L have become. With a little work they can really put out some good power!!! What did they have to modify on the intake?? Didnt have a FAST laying around? Im not a fan of STP's inflated numbers. (4%)
When you get a new battery, get the Moroso automatic battery charger, it will solve your problem.
Last edited by SweetS10V8; 06-03-2009 at 07:05 AM.
06-03-2009, 09:10 AM
#12
Then why did you use "Best fit Curve" for your plotting method instead of "line"?
Looks great though, I really like the thought of how cheap and plentiful 5.3L have become. With a little work they can really put out some good power!!! What did they have to modify on the intake?? Didnt have a FAST laying around? Im not a fan of STP's inflated numbers. (4%)
When you get a new battery, get the Moroso automatic battery charger, it will solve your problem.
Looks great though, I really like the thought of how cheap and plentiful 5.3L have become. With a little work they can really put out some good power!!! What did they have to modify on the intake?? Didnt have a FAST laying around? Im not a fan of STP's inflated numbers. (4%)
When you get a new battery, get the Moroso automatic battery charger, it will solve your problem.
All the magazines use STP so we do it to be consistent.. in our world only the OEMs use SAE. It just corrects to a lower temp but since our correction factor was only 1.046 then it's nearly irrelevant.
Have a FAST, but it's not part of the build and a pretty expensive item for a "budget" build. Thanks for the battery tip, I will pass it on.
06-03-2009, 07:57 PM
#14
06-03-2009, 08:14 PM
#15
Gotcha..
Yup, magazines love high numbers, it sells parts. Its also exactly why chassis dyno shops like dyno jets, they give great numbers! You cant tell me you didnt have 10 minutes to throw it on just for fun?!?!?! You or your boss needs to live a little, burn a few minutes on curiosity, opps, I mean... R&D!!
Yup, magazines love high numbers, it sells parts. Its also exactly why chassis dyno shops like dyno jets, they give great numbers!
You cant tell me you didnt have 10 minutes to throw it on just for fun?!?!?! You or your boss needs to live a little, burn a few minutes on curiosity, opps, I mean... R&D!! 
1. you obviously can't read..
2. I said it's a Superflow.. not a Dynojet..
3. It's an engine dyno.. not a chassis dyno
4. Why put on a FAST unit is we're not going to use it on the final engine? Everyone knows it's makes more power than the LS2 intake.
The correction factor was 1.046 so I don't think it matter which correction factor we used...
Thanks for playing..
06-03-2009, 10:28 PM
#16
Why don't you just blow me?
1. you obviously can't read..
2. I said it's a Superflow.. not a Dynojet..
3. It's an engine dyno.. not a chassis dyno
4. Why put on a FAST unit is we're not going to use it on the final engine? Everyone knows it's makes more power than the LS2 intake.
The correction factor was 1.046 so I don't think it matter which correction factor we used...
Thanks for playing..
1. you obviously can't read..
2. I said it's a Superflow.. not a Dynojet..
3. It's an engine dyno.. not a chassis dyno
4. Why put on a FAST unit is we're not going to use it on the final engine? Everyone knows it's makes more power than the LS2 intake.
The correction factor was 1.046 so I don't think it matter which correction factor we used...
Thanks for playing..
](Its not me thats not reading...) But since you keep bringing it up, 1.046 is adding 4.6% which is 20+hp of correction. Last edited by SweetS10V8; 06-03-2009 at 10:35 PM.
06-03-2009, 11:46 PM
#17
Chill out chief, I was talking in reference to people liking higher numbers, I know exactly what I'm talking about here. The reference to magazines liking STP and "Chassis dyno shops", in general,(not you)like dynojets becasue both give you big numbers, big numbers sell parts, that's it. I don't see why your upset..](Its not me thats not reading...)
But since you keep bringing it up, 1.046 is adding 4.6% which is 20+hp of correction.
](Its not me thats not reading...) But since you keep bringing it up, 1.046 is adding 4.6% which is 20+hp of correction.
I use what they have.. most chassis shops have dynojets, but to be honest Westech has a Superflow. All of the engine dynos I use are Superflow 901 and 902s. We will dyno the car when it's done to try and "back up" the engine dyno numbers.
Besides, I was grumpy because I spent all day screwing with AN fittings.. so how about a hug? lol
06-24-2009, 10:31 PM
#20
I'm sorry but what is a "90mm Turn Key throttle body"? Is that a brand/model, if so where did you get it? I'm looking at options for 90mm cable throttle bodies.
Very impressive hp/tq curves for sure!
Very impressive hp/tq curves for sure!
