Finally got a chance to dyno the new engine
05-05-2016, 04:59 PM
#1
Le Mans Master
Thread Starter
Finally got a chance to dyno the new engine
My old setup was a 427, stock heads, QJet and a CompCam 11-213-3.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
05-05-2016, 09:03 PM
#2
Melting Slicks
Member Since: May 2002
Location: Sulphur LA
Posts: 2,686
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St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19
My old setup was a 427, stock heads, QJet and a CompCam 11-213-3.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
Neal
05-06-2016, 12:41 AM
#5
Race Director
Member Since: Jan 2000
Location: Corsicana, Tx
Posts: 12,603
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2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Get it to hook...that's an easy low-low 11 sec or high 10 sec ride!
My old 427 made 423 RWHP and trapped 123+MPH through the mufflers. Never got that magic 10 sec timeslip with it in the Vette (ran 9's in my old Camaro with some N20 though!) because I was "walking" it out of the hole to save stock axles parts...but it wailed once it was rolling.
You're going to have fun!
JIM
My old 427 made 423 RWHP and trapped 123+MPH through the mufflers. Never got that magic 10 sec timeslip with it in the Vette (ran 9's in my old Camaro with some N20 though!) because I was "walking" it out of the hole to save stock axles parts...but it wailed once it was rolling.
You're going to have fun!
JIM
05-06-2016, 12:13 PM
#8
Drifting
My old setup was a 427, stock heads, QJet and a CompCam 11-213-3.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
Kudo's to your work.
05-06-2016, 01:23 PM
#9
Le Mans Master
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
Posts: 7,098
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Nice power dd. Quite the animal now.I expect a "square motor" to have a flat(ter) power curve. I think that cam came made it "punchy" now. A wider LSA would flatten it out and broaden it more.
Thx for sharing and have some fun with it now after all that work.
05-06-2016, 02:03 PM
#10
Race Director
I'll have to check the vert out sometime, Dan.
05-06-2016, 02:50 PM
#11
Le Mans Master
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
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I don't know what u read but here's what that link said "When you spread the LSA, you move out the two most important points (intake closing and exhaust opening). This makes the cam act bigger when it is ground on a wider lobe separation. Likewise, a narrower lobe separation moves the IC and EO points closer together, making the cam act slightly smaller. Hence, the 107 LSA cam was better at low rpm and the 113 LSA cam was worse at low rpm. This motor liked the overlap.".
"The 113 LSA cam may have made more power at high-rpm, but we ran into valve bounce issues with our hydraulic roller motor at 6,600 rpm, so we weren't able to find out. In most cases, though, the power given up on the lower end wouldn't have been worth the bit we gained near 7,000 rpm."
So I guess I can say thx for your support.:-)
"The 113 LSA cam may have made more power at high-rpm, but we ran into valve bounce issues with our hydraulic roller motor at 6,600 rpm, so we weren't able to find out. In most cases, though, the power given up on the lower end wouldn't have been worth the bit we gained near 7,000 rpm."
So I guess I can say thx for your support.:-)
05-06-2016, 03:29 PM
#12
Le Mans Master
Thread Starter
I can't comment on the wide LSA stuff but when I read David Vizards book he is clear that for the Edelbrock heads a tighter LSA by 2 points gets back the peak TQ to match the other larger valve heads.
Videos as promised.
Videos as promised.
05-06-2016, 05:27 PM
#16
Drifting
The " air compressor" we all like to drive no matter what brand creates demand in 2 ways...CID and intended RPM range. The induction and exhaust are lungs and disposal of the compressor. Depending on what the lungs and can do the disposal to meet the demands of the compressor then the cam, "Brain" of the engine can be determined. The brains points are where we start and stop (Events), how long (duration) and how far (lift) the journey needs to satisfy the demands. At the END of the day LSA is a sum of all this math. Marketing departments used LSA to market cams...it doesn't have anything to do with anything. Same engine CID same rpm range....the head flow numbers on intake and exhaust tell the cam what it needs to do at the end of the day the LSA will be what it is going to be.
05-06-2016, 09:55 PM
#17
Le Mans Master
My old setup was a 427, stock heads, QJet and a CompCam 11-213-3.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
It made 330RWHP and 400RWTQ on a Dynojet.
Today after spending hours with a wideband setting up the QF 830 I went to a place that dyno tunes to see if they could do any better.
It made 438 RWHP and 509 RWTQ on a Superflow dyno.
It broke down like this.
The LS6 intake needs to go but I'm happy with it for now.
To recap
Eagle 496, Mahle Pistons
Edelbrock E-Street heads "103CC when done"
Chris Straub 229/235 .590/.559 107
Morel Street Lifters
I'll get the dyno run on youtube here soon.
Remember your SuperFlow dyno reads 8% lower then a Dynojet on average. The SF software actually has a DJ correction factor built into their software, the dyno guy can print you a chart in "DJWHP". You are likely making 460-470 rwhp in DJ numbers... So 130-140 rwhp more then your 427 made...
Damn good numbers for such a mild combo. Looks like it works well.
05-06-2016, 10:42 PM
#18
Dr. Detroit
Member Since: Mar 2012
Location: New Braunfels Texas
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Sounds great......awesome torque.
Beautiful rearend setup too....
Love that 496 stomp....
Bring it down here and I'll run you
And Straub is right about the LSA.....it is a result of the lobes, the area under the curve of these lobes, the ramps and of course duration @ .050.
Thank you for spelling that out as this always get lost in translation.
Jebby
Beautiful rearend setup too....
Love that 496 stomp....
Bring it down here and I'll run you
And Straub is right about the LSA.....it is a result of the lobes, the area under the curve of these lobes, the ramps and of course duration @ .050.
Thank you for spelling that out as this always get lost in translation.
Jebby
