VortecPro Dyno Results and Initial Track Results - Chevelle Tech
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  #1  
Old Feb 12th, 12, 5:40 PM
JOHN WILSON JOHN WILSON is offline
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Default VortecPro Dyno Results and Initial Track Results

I had Mark build me one of his pump-gas GM oval-port 496 combo's.
Specs:
4.31x4.25 496bbc
Mahle pistons 10.8:1
Scat crank/rods
Milodon 31188 oil pan
Solid roller .731/.715 268/278@50 108lsa
GM 781 ovals 2.25x1.88
Victor Jr 454-O
Holley Aluminum Ultra-HP 950 carb




It took a couple passes to get a handle on the suspension. Seems as though the extra weight up front doesn't help keep the nose down.

1.297
3.823
6.007@112.1
7.92
9.560@136.79

The above pass was with 32 advance (37 made best numbers on dyno) and the car felt a little lean at the end of the track. So.......feeling better about the suspension settings and also running out of time, I decided to bring the timing up to 35 and threw some jet at the carb. I also tightened the front shock extension another 2 clicks hoping to counter the extra power. It wasn't enough as the car started to climb hard and I pedaled again. So as it stands, the motor is running 9.56 in "detuned" shape. I'm looking forward to playing with it over the next few months as I give the engine the timing and fuel it wants and figuring out the suspension settings to deal with the extra power. In all honesty, I see no reason it won't run a 9.3X once I get it all lined out.

Not too damn shabby for a lil ole pump-gas 496 combo using factory block and heads.

Big thanks to Mark for a solid/powerful build.

Track pic of VortecPro'd RedBull.



Also, thanks to Jake Stelter and Jason Gore for all the help yesterday and keeping my scatter-brain'd a$$ straight!!!
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  #2  
Old Feb 12th, 12, 5:48 PM
Vintage Musclecar Vintage Musclecar is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Excellent results.

How does the Milodon pan fit regarding the inner tie rods?
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  #3  
Old Feb 12th, 12, 5:50 PM
Bob West Bob West is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Thanks again John for the hospitality, had a great time. The car looks great and performs awesome, can't wait til you get that 9.3x.
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  #4  
Old Feb 12th, 12, 5:57 PM
JLerum JLerum is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Awesome picture! That's what we need this time of year seeing the front end way high. Warm weather will be here soon guys! Nice job Mark as it sounds like another killer power plant!!

Jim
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  #5  
Old Feb 12th, 12, 5:58 PM
Doug F. Doug F. is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Geez, nice!

Did you weigh it with the BB?
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  #6  
Old Feb 12th, 12, 6:01 PM
Mikeys69 Mikeys69 is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

There goes the neighbor hood. lol
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  #7  
Old Feb 12th, 12, 6:03 PM
73nova 73nova is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Quote:
Originally Posted by Doug F. View Post
Geez, nice!

Did you weigh it with the BB?
Quote:
Originally Posted by JOHN WILSON View Post
3615-3630.

Its on the Team clueless track day run down.
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  #8  
Old Feb 12th, 12, 6:03 PM
Harold Sutton Harold Sutton is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

What happened to the bad small block? I understand the weight gain now and the car slowing from previous outings. Did you just get the urge to drive it once in a while? A set of AFR 290 heads would take some weight off, (at least 70 lbs.), and maybe gain 40-50 h.p. too if Mark would go over them first. What rear end gear did you run the other day?
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  #9  
Old Feb 12th, 12, 6:07 PM
VORTECPRO VORTECPRO is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Its been great working with you! Thanks.
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  #10  
Old Feb 12th, 12, 6:11 PM
ShawnT ShawnT is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Badass piece you built him Mark

John, keep me updated!!
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  #11  
Old Feb 12th, 12, 6:18 PM
VORTECPRO VORTECPRO is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Thanks Shawn, but it takes a killer car to make an engine work, oviously John knows how to get it done.
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  #12  
Old Feb 12th, 12, 6:29 PM
Stokerboats Stokerboats is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

The bar just keeps on climbing. AND with Iron Ovals. That's funny stuff there.
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  #13  
Old Feb 12th, 12, 6:52 PM
40Coupe 40Coupe is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Real nice running, sounding, leaving and good looking car.

Congrats to John and to Mark!
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  #14  
Old Feb 12th, 12, 6:53 PM
mino65 mino65 is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

Wow!!!Hows the pan working as far as fit?Mark installed a canton pan on mine and i had an issue with the centerlink but worked it out.also still workin out the dipstick tube issue as canton puts it on the driver side and there is no room.really don,t know why but they did.congrats on the new motor!
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  #15  
Old Feb 12th, 12, 6:53 PM
crazydavey crazydavey is offline
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Default Re: VortecPro Dyno Results and Initial Track Results

wow, John I didn't know you did that....that's one badass motor...congrats to you and Mark on another outstanding build!! You get some runs on it and it's gonna be wicked....what are you running for tires, radials?
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