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Real Budget Vortec Engine build

General engine tech -- Drag Racing to Circle Track

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CGT
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Re: Real Budget Vortec Engine build

Post by CGT » Wed Apr 10, 2019 10:42 am

wilson1970 wrote:
Tue Apr 09, 2019 7:56 pm
What did you use for carburetor and ignition?
It used a 6AL and a MSD billet on the dyno, Braswell 1.490 x 1.75 carb if I remember right. He has a used digital 6 box for the car and is buying a new carb with similar dimensions for the car.

Would have been nice to have his carb for the dyno.....but I had him get an O² bung added to his header so we can get it tuned up a bit quicker in the car. Not sure what to expect with the new Holley carb.
"If you pick up a starving dog and make him prosperous, He will not bite you. This is the principal difference between a dog and a man"

GARY C
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Re: Real Budget Vortec Engine build

Post by GARY C » Wed Apr 10, 2019 12:29 pm

CGT wrote:
Wed Apr 10, 2019 10:42 am
wilson1970 wrote:
Tue Apr 09, 2019 7:56 pm
What did you use for carburetor and ignition?
It used a 6AL and a MSD billet on the dyno, Braswell 1.490 x 1.75 carb if I remember right. He has a used digital 6 box for the car and is buying a new carb with similar dimensions for the car.

Would have been nice to have his carb for the dyno.....but I had him get an O² bung added to his header so we can get it tuned up a bit quicker in the car. Not sure what to expect with the new Holley carb.
What system do you use for in car tuning?
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CGT
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Re: Real Budget Vortec Engine build

Post by CGT » Wed Apr 10, 2019 12:39 pm

GARY C wrote:
Wed Apr 10, 2019 12:29 pm
CGT wrote:
Wed Apr 10, 2019 10:42 am
wilson1970 wrote:
Tue Apr 09, 2019 7:56 pm
What did you use for carburetor and ignition?
It used a 6AL and a MSD billet on the dyno, Braswell 1.490 x 1.75 carb if I remember right. He has a used digital 6 box for the car and is buying a new carb with similar dimensions for the car.

Would have been nice to have his carb for the dyno.....but I had him get an O² bung added to his header so we can get it tuned up a bit quicker in the car. Not sure what to expect with the new Holley carb.
What system do you use for in car tuning?
Its always just been jetting for best mph at a track day, and fiddling with driveability here and there. But I think a wideband would shorten that process quite a bit. Still likely jet for best mph regardless of o² reading(within reason) but its nice to know if your way out in left or right field driving around in different scenarios
"If you pick up a starving dog and make him prosperous, He will not bite you. This is the principal difference between a dog and a man"

RevTheory
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Re: Real Budget Vortec Engine build

Post by RevTheory » Wed Apr 10, 2019 12:53 pm

Widebands are handy, little dudes to have as you tune your way through the circuits and transitions.

cpmotors
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Re: Real Budget Vortec Engine build

Post by cpmotors » Wed Apr 10, 2019 7:57 pm

BLOCKMAN wrote:
Wed Apr 10, 2019 8:36 am
cpmotors wrote:
Thu Nov 08, 2018 1:43 pm
FWIW-
906 heads with 1.94/1.50 and mild porting, Comp XE HR 230/236° @ .050" 110°, 1.6 rockers, 10.5:1, Scat Rods with Mahle pistons 1.5/1.5/3.0 ring pack, stock lifters, Beehives, Pro Magnum Rockers. Stuska Dyno.
It says fully blue printed as in the lifter bores and cam tunnel have been machined to blue print along with cylinder locations to blue print, If so that was not a cheap build. I would like to see what that job cost.
Not to sidetrack the thread, but lifter bores,cam tunnel were as GM and 150k miles left them, as were the bore locations. It was a relative budget build @ $6k.
Pete Graves
CPMotorworks,Inc.
Custom Engine Machining
Cylinder Head Fixture for Vertical / Surfacing Mills

Bob Hollinshead
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Re: Real Budget Vortec Engine build

Post by Bob Hollinshead » Wed Jul 17, 2019 7:20 am

Lots of good info shared in this thread, what did the car run?
Pro question poster.

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