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C3 single turbo project

Old 04-22-2018, 11:18 AM
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Bbowers77
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Default C3 single turbo project

Anyone successfully accomplished this?
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Old 04-22-2018, 09:25 PM
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Not many. Looks like you're close, got any more info/pics?
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Old 04-22-2018, 10:20 PM
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Originally Posted by Metalhead140 View Post
Not many. Looks like you're close, got any more info/pics?
Drove it some still not consistent with power.
Just got it where I can change up timing curve
I had to order a new sensor for mixture guage so pulling plugs till then
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Old 04-22-2018, 10:51 PM
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Originally Posted by Bbowers77 View Post
Drove it some still not consistent with power.
Just got it where I can change up timing curve
I had to order a new sensor for mixture guage so pulling plugs till then
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Old 04-22-2018, 10:55 PM
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biggest problem ,back then was trying to blow -thru a carb,,gale banks got it 1/2 right with his boat setups,2 turbos blowing by a carb [or 2] into a box where the carb used to be


somebody had a set-up where the carb was inside a box and it got pressurized by the boost too

the real way to do this today is use a EFI throttle body and 8 injectors in the runners ,and blow-thru that
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Old 04-22-2018, 11:00 PM
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this is a better setup
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Old 04-22-2018, 11:06 PM
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Originally Posted by dmaxx3500 View Post
biggest problem ,back then was trying to blow -thru a carb,,gale banks got it 1/2 right with his boat setups,2 turbos blowing by a carb [or 2] into a box where the carb used to be


somebody had a set-up where the carb was inside a box and it got pressurized by the boost too

the real way to do this today is use a EFI throttle body and 8 injectors in the runners ,and blow-thru that
it hasnt pushed any fuel out yet but
No telling what I may run into but it's worth a shot....if it doesn't work out I've already had my eye on holley sniper setup
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Old 04-23-2018, 06:35 AM
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Originally Posted by dmaxx3500 View Post
this is a better setup
QUOTE
if they spent all that money I would at least cooled that hot compressed air
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Old 04-23-2018, 08:00 PM
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Originally Posted by dmaxx3500 View Post
this is a better setup
502 cubes, TPI and twin turbos?? Do they make tires wide enough to put that kind of torque to the ground??

Seems like the kind of thing that could rotate the earth backwards and take you back in time ala Superman 2.


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Old 04-23-2018, 08:49 PM
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Originally Posted by NewbVetteGuy View Post
502 cubes, TPI and twin turbos?? Do they make tires wide enough to put that kind of torque to the ground??

Seems like the kind of thing that could rotate the earth backwards and take you back in time ala Superman 2.


Adam
That would require drag setup....I'm just trying to make a decent powered Sunday cruiser
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Old 04-23-2018, 09:40 PM
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You probably need to go to a real blow thru carb like a C&S to really get a handle on the fueling.


Cool project, I'm sub'd too see your progress. I love turbo builds.


What is the engine combo? You just running on wastegate spring pressure right now?

Lots of people have had good success with blow thru setups on mild combos.....
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Old 04-23-2018, 11:51 PM
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Originally Posted by ajrothm View Post
You probably need to go to a real blow thru carb like a C&S to really get a handle on the fueling.


Cool project, I'm sub'd too see your progress. I love turbo builds.


What is the engine combo? You just running on wastegate spring pressure right now?

Lots of people have had good success with blow thru setups on mild combos.....
The new Holley Sniper plus or whatever itís called is designed to be used with blowers like this... $1,500
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Old 04-24-2018, 04:31 AM
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Not a turbo but a Vortec charger and am running a C&S blow through carb. After install the only adjustment required was a small tweek on the idle setting. As for the timing I'm running a MSD dist and a 6AL-2 box with a MAP sensor which allows for the use of a laptop for setting the timing curve. I was told that as the air pressure increases that the fuel pressure also needs to increase at a 1 to one ratio. Areomotive supplied a boost sensitive fuel pressure regulator. Supply line of 1/2" with a return of 5/8". My max pressure is 9 PSI. Now if you change to the Sniper system which I'm currently installing on my naturally aspirated 9-car and from reading the instructions is good for a forced induction engine but you would need a distributor that you can lock out the timing so the Sniper can control it. You would also need to have a 60 PSI fuel supply. Either way you go expect your cost to be around $2000. T
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Old 04-24-2018, 07:50 AM
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Manually changing my curve & running a holley boost sense regulator....just using what ive already have until all adjustments are exhausted
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Old 04-24-2018, 05:41 PM
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That O2 gauge looks like a narrow band. Are you also looking into any wideband O2 gauges? Maybe one with logging might prove to be worth it's weight in blown engines.

You could probably get by with what you have if your HP goals are modest.
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Old 04-24-2018, 06:11 PM
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Originally Posted by Bbowers77 View Post
Manually changing my curve & running a holley boost sense regulator....just using what ive already have until all adjustments are exhausted
How are you changing the curve once the vacuum is gone/boost appears?
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Old 04-24-2018, 06:45 PM
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Originally Posted by 69427 View Post
How are you changing the curve once the vacuum is gone/boost appears?
Different weights & springs
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Old 04-24-2018, 06:48 PM
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You definitely need a real wideband O2 meter. The best of I have used out of the 5-6 I have owned, is the AEM Wego. Its only $180, self calibrates without the need for free air calibration and its very consistent.


That wideband you posted a pic of will do nothing for you. You need to see numbers....This is critical for forced induction, especially on pump gas.
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Old 04-24-2018, 06:53 PM
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Originally Posted by DblTrbl View Post
That O2 gauge looks like a narrow band. Are you also looking into any wideband O2 gauges? Maybe one with logging might prove to be worth it's weight in blown engines.

You could probably get by with what you have if your HP goals are modest.
Im not trying to scatter parts with crazy hp that I can't even make stick....narrow is fine u just have to keep pulling spark plugs
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Old 04-24-2018, 06:55 PM
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New Holley "Super Sniper" EFI.

Designed for this purpose. $1,199 for up to 650hp and includes a NOS control support OOB, too.


https://www.holley.com/products/fuel.../parts/550-519


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