ESS G3 60-130 8 psi

[Cory S]

14psi on GEN 3 running e85 should be over 850 RWHP

Ehhh. Never seen that before. Usually 780-810 depending on spark between 21-23.5°
Maybe on a manual car sure. It’s possible. Not a 6R80

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[Cory S]

[/QUOTE]

It probably makes close to that, I'm on e30 fuel with 20-21 deg timing,

Exactly. No crank driven blower is making that on E30 and under 10psi.

 

[Torinate]

And what you guys are inferring/deducing lines up with everything we know about supercharging coyotes. 13-14 PSI makes 750whp all day on just about every kit and style of SC. I made 780+ at 14PSI with a D1SC on E85.

Only turbo cars come close to making good power with single digit boost numbers.

I see your signature you're at 1140 whp with an F1A. What kind of boost did it take to make that number?

 

[Brad1810r80]

I've seen gen3 cars on 10psi make that on pump gas. I've never dyno, just said it would be close.

Exactly. No crank driven blower is making that on E30 and under 10psi.
[/QUOTE]

 

[Barrel]

I see your signature you're at 1140 whp with an F1A. What kind of boost did it take to make that number?

22-23PSI. I have a more conservative safety envelope than others and I'm capped at 21.5* of timing. Would make more at 23* and good alcohol.

 

[Torinate]

Thanks. That's just a ton of power!!! Love it!

 

[Cory S]

I've seen gen3 cars on 10psi make that on pump gas. I've never dyno, just said it would be close.



Exactly. No crank driven blower is making that on E30 and under 10psi.

[/QUOTE]

I've seen gen3 cars on 10psi make that on pump gas. I've never dyno, just said it would be close.

Gen3 blower or Gen 3 Coyote? Lol. A Gen 3 coyote can reach 725whp at 10psi on 22-23°. Yes.

 

[Brad1810r80]

Gen3 coyote seen several make over 700 10psi on pump gas 17-18deg

Gen3 blower or Gen 3 Coyote? Lol. A Gen 3 coyote can reach 725whp at 10psi on 22-23°. Yes.
[/QUOTE]

 

[Cory S]

I honestly think you should swap your boost gauge. All signs show it’s reading low by 2-3psi or so. Those Glow Shift gauges are like the ones you get at Autozone.

 

[Brad1810r80]

no all signs by the logs is it’s 6 psi off.

I honestly think you should swap your boost gauge. All signs show it’s reading low by 2-3psi or so. Those Glow Shift gauges are like the ones you get at Autozone.

 

[Angrey]

Where is the connection for the boost reference on an ESS kit. This isn't the only example of completely legit and justifiable power numbers, just at wildly out of line boost values.

From the other threads, I don't think anyone is lying or misleading. It may be an explanation on how the boost references/gauges are plumbed.

Someone should be ale to do a simple calculation on what the air flow is and determine at rpm what the 100% efficiency pressure would have to be (dismissing operating losses for the moment).

But first we must talk about what's been done to the motor prior to boosting.

A gen 3. car that has a cobra jet, aftermarket cams, ported/polished heads with oversized valves, revs to 8500 and has a free flowing 3" full exhaust system with 2" primaries is going to make 750 hp on a lot less effort than a bone stock gen3.

I don't doubt any of the power or torque or ETs or dragy numbers we're seeing from ESS and their stuff. The only thing that's seemingly implausible in many of the instances is the boost pressures.

 

[Brad1810r80]

It's T into the BOV line

Car has a GT350 Manifold, 87mm TB, LTH catted headers, 1050x , BAP


And the highest air load I seen on the log I sent everyone is 1.5

The car had a plain jane autometer on it at first but I went the change color route, they both read the same.

Where is the connection for the boost reference on an ESS kit. This isn't the only example of completely legit and justifiable power numbers, just at wildly out of line boost values.

From the other threads, I don't think anyone is lying or misleading. It may be an explanation on how the boost references/gauges are plumbed.

Someone should be ale to do a simple calculation on what the air flow is and determine at rpm what the 100% efficiency pressure would have to be (dismissing operating losses for the moment).

But first we must talk about what's been done to the motor prior to boosting.

A gen 3. car that has a cobra jet, aftermarket cams, ported/polished heads with oversized valves, revs to 8500 and has a free flowing 3" full exhaust system with 2" primaries is going to make 750 hp on a lot less effort than a bone stock gen3.

I don't doubt any of the power or torque or ETs or dragy numbers we're seeing from ESS and their stuff. The only thing that's seemingly implausible in many of the instances is the boost pressures.

 

[Brad1810r80]

This is just an approximate chart but 1.5 air load with the iat I had is 8 lbs of boost.

 

[Zrussian13]

Question for anyone more knowledgeable than me with logging. When you look at air load are you taking the highest value through the pull? Or the value at max rpm?

 

[Brevin@ESS]

I’ve been enjoying reading this thread and also enjoy the data being provided. There’s some smart guys in this thread!

I would like to make a comment on the boost pressure Brad is seeing. We rate and have tested extensively the 125mm pulley that he runs at ~7psi @7200rpm. This is our largest pulley and is specifically made for Gen 3 customers cars that live on 91 octane pump fuel. Now he is of course revving higher than 7200 which explains why he sees the 8psi figure. Not only is this accurate from our real world experience and testing.. it must be accurate because of the simple fact that now hundreds of our customers run this pulley on their Gen 3 12:1 compression engines on 91 octane fuel. If this pulley made anywhere near 14 psi on 91 octane fuel you would see extreme detonation and engine failures. Here in Arizona we have many local customers with the 125mm pulley running the worst 91 octane fuel in the nation with 110+ ambient temps in their Gen 3 coyotes. All of them consistently see between 6-8 psi depending on setup and RPM.

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