May have solved 100% E85 on LNF puzzle
03-22-2011 | 10:43 PM
#509
Former Vendor
Joined: 06-03-08
Posts: 4,169
Likes: 8
From: Grand Rapids, MI
Even with Vince's advancements in injector timing, full E will not be practical on big turbos.(without added injectors) The mechanical fuel pump simply will not move enough fuel. In the past, we did not work on a pump upgrade because the injection window was still too short unless we could raise fuel pressure to 3500+ psi. Now that Vince has accessed the injection timing tables, it stands to reason that we need to work on a pump upgrade.
03-22-2011 | 10:59 PM
#511
Even with Vince's advancements in injector timing, full E will not be practical on big turbos.(without added injectors) The mechanical fuel pump simply will not move enough fuel. In the past, we did not work on a pump upgrade because the injection window was still too short unless we could raise fuel pressure to 3500+ psi. Now that Vince has accessed the injection timing tables, it stands to reason that we need to work on a pump upgrade.
03-23-2011 | 12:43 AM
#514
Member
Joined: 03-28-08
Posts: 201
Likes: 1
From: PA
The bigger injectors coming out on the 2012 models should take care of things...
Buick News - United States - News
Buick Regal Turbo Gets Industry-First Turbo Direct-Injected Engine with Flex-Fuel Capability
2011-02-21
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PONTIAC, Mich The 2011 Buick Regal Turbo is the first direct-injected turbocharged production car capable of running on any blend of gasoline or E85 ethanol, joining more than 5 million flex-fuel models General Motors has produced over the last 15 years.
The turbocharged Ecotec 2.0-liter inline four-cylinder engine that powers the Regal will help GM reach its goal of offering more than 50 percent of its production in flex-fuel models by the end of 2012.
Attendees at the National Ethanol Conference in Phoenix will have the opportunity to drive the Regal and the flex-fuel GMC Terrain during conference breaks today.
Compared to earlier versions of the 2.0-liter Ecotec turbo, GM powertrain engineers have significantly upgraded the new engine to accommodate both E85 and to incorporate refinements.
Since ethanol requires a richer air-fuel mixture than gasoline, flex-fuel engines need higher flow-rate injectors. However, a flex-fuel engine can potentially have any combination of gasoline or up to 85 percent ethanol in the tank, so a sensor in the fuel system measures the blend in real-time. This allows the engine management system to automatically adjust the mixture to provide improved performance and reduced emissions and fuel consumption. Stainless steel fuel lines provide extra corrosion resistance to ensure that the Regal Turbo meets GMs stringent durability requirements.
In the past, improving power output and reducing fuel consumption and emissions were often conflicting goals. By delivering fuel directly to the combustion chamber, the high-pressure injectors can now provide a more precise mixture for optimum combustion.
Buick News - United States - News
Buick Regal Turbo Gets Industry-First Turbo Direct-Injected Engine with Flex-Fuel Capability
2011-02-21
Back
Print | Email | Word | Add This
PONTIAC, Mich The 2011 Buick Regal Turbo is the first direct-injected turbocharged production car capable of running on any blend of gasoline or E85 ethanol, joining more than 5 million flex-fuel models General Motors has produced over the last 15 years.
The turbocharged Ecotec 2.0-liter inline four-cylinder engine that powers the Regal will help GM reach its goal of offering more than 50 percent of its production in flex-fuel models by the end of 2012.
Attendees at the National Ethanol Conference in Phoenix will have the opportunity to drive the Regal and the flex-fuel GMC Terrain during conference breaks today.
Compared to earlier versions of the 2.0-liter Ecotec turbo, GM powertrain engineers have significantly upgraded the new engine to accommodate both E85 and to incorporate refinements.
Since ethanol requires a richer air-fuel mixture than gasoline, flex-fuel engines need higher flow-rate injectors. However, a flex-fuel engine can potentially have any combination of gasoline or up to 85 percent ethanol in the tank, so a sensor in the fuel system measures the blend in real-time. This allows the engine management system to automatically adjust the mixture to provide improved performance and reduced emissions and fuel consumption. Stainless steel fuel lines provide extra corrosion resistance to ensure that the Regal Turbo meets GMs stringent durability requirements.
In the past, improving power output and reducing fuel consumption and emissions were often conflicting goals. By delivering fuel directly to the combustion chamber, the high-pressure injectors can now provide a more precise mixture for optimum combustion.
Last edited by 2000Firehawk; 03-23-2011 at 12:52 AM.
03-23-2011 | 01:14 AM
#515
I did some pulls tonight in my mostly stock sedan (only mod is ZZP AB Mod)
61-100 in 4.8 Seconds on vinces tune
60-100 in 5.0 Flat on another pull
Here is the evidence.
PULL number 1:
PULL number 2:
My altitude is over 3000ft here and I am only running 19.5 max advance up top. Not to shabby for a 99.9% stock setup with just E85 and a tune.
I am going to the dyno this weekend.
61-100 in 4.8 Seconds on vinces tune
60-100 in 5.0 Flat on another pull
Here is the evidence.
PULL number 1:
PULL number 2:
My altitude is over 3000ft here and I am only running 19.5 max advance up top. Not to shabby for a 99.9% stock setup with just E85 and a tune.
I am going to the dyno this weekend.
03-23-2011 | 01:22 AM
#516
I did some pulls tonight in my mostly stock sedan (only mod is ZZP AB Mod)
61-100 in 4.8 Seconds on vinces tune
60-100 in 5.0 Flat on another pull
My altitude is over 3000ft here and I am only running 19.5 max advance up top. Not to shabby for a 99.9% stock setup with just E85 and a tune.
I am going to the dyno this weekend.
61-100 in 4.8 Seconds on vinces tune
60-100 in 5.0 Flat on another pull
My altitude is over 3000ft here and I am only running 19.5 max advance up top. Not to shabby for a 99.9% stock setup with just E85 and a tune.
I am going to the dyno this weekend.
03-23-2011 | 01:24 AM
#517
Member
Joined: 09-18-09
Posts: 323
Likes: 0
From: AZ
I only picked up 13 WHP from going to 93 to E42.5.
03-23-2011 | 01:28 AM
#518
03-23-2011 | 01:43 AM
#523
