FSP - 1291whp, And Counting...Addition of Haltech Standalone EMS + Port Injection
05-02-2016, 10:26 AM
#41
Drifting
05-31-2016, 12:44 PM
#45
Drifting
Unfortunately we had an issue that we could not figure out that weekend, and I never even made a full pass. Car was down on HP and totally flopped in 4th gear, lost all power. I had to let up on every run.
The culprit? Bad Z06 pump.
The culprit? Bad Z06 pump.
Last edited by Motohead279; 05-31-2016 at 12:45 PM.
06-01-2016, 08:28 AM
#46
Le Mans Master
The high pressure pump? Did it sheer itself off the factory mounting bracket?
06-02-2016, 10:12 AM
#47
Drifting
I don't know I have not seen it. When Matt at FSP picked the car up and had his laptop hooked up he could watch the fuel pressure dropping until it finally quit. Luckily we have port injection also on the car and could use that to get it to the shop.
06-02-2016, 10:25 AM
#48
Le Mans Master
Maybe Matt will chime in. Same thing happened to my car twice. Curious if you guys are running the stronger comp spring on the fuel pump.?
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Earl H (06-05-2016)
06-06-2016, 02:02 PM
#50
Drifting
I will know the results in a few days.
06-06-2016, 02:25 PM
#51
Melting Slicks
We were not running the DI hard, I believe the port injection came on at 4psi. We were originally told that the car may throw a bunch of codes if we eliminate the DI altogether, but right now that is the plan to turn off DI and run port injection only.
I will know the results in a few days.
I will know the results in a few days.
Note: not critiquing setup at all, just thinking out loud re: more "efficient" approach. You are blazing the trail and will get the wiz bang solution. Fast forward 2-3 years and the solution we are all looking for will be simpler, more efficient and common place....
Last edited by Earl H; 06-06-2016 at 02:31 PM.
06-07-2016, 04:19 PM
#52
Drifting
What drove decision to not let the OEM DI handle the primary ECU responsibilities and use port injection setup to handle anything greater than stock power levels. Seems like that would leave you with near stock driveability with the ability handle high horspower demands when needed. I am personally still wondering why guys are jumping right to cam changes, with the extra cost of LTX setups (e.g. 20+ hours swap cost). Why not sink that cash into a port injection supplemental fuel system (e.g. MSD/other intake, fuel rails, lines, pump, piggyback controller) to handle to additional fueling requirements under boost. The main appeal ,besides cost, would be to keep the car acting like a stock setup until more power is required.
Note: not critiquing setup at all, just thinking out loud re: more "efficient" approach. You are blazing the trail and will get the wiz bang solution. Fast forward 2-3 years and the solution we are all looking for will be simpler, more efficient and common place....
Note: not critiquing setup at all, just thinking out loud re: more "efficient" approach. You are blazing the trail and will get the wiz bang solution. Fast forward 2-3 years and the solution we are all looking for will be simpler, more efficient and common place....
We went to a bigger cam obviously for more fuel, as a cam is a lot less expensive than adding a whole port injection system plus secondary ECU. Its hard to foresee into the future and know the larger cam lobe was going to overdrive the Z06 pump and break them, and also still not give us enough fueling.
Like I stated before, I believe the port injection started gradually started coming on at 4 psi. Its a lot easier on paper to just say "just do this" than to have it tuned and actually run correctly.
As for a "packaged" solution... I wasn't looking to wait 2 - 3 years as you say. This is all new uncharted territory for this car. Someone has to do it.
06-07-2016, 04:21 PM
#53
Drifting
06-07-2016, 07:36 PM
#54
Melting Slicks
Have you not read any of this thread? We have a LME intake and secondary fuel system with port injection and fuel rails/injectors on the car controlled by a Haltech Pro2500 ECU. The Haltech is controlling all of the timing, the stock ECU is still controlling most aspects of the DI system. Since this has not been done on a C7 before, FSP and Haltech were unsure how the car would react if the DI was completely removed from the equation. They are actually working on that today.
We went to a bigger cam obviously for more fuel, as a cam is a lot less expensive than adding a whole port injection system plus secondary ECU. Its hard to foresee into the future and know the larger cam lobe was going to overdrive the Z06 pump and break them, and also still not give us enough fueling.
Like I stated before, I believe the port injection started gradually started coming on at 4 psi. Its a lot easier on paper to just say "just do this" than to have it tuned and actually run correctly.
As for a "packaged" solution... I wasn't looking to wait 2 - 3 years as you say. This is all new uncharted territory for this car. Someone has to do it.
We went to a bigger cam obviously for more fuel, as a cam is a lot less expensive than adding a whole port injection system plus secondary ECU. Its hard to foresee into the future and know the larger cam lobe was going to overdrive the Z06 pump and break them, and also still not give us enough fueling.
Like I stated before, I believe the port injection started gradually started coming on at 4 psi. Its a lot easier on paper to just say "just do this" than to have it tuned and actually run correctly.
As for a "packaged" solution... I wasn't looking to wait 2 - 3 years as you say. This is all new uncharted territory for this car. Someone has to do it.
Last edited by Earl H; 06-07-2016 at 07:38 PM.
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wickedred (07-05-2016)
06-27-2016, 12:31 PM
#57
Drifting
06-27-2016, 04:41 PM
#58
Race Director
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Matt@FSP,
Do you have any concerns about spraying that early into an open exhaust valve and not capturing that fuel for combustion? Or do you just look at it like a port application during overlap?
Do you have any concerns about spraying that early into an open exhaust valve and not capturing that fuel for combustion? Or do you just look at it like a port application during overlap?
12-06-2016, 11:52 AM
#59
Melting Slicks
Any updates on this build? My F1X is sitting in the garage while we await a fueling solution which is forthcoming, but I am curious how this all panned out for you in the months that followed this thread.
12-06-2016, 12:51 PM
#60
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St. Jude Donor '15