If I had it to do over again I would most likely recommend the kit from Lethal Performance.
Here is why:
This started last year when I was researching fuel systems for the twin turbo project. I reached out to BBR, JPC and Lethal Performance. I received responses from Lethal and JPC. Lethal's triple pump hats were still months from being ready for production, thus I opted to pursue the system from JPC.
In hindsight, I realize now why JPC prefers to conduct all correspondence by telephone instead of email...but I digress.
After responding to my initial email it was requested that I call to hash out the specifics of the kit. During that phone call, I inquired into the feasibility of running E85 with their system and was assured that not only would it be safe to run E85 but that the system with the 100% E85 compatible Deatschwerks DW300 fuel pumps would have no problems supply the fuel needs for my twin turbocharged engine.
So the kit was ordered, and installed by the shop that installed the twin turbo system. Imagine our surprise when the system ran out of fuel well short of the 1400rwhp I was assured that would be possible!!
Numerous phone calls ensued to try and source the speed bump in the system. JPC's rep kept insisting to me that it must be a problem with the tune or the install. I suggested that perhaps they should call the shop and talk directly to the persons handling the install and tuning of the kit. After even more phone calls, there was no resolution.
So I started asking around and doing my own research on the Deatschwerks DW300 fuel pumps and much to my dismay there was little positive information. I have discovered that these pumps only deliver the advertised fuel flow when supplied by much greater than 12 volts through wires of 8 ga. or larger! Further they are prone to super heating the fuel and incurring vapor lock issues.
My next phone call to JPC was to ask what was the maximum amount of rwhp they have produced from this kit using the DW300 pumps. The answer was that they had yet to use the exact system I was sold.
Thus, the same system that I was assured would support the fuel demands of my system had never been tested before it was sold to me. When I asked about this reported ability to support 1400rwhp, I was informed that was with Walbro pumps.
So I told the JPC rep that it sounded like I should have been sold Walbro pumps. His response was "We would be glad to sell you some Walbro pumps."
I am sure he would. But after promising me that an untested system would do what it has yet to come even close to being able to do and offering to let me pay for the requisite parts to get it to do what I was assured it could do, I just cannot in good faith continue to do business with JPC.
I have ordered the pumps from the shop that handled the install and the car is scheduled to go in to have this issue resolved mid September.
Truly unfortunate for the the rest of the JPC kit is top notch! No fuel sweating or fuel odors nor leaks or sub quality parts. All the requisite parts are included and packaged neatly and fit and work as intended.
But it is unforgivable to promise the performance of an untested system and then charge the customer to provide the parts to get the system to perform up to promised standards.
Here is why:
This started last year when I was researching fuel systems for the twin turbo project. I reached out to BBR, JPC and Lethal Performance. I received responses from Lethal and JPC. Lethal's triple pump hats were still months from being ready for production, thus I opted to pursue the system from JPC.
In hindsight, I realize now why JPC prefers to conduct all correspondence by telephone instead of email...but I digress.
After responding to my initial email it was requested that I call to hash out the specifics of the kit. During that phone call, I inquired into the feasibility of running E85 with their system and was assured that not only would it be safe to run E85 but that the system with the 100% E85 compatible Deatschwerks DW300 fuel pumps would have no problems supply the fuel needs for my twin turbocharged engine.
So the kit was ordered, and installed by the shop that installed the twin turbo system. Imagine our surprise when the system ran out of fuel well short of the 1400rwhp I was assured that would be possible!!
Numerous phone calls ensued to try and source the speed bump in the system. JPC's rep kept insisting to me that it must be a problem with the tune or the install. I suggested that perhaps they should call the shop and talk directly to the persons handling the install and tuning of the kit. After even more phone calls, there was no resolution.
So I started asking around and doing my own research on the Deatschwerks DW300 fuel pumps and much to my dismay there was little positive information. I have discovered that these pumps only deliver the advertised fuel flow when supplied by much greater than 12 volts through wires of 8 ga. or larger! Further they are prone to super heating the fuel and incurring vapor lock issues.
My next phone call to JPC was to ask what was the maximum amount of rwhp they have produced from this kit using the DW300 pumps. The answer was that they had yet to use the exact system I was sold.
Thus, the same system that I was assured would support the fuel demands of my system had never been tested before it was sold to me. When I asked about this reported ability to support 1400rwhp, I was informed that was with Walbro pumps.
So I told the JPC rep that it sounded like I should have been sold Walbro pumps. His response was "We would be glad to sell you some Walbro pumps."
I am sure he would. But after promising me that an untested system would do what it has yet to come even close to being able to do and offering to let me pay for the requisite parts to get it to do what I was assured it could do, I just cannot in good faith continue to do business with JPC.
I have ordered the pumps from the shop that handled the install and the car is scheduled to go in to have this issue resolved mid September.
Truly unfortunate for the the rest of the JPC kit is top notch! No fuel sweating or fuel odors nor leaks or sub quality parts. All the requisite parts are included and packaged neatly and fit and work as intended.
But it is unforgivable to promise the performance of an untested system and then charge the customer to provide the parts to get the system to perform up to promised standards.