thedbaz Posted March 31, 2023 Report Share Posted March 31, 2023 hello, i am getting a Razor PDM to run my fuel system. i currently have the 350z PNP ECU. i am going to run a DW 5.5L surge tank with 1 DW300 on stage one as the normal pump and 2 DW400 pumps as the second stage. the DW300 pump runs 14.7A at 90psi, so that will be covered with one single output. the DW400 pump runs 20.1A at 90psi, so 2 of them will be 40.2A. the unfortunate thing about the DW surge tanks is that there only have 2 connection points, stage 1 and stage 2. so im wondering if i can parallel up two of the High Power Outputs to run the two pumps, as there is no way to add a third set of contacts for a third stage. i would also like to use the flex sensor to go into the PDM, or would it be best to have it go into the ECU? in the spec sheet, i do not see the recommended input fuse size, what size is needed? is there an installation or instruction sheet available? i cant seem to find it on the webpage other than the spec sheet. also which ignition signal would i need to get form the ECU to wire into the IGN input on the PDM? would i use D10 pin 109 on the stock harness? stage one: will come on with the stock in tank pump and was looking to use HPO#1. im guessing that i can set this up in the ECU to turn on the normal pump and the surge tank stage one pump through the PDM? stage two: will come on at say 10 psi and turn on both pumps. i was hoping to use HPO#3 and HPO#4 for this and parallel the wires up onto the stage 2 contacts. i was also told i could PWM these pumps through the PDM. how would i go about doing that? based on TPS and Load(MAP)? thank you for the help!! below are links to the pumps and surge tank. Surge Tank: https://deatschwerks.com/collections/surge-tanks/products/6-401-55st-1 https://cdn.shopify.com/s/files/1/0414/1681/8852/files/DW5.5SST_Surge_Tank_6-000-55ST.pdf?v=1617899103 Pump Characterizations: https://cdn.shopify.com/s/files/1/0414/1681/8852/files/DW_Pump_Complete_Flow_Data_7ed55481-47b9-4186-83e2-785a45aaa39a.xlsx?v=1676650171 Quote Link to comment Share on other sites More sharing options...
Electredge Posted April 1, 2023 Report Share Posted April 1, 2023 11 hours ago, thedbaz said: hello, i am getting a Razor PDM to run my fuel system. i currently have the 350z PNP ECU. i am going to run a DW 5.5L surge tank with 1 DW300 on stage one as the normal pump and 2 DW400 pumps as the second stage. the DW300 pump runs 14.7A at 90psi, so that will be covered with one single output. the DW400 pump runs 20.1A at 90psi, so 2 of them will be 40.2A. the unfortunate thing about the DW surge tanks is that there only have 2 connection points, stage 1 and stage 2. so im wondering if i can parallel up two of the High Power Outputs to run the two pumps, as there is no way to add a third set of contacts for a third stage. i would also like to use the flex sensor to go into the PDM, or would it be best to have it go into the ECU? in the spec sheet, i do not see the recommended input fuse size, what size is needed? is there an installation or instruction sheet available? i cant seem to find it on the webpage other than the spec sheet. also which ignition signal would i need to get form the ECU to wire into the IGN input on the PDM? would i use D10 pin 109 on the stock harness? stage one: will come on with the stock in tank pump and was looking to use HPO#1. im guessing that i can set this up in the ECU to turn on the normal pump and the surge tank stage one pump through the PDM? stage two: will come on at say 10 psi and turn on both pumps. i was hoping to use HPO#3 and HPO#4 for this and parallel the wires up onto the stage 2 contacts. i was also told i could PWM these pumps through the PDM. how would i go about doing that? based on TPS and Load(MAP)? thank you for the help!! below are links to the pumps and surge tank. Surge Tank: https://deatschwerks.com/collections/surge-tanks/products/6-401-55st-1 https://cdn.shopify.com/s/files/1/0414/1681/8852/files/DW5.5SST_Surge_Tank_6-000-55ST.pdf?v=1617899103 Pump Characterizations: https://cdn.shopify.com/s/files/1/0414/1681/8852/files/DW_Pump_Complete_Flow_Data_7ed55481-47b9-4186-83e2-785a45aaa39a.xlsx?v=1676650171 are you planning to run 40+psi of boost? what's the target hp? I see no reason why you wouldn't be able to use 2 outputs together, as long as the control of those outputs is the same. Ethanol sensor currently only allows for a DI input to assign into the ecu, this could be something addressed in the firmware but currently I would expect if you want the ecu to control fuel properly when switching between pump and e85 it will need to be wired direct to the ecu. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 2, 2023 Report Share Posted April 2, 2023 At the moment you can run outputs in parallel for on/off type control only, not PWM. Quote Link to comment Share on other sites More sharing options...
thedbaz Posted April 3, 2023 Author Report Share Posted April 3, 2023 On 4/1/2023 at 3:21 AM, Electredge said: Ethanol sensor currently only allows for a DI input to assign into the ecu, this could be something addressed in the firmware but currently I would expect if you want the ecu to control fuel properly when switching between pump and e85 it will need to be wired direct to the ecu. ok great thank you. i have it currectly wired into the ECU, was just going to relocate it to the PDM since it would be right next to it. On 4/1/2023 at 3:21 AM, Electredge said: are you planning to run 40+psi of boost? what's the target hp? currently we push 40psi of boost on our YSI supercharged 350z. its probably making in the 1000hp area, but we've never dynoed it. just take it to the dragstrip. my 350z is a single turbo setup, im not sure of the boost level yet. i just dont want to run out power or pump. On 4/1/2023 at 9:58 PM, Adamw said: At the moment you can run outputs in parallel for on/off type control only, not PWM. ok great thank you. Quote Link to comment Share on other sites More sharing options...
Electredge Posted April 4, 2023 Report Share Posted April 4, 2023 14 hours ago, thedbaz said: ok great thank you. i have it currectly wired into the ECU, was just going to relocate it to the PDM since it would be right next to it. currently we push 40psi of boost on our YSI supercharged 350z. its probably making in the 1000hp area, but we've never dynoed it. just take it to the dragstrip. my 350z is a single turbo setup, im not sure of the boost level yet. i just dont want to run out power or pump. ok great thank you. what kind of racing are you using it for? drag? drift? track? Quote Link to comment Share on other sites More sharing options...
thedbaz Posted April 4, 2023 Author Report Share Posted April 4, 2023 4 hours ago, Electredge said: what kind of racing are you using it for? drag? drift? track? drag and street car. Quote Link to comment Share on other sites More sharing options...
Electredge Posted April 4, 2023 Report Share Posted April 4, 2023 6 hours ago, thedbaz said: drag and street car. thats good, then you will only be at peak power / peak current draw for roughly a few seconds at a time... this will very likely not be a problem at all as it will not be running at that peak level long enough to cause any problems as long as the proper wire size is used. settings below as an example Quote Link to comment Share on other sites More sharing options...
thedbaz Posted January 3 Author Report Share Posted January 3 well i am finally getting around to installing this. when pairing the outputs, can you pair 3 of them together? i will use output 1 for stage 1 which is a single DW400 pump. i will use outputs 3 and 4 for stage 2 which has 2 DW400 pumps. if the inrush is high, am i able to pair output 2 with outputs 3 and 4 to cover the inrush current? Quote Link to comment Share on other sites More sharing options...
Adamw Posted January 5 Report Share Posted January 5 On/off control would be ok, but I wouldnt do PWM with paired outputs. Quote Link to comment Share on other sites More sharing options...
Hurtenstein Posted January 11 Report Share Posted January 11 On 1/4/2024 at 3:43 AM, thedbaz said: if the inrush is high, am i able to pair output 2 with outputs 3 and 4 to cover the inrush current? Can you set a PWM channel to ramp up like a soft starter? Quote Link to comment Share on other sites More sharing options...
thedbaz Posted January 11 Author Report Share Posted January 11 13 hours ago, Hurtenstein said: Can you set a PWM channel to ramp up like a soft starter? not when you are using two highouts in parallel. there are on off only o PWM. Quote Link to comment Share on other sites More sharing options...
Hurtenstein Posted January 11 Report Share Posted January 11 When using a single output I meant. To avoid having to use 2. Quote Link to comment Share on other sites More sharing options...
aerace_fab Posted January 12 Report Share Posted January 12 On 1/11/2024 at 1:16 PM, Hurtenstein said: When using a single output I meant. To avoid having to use 2. Yes you can. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.