Powerdyne & Fuel Management

[OneEightSeven]

So I'm going to be buying The Crow's powerdyne setup. I'm now planning for the install and have some questions regarding fuel management.

1. Does the FMU have to be used with stock injectors or can the PCM be tuned (via HP Tuners which I have) to add fuel? I'm guessing it's not possible to add enough fuel without increasing pressure via FMU with stock injectors?

2. I know I will need bigger injectors in the future since I will want to go above 6PSI. Which connectors do I need for the injectors to work? My car is a 99 and I've had my motor swapped to a newer one when I blew my original motor. I'm fairly sure the original injectors/fuel rail were re-used on the new motor. This is what my current injectors look like:

http://www.injectorwhse.com/catalog/32-11149.jpg

I pulled them recently to replace the fuel rail. The Camaro I grabbed the replacement fuel rail out of at the junk yard had skinny Delphi injectors which are I think 2000+. So which connectors do I need? Will these mototrons work (ev1 or ev6?):

http://zzperformance.com/grand_prix/...=248&catid=113

How about these Lucas injectors?:

http://zzperformance.com/grand_prix/...=249&catid=113

3. I already run a Walbro 255 in tank pump, fuel pressure gauge and AEM wideband AFR gauge. I'm assuming this setup is sufficient fuel wise? I will add an AEM boost gauge as well.

[dmw319]

Re: Powerdyne & Fuel Management

1. Does the FMU have to be used with stock injectors or can the PCM be tuned (via HP Tuners which I have) to add fuel? I'm guessing it's not possible to add enough fuel without increasing pressure via FMU with stock injectors?

2. I know I will need bigger injectors in the future since I will want to go above 6PSI. Which connectors do I need for the injectors to work? My car is a 99 and I've had my motor swapped to a newer one when I blew my original motor. I'm fairly sure the original injectors/fuel rail were re-used on the new motor. This is what my current injectors look like:

http://www.injectorwhse.com/catalog/32-11149.jpg

I pulled them recently to replace the fuel rail. The Camaro I grabbed the replacement fuel rail out of at the junk yard had skinny Delphi injectors which are I think 2000+. So which connectors do I need? Will these mototrons work (ev1 or ev6?):

http://zzperformance.com/grand_prix/...=248&catid=113

How about these Lucas injectors?:

http://zzperformance.com/grand_prix/...=249&catid=113

3. I already run a Walbro 255 in tank pump, fuel pressure and AEM wideband AFR gauge. I'm assuming this setup is sufficient fuel wise? I will add an AEM boost gauge as well.

1. No FMU does not have to be used if you tune the PCM via HP Tuners. This is the preferred method actually.

2. Can't see the pictures here at work but I had to change connectors once and I had 3 different types of injectors. I think I got mine from ZZP. Easy to install (the connectors).

3. Yep, that'll do it.

Congrats on your purchase!

[ssms5411]

Re: Powerdyne & Fuel Management

If you don't use the FMU , I'll buy it from you.

[OneEightSeven]

Re: Powerdyne & Fuel Management

1. No FMU does not have to be used if you tune the PCM via HP Tuners. This is the preferred method actually.

2. Can't see the pictures here at work but I had to change connectors once and I had 3 different types of injectors. I think I got mine from ZZP. Easy to install (the connectors).

3. Yep, that'll do it.

Congrats on your purchase!

Well it's good news that I can avoid using the fuel pressure regulator FMU thing. I'll start reading more about tuning from the forum and my hp tuners manual. Any specific tips would be highly appreciated.

If you could check out my links when you get out of work I'd really appreciate it. I'm going to shoot an email over to zzp as well. I would prefer to just get injectors that fit my application, though I guess it's not a huge pain to just solder on new connectors. The Lucas ones I linked to seem like the closest match to my existing ones.

If you don't use the FMU , I'll buy it from you.

I don't plan on using it at all if my stock injectors can handle the 6psi pulley with a tune. Actually I will probably upgrade my injectors during the install any way. The chances of me not needing the FMU are pretty high so I'll let you know!

[OneEightSeven]

Re: Powerdyne & Fuel Management

Ok, so ZZP said the injectors are Bosch style, which are the most common and most of their injectors fit including the Lucas. I figure 42.5#'s should be fine right? Any issues with tuning for these injectors?

Also I've been researching belt routing options for the PD. I currently have an electric WP and no AC unit. I have a ribbed idler pulley (231051 from auto zone) that I'm using to balance out the belt routing around it since there's no more AC pulley. I also have a GTP style double crank pulley. Has anyone tried to space out the powerdyne bracket and run it on it's own belt around a GTP style pulley?

[ssms5411]

Re: Powerdyne & Fuel Management

If their Bosch style , 36lbers could be used and their used price can be had for $60 used. But the 42LBers should be more than enough. PD has no room to run on its own pulley, the intake side on it would be in the fan shroud.

[OneEightSeven]

Re: Powerdyne & Fuel Management

If their Bosch style , 36lbers could be used and their used price can be had for $60 used. But the 42LBers should be more than enough. PD has no room to run on its own pulley, the intake side on it would be in the fan shroud.

Are the 42#'s good on our cars in terms of good idle/tune? I was worried about the fan shroud issue. How would you setup the belt routing without AC and with an electric WP and with the ribbed idler (jd power wrap style) that i'm using.

*Edit*: I do not have the AC condenser in place any more, so there is actually some space in front of the radiator. If eliminating the air box, i could probably move everything forward several inches including the shroud for the fans.

[ssms5411]

Re: Powerdyne & Fuel Management

42.5 injectors are like any other injectors just have to tune them right, as of belt routing just route it so the PD pulley has a good wrap on it, I don't know about moving it, the 2 bolt holes are there for a reason also have a 3rd bracket to hold it also. Along with the new tensioner setup.

[OneEightSeven]

Re: Powerdyne & Fuel Management

42.5 injectors are like any other injectors just have to tune them right, as of belt routing just route it so the PD pulley has a good wrap on it, I don't know about moving it, the 2 bolt holes are there for a reason also have a 3rd bracket to hold it also. Along with the new tensioner setup.

You're probably right, im sure its probably not worth the effort to move the pd on it's own belt. I was just curious of that possibility. I'll line things up once I get the parts in and see whats what wrap wise.

[Watazz]

Re: Powerdyne & Fuel Management

Theres not alot of room there for the pd to be moved out you would probably have to do a custom fan shroud like steve did. I would just put the pump back on and get an ac delete pulley. With the new brackets if you get the belt right there is little to no slip. As for fuel I rhink you are running 255 with 42s you'll be fine with tuning. From what I hear they are hard to tune for so just set the values all the same. And I believe ev6 but I could be wrong.

[OneEightSeven]

Re: Powerdyne & Fuel Management

Theres not alot of room there for the pd to be moved out you would probably have to do a custom fan shroud like steve did. I would just put the pump back on and get an ac delete pulley. With the new brackets if you get the belt right there is little to no slip. As for fuel I rhink you are running 255 with 42s you'll be fine with tuning. From what I hear they are hard to tune for so just set the values all the same. And I believe ev6 but I could be wrong.

Yea maybe it's possible. Once I get the PD from The Crow I'll see if i can make it fit by moving the radiator/shroud forward. I really don't want to put the normal WP on. I don't like it and I was never happy with the cooling performances. It seems that with the AC delete pulley you would actually have less contact with the crank than using the ribbed idler that I have. The electric performs so well and I spent a lot of money on it.

[Watazz]

Re: Powerdyne & Fuel Management

well If you arent going to rub the GTP crank I would recomend puting something in place of the AC. The John D wrap uses the ribbed idler and the ac pulleys to get the maximum amount of wrap on the supercharger. It would suck to pay 1300 for a 2psi unit. There was also a thread up here where someone was trying to adapt the PD and the electric pump to work together. However im not sure if it was successful or not. Mabe adapt a dummy pulley to the electric water pump somehow? just a thought.

Also If you run the PD directly off of the crank i think you will be spinning the PD the wrong way. You would have to turn the PD around(fan towards block) for it to work.

[Watazz]

Re: Powerdyne & Fuel Management

that polished unit from crows camaro will look nasty on yours as well I do believe. Good luck and PM me if you have questions.

[OneEightSeven]

Re: Powerdyne & Fuel Management

that polished unit from crows camaro will look nasty on yours as well I do believe. Good luck and PM me if you have questions.

Yea I think I may check out the Idler AC delete pulley kit from ZZP. I already have the ribbed AC idler replacement pulley that is normally smooth above the AC. Right now im not doing anything for the AC it self, it just loops around the idler pulley power wrap style. I'll def let you know if I have any questions getting this thing running. I hope I like this unit :D

[Watazz]

Re: Powerdyne & Fuel Management

You'll like it I dont think anyone tjat has had one exactly hated the power lol