Question for guys who actually have the the Roush Kit

[Stymee]

Thinking about my fuel pump replacement.....I wonder if I would be better off just buying a DW400 pump. I don't think a re-tune is necessary with a higher performance pump. I think it is with a bap, though.

Not sure but Roush told me if I did that, no warranty

 

[brucelinc]

Not sure but Roush told me if I did that, no warranty

I hadn't planned on telling them.

 

[engineermike]

I’ll make you a deal on one, but it doesn’t have the check valve.

 

[brucelinc]

I’ll make you a deal on one, but it doesn’t have the check valve.

What does the check valve do?

 

[Stymee]

I hadn't planned on telling them.

They monitor this webpage, be careful

 

[Stymee]

What does the check valve do?

Without a checkout valve I believe it cranks long on hot restart, u have to get a high psi check valve and install it in line but some guys say it hurts pump flow?

 

[brucelinc]

They monitor this webpage, be careful

I was kidding....of course I would never do something unauthorized by Roush.

 

[Stymee]

I was kidding....of course I would never do something unauthorized by Roush.

Ahhhh.....

The pump install from ford is free, u might as well give it a go, that's why we have a warranty

 

[engineermike]

What does the check valve do?

The leading theory is that it prevents vapor-lock. Without it, if you drive the car then let it sit for a while it takes longer to start. Whipple supplied these on their early kits and later changed to the one with a built-in check valve. Some don’t like the check valve because it does restrict the fuel flow some and it’s more like a 430 rather than a 455 lph.

 

[brucelinc]

Without a checkout valve I believe it it cranks long to hot restart, u have get a high psi check valve and install it in line but some guys say it hurts pump flow?

I am still waiting to see what Roush says. My installer wants them to authorize a higher performance pump. I am skepical if they will but he said he would try to get them to do more than just OEM.

 

[Stymee]

I am still waiting to see what Roush says. My installer wants them to authorize a higher performance pump. I am skepical if they will but he said he would try to get them to do more than just OEM.

We’ll see but make sure the NEW DW400 with the built in check valve. I hope you do cause if u get one, I’m having my dealer call Roush for the same pump

 

[brucelinc]

We’ll see but make sure the NEW DW400 with the built in check valve. I hope you do cause if u get one, I’m having my dealer call Roush for the same pump

I seriously doubt they will do it.

 

[Stymee]

I seriously doubt they will do it.

Me too....

One thing that’s positive, seems like Joe from VMP is a very good tuner. Alex Flores gave him major props on his live feed last night, both tuning and mechanical wise. Nice to see other shops getting along

VMP would be my shop if I custom tuned the car

 

[Evolution IX]

Me too....

One thing that’s positive, seems like Joe from VMP is a very good tuner. Alex Flores gave him major props on his live feed last night, both tuning and mechanical wise. Nice to see other shops getting along

VMP would be my shop if I custom tuned the car

Why VMP for an 18+ ?? Lund and PBD better options in my opinion.

 

[brucelinc]

Why VMP for an 18+ ?? Lund and PBD better options in my opinion.

Lund doesn't tune Roush. I have nothing against PBD but VMP has been very responsive when I have had questions. They have a great reputation for tuning Roush supercharged vehicles.