XV1 requiring meth

[BiGMaC]

why don't they simply address the problem that goes along with the XV1 ? Fuel delivery ?

different fuel pumps, boost-a-pump etc

seems like a simple solution as a requiremment to run the XV1.

I already wonder if my SHO would benefit from a boost-a-pump with a stage 4 LMS tune in.

Sometimes it feels like its running out of gas. It gets stuck at 5K rpms and want accelerate past that rpm and almost feels like a rev limiter. Also sometimes it hesitates that I thoguht was spark blow out but I regapped my plugs to .28 and it's the same. Mainly happens on downshifts to 2nd.

I can't answer it for the XV1, but above 500WHP, with one of Torrie's (Unleashed) SCT tunes, 4DR began to have trouble with fuel delivery and fuel rail pressure (there's another pump near the manifold for this per Dan at LMS... limited to 2000psi) that caused the ECM to shut him down to prevent too lean a mixture when he went to E85. 4DR developed a fuel delivery system with an extra pump, new injectors, and a few other changes.  He was running it on his 600+WHP Flex and showed it to me over at Black Market Racing a couple of weeks ago. It's not too complicated, and he posted the details here somewhere... I think in the fueling thread...  He can reproduce it for about $2800 as I remember.  Bottom line... you're right, it's a hardware problem at some point depending on tune, mods, and fuel. Putting it on should not be difficult, but you may need to data log (and use an SCT tune) or visit LMS to have your ride tuned with it to get it to work right.

[68_GT]

a simple boost a pump, larger 60# fuel injectors, and larger Cobra pumps gave my 2000 Mustang 708 RWHP.

unbelieveable how compliacated these cars are to modify !

[SHOdded]

Yeah, only going to get worse, with ever-restrictive safety & mpg regs.  Doesn't help that the Taurus is classified as a family sedan and the SHO is probably already considered a rocket in that context.  Plus there's a question of sales volume. 

Just out of curiousity, what were the OEM specs on your 2000 Mustang, and how did your mods affect fuel economy & streetability?

[EcoPowerParts]

The key is

why don't they simply address the problem that goes along with the XV1 ? Fuel delivery ?

different fuel pumps, boost-a-pump etc

seems like a simple solution as a requiremment to run the XV1.

I already wonder if my SHO would benefit from a boost-a-pump with a stage 4 LMS tune in.

Sometimes it feels like its running out of gas. It gets stuck at 5K rpms and want accelerate past that rpm and almost feels like a rev limiter. Also sometimes it hesitates that I thoguht was spark blow out but I regapped my plugs to .28 and it's the same. Mainly happens on downshifts to 2nd.

Boost a pump won't do much as the pressure is set at 50 psi, doing a return system and upping the pressure makes a huge difference.
I have a solution, working on plug and play.

how does one do that and how to get the benefit ? how do you up the pressure ? are you saying this is something you are working on for yourself, and the EB community ?

modding these cars can be frustrating..... I guess it's an ecoboost thing thanks to Ford making it so difficult !

Return style fuel system with a boost referenced FPR.
No need for the aux injectors and controller, it can be connected to the factory DI setup and fuel up to around 600HP on gas.

[68_GT]

The key is

why don't they simply address the problem that goes along with the XV1 ? Fuel delivery ?

different fuel pumps, boost-a-pump etc

seems like a simple solution as a requiremment to run the XV1.

I already wonder if my SHO would benefit from a boost-a-pump with a stage 4 LMS tune in.

Sometimes it feels like its running out of gas. It gets stuck at 5K rpms and want accelerate past that rpm and almost feels like a rev limiter. Also sometimes it hesitates that I thoguht was spark blow out but I regapped my plugs to .28 and it's the same. Mainly happens on downshifts to 2nd.

Boost a pump won't do much as the pressure is set at 50 psi, doing a return system and upping the pressure makes a huge difference.
I have a solution, working on plug and play.

how does one do that and how to get the benefit ? how do you up the pressure ? are you saying this is something you are working on for yourself, and the EB community ?

modding these cars can be frustrating..... I guess it's an ecoboost thing thanks to Ford making it so difficult !

Return style fuel system with a boost referenced FPR.
No need for the aux injectors and controller, it can be connected to the factory DI setup and fuel up to around 600HP on gas.

nice next question how to get to 600 HP ? simple as upgrading turbos and fuel delivery

Just out of curiousity, what were the OEM specs on your 2000 Mustang, and how did your mods affect fuel economy & streetability?

yeah fuel economy was pretty bad mainly if you put your foot in it a lot that power requires a lot of fuel ! However it wasn't too terrible if I drove it slowly becasue the engine / heads and everything was so efficient. It had 355 gears to help with traction so the highway rpms wasn't too high even with a TKO trnasmission with no 5th overdrive ratio. Streetability was fine you just have to be carefull getting sideways at 70mph isn't for the faint of heart lol I later took off the Novi 2000 that made higer peak hp and put on a Kenne Bell twin screw that had less peak power but lot more under the curve. 580 RWTQ at 2,200 rpmw is a blast....with 315 drag radials

[EcoPowerParts]

Exhaust and turbos with fuel.

Sent from my SCH-I545 using Tapatalk

[68_GT]

we need a thread with what modifications are needed for the different desired / possible power levels with which modifications to do first for max gain / benefits etc...

curious as to how well my drivetrain will hold up to 500 - 600 whp also.

[Fast SHO]

Why wouldn't a boost a pump work?  Can the injectors not be changed on on DI?

[EcoPowerParts]

Why wouldn't a boost a pump work?  Can the injectors not be changed on on DI?

You're only adding voltage to maintain 50 psi. Yes it will help a little bit, Ecobrick Bob tested it and found it a small benefit.
There are injectors coming out but I didn't have a problem with them at 500HP on my car spraying E48.

we need a thread with what modifications are needed for the different desired / possible power levels with which modifications to do first for max gain / benefits etc...

curious as to how well my drivetrain will hold up to 500 - 600 whp also.

I am hoping the SHO can handle the additional torque better than the SHO.
I used to have a 96 Impala SS that ate trannies like skittles, I went to all the best tranny guys all over the country for the 4L60E that had built 9 second capable trannies for camaros, corvettes etc. The key we found was the torque + the additional weight of the vehicle that was killing the transmission. Drop 1K pounds and the tranny lived. There's an 800lb difference between a SHO and a Flex, really hoping that makes the tranny live longer until somebody comes out with a rebuild kit.

[Fast SHO]

Should be enough of a benefit to fix the problems with the XV1 and the stage 4 plus, and relatively cheap.

And what about injectors?  Can those not be swapped?

[crash712us]

At this time there is no larger injectors, however at SEMA there is a company that is developing injectors and DI pump.