[B58togo]

https://www.fuel-it.com/b58-charge-p...ction-cpi-kit/

[PURE340i]

I wonder if there's a difference between meth vs CPI

[kern417]

Originally Posted by PURE340i

I wonder if there's a difference between meth vs CPI

From a hardware perspective, one taps into the OEM fuel system, and one is an entirely new system of lines, pump, and tank.

From performance perspective, pretty similar since both use external controllers and it's really up to the user on how much they want to lean on the supplemental fueling. Custom tuning will be needd to take full advantage.

It's really just personal preference because both systems are pretty proven.

Edit: Not really a fan of the injection point, but I guess time will tell. Would prefer hard mounting instead of in silicone, and sems like it could pool up in the turbo. I'd be more inclinde to drill/tap the intake manifold post-Throttle body if there's room.

[jackstrath]

Originally Posted by kern417

Edit: Not really a fan of the injection point, but I guess time will tell. Would prefer hard mounting instead of in silicone, and sems like it could pool up in the turbo. I'd be more inclinde to drill/tap the intake manifold post-Throttle body if there's room.

It looks like its hard mounted in an adapter ?

[Fuel-It!]

We have an optional coupler which we've been testing on our Pure Stage2 development B58 with good success.

That said we offer the kit without the coupler too for those who want to experiment with placement. You want to keep it a little away from the manifold so it has more room to vaporize and distribute within the air tract.

[kern417]

Originally Posted by Fuel-It!

We have an optional coupler which we've been testing on our Pure Stage2 development B58 with good success.

That said we offer the kit without the coupler too for those who want to experiment with placement. You want to keep it a little away from the manifold so it has more room to vaporize and distribute within the air tract.

Yeah I saw that. The only issue with the charge pipe mounting i see is it could still flow backwards towards the turbo. Have you guys experienced that at all? Maybe it's mostly in the tuning by making sure it only sprays in boost so less chance of fuel vapor getting stuck before the throttle body.

I might be jumping the gun because I'm sure your official release will have more info. I just remember seeing people with meth injection comment on experiencing the same thing when they turned up the flow.

[Solid67]

If one were to get this kit, could they then run full e85?

[Fuel-It!]

Originally Posted by Solid67

If one were to get this kit, could they then run full e85?

No, you can run 91 octane all the way up to straight E85! Although we've found overall E50-E60 is the best mix fro the platform. Maxes out performance while making the tuning end a lot easier than straight E85. Not all the flash maps needed for straight E85 are exposed yet but as they are the CPI kit will continue to grow with you.

[Fuel-It!]

Originally Posted by kern417

Yeah I saw that. The only issue with the charge pipe mounting i see is it could still flow backwards towards the turbo. Have you guys experienced that at all? Maybe it's mostly in the tuning by making sure it only sprays in boost so less chance of fuel vapor getting stuck before the throttle body.

I might be jumping the gun because I'm sure your official release will have more info. I just remember seeing people with meth injection comment on experiencing the same thing when they turned up the flow.

The system is only activated under boost so flow will always be from the turbo in to the intake manifold. We looked at other options including a port injection spacer like we offer for previous platforms but for technical reasons it does not work well on this platform. This is the best solution we can come up with short of customers spending 2-3x more on a higher capacity high pressure pump or running WMI.

[Nugget]

I would be happy to spend 2-3x as much for an upgraded HPFP.

[jrdoming]

Can someone explain to me the differences (other than the obvious one injects meth and one injects fuel from your fuel system) between the systems?

Meth raises the octane rating of the fuel before combustion right? so does using this with pump gas allow for increased boost/timing?

I have crappy access to e85 so I'm trying to figure out how to go past stage 2 and would rather not deal with a meth tank if I don't have to.

Thanks

[Fuel-It!]

Originally Posted by Nugget

I would be happy to spend 2-3x as much for an upgraded HPFP.

They are out there! I have a large turbo customer looking in to both actually. Even the higher capacity pump itself has its limitations.

[Fuel-It!]

Originally Posted by jrdoming

Can someone explain to me the differences (other than the obvious one injects meth and one injects fuel from your fuel system) between the systems?

Meth raises the octane rating of the fuel before combustion right? so does using this with pump gas allow for increased boost/timing?

I have crappy access to e85 so I'm trying to figure out how to go past stage 2 and would rather not deal with a meth tank if I don't have to.

Thanks

CPI is for those running E85 or race gas, where octane is not a limiting factor but fuel pressure is. So if you don't have E85 access then a methanol kit makes a lot more sense since you need the octane to go along with the fuel.

[jrdoming]

Originally Posted by Fuel-It!

CPI is for those running E85 or race gas, where octane is not a limiting factor but fuel pressure is. So if you don't have E85 access then a methanol kit makes a lot more sense since you need the octane to go along with the fuel.

Makes sense and that's what I kinda figured. Darn, I was hoping to not have to manage another tank.

[PURE340i]

Originally Posted by Fuel-It!

CPI is for those running E85 or race gas, where octane is not a limiting factor but fuel pressure is. So if you don't have E85 access then a methanol kit makes a lot more sense since you need the octane to go along with the fuel.

Would the gains be worth it or the same results switching from WMI to CPI? Only reason why i would switch is to avoid going out and buying the 5 gallon pail of meth.

[Fuel-It!]

Originally Posted by PURE340i

Would the gains be worth it or the same results switching from WMI to CPI? Only reason why i would switch is to avoid going out and buying the 5 gallon pail of meth.

If you already have WMI you're not going to add power changing to CPI, and you may drop power, depending on your octane situation. But it's a much cleaner and easier to maintain setup. With our flex fuel sensor the tuning can automatically detect pump gas vs. e85 and how much e85 and set the tuning all automatically so it's a much easier and more convenient way to make a lot of power.

[eksigned]

What's the benefit of a CPI kit over just adding the HPFP from the new platform G20?

[Fuel-It!]

Originally Posted by eksigned

What's the benefit of a CPI kit over just adding the HPFP from the new platform G20?

It remains to be seen what the fueling capacity is of larger high pressure pumps, on the CPI front even the basic single injector setup is good to go for E60 up to 500whp and beyond. It's also probably easier to install and remove. Beyond that time will tell.

[kern417]

Originally Posted by eksigned

What's the benefit of a CPI kit over just adding the HPFP from the new platform G20?

From my experience
- Cost
- OEM upgrades for the hpfp will have less headroom that aftermarket lpfp upgrades
- the biggest hpfp will still be limited by the OEM injectors. with the CPI kit you can install larger, easier to find port injectors or daisy chain multiple injectors if you get creative

[ilkthat]

Should we expect a back end file from mhd or a new one to come out to be coupled with this ? And with e50 e60 with full bolt on and this kit your saying we can get anywhere from 470-500 wheel?

[Fuel-It!]

Our PS2 equipped development vehicle runs E50 and is pretty much maxing out the current turbo with CPI. We are well over 500whp and typically do most of our testing at about 550whp.

To be clear we do NOT use a silicone coupler for our injection mounting point. Our adapter is billet but uses two silicone couplers to mount in the charge pipe where we have removed the factory silicone coupler.

Here's a couple pics...

Stock coupler


Billet CPI coupler


CPI kit installed

[Nugget]

Impressive!
Is that with the stock LPFP?
I assume you are running JB4 with MHD BEF?