[thejeremyman9]

Originally Posted by Nicks_F30

Your saying it won’t make a difference on stage 2 93 7.1 multimap Oct map ?

Correct. It wont make a difference on any pump gas map with stock turbo. The stock HPFP provides plenty of fuel for pump gas. You will run out of octane before you run out of fuel quantity.

Originally Posted by Nicks_F30

Also, if I run stage 2 E30 map even tho upgraded hpfp isn’t required can I see a benefit?

Not really except you will be safe from HPFP pressure drips if the weather gets cold or you overshoot E%.

Having said that the whole point of the stage 2+ map is to take advantage of HPFP, so you will definitely benefit from that.

Bottom line is that you dont get any benefit unless you actually need the extra fuel delivery. A HPFP doesnt add any power in itself, it only matters when you exceed the fuel capacity of the stock HPFP.

[Nicks_F30]

Originally Posted by thejeremyman9

Correct. It wont make a difference on any pump gas map with stock turbo. The stock HPFP provides plenty of fuel for pump gas. You will run out of octane before you run out of fuel quantity.



Not really except you will be safe from HPFP pressure drips if the weather gets cold or you overshoot E%.

Having said that the whole point of the stage 2+ map is to take advantage of HPFP, so you will definitely benefit from that.

Bottom line is that you dont get any benefit unless you actually need the extra fuel delivery. A HPFP doesnt add any power in itself, it only matters when you exceed the fuel capacity of the stock HPFP.

Makes sense , I’m talking to protuning freaks and they’re telling me they have a lot of people running it with success. I’ll install the hpfp soon and run an e30 tune and later on if I do a turbo setup it should be enough.

[Nicks_F30]

Originally Posted by thejeremyman9

Correct. It wont make a difference on any pump gas map with stock turbo. The stock HPFP provides plenty of fuel for pump gas. You will run out of octane before you run out of fuel quantity.



Not really except you will be safe from HPFP pressure drips if the weather gets cold or you overshoot E%.

Having said that the whole point of the stage 2+ map is to take advantage of HPFP, so you will definitely benefit from that.

Bottom line is that you dont get any benefit unless you actually need the extra fuel delivery. A HPFP doesnt add any power in itself, it only matters when you exceed the fuel capacity of the stock HPFP.

So if I run stage 2+ with the evo hpfp and set hpfp as oem would the map adjust ? Because I tried it with stock hpfp and set it to oem and it didn’t like it !

[thejeremyman9]

Originally Posted by Nicks_F30

Makes sense , I’m talking to protuning freaks and they’re telling me they have a lot of people running it with success. I’ll install the hpfp soon and run an e30 tune and later on if I do a turbo setup it should be enough.

running what, the b58 HPFP?

Originally Posted by Nicks_F30

So if I run stage 2+ with the evo hpfp and set hpfp as oem would the map adjust ? Because I tried it with stock hpfp and set it to oem and it didn’t like it !

Well obviously you can't run the stage 2+ map with OEM HPFP, it specifically requires an upgraded HPFP. The HPFP option in the map settings doesnt 'adjust' the tune at all, it only programs the car to accept different HPFP.

But yes you can run the stage 2+ map with an upgraded HPFP. for the B58tu pump you keep the flash option as stock

[Nicks_F30]

Originally Posted by thejeremyman9

running what, the b58 HPFP?



Well obviously you can't run the stage 2+ map with OEM HPFP, it specifically requires an upgraded HPFP. The HPFP option in the map settings doesnt 'adjust' the tune at all, it only programs the car to accept different HPFP.

But yes you can run the stage 2+ map with an upgraded HPFP. for the B58tu pump you keep the flash option as stock

I have the b58 evo hpfp not the tu pump.

[thejeremyman9]

Originally Posted by Nicks_F30

I have the b58 evo hpfp not the tu pump.

Isn't that only slightly better than stock N55 pump? Not sure the headroom to run stage 2+ ethanol map

[Nicks_F30]

Originally Posted by thejeremyman9

Isn't that only slightly better than stock N55 pump? Not sure the headroom to run stage 2+ ethanol map

Talked to protuning freaks , they should it should be enough with stage 2+. They said midrange and a 93 map or even e30 would be noticeable.

[thejeremyman9]

Originally Posted by Nicks_F30

Talked to protuning freaks , they should it should be enough with stage 2+. They said midrange and a 93 map or even e30 would be noticeable.

Post up logs with the 2+ E30 map once you have the pump installed

[arekuf3x]

Originally Posted by thejeremyman9

Isn't that only slightly better than stock N55 pump? Not sure the headroom to run stage 2+ ethanol map

I’ve been running pure500 with oem b58 hpfp gen 1 pump on e30 custom tune. Stock n55 hpfp can’t handle e30 mix with pure500 turbo. I haven’t had any hpfp crashing issues yet like I did with n55 hpfp.

[thejeremyman9]

Originally Posted by arekuf3x

I’ve been running pure500 with oem b58 hpfp gen 1 pump on e30 custom tune. Stock n55 hpfp can’t handle e30 mix with pure500 turbo. I haven’t had any hpfp crashing issues yet like I did with n55 hpfp.

Interesting, have logs?

According to Dorch, the HDP5 evo only flows about 7% more than the OEM N55 HPFP. https://dorchengineering.com/product...1-hpfp-upgrade

[Nicks_F30]

Originally Posted by thejeremyman9

Interesting, have logs?

According to Dorch, the HDP5 evo only flows about 7% more than the OEM N55 HPFP. https://dorchengineering.com/product...1-hpfp-upgrade

Yes and consistent fuel pressure on every injector.

[AmuroRay]

Originally Posted by Nicks_F30

Yes and consistent fuel pressure on every injector.

Can you please post the logs?

[Nicks_F30]

Originally Posted by AmuroRay

Can you please post the logs?

Haven’t installed the hpfp yet I’m going off what the first couple of pages members posted.

[AmuroRay]

Originally Posted by arekuf3x

I’ve been running pure500 with oem b58 hpfp gen 1 pump on e30 custom tune. Stock n55 hpfp can’t handle e30 mix with pure500 turbo. I haven’t had any hpfp crashing issues yet like I did with n55 hpfp.

Originally Posted by Nicks_F30

Haven’t installed the hpfp yet I’m going off what the first couple of pages members posted.

My fault, I got you mixed up with another member.

Can you post a log?

[arekuf3x]

Originally Posted by AmuroRay

My fault, I got you mixed up with another member. https://datazap.me/u/arekux/pure500-...1-12-13&solo=3

Can you post a log?

Here you go, still finalizing the map, currently running more boos. Maps below are both on same revision. Any more boost and n55 hpfp would crash to 1200psi. I actually had few crashes on this map with n55 hpfp, usually around 1100-1200 psi.

N55 ewg, 8 auto, pure500 turbo FBO. Car is running higher boost now, it’s a beast.

N55 hpfp dip to 1400psi vs 2000psi on b58 hpfp.

B58 hpfp with same map

https://datazap.me/u/arekux/pure500-...og=0&data=3-12

N55 hpfp with same map

https://datazap.me/u/arekux/pure500-...og=0&data=3-13

[AmuroRay]

Originally Posted by arekuf3x

Here you go, still finalizing the map, currently running more boos. Maps below are both on same revision. Any more boost and n55 hpfp would crash to 1200psi. I actually had few crashes on this map with n55 hpfp, usually around 1100-1200 psi.

N55 ewg, 8 auto, pure500 FBO. Car is running higher boost now, it’s a beast.

N55 hpfp dip to 1400psi vs 2000psi on b58 hpfp.

B58 hpfp with same map

https://datazap.me/u/arekux/pure500-...og=0&data=3-12

N55 hpfp with same map

https://datazap.me/u/arekux/pure500-...og=0&data=3-13

Stock inlet? That WGDC is higher than mine at the same RPM, and you’re running less boost.

[arekuf3x]

Originally Posted by AmuroRay

Stock inlet? That WGDC is higher than mine at the same RPM, and you’re running less boost.

No, one piece high flow inlet by pure turbos with M performance intake, stock filter.


https://datazap.me/u/arekux/n55-pure...og=0&data=3-12

Here is one log with higher boost on pure500 turbo and b58 oem hpfp.

[thejeremyman9]

Originally Posted by arekuf3x

No, one piece high flow inlet by pure turbos with M performance intake, stock filter.


https://datazap.me/u/arekux/n55-pure...og=0&data=3-12

Here is one log with higher boost on pure500 turbo and b58 oem hpfp.

Log is missing some key parameters but its not really running much more boost than OTS maps. It surges to ~19psi briefly but falls back down. The load and boost control is also a bit strange. Who is doing the tune? It looks more BM3-ish than MHD.

Also your pressure still starts to drop at peak boost. Makes sense with how little more that pump flows.

[designatedposter]

Originally Posted by arekuf3x

No, one piece high flow inlet by pure turbos with M performance intake, stock filter.


https://datazap.me/u/arekux/n55-pure...og=0&data=3-12

Here is one log with higher boost on pure500 turbo and b58 oem hpfp.

this tune is targeting the same 17.3 psi as your 2 other logs, however, this one has an overboost moment up to 19psi

[Nicks_F30]

Pro tuning is telling me to install the tu pump but I read it’s out of spec and cause damage down the line ?

[designatedposter]

Originally Posted by Nicks_F30

Pro tuning is telling me to install the tu pump but I read it’s out of spec and cause damage down the line ?

**i just realized i already posted this a couple years ago in this same thread** for full transparency, i am running a spool fx150 hpfp because i got a good deal and i didn't want to deal with templating, cutting, etc.. the b58 pump

i have read of 1 instance where someone claimed the tu pump damaged their n55, but it was never backed with any evidence and the poster went quiet.

n55 hpfp is driven by cam on the vacuum pump, and using a tu pump to get more flow is no different than using any of the available aftermarket hpfp. the principle is the same, increase fuel volume by increasing the size of the piston that rides the cam or have a more efficient design. sure, this would theoretically cause more wear on your cam, but so does any other upgraded hpfp and there has been no reports of damage that i have ever come across.

if you're willing to do the work and modify the flange of the tu pump, i think it's a good option.

[Nicks_F30]

Originally Posted by designatedposter

**i just realized i already posted this a couple years ago in this same thread** for full transparency, i am running a spool fx150 hpfp because i got a good deal and i didn't want to deal with templating, cutting, etc.. the b58 pump

i have read of 1 instance where someone claimed the tu pump damaged their n55, but it was never backed with any evidence and the poster went quiet.

n55 hpfp is driven by cam on the vacuum pump, and using a tu pump to get more flow is no different than using any of the available aftermarket hpfp. the principle is the same, increase fuel volume by increasing the size of the piston that rides the cam or have a more efficient design. sure, this would theoretically cause more wear on your cam, but so does any other upgraded hpfp and there has been no reports of damage that i have ever come across.

if you're willing to do the work and modify the flange of the tu pump, i think it's a good option.

They also said first gen b58 evo pump has a nice increase.