[SC_B5X]

Dorch has released their Stage 2 HPFP.

[Chris@VargasTurboTech]

One Supra pump in stock for immediate shipping. Customer backed out. It wont last long...

https://vargasturbo.com/product/b58-...de-supra-pump/

[RAWRRXD340iX]

thank you for this thread. I was actually just discussing today while lining up about $2000 worth of maintenance on my 2016 340i. my logs look good and besides my jb4, BMW intake, and soon to be catless DP, I can't see needing the fuel pump upgrade in my car at the moment.

saved me hours of research

[paul223]

Buying a Supra pump doesn't make sense at this point, specially from Vargas!!!!!! 😂 😂

[E90ROXS]

Damn all 3 pumps on fleabay all gone today! That guy who backed out from Vargas turbo probably scooped one up from ebay for cheaper price.

[OzBMR]

Can this thread please be made sticky, up top with the MPPSK thread?

[SC_B5X]

Originally Posted by OzBMR

Can this thread please be made sticky, up top with the MPPSK thread?

I've contacted the admins about it, I recommended they make the official threads for MHD, BM3, this thread, and the log review thread a sticker. Unfortunately I never heard anything back. Maybe if enough people suggest it.

[ronanz]

Originally Posted by SC_B5X

Dorch has released their Stage 2 HPFP.

Coming in hot .

.

[Chris@VargasTurboTech]

Originally Posted by paul223

Buying a Supra pump doesn't make sense at this point, specially from Vargas!!!!!! 😂 😂

Pump sold the same day I posted this. They make perfect sense for someone going E30 or pump gas with a GC.

[Chris@VargasTurboTech]

Originally Posted by E90ROXS

Damn all 3 pumps on fleabay all gone today! That guy who backed out from Vargas turbo probably scooped one up from ebay for cheaper price.

Doubtful, he wrecked his car

[SC_B5X]

So we tried E45-E50 on the Pure800 with Dorch Engineering Stage 1 HPFP and rail pressure is dropping quite a bit. Look's like i'm gonna be going with the Stage 2 pump sooner than expected. In the meantime i'm gonna drop it down to E30-E35 and see what kind of results we can get.

https://datazap.me/u/richmichael97/c...a=5-7-23-24-26

[ddkinz]

Originally Posted by SC_B5X

So we tried E45-E50 on the Pure800 with Dorch Engineering Stage 1 HPFP and rail pressure is dropping quite a bit. Look's like i'm gonna be going with the Stage 2 pump sooner than expected. In the meantime i'm gonna drop it down to E30-E35 and see what kind of results we can get.

https://datazap.me/u/richmichael97/c...a=5-7-23-24-26

Yes, would love to see what this turbo can do.

[E90ROXS]

I need that Dorch bag stage 2 pump

[SC_B5X]

Originally Posted by E90ROXS

I need that Dorch bag stage 2 pump

I highly recommend Dorch's pumps! I'm currently running their Stage 1 HPFP on E40 on my Pure800 and so far no rail pressure loss. We'll see what it does when it gets dialed in.

[JasF30]

How does this do on a stock turbo or just an upgraded turbo on pump gas 93, Is it worth it either one?
By me its very hard to find any kind of race fuel to keep it a daily

[weehe126]

Pump fuel and HPFP upgrades seems to be a reoccurring question. I think based on Pure's testing alone, if you will only ever run pump fuel the Supra HPFP is all you need. They ran out of octane before running out of fuel from my understanding.

As soon as you add any E85 you should start looking at the stage 1 pumps, stage 2 if you have an upgraded turbo.

[E90ROXS]

I have decided to go with the Dorch stage 2 pump. I have a B58tu pump available if anyone wants to take it. I have not installed the pump yet and the connector is already repositioned.

https://f30.bimmerpost.com/forums/sh....php?t=1691101

[theone1973]

Have someone seen any hp gain with upgrade hpfp only on pump fuel ?

Stage 2 RON 93 Octane for example.

I´m running MHD Stage 2 (/93 Octane - 98 Ron i Europe ) I´m thinking getting supra hpfp and go costum tune.

[Supr3me]

Originally Posted by theone1973

Have someone seen any hp gain with upgrade hpfp only on pump fuel ?

Stage 2 RON 93 Octane for example.

I´m running MHD Stage 2 (/93 Octane - 98 Ron i Europe ) I´m thinking getting supra hpfp and go costum tune.

The reason to move to an upgraded HPFP is to avoid rail pressure drops at WOT. The primary contributing factor we've seen for rail pressure drops is that ethanol has a significantly lower stoich value than pump gas, which means that although it's higher octane, you need more volume of fuel, which the stock hpfp can't keep up with.
I don't think we've seen any rail pressure drops with pump fuel on a stock turbo/stock HPFP with a good flash tune.

All that being said, custom tune is always going to get you better results than OTS and an upgraded HPFP will give the tuner even more headroom to work with. You might see some gains, but they won't be what you'd get from the upgraded HPFP if you were using an ethanol blend.

[theone1973]

Originally Posted by Sµpreme

The reason to move to an upgraded HPFP is to avoid rail pressure drops at WOT. The primary contributing factor we've seen for rail pressure drops is that ethanol has a significantly lower stoich value than pump gas, which means that although it's higher octane, you need more volume of fuel, which the stock hpfp can't keep up with.
I don't think we've seen any rail pressure drops with pump fuel on a stock turbo/stock HPFP with a good flash tune.

All that being said, custom tune is always going to get you better results than OTS and an upgraded HPFP will give the tuner even more headroom to work with. You might see some gains, but they won't be what you'd get from the upgraded HPFP if you were using an ethanol blend.

Thx man !

So for me fe it sound not worth 1400 euro to do this "upgrade"..

[M140_BCS]

Better off buying one used for under 500 euros.

[Supr3me]

Originally Posted by theone1973

Thx man !

So for me fe it sound not worth 1400 euro to do this "upgrade"..

If it were me, I'd save up a bit and do a turbo upgrade + hpfp upgrade at the same time. Then the custom tune with pump gas will net some serious gains.