[Sleeper340i]

Originally Posted by Neil07

I have the spool FX-150. If you are running a stock turbo you run up to E50 fuel bend or possibly higher with no issues.

I replaced the stock turbo with a pure800 and my pump is good for up to E40 with the higher boost. I mixed E50 and the pump would start to loose rail pressure. It got down to 2000.

I will be upgrading to the FX-180 in the future and selling my FX-150.

I did buy the fuel filter. More for peace of mind. I figured the filter is not going to hurt anything.

Honestly I do not think BMW would build an engine that needed an after market filter to protect it, and the Dorch set up does not come with one. So my opinion is you do not need it

Appreciate your post. I thought you ended up getting E50 tune with your current set up tho and it was fine? Did rail pressure randomly start going bad?

Also do u know how much you're making about on your tune? It's the exact same set up I was going for and I was aiming for 580-600 wheel but seems like everyone's number vary wildly.

[Neil07]

The E50 tune was fine until the OA temp got up to 100 degrees. The rail pressure would drop further in the heat. I got a revised map after my "final" map to drop the boost a bit. So now it runs with no problems but with a bit less power. Not ideal but at this point it is my only option.

If I had to guess I would assume I'm making a bit over 500 HP on my E50 tune, based on what I see others are getting for virtual dyno's with a similar timing/boost outputs.

Do not let the fuel pump limit your goals. Get the Dorch stg2 for the FX-180, if you have high HP goals.

I do not think you will get 600 HP with just the pump/turbo and tuning. To get 600 you will need meth or other supplemental fueling.

[Sleeper340i]

Originally Posted by Neil07

The E50 tune was fine until the OA temp got up to 100 degrees. The rail pressure would drop further in the heat. I got a revised map after my "final" map to drop the boost a bit. So now it runs with no problems but with a bit less power. Not ideal but at this point it is my only option.

If I had to guess I would assume I'm making a bit over 500 HP on my E50 tune, based on what I see others are getting for virtual dyno's with a similar timing/boost outputs.

Do not let the fuel pump limit your goals. Get the Dorch stg2 for the FX-180, if you have high HP goals.

I do not think you will get 600 HP with just the pump/turbo and tuning. To get 600 you will need meth or other supplemental fueling.

Appreciate your input. I am definitely planning on going E50 as I know my numbers I want are not attainable on pump.

Interesting you say just over 500 wheel as I got 475 wheel virtual dyno on my 92 octane and Supr3me got his dyno on E50 the other day at 570 wheel so I would think you're more near 570? Unless that Pump is hindering more timing etc

As for the fueling limits I'll definitely keep what you said in mind. Just weird because Dorch stage 1 says it can support up to 600WHP while Spool FX-150 has a decent amount of CC over their stage 1 so would have thought it would have been more than enough for using E50 for 570-600 wheel but guess not lol.

[Eldotbe]

Have got the TU pump And all supporting mods to run MHD ST2 hpfp e30. Dynoed at 518hp at the crank. Feels fast and cars running very well. Been looking at some custom maps lately would it be much faster as to where it’s worth the money to get a custom e50 tune? And what sort of power will I be looking at. I’m in the U.K. so ethanol is quite expensive as we don’t have it on pump. I buy mine in bulk 48 l at a time. Costs around 2.70 per litre. So obviously mixing it at 50 instead of 30 would cost me a lot more money. So would it be worth it.

[OzBMR]

Originally Posted by Eldotbe

Have got the TU pump And all supporting mods to run MHD ST2 hpfp e30. Dynoed at 518hp at the crank. Feels fast and cars running very well. Been looking at some custom maps lately would it be much faster as to where it’s worth the money to get a custom e50 tune? And what sort of power will I be looking at. I’m in the U.K. so ethanol is quite expensive as we don’t have it on pump. I buy mine in bulk 48 l at a time. Costs around 2.70 per litre. So obviously mixing it at 50 instead of 30 would cost me a lot more money. So would it be worth it.

The MHD Stage 2+HPFP E30 tune maxes out the stock turbo.

The TU pump won't handle more than about E37 with that tune/torque/AFR profile from what I've seen of others logs.

For more power you'll need a turbo upgrade, bigger HPFP and custom tune. Even then not much gain going past E40.

[TheFanatic]

Man was this thread a read lol. Anyways with advancements in tuning and other performance related parts the limit that we're seeing with pump gas is only going to increase. That being said there seems to be a general consensus that you run out of octane when pushing 600whp. I've seen guys in the drag racing scene run RaceGas concentrate or somewhat more recently BOOSTane. in the small amount of research I've done into these products they're not the typical parts store "octane booster". With BOOSTane bringing up 93 octane to a 101 octane level and RaceGas bringing it up similarly (more is needed though). My question is then. Why has no one looked into running a higher octane fuel?

I travel a lot so having to blend into an e50 or using e85 would be unreasonable for me. Tossing 6 cans of RaceGas or BOOSTane in the trunk is a much easier option. As of now my best option is to simply run two different tunes. One for raceday and one for commuting.

Links for reference

https://www.enginelabs.com/engine-te...-adds-24-rwhp/

http://motorsports.mybigcommerce.com...gas-ultra-can/

https://boostane.com/product/boostan...ctane-booster/

https://f87.bimmerpost.com/forums/sh....php?t=1506904

[SC_B5X]

Bump. I'm going to try to update this here soon with more information for people, been inactive on the forums for awhile but i'm back and seeing a whole lot of posts about HPFP questions.

[kern417]

Originally Posted by SC_B5X

Bump. I'm going to try to update this here soon with more information for people, been inactive on the forums for awhile but i'm back and seeing a whole lot of posts about HPFP questions.

i'll share my video too once it's posted tomorrow

[SC_B5X]

Originally Posted by kern417

i'll share my video too once it's posted tomorrow

I'll put it in the OP, just let me know when you release it!

[kern417]

Originally Posted by SC_B5X

I'll put it in the OP, just let me know when you release it!

Here's the thread. Appreciate the share.
https://f30.bimmerpost.com/forums/sh....php?t=1776676

[SC_B5X]

Originally Posted by kern417

Here's the thread. Appreciate the share.
https://f30.bimmerpost.com/forums/sh....php?t=1776676

Added video to OP.

[Juice247]

Is this the same part as the upgraded Supra/BMW Pump # 13518631642

https://parts.daytonatoyota.com/p/To...oaAqqcEALw_wcB

[kern417]

Originally Posted by Juice247

Is this the same part as the upgraded Supra/BMW Pump # 13518631642

https://parts.daytonatoyota.com/p/To...oaAqqcEALw_wcB

yes. the part numbers are listed in the OP.

[G.Newt]

Originally Posted by Juice247

Is this the same part as the upgraded Supra/BMW Pump # 13518631642

https://parts.daytonatoyota.com/p/To...oaAqqcEALw_wcB

Save yourself $50: https://www.discountpartsmonster.com...uel-23021waa01

[luca10]

Do you think you can max out a Vargas GC with the spool Fx-150?

[Devil doc]

Does anyone know the B58 XDI-35 hpfp flow specs? It seems to be considerably more expensive than the other comparable hpfp offerings and I haven’t found the flow numbers against it’s competitors. Thanks

[Glemm1970]

Originally Posted by luca10

Do you think you can max out a Vargas GC with the spool Fx-150?

GC - fx180, Dorch 2 . E30/40 Ok.

[G.Newt]

Originally Posted by Devil doc

Does anyone know the B58 XDI-35 hpfp flow specs? It seems to be considerably more expensive than the other comparable hpfp offerings and I haven’t found the flow numbers against it’s competitors. Thanks

It's 1.22 cc/rev for the N55 version so maybe somewhere around there? Couldn't find any specs for it either. It's listed at $2.4k. For that price, it would need to outflow the Dorch Stage 2 and FX-180 by a lot lol.

[Devil doc]

Originally Posted by G.Newt

It's 1.22 cc/rev for the N55 version so maybe somewhere around there? Couldn't find any specs for it either. It's listed at $2.4k. For that price, it would need to outflow the Dorch Stage 2 and FX-180 by a lot lol.

So I was able to find out it flows comparably to a stage 2/spool fx180

[kern417]

Adding some data to the mix. I finally got some dynojet results with the TU pump. This is a great example that you can reference if people are curious about how much HP the TU pump can support. The key to these results is 1. a bigger turbo that can flow more air in high RPM, and 2. finding the optimal fuel mix (bigger turbos will need less E85 to reach it's limits). Hope this helps.

[G.Newt]

Originally Posted by Devil doc

So I was able to find out it flows comparably to a stage 2/spool fx180

Thanks for finding that out. The only site I could find that sold it was from UK and was $2.4k USD including tax and duties, etc. I see no reason to get it when Dorch Stg 2 is $1,700 and the FX-180 is $1,800.

[kern417]

Originally Posted by G.Newt

Thanks for finding that out. The only site I could find that sold it was from UK and was $2.4k USD including tax and duties, etc. I see no reason to get it when Dorch Stg 2 is $1,700 and the FX-180 is $1,800.

The main reason I wouldn't get it is because everybody testing it had poor results. That's why you never hear about it.