Is This The End For Port Injection? | BMW N54 HPFP Overdrive Kit!

[@ryanmoore7927]

Such an underrated channel. Been loving the vids!

[@santtu9169]

I found this channel after I bought my first beemer 9 months ago and this is the guy I respect and follow.

[@Spoolzone]

@@santtu9169 absolutely agree

[@ryanmoore7927]

@Fletcher Hal stfu stupid spammers 🤣

[@bimmerhacks]

@@santtu9169 100% with you. Great explanation and camera positioning.

[@all4bspinnin311]

Another great advantage is that this can be used on the 535i and 335i x drive which traditionally could not use the VTT shotgun pump due to the size of the power steering pump. Also, since the E series N55 shares the same pump as the n54, we can use the overdrive on those cars as well :)

[@von...]

the line you bend around 14:28 and that stock HPFP -> fuel rail line have similar issues as a result of the manufacturing process/limitations. That why the twisted tuning guys released the high pressure "rubber" (or whatever material it actually is) line to replace it that bends while closer maintaining the same ID (internal diameter) as if it was straight compared to the hard metal lines that definitely suffer losses to the ID in bends. Getting a full replacement kit made for the line you had to bend yourself would be a smart move for Spool Performence to get dialed before the consumer release. I am super hyped on this product, as someone with an XI N54 this is really a game changer since I have been avoiding PI for a while now, but now I am hopeful that I can finally run full E85 with my Pure stage 2+ hi-flows DI only!

[@setterlee]

dude this channel is gold... any work that cross my mind to do with my car is documented here...!!! thanks for that!!!

[@kuraryuX]

I love how he re-explain on all the how To's even though he has a video of each different install

[@mikebrooks447]

Favorite n54 DIY channel hands down. Surprised theres not more subscribers.

[@flavianngabriel4337]

It.s because he "doesn.t take it to the street" seriousely now, ppl would love to see some action besides what happens in the garage

[@BMWTurbo]

Thanks for your clear no-nonsense procedure. I just started replacement of my starter motor on my 335i and found your details to remove similar parts very helpful. Your method and comments to clean the carbon from the intake valves appears better than my spray and scrap approach. I used a wet/ dry vac to remove cleaner and carbon pieces.

[@messi13578]

This guys’s going to make me go broke with all these goodies😬. Love the channel bro, I appreciate your content.

[@Vgk36]

Fuckin for real 🤪

[@petergrabsch3736]

Without doubt the best diy n54 videos on KZbin! very informative, easy to follow & descript! Well done I'm a recent but now loyal fan from Brisbane Australia...

[@zoober2217]

Your videos are totally useful! If that work okay, that will be the easiest way to upgrade your fuel system to 700hp. I can't wait your next video!!! Greetings from Bulgaria :)

[@devynhenson9206]

You do such a great job explaining everything, keep up the good work!

[@nickolascain2994]

Nice! way easier install than the alternate belt overdrive offering. Thanks for always sharing helpful info man! Best of luck on dyno day.

[@shawzymusic]

Took me an hour to install thanks to your video. Thank you sir!

[@romeosalas8211]

Been waiting on some more info on this Overdrive! Thanks man

[@VehicularDIY]

Yeah from what I can tell there was quite the build up, the owner of Spool is a cool guy and was finally ready to have this info go public as the kits have been holding up well for a number of beta testers. I think their is around 50 people.

[@romeosalas8211]

Sick can’t wait for your update on how it’s working and Dyno Number keep up the great work

[@drratt]

I'm surprised no other company like fuel it, vtt, precision raceworks/ bmp thought about this type of mod to the HPFP earlier but nevertheless I'm happy to see something so simple release I JUST HOPE IT'S RELIABLE AND KEEPS THE HPFP RELIABLE as well

[@tv-vk3fs]

They did, VTT has had this for years

[@rodgazinya]

@@tv-vk3fs was about to say. VTT has had the shotgun and dbl barrol shotgun kits for years. And port injection has proven to be better.

[@tv-vk3fs]

@@rodgazinya port injection is definitely not better, port injection has been proven to blow engines when the dme is cutting fuel port injection keep flowing, using stock injectors is way safer. I'm using vtt double barrel kit and I'm making over 600hp

[@timcanales3447]

@@rodgazinya That's absolutely wrong. All the highest hp n54s use upgraded hpfps, use meth to cool the intake charge. Nothing is safer than DME controlled direct injection.

[@SupraSav]

Ah, the things we do for big street power. It's been fun owning an N54 for the past 5 years, expensive, but fun. I probably wouldn't change much if I did it all again, but damn I am glad to be selling and going to something more handling oriented and less than half the power - and half the maintenance with prices that are half the part cost.

[@ForzaPulls]

🤔…..The n54 is beyond cheap to maintain if you wrench 🔧 lol

[@o0cscore0o]

I’ve been waiting for this to come out. I’d rather not run PI and just stick with DI. Trying to keep it simple and less points of failure. Recently converted over to Speedtech bottom mount with a PTE 6266 Gen 2 BB on an e30 tune. I’d rather go straight e85 and not mix. Can’t wait for the results and when it’s released.

[@Spoolzone]

so sick man i cant wait to hopefully grab one of these for my e92 build! Your channel has helped me a lot, thanks man

[@machtschnell7452]

I think you may be the first on You tube with this pump. Hope it proves out.

[@mxracingunlimitedltd7784]

Macht Schnell that's exactly what i was thinking

[@weebz4748]

it's not a new pump, its an overdrive for the pump

[@danielpacurar2644]

This overdrive unit has been sent out to other beta testers here in the pnw. Hoping for great results!

[@machtschnell7452]

@@weebz4748 Correct as he said in the video. It will be interesting to see how the lubrication holds up on the planetary gears as that is a new concern the directly driven pump did not have.

[@machtschnell7452]

@@danielpacurar2644 So what is the recommended lubrication interval of the planetary gears?

[@Pe3Cee]

I love how your engine is super clean! I noticed you don’t have an oil catch can and yet your TB looks amazingly clean, not one drop of oil...

[@VehicularDIY]

Thanks! Yeah this engine surprises me, I can go 7K miles between oil changes and I don't need to add a drop of oil. Considering it's got 192K miles that's impressive, also when I had the turbo's off the exhaust ports were dry and it looks like it's not burning any oil at all.

[@Pe3Cee]

Vehicular DIY that’s amazing! Wish I can say the same thing about mine. Recently replaced valve cover with new gasket and bolts following your guide as I had a leak from there for a while, (carried out the job 3 times - 3rd time is when I bought brand new cover with bolts - as after running the car a little while, smoke from manifold and a small pool of oil accumulating on the oil tray that runs along the head). No more smoking now and less oil smell, still getting a small amount of oil accumulating on that tray where the boost solenoids are, I’m just hoping it’s residue, otherwise I don’t know what it can be. I physically can’t see oil coming from between the gasket right above where the oil is accumulating so no idea and I was super careful making sure it sat flat and torqued down with correct pattern. Anyways, I enjoy your videos, keeps me motivated to keep attacking maintenance on this car, I’ve been a long subscriber!

[@shortz9604]

Can’t wait to get mine on the exit list

[@luideluna9692]

Just discovered this channel! thank you will keep following your DIY vids - thinking about getting this here Im currently in 135i 465whp and ran out of fuel going doc race soon

[@SmileyTribe]

Looking forward to the next video!

[@jessicaandtrains7768]

How has this been, 3 years later? Looks like they create alot of noise and vibration and I wonder how the hpfp held up overspeeding?

[@altink8823]

As always great content, really looking forward to the test with the new tune

[@DanielJames7.7.7]

Great vid, love watching any good quality car work

[@n54power21]

N54POWER😁👌

[@walkereurosport944]

Love these videos ❤️ ... Sooo informative ... " The More You Know " ...

[@knightrida6829]

appreciate your clarity bro

[@dbnpoldermans4120]

Love to hear more about this!

[@fujifast]

Hi! Just want to ask how your spool overdrive is holding up? Been using mine also for 2+ years. 1 thing I don't like about it is the loud chatter.

[@MrNicoe36cabrio]

Wow. That's great news!

[@joshuaauten1300]

Can you please provide update videos for this and your new turbos regarding reliability? I want to install this along with Dynamic Autowerx's turbos, but I'm not sure if these will be reliable over time due to controversy over these products on e90post. Thanks!

[@abonares]

Nice vid. Got a Helix OD on my early e series n55! Loving it man, definitely a better option than PI imo.

[@dustinbyrd832]

did you notice any type of rattle from the gears on startup

[@ryank5373]

Your videos are really top notch. Thank you for taking the time to put this together! You are definitely putting out a level of content well beyond your current subscriber count. I wish you many new subscribers!

[@mashinajoe]

I use VTT Double Barrel Shotgun. Full E85. Never liked port injection. 2 different fuel systems is too complicated.

[@kylerwinters]

Also alot more failure points. When port injection systems fail, they fail bad.

[@alexandermuellerpersonalac9769]

I truly appreciate that you took the time to make this video! However what I cannot figure out is what filter am I deleting to add the 10 Micron unit? Yes I have the engine end of the 10 Micron unit coupled on to the metal line under the starter, and I've traced the OEM black braided fuel line down to a mounting plate down near the footwell. Once I figure out how to unplug this original line and plug the white clipped end of the filter line in there, it also leaves questions of how to cleanly install the filter unit. Are people generally leaving it in the engine bay or trying to tuck it beneath?

[@patrickbrennan4012]

Any further instructions available for the 10 micron inline filter? About to install this but can’t determine if the car needs to be lifted in order for the spool inline filter to be fitted properly with the helix.

[@Altezza1999]

Does it increase the likelyhood of failure by 4 or are the replacement HPFP's just better?

[@brakthru2]

I'm trying install the billet plate. Did you remove the vacuum housing plate and use the billet in its place. It looks like the vacuum plate is still on in your video.

[@Breadmaker42]

Between this dude and m539_restorations I’m getting my bmw fix

[@brakthru2]

I appreciate this video. I'm installing the Helix in my driveway but will need to take the low pressure line to a shop that has the vise. Would you estimate a 30° bend out and down or less? Also, does the manifold gasket need to be replaced?

[@JakeSDN]

Thanks for the new content. How have the new Turbos performed, I was waiting for a video on that.

[@VehicularDIY]

Not to sound too overly enthusiastic but they've been awesome. Loving them so far.

[@JakeSDN]

@@VehicularDIY Thanks for letting me know.

[@zomgkat15]

“K so that clip went flying and I don’t feel like finding it rn” me 💀🤣

[@kevinhuynh303]

Did you ever post the dyno video and results on direct injection?

[@micraw714]

Oh man I'll be a beta tester! In fact I'll be the master beta tester! 😉 nah, excited to see the results though.

[@euczekillca]

Do you have any results before and after helix installed? Power and pressures? I am thinking about order, just would be nice to know, how it all goes. Or is there any video with it? I cant find anything. Thanks Matthew Czech republic

[@leetoburrito]

Aren't you supposed to replace the gaskets every time you take the intake manifold off? I'd plan on doing that while I was in there if I was doing this mod.

[@rob.x5479]

Are we attaching the old high pressure fuel pump to this upgraded one or was that just a back piece?

[@evertythingtechrelated9715]

thanks for the info. You have such a soothing voice, can i get a recording of you singing hush little baby, so I can play it to my son when he's crying? lol just kidding.

[@VehicularDIY]

Not the effect I was going for but thanks? Lol

[@vp5]

Hahaha

[@tunerworld]

Nice I just installed mine. I got the 3x. Any problems so far? Do you have the little "Blender" noise issue with yours?

[@evansternicka]

Spool hpfp upgrade update 2021?

[@johnM-rc7cs]

8 month update review. How has your Helix been holding up? any issues? have you ran full e85 or just mixtures?

[@VehicularDIY]

Hey check the most recent video on my channel.

[@Zaynutty]

What filter did you install? And also did the low pressure hard love come with your kit?

[@daltonstrause8528]

Is the helix still installed and well? I keep hearing horror stories on the helix! I already installed mine and I’m nervous

[@oceansidepirates23]

finally!!!!!!!!!!!!!!!!!!!!

[@Gendo3s2k]

It may speed it up, raising pressure, but won't you run into problems with volume?

[@anthonykosters7874]

Your vacuum plate holding up? I noticed your install was prior to the Billet 6061 plate being included with the Helix OD. I'm seeing a supporting block mount is in development as well. Also curious why you didn't go for an inline Fuelabs filter rather than their in-HPFP solution.

[@VehicularDIY]

It's fine so far, I'll get the upgraded fuel line and change out the plate eventually. I just went with the filter that Spool provided.

[@samuelrogers5796]

have you had any problems with the inlet metering valve actuation?

[@juancarlosathome101]

Ok ok ok... okokokokok.... I'M FREAKING OUT HERE!!! :))))))) For real for REAL!! Are you 100% SURE in EVERY POSSIBLE WAY that this will work for an N55 Engine??? I've seen a couple of mentions in the comments affirming this... I have an N55 (bow down to the N54 in terms of power possible for sure, but I'll take reliability over power any day! ;) -- if this kit will work, I would love to be able to use it! Circumventing a port set up seems SO much easier for the option to go E85! My goal is 500 WHP because I still have a stock clutch with my manual tranny. To that end, would you happen to know what the WHP limit would be on a stock manual clutch? I know that the price-per-horsepower increases exponentially as you go up the curve, and I would really not have to be forced to replace the clutch yet with a higher performance version--hell of a job and lots of $$ on parts! My car only has 57k miles on it, so the stock clutch should still have quite a bit of life left. But I was just curious about this in case you had come across the figures--I'd love to take the clutch to its max power-wise! :) Anywho, my stock HPFP is just now starting to go on the fritz--this would be a PERFECT upgrade, and I cannot imagine that the cost would be anywhere near going port, with the need for a whole new manifold, extra injectors, extra tuning/modules, etc. and the added risk of the port tuning being off just enough to blow the engine!! I have several questions: --Will standard injectors work? Any recommendations as to which to get/from whom? --How would this HPFP system work with tuning the AFR on the car? I know you mentioned direct control from the ECU and a couple of valve setting tweaks and pulling out that stock filter in the HPFP to increase flow, but really? Is that it? Would it be that simple--nothing else needed? XD XD --Pros & cons of 1-to-3 vs. 1-to-4 rotation options other than E50 vs. E85 and power gains respectively (if any) --The in-line filter supplied by Spool: is it replaceable/a maintenance item, and as such, can it be mounted under the car in such a way that it remains easily accessible to allow for easier replacement? --I have a FuelIT LPFP upgrade, will this be compatible with it? --And the last is longevity of the HPFP under these new parameters, but I suppose time will tell on that one... I am currently in the process of replacing as many components as possible through FCP to get the lifetime warranty!! This is literally the same as replacing the HPFP alone--pretty much no extra labor, which is just so great! And as a closer, your content is GREAT!! Dude--so informative and the fact that you're taking the risk on these new types of items as a guinea pig is really inspired, helps out the culture SO much! Thanks for what you do and keep it UPPP! ;)

[@VehicularDIY]

What year is your N55, the early N55s shared the same pump as the N54 so it could work on your car.

[@juancarlosathome101]

@@VehicularDIY 2011

[@DSD1.0]

Sweet!

[@chavizard2374]

Hi mate, i have a question. You need update the pump inside in the back seat before install this one? Thanks.

[@clivechalres4183]

That's A lpfp this is a hpfp so would be best doing both

[@quik5ltr]

Excellent work as always, best N54 content around. Does this need specific tuning to take advantage of the extra fuel flow?

[@VehicularDIY]

Thanks, yes typically you would only need this with upgraded turbos so you'd be working with a tuner anyway. If you installed it on a stock turbo car in preparation for turbo upgrade you could without needing a tune as the car would just bleed off the excess pressure but then you're putting more load on the HPFP for no real gains so I'd recommend people have it ready to install at the same time as the turbo upgrade and to clean their intake valves while they're in there.

[@misterp4047]

Ok VD so tuning is needed when installing the Helix overdrive because i have the same upgrade turbo's like you from Dynamics Autowerks. My tuner is going to be WedgePerformanc

[@brakthru2]

Is it true, you may have to lubricate planetary gears? I thought the unit was maintenance free.

[@UVIBBGCLAN]

any problems with this so far?

[@htcustomz]

Which tuner did you use for your setup? Currently upgrading my twins as well. And possibly running the motive flex fuel option with mhd.

[@VehicularDIY]

Wokring with Wedge Performance. Still on V1 of the tune, going to install some diverter vales and try for 28 PSI on V2 to see how that response. If all goes well I'll ask them to dial in the timing and take it on a dyno. If something is off like my transmission etc I'll dial back a bit.

[@bluebook944]

Just for future reference, I installed this plumb-back kit from Australian manufacturer TurboSmart www.turbosmartdirect.com/Product-Categories/BMW-Kompact-BOVs/Kompact-Plumb-Back-KIT-BMW.html By far the neatest bolt-on kit on the market - proper formed plumb-back pipes and really good quality units. Designed for the BMW quick-connect standard charge pipe, but I just cut the input pipes down a bit and glued/clamped the silicone pipes from my alloy charge pipe to the bottom of the valves. (Not a shill-link - I just think they're very good)

[@Linoge279]

Does those part will increase the reliability of the HPFP? even with stock power

[@ALEX.THE.RUSSIAN]

Sir how much power will you make with the turbos? Ill be buying them soon as well in couple months and this hpfo as soon as its out. How much does this hpfp would run about?

[@VehicularDIY]

I'd say 550 maybe close to 600 WHP.

[@rodgazinya]

What makes this different than VTT's Shotgun or dbl barrel kit? Which Port Injection has been proven to be better then.

[@VehicularDIY]

Ease of installation primarily, only if your power goal is north of 700 WHP would I say that port injection would be better but really it's your only choice at that point and you're near the limit of the bottom end. I get your viewpoint but I guess this would be targeted at more of an average consumer that want's less than 600 WHP with upgraded twins vs a single turbo upgrade pushing 750 whp. For the people that want 550 WHP with automatics and upgraded twins this would be easier and safer if they're not looking to break records. BTW I'm trying to provide unbiased advise, I'm not getting affiliate money from this and I paid for this.

[@badasss1]

Where to find this part? Can’t see on official web page spool. Can you give direct link on the part ?

[@covingtonrace1]

What actually goes wrong with the original pump? A washer? A seal? Shaft play? Bearings?

[@Bo12346hhgfgdg]

Great video. Is this process the same for the n55 e90?

[@dyo228]

You should be able to take a peek at what pump you have with a flash light and maybe moving some plastic away. Search for images on both pumps and compare. I have the F series hpfp on my 2013 E92 N55.

[@Xbox360Player350]

Awesome video, very detailed. I just ordered this kit yesterday so hopefully I’ll be getting it soon. I’m curious about where you mounted the new larger filter though. Is it under the car behind that plastic cover you unbolted? And is a new fuel line necessary since the filter is being added? If so did it come with the kit? Thanks!

[@xansoxys]

bro upgraded his turbos and ran out of fuel , bro you need a upgraded lpfp not hpfp i mean more power to you why not install a upgraded hpfp but jus sayin

[@dominicoler1990]

I need a tuner too tune min 2007 335XI I have the spool HPFP over drive and can’t find a tuner too tune me on a awd Dino also but I. Keep misfiring on Cylinder 6 but cars still runs lmk get back ?

[@norcal_kc_ross3596]

Love your video man if I live near you I’ll pay for you work on my e92👍

[@rafaeldiegonavarro]

I dont think that the hpfp is designed to go faster then it was designed to . but we will see .

[@jonathanpalafox615]

I’m stuck In my build I need injectors is there any other way I can get around it or cleaning or know anyone else who manufactures them or do I really need to spend 1300+?

[@n54nezz64]

U can get index 12 for 1100ish

[@BartjeMssls]

Really cool to see you do al the upgrades. Just wondering though, aren’t you afraid your gearbox won’t hold up?

[@VehicularDIY]

Haha yeah I guess I'm ready for it to go, so far so good.

[@BartjeMssls]

Vehicular DIY Haha ok, so you next video might be: How to rebuild your 6at at home.

[@mxracingunlimitedltd7784]

Awesome video. First time ive seen this part by a different brand and a nice kit with fikter as well. What WHP do you think is available running full E85, with the 4xhfpf OD kit? Stage 1-2 stock frame TT's?

[@VehicularDIY]

Thanks, probably around 450 whp max?

[@joseph4333]

Which one u recommend Helix overdrive or PI?

[@twinscrolled]

Will work on E series N55's before 03/12 as well.

[@dyo228]

You should be able to take a peek at what pump you have with a flash light and maybe moving some plastic away. Search for images on both pumps and compare. I have the F series hpfp on my 2013 E92 N55.

[@mxracingunlimitedltd7784]

Off topic, where is the oem fuel filter located and is it replaceable? Is it a Maintenance item?

[@zsquints]

Right before the hpfp and no it is not

[@crazylunitic1]

Hopefully something comes out for 2013+ N55s that doesn’t cost an arm and a leg.

[@DJ-pz4ur]

Did this kit effective and has there been any issues with it to date?

[@geemac9533]

Any updates you are able to share? How many miles have you put on the OD unit? Any issues tuning or with the actual HPFP itself? In the market for one of these. Time will tell!

[@VehicularDIY]

I've put about 2K miles on it, the tuner did play with the volume control valve tuning to open it up a bit more, pressures were dropping in 4th on the dyno. The HPFP is still working fine, the OD unit works fine also. You get a bit of chatter on first start up until the motor settles down but it goes away after a minute or so. So far so good.

[@jmp6534]

Im running flex fuel from motive. How will this benefit. I switched out my short fuel line for the new one with ethanol sensor..

[@VehicularDIY]

You planning on upgraded turbos?

[@jmp6534]

@@VehicularDIY yes eventually. The ones I have are stock only about 15k miles old. They got replaced by BMW. Im running fbo stage 2 fuel it lpfp and mhd. Im limited to about E60 Max due to not having port injection though... An alternative to port injection would be great so I can truly Erin 100% flex fuel

[@Futemire]

Who down votes these videos? I mean come on, really?

[@boostjunkie27]

Vtt fanboys

[@justme8410]

Addam Boord oh you the hero bitch boy huh?

[@mike77-]

Will this work on an automatic 335i xdrive.?

[@typedrew]

The best

[@dustinbyrd832]

I added a helix to my car today and seems to have a rattle that gets quieter when the idle comes down but loud on start up ..do you have this issue too ?

[@VehicularDIY]

I noticed a slight bit of chatter after installing it that was only there at a specific RPM and actually when my AC was on so I think if it happens to fall at a very specific RPM it could happen but that was after the first day of driving. I've been driving on it for a while now and get no noise at all under any conditions. I think it might have a bit of a break in period. I'd say you should expect the noise to subside completely, if not talk to Spool to get their feedback.

[@mattbeard9567]

Okay I went to spoolstreet to purchase this and can’t find it. Is this not available yet ?

[@rynoryan859]

no its not been released yet. soon hopefully!

[@paddoqclub]

How’s your hpfp holding up since the install? Also did you ever dyno or retune for the helix OD? Can you share some updates regarding that? Much appreciated and respect ✊

[@VehicularDIY]

It's surviving so far, have about 3K miles on the helix. Yes I dynoed at around 540 whp.

[@paddoqclub]

Thanks for update. I just reached out to spool and they’re sending out the billet housing and reinforcement bracket. They mentioned they’ll be sending out to early customers that didn’t initially get that. Be on the look out. Thanks again.

[@toweringtv4426]

Hi, how has this HPFP worked out for you?

[@BigAl22]

Any update for this? Trying to decide between the 3x and 4x!

[@VehicularDIY]

Still have it, I'd go 3x if your power goals aren't too high.

[@scottxp800]

The actual overdrive ratios are 1.3:1 Helix, 1.4:1 Helix Xtreme. The Helix will support up to 600whp worth of flow on full e85 and 750+ on e60 mixes. The Helix Xtreme will support 750whp worth of flow on full e85 and 850+ on an e60 mix or other gasoline blends. The Helix is available now, the one in the video is still being tested for longevity. spoolperformance.us/index.php?route=product/product&product_id=71

[@9595david]

Do you have to replace the intake gaskets every time you remove it?

[@fohatadri]

If intake gaskets are good, they shouldn't be replaced. BMW says that they are reusable to some extent.

[@leeweiye4771]

Is this works the same with like a fuel it lphp upgrade? Do both stackable for even more fueling?

[@VehicularDIY]

Yeah you would upgraded your LPFP first and use this on top.

[@NardoGreyRam]

@@VehicularDIY so yours is upgraded? Or it can be installed on the original LPFP?

[@akaTRAPxx]

I hope this will work with AWD models since the double barrel shotgun mod doesn't work with XI/xDrive.

[@VehicularDIY]

Yeah it does work with XI models.

[@akaTRAPxx]

@@VehicularDIY FINALLY we're not left out. Full E85 here I come!

[@NardoGreyRam]

Hey man, a great new idea, I didn't know something like that existed until now, did you consider meth injection for more fueling? It also has advantages of cooling and cleaning the intake valves, but I don't know how much more hp will it give you with the upgraded turbos I installed similar turbos to yours but still MHD stage 2+ and I am not sure the next step for me.. bec6i know to get the most of it I should upgrade the fuel system or go Methanol injection or port injection..

[@VehicularDIY]

Yeah I've heard good things about meth injection, for now not sure I'd need it with my power goals.