T51r turbo mod on my RWB 911 sucks! Porsche 964 Turbo with EFR8374

I was always worried about swapping to a modern efficient Borg Warner EFR 8374 turbo & losing a bit of the 'drama' the previous oldschool HKS T04s turbo added. So I've bought an OCD works T51r modified turbo compressor housing. In this episode, I chuck it at the car & see what it sounds like.
►Collecting my 964 in Japan video here: • Japan Road Trip Collec...
►Part one of the handling issues video here: • Widebody RWB Porsche 9...
►Part two of the handling issues video here: • Widebody RWB Porsche 9...
►The rundown video of what I've done to the car since collecting it in Japan • RWB Porsche 911 964 Tu...
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►Follow @PhilMorrisonDW & @driftworks on Instagram
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►www.driftworks.com/

[@driftworks]

If you haven't seen my IG. There's a short clip of this that I should have put in the full-length vid 😄 . - PhilMorrisonDW

[@rx55ex]

I'll take that front housing if you don't want it mate

[@kingdaddy328]

I like how you get carried away with everything

[@driftworks]

🤘

[@mrmoss149]

Anyone who paid attention would have noticed how the exhaust was run with the wastegate & turbo outlet from the previous segments, but thanks for showing , Phil. Cheers

[@driftworks]

👍Cheers

[@abc-bm8pl]

9:21 @Driftworks The noise is from the sharp pointed shape of the anti-surge divider. The shape of the anti-surge port down inside the compressor (just below the leading edge of the compressor) has no effect on the noise. The taper of the ocd works T51r mod is very shallow and obviously works, but even a fairly "blunt" taper will make noise. The stock housing could have been worked to an acceptable shape without the need to completely bore it out and fit an insert. I'm not entirely sure why they don't do that, but I do know that Borgwarner don't machine very far in to the anti-surge ports on the EFRs, and the casting can be a bit poor down in those tight spaces. If you don't like the noise, take your stock cover next door and square off the leading edge of the anti-surge divider in Craig's lathe, that'll take care of the bulk of it.

[@driftworks]

Thank you 👍

[@dwndraft9805]

Love the iterative approach to getting it right! No compromise. 👍

[@driftworks]

👍

[@michaelvantonder]

Love the Porsche, and this channel! It's great going through the comments and seeing you interact with all of them. Thanks for the content and keeping me sane during this lockdown. Also, yeah the whistle is too much, I'm sure craig can find a pleasant middle ground with the original housing

[@driftworks]

Thanks man. 👍

[@jamest5149]

Love the heat shields and little details, well done Phil.

[@driftworks]

👍

[@mattmanslim]

Thanks for the update on the filter, Phil! When I asked about air flow initially, I wasn’t aware that there were openings like that in the arch liner. Looks like it’s coming along nicely!

[@driftworks]

No probs. 👍

[@rangeroverroy]

I actully like the sound. She sounds like a fighter jet..awesome upload as usual.

[@driftworks]

🤘

[@fidelarreola5422]

Big fan of all ur cars for years Love the csl on the lift ...keep up the awesome work

[@driftworks]

Thanks, will do! 🤘

[@Smokkedandslammed]

Sounds so good! Heat shielding looks trick 👌 Super excited to see her fully rip with all the new gear

[@driftworks]

Thanks! 👍

[@visuallysignificant2812]

The sounds your 964 is producing is insane, must put a great big smile on your face when you get behind the wheel and unleash!

[@driftworks]

👍

[@zhu1921]

Sounds Great.. Awesome fabrication work on the pipe work and heatshielding.

[@driftworks]

Thanks man.

[@davidjohnrees]

I was so relieved when you said you weren't a fan of the whistle. You had me worried for a second. Amazing episode though! The lows are just as important as the highs for us viewers! Thank you!

[@driftworks]

Haha, have faith in how old I am 😄

[@peterjeavons8476]

That promodet exhaust is a work of art

[@driftworks]

😎

[@Satyr910]

I think it sounds pretty good, it doesn't sound ridiculous through the camera's microphone but in person it probably sounds different and it's your car so you need to do what ever you want with it. Great video as usual!

[@driftworks]

Sounds worse IRL.

[@geneva760]

I like the 'smart; thinking' with the wheel balancer cone Phil - always makes you feel good doing stuff like that. HA - our 5" exit on our race car turbo used to drive people INSANE when I was warming the oil up in the pits. HA - heat-exchanger build is the next project I look forward to - HA - no more air-con demist in the middle of WINTER and some warm toes. Have a nice and SAFE day all. CHEERS from AUSTRALIA.

[@driftworks]

🤘Thanks man!

[@4l04ever]

Love the turbo whistle!

[@driftworks]

😁

[@finlay230]

Sounds friggin ace man 👌👍

[@driftworks]

👍

[@dantregale218]

Actually does sound like one of those turbo whistles for the exhaust!! I’m glad you said it! Top work tho!! That whistle

[@driftworks]

👍

[@jritchiejritchie2687]

It's a lovely car whatever you do to it Phill... In fact all your cars are really quite special.

[@driftworks]

Thanks 👍

[@chadwilbur5364]

Nice job with the repair.

[@mikedowland9949]

Mate that sounds fucking amazing I wouldn’t change it!

[@driftworks]

😁

[@EugVR6]

I love the noise of those old 911, its so mechanical and raw 💪🏽

[@driftworks]

👍

[@evolife1044]

@@driftworks pile of shit

[@dennisb5319]

Trial and error is part of the fun when diy fettling, nice work.

[@driftworks]

🤘

[@YellowDieselGolf]

OMG your reaction! Classic. :D Keep up the good work Phil.

[@driftworks]

😄

[@stuartsmith5154]

Loving the no compromise approach towards 911 perfection. Looking forward to the next instalment, removal of whistle and mapping etc. Still believe this is one of the nicest looking RWB / Promodet cars in existence.

[@driftworks]

Thanks man.

[@davidthomas7424]

I could hear the difference job well done 👌 once it's mapped properly it will be awesome

[@driftworks]

👍

[@spunii8248]

Sick video lads

[@driftworks]

Thank you 🙌

[@Franksey180]

Such an awesome car its difficult to not get carried away and just like it generally. That turbo sound is a bit too close to the sound of a kid's whistle though, reminded me of something you might hear at an old school circus when the clowns come out to that famous "calamity" sounding music, I think called "Entry Of The Gladiators". Quality of your work (and Craig's work) on the car is spot on though, looking forwards to the next updates on it.

[@driftworks]

😄

[@freshkingf_k161]

WHAT!!!!!! How can you not love the sound knowing you're bout to hit full boost!!!! That's music to me!!!! 💥💥🎉🎉

[@driftworks]

Because it's annoying when your just driving around. It sounds like a diesel truck.

[@mattb4353]

Def got a proper whistle now. I like it.

[@driftworks]

👍

[@hevendranarayansamy2793]

Lol. Nice work Phil. I like the determination for perfection 👌. I thought it sounded ok but the whistle, maybe the other turbo needs some rework

[@driftworks]

Thanks 👍

[@M369RRR]

Loving the turbo whistle 👍🏻

[@driftworks]

Can I ask a question without appearing rude: How old are you?

[@M369RRR]

@@driftworks 41. TBF I made the comment before you got to the end. I think the whistle compliments the character of the car - not exactly subtle. Respect your decision to keep it more subtle though - I image it could get wearing. I have an NA 964 so my sound is dominated by the intake noise which is enhanced with a drilled airbox. Exhaust is sport cat, cup pipe and standard rear box so 110+dB but low pitched so not intrusive.

[@M369RRR]

Oh and I used to do a lot of miles in a Defender 300tdi which may explain my like for a bit of whistle

[@lowfinger]

Quote, 'who knows, well lots of people just not me' no BS, great content.

[@driftworks]

😄

[@markvincentjamesmason4812]

Been looking forward to this episode..

[@driftworks]

👍

[@stevelongmore7836]

When Phil switched it off at his house sounded like a jet turbine winding down from a flighter plane but that whistle is a bit loud

[@driftworks]

👍

[@jamesford3549]

I was really interested to hear the T51R mod, when you mentioned it a while ago I thought how cool it would be, but imo it Sounds silly. Welding up the anti surge sounds like a better idea to me! Great to see it back together though.

[@driftworks]

👍

[@ltnaldoraine2437]

these kind of vids are the best!

[@driftworks]

👍Thanks

[@technique275]

All bolted up it looks good, the sound is tinnitus inducing though. Looking forward to what's planned next. Atb.

[@driftworks]

👍

[@6000maz]

Fooking awesome phil 🤜🏻🤛🏻

[@driftworks]

👊

[@bellathecat8832]

Wow, you drove right by where I live. It's funny ive never seen or heard you're car before.

[@driftworks]

👍

[@barfmeister8509]

Insane sounds 😎 you could almost call a taxi with that whistle....

[@driftworks]

👍

[@kenrossaukrsa]

Apologies for the previous videos exhaust outlet comments , was teasing you again because you had previously mentioned about 50cent commenters , it drives like a rocket now , I once changed my paper cone airfilter to the material type one because of that wheee whine Bmw diesel noise hehe

[@driftworks]

No worries 👍

[@BuryJake]

That house looks stunning... super jealous

[@driftworks]

Thanks 👍

[@wilsonyang2209]

Sounds great!!!

[@driftworks]

👍

[@stuf3804]

Sounds awesome - what an improvement

[@driftworks]

Haha, no the conclusion I came to.

[@AshleyCaunt]

Pleased you explained the left hand tailpipe as I too thought it was a dummy as your silencer goes straight to right hand one, but when you started it in another video it smoked from the left one, was very confusing 😂👍🏻 loving all the builds you guys have going on currently, plenty of quarantine content is never a bad thing 🤙🏻

[@PeteHSM]

It's for the wastegate

[@AshleyCaunt]

Pete I know, I said I’m pleased he explained it..

[@PeteHSM]

@@AshleyCaunt Right my bad. Entirely misread that

[@driftworks]

👍

[@pugz16v]

Sounds amazing

[@driftworks]

👍

[@Adrian-rr4ii]

What a beautifully mean piece of kit

[@driftworks]

Thanks 👍

[@jacksimpson3189]

Sounds awesome to me Phil, driving through Brum in something interesting has got me super paranoid but at least you can dispatch most in the Porka

[@driftworks]

👍

[@jdmspacebuggy]

I was laughing already when you drove it home, then you commented exactly what I was thinking 😂, less of whistling and more turbo surge noise would be ideal

[@driftworks]

🤘

[@garrydavis3475]

Sounds amazing no big dumps though enjoying your process of elimination Phil

[@driftworks]

🤘

[@keithflynn5651]

17:55 - The Ebay turbo whistle valve things are exactly what I was thinking of lol

[@driftworks]

😄

[@Dave-mv4jx]

Awesome car I’m sure you will get it sounding right 👍

[@driftworks]

👍

[@benilko7430]

Agree completely on your thoughts about noise, might pay to fit the std comp cover and take it for a drive and see how it actually sounds on the road. Might be pleasantly surprised?

[@driftworks]

That's the plan 👍

[@chrisg4rr377]

Been waiting for that exhaust to be shown. Makes much more sense now. Thumbs up

[@driftworks]

👍

[@TheBondy666]

It sounds dope af Phil what are you on about!?! For the love of God keep it

[@driftworks]

The whistle does not sound dope. Everything else about it does.

[@ginacalabrese3869]

I believe the middle exhaust outlet on the Ferrari F40 was for the wastegate. Using the left pipe on this car for it is pretty cool.

[@driftworks]

👍

[@seand6602]

The car is a beauty. Just look at her! Look at the wing! ✈️ The car as enough image and pedigree to "pull off" any sort of turbo sound in my opinion. Great job, and move those back wheels 👌

[@driftworks]

Thanks. The car can pull it off. I just don't like it.

[@seand6602]

@@driftworks Stick it on the Aston Martin 😂

[@fuxxzzr8629]

Love the program😻👍🏻👍🏻

[@driftworks]

👍Thanks

[@farturinn]

This intro never gets old!

[@driftworks]

🤘

[@rickc1798]

Sounds like the batmobile from batman 1 when you turned it off 🤣, awesome work tho

[@driftworks]

😂

[@niel80]

I love it!

[@mrclown7469]

It's actually impressive how quiet the (unmodified) Borg Warner is from an engineering point of view. Even with a metal intake pipe and a pod filter it's as near as makes no difference to silent.

[@driftworks]

To be fair it will probably sound.a bit more rowdy when I put it back on to test properly.

[@adcuz]

Such a cool car and project.

[@driftworks]

Thanks 👍

[@mpwr321bhp]

Answers my previous question about the surge ;0) Good public service announcement for what not to do on your cool new turbo. At least you tried, bold. ;0)

[@driftworks]

👍

[@danbourne11]

Deffo give the standard housing a go as it is Phil!

[@driftworks]

Yep, for sure!

[@RainMakr]

Makes me want one so much

[@driftworks]

😄I mean it also needs a pretty amazing sound engine as a backdrop.

[@TheV6corsa]

Awesome car, love it

[@driftworks]

👍 Thanks

[@garrydavis3475]

I would love to gold plate the beautiful pipe work underneath also would help with cooling as you know you own a truly amazing thing of sheer beauty

[@driftworks]

👍

[@driftmonkey3646]

I really liked the sound of the old broken turbo 😬

[@driftworks]

And me 🤓

[@ecarasig]

My guy you are now ready for flight! Glad you showed us the exhaust routing of the Promodett one off. Those bends and merges are all very smooth in transition very, very nice. That is what you call a classy hater pipe. Maybe its my inner rice, but I kinda like the new whistle. It must be more pronounced off camera. Your driving video gives off so much more Getaway in Stockholm vibes with it. Is there absolutely no performance/protection gain at all?

[@driftworks]

Thanks, no performance gain at all. I'll see what the standard one sounds like.

[@leehearsey]

Maybe the video doesn't do the on boost whistle justice as it doesn't sound too bad, but it sounds pretty awesome spooling down when you switch it off, like a turboshaft helicopter, hope your next mods keep that bit of it!

[@driftworks]

I like all the other noises. The spool whistle is just annoying though.

[@leehearsey]

@@driftworks fair enough, I just rewatched with headphones and yeah it is a bit ricer, interested to see what happens next, fab work on the intake is fantastic though, should be proud of that!

[@Schnitzer325ci]

I kept thinking it was half time but I couldn't see the ref 😜 Get to welding 👍🏽

[@driftworks]

😁

[@autoroom21]

That sounds awesome

[@driftworks]

Said everyone under the age of 20.

[@autoroom21]

Driftworks you bought it Phil!

[@twist2410]

Phil, I wouldn't advise You to continue driving before You check the oil level. There isn't any oil dripping from between the case halves or from under the cylinders, so my only conclusion is that there isn't any oil.

[@driftworks]

Haha 😄I've heard it's a bit of a thing on these cars.

[@johnsnowdon2939]

Mine leaves a few little drops wherever it goes; I consider it a 964 Turbo marking its territory LOL!

[@Matty.Hill_87]

If you block off the compresor wheel speed sensor port in the housing it helps stop them sounding like a fake turbo whistle

[@driftworks]

It's blocked. You have to drill them out to use them.

[@loekfelten548]

I actually like it..... Quickly becoming one of my favorite builds to watch :-)

[@driftworks]

Lot's of people do, but it's not for me. It sounds like a broken diesel 2 litre turbo while cruising.

[@SteveDunnDMON]

Sounds like a lorry now. Good effort :D

[@driftworks]

😄

[@CB-bi1be]

Thought it was going to be cool. man im glad you showed me this before i got this mod. Was about to spend a penny

[@driftworks]

👍

[@pettybird]

The drain tank and scavenge pump are necessary because the turbo oil outlet sits below the level of the bottom of the case. If the turbo were in the engine compartment (or on the roof, or whatever place higher up you like) that setup would be unnecessary. Also, the left exhaust pipe is also the wastegate on the stock car, and it even has its own little bitty catalytic converter in it!

[@sats7819]

Sounds blimming amazing haha

[@driftworks]

😄

[@gen1c8rs88]

Chucking the T51r at the 911 sounds like a big metallic bang and looks like possibly more body work 😏

[@driftworks]

?

[@gen1c8rs88]

@@driftworks Part of your episode's desription says: In this episode, I "chuck" it at the car & "see" what it "sounds" like. Was I being to obtuse or dull or both ?

[@idokwatcher2062]

DW, the car is bonkers! If some of the muffled "efficiency" noises mean better peformance I'd settle for it any day.

[@driftworks]

It doesn't make a difference to performance. It just stops me being annoyed.

[@K20MKV]

Of the same opinion. Sounds awesome, bit too much whistling. Loving all these videos, makes me green with envy 😂 got any jobs going? 😂

[@driftworks]

👍Thanks. I don't at the moment I'm afraid.

[@tonybrider]

Put the other compressor housing on, tune it and wind up the boost. 👍

[@driftworks]

That's half the plan. I'll see what the unmodded one sounds like on load & decide if I want to make stuff or not. Still lots to do before I have it mapped. New ECU, injectors, DBW, coil on plug etc

[@gazwalton2512]

Again perfect beer time vid placement 🤣😂

[@driftworks]

🤘

[@thedrvn]

Every time I try and imagine it in another colour I dont think it could look ads good as it does in silver. Stunning. Also love the wisteria, how long to get it that size?

[@jogrobler]

Agreed Phil,.. Sadly the old busted as fuck turbo made some of the sweetest turbo sounds I've ever heard! Keep at it though, love this series.

[@driftworks]

Thanks man. Will do.

[@ShootingDave]

You do a lot of nice things to your cars. That whistle was not one of them. haha

[@driftworks]

😁Word!

[@tuurbow]

Im so glad you found that just as awful as I did. Please get rid of that thing asap

[@petergordon4525]

If all he wants is a nice sounding flat 6, tell him to throw the turbo in the bin lol.

[@driftworks]

👍

[@frankly88]

I Love the sound personally

[@driftworks]

I'm guessing you are both younger than me 😄

[@A6RXN]

Sounds spot on for me too haha.. for reference (maybe have a pole?🤣) I’m 34!

[@frankly88]

@@driftworks 35

[@r.p.3192]

Jeez, the whistling death! No more stealthy though. Flying the beast underneath the radar won’t be possible anymore as it’ll be sooooo noisy ;-)

[@driftworks]

😄

[@TwelveSevenTwoWorks]

I reckon the broken HKS turbo sounded better 😋 Regarding the intake could you create another staggered flap in front of the open section sealing in the opposite direction - top tight, bottom open.

[@driftworks]

I do too, but it sounded particularly good because it was broken. Hopefully no need for complicated ideas for the inlet, but I'll be keeping an eye.

[@djcrossie]

It's your car so you can do what you like but I'm so glad you thought that whistle sounded daft. Takes all that aggression and adds a swaney whistle🤦‍♂️

[@driftworks]

🤘

[@ollieevans_drift2996]

That turbo sounds mega!!! 😂😂 Full asbo noises!!! Nothing subtle about that!!

[@driftworks]

😄

[@TougeTouring]

Great work as usual! but wouldnt it be more sensible to wrap the heatshield behind the oilcatchcan? cause now the hot air is trapped between the turbo&exhaust and indirectly heats up the oil even more cause of the catchcans big surface

[@driftworks]

Thanks. Heat rises & there's very good airflow under the car. It won't have any effect on oil temp.

[@KerryDrift]

awesomeness explain lol good works bless

[@driftworks]

👍

[@LampuhkapsChannel]

Sounds pretty rowdy! I say, keep the T51R and lets mob the streets with that thing! :D BROOOAAAAAAP! The spool up sounds great, bit too loud perhaps. Spool down sounds like a jet engine turning off xD

[@driftworks]

It's definitely not staying. I also like all the sounds on lift off. I just hate the spool up whistle. It's super annoying.