T51r turbo mod on my RWB 911 sucks! Porsche 964 Turbo with EFR8374
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- 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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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
I'll take that front housing if you don't want it mate
I like how you get carried away with everything
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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
👍Cheers
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.
Thank you 👍
I actully like the sound. She sounds like a fighter jet..awesome upload as usual.
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That promodet exhaust is a work of art
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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
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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.
🤘Thanks man!
Mate that sounds fucking amazing I wouldn’t change it!
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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.
Thanks man.
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 👌
Thanks. The car can pull it off. I just don't like it.
@@driftworks Stick it on the Aston Martin 😂
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.
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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.
Haha 😄I've heard it's a bit of a thing on these cars.
Mine leaves a few little drops wherever it goes; I consider it a 964 Turbo marking its territory LOL!
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.
To be fair it will probably sound.a bit more rowdy when I put it back on to test properly.
Trial and error is part of the fun when diy fettling, nice work.
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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!
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Sounds awesome - what an improvement
Haha, no the conclusion I came to.
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!
Haha, have faith in how old I am 😄
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 🤙🏻
It's for the wastegate
Pete I know, I said I’m pleased he explained it..
@@AshleyCaunt Right my bad. Entirely misread that
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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
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I really liked the sound of the old broken turbo 😬
And me 🤓
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?
That's the plan 👍
WHAT!!!!!! How can you not love the sound knowing you're bout to hit full boost!!!! That's music to me!!!! 💥💥🎉🎉
Because it's annoying when your just driving around. It sounds like a diesel truck.
Chucking the T51r at the 911 sounds like a big metallic bang and looks like possibly more body work 😏
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@@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 ?
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!
No probs. 👍
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!
Actually does sound like one of those turbo whistles for the exhaust!! I’m glad you said it! Top work tho!! That whistle
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Insane sounds 😎 you could almost call a taxi with that whistle....
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17:55 - The Ebay turbo whistle valve things are exactly what I was thinking of lol
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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!
Sounds worse IRL.
Sounds like the batmobile from batman 1 when you turned it off 🤣, awesome work tho
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Put the other compressor housing on, tune it and wind up the boost. 👍
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
Def got a proper whistle now. I like it.
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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
Thanks man. 👍
If you block off the compresor wheel speed sensor port in the housing it helps stop them sounding like a fake turbo whistle
It's blocked. You have to drill them out to use them.
I love the noise of those old 911, its so mechanical and raw 💪🏽
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@@driftworks pile of shit
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.
Thanks man. Will do.
Im so glad you found that just as awful as I did. Please get rid of that thing asap
If all he wants is a nice sounding flat 6, tell him to throw the turbo in the bin lol.
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Sounds friggin ace man 👌👍
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It's a lovely car whatever you do to it Phill...
In fact all your cars are really quite special.
Thanks 👍
Love the iterative approach to getting it right! No compromise. 👍
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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.
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I Love the sound personally
I'm guessing you are both younger than me 😄
Sounds spot on for me too haha.. for reference (maybe have a pole?🤣) I’m 34!
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Sounds Great.. Awesome fabrication work on the pipe work and heatshielding.
Thanks man.
Sounds so good! Heat shielding looks trick 👌 Super excited to see her fully rip with all the new gear
Thanks! 👍
Love the heat shields and little details, well done Phil.
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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
Thanks 👍
I agree that whistle is too obnoxious, I am rather surprised that it still sounded that loud even with a intake filter.
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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
No worries 👍
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.
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1st turbo didn’t get much of a chance,maybe put it back on and go for a drive
Thats the plan 👍
Sounds like a Halfords special. Love the car though.
👍Thanks
Been waiting for that exhaust to be shown. Makes much more sense now. Thumbs up
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I kept thinking it was half time but I couldn't see the ref 😜
Get to welding 👍🏽
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But .. no earplugs !
Huge improvement
My ears still ring a bit. It's better though.
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!
I like all the other noises. The spool whistle is just annoying though.
@@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!
Fit the original housing and go for a drive before welding it up. The mesh filter that if had also makeza more sssssssss type noise than the K&N. If you want to weld it up check the compressor map first
That's the plan. Why would I check the compressor map?
I think swap back to the original housing and see how that sounds under load before going mad with welds 😅
That's the plan.
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🤦♂️
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some whistle is nice but that's too much whistle... i've read somewhere that it's the tiny hole on the side of the inlet that makes the whistle. plugging it will eliminate it completely. maybe weld it shut and drill a smaller one?
It's the actual modification that makes the whistle. It's a machining process done that's called a T51R mod.
If i heard that coming down the street i would jizz my pants...and im 40 years old! I personally love that sound as it makes it known there is a huge turbo lurking. Millenials would not be aware of 90's turbo whistle stuff, and those that are aware, will know this ISN'T a cheap copy! Keep it and make dump valve purge louder!
Haha, nope it'll be off the car possibly tomorrow.
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
Thanks. Heat rises & there's very good airflow under the car. It won't have any effect on oil temp.
Always amuses me how people watch the video yet still ask questions that Phil had already covered.
That's because they don't really watch the video...
I love it 😬
Big fan of all ur cars for years
Love the csl on the lift ...keep up the awesome work
Thanks, will do! 🤘
Quote, 'who knows, well lots of people just not me' no BS, great content.
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DW, the car is bonkers! If some of the muffled "efficiency" noises mean better peformance I'd settle for it any day.
It doesn't make a difference to performance. It just stops me being annoyed.
It sounds dope af Phil what are you on about!?! For the love of God keep it
The whistle does not sound dope. Everything else about it does.
Got t51r mod on my semi truck you should hear it whistle at 45 psi it's so loud
Love the turbo whistle!
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Man I’m running that same WasteGate!
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)
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Loving the turbo whistle 👍🏻
Can I ask a question without appearing rude: How old are you?
@@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.
Oh and I used to do a lot of miles in a Defender 300tdi which may explain my like for a bit of whistle
Sounds amazing no big dumps though enjoying your process of elimination Phil
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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
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Sounds like a Class 8 diesel tractor. Not my cup of tea either, Phil. Good on you for trying, though.
👍Cheers
It does sound good to the casual bystander but I can see your point, it is a bit cheesy and living with it would quickly become tiresome 🥴
You should have a listen to my old E92 330d for inspiration 😂 turbo sounds without the high pitched whistle.
Yeah, Diesel is the first thing that comes to mind when driving it.
What? The OBC displaying 40mpg? 😃
yea I have to agree, not a fan of the of the new turbo whistle, it sounded better with the knackered old turbo on it lol
Yep.
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?
Thanks, no performance gain at all. I'll see what the standard one sounds like.
Why don't you plug of the hole for the speedsensor in the compressorhousing, this could the reason for the extreme whistling.
It's plugged as standard. You drill it out to use it.
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 ;-)
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I could hear the difference job well done 👌 once it's mapped properly it will be awesome
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Deffo give the standard housing a go as it is Phil!
Yep, for sure!
Wow, you drove right by where I live. It's funny ive never seen or heard you're car before.
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Nice job with the repair.
What was so wrong with the previous turbo setup besides the impeller all mangled, why not just refit same as old. Was the car not fast enough before?
He said it was really laggy before
Nothing wrong with it as such, but the engine is capable of more, so more is required.
Fooking awesome phil 🤜🏻🤛🏻
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OMG your reaction! Classic. :D Keep up the good work Phil.
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What a beautifully mean piece of kit
Thanks 👍
It sounds about as cool as an SSQV does in this day and age haha
I have allways wondered who likes the sound of ssqv, holy shit that is awful😂
F$%ing pidgeon sneeze BV
That house looks stunning... super jealous
Thanks 👍
This intro never gets old!
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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.
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.
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
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air filters really quiet the effect down unless under boost . did the same to my GTX3076R on my SR22 . OCD does nice work . interested in any spool variances from cover to cover if when you swap it. .
It's on a K&N which is normally not a particularly noisy filter. I had a mesh type before.
At least you didn't sell the old compressor housing ;) did you try the old one under load or just starting it up in the garage? may sounds better driving...?
i had been wondering about the scavenge pump, thats a really nice way to do it!
I'll try the unmodified one next.
Im pretty sure on boost the unmodified one will sound good.My one when you rev it you cant actually hear it but as soon you drive it you can hear the sucking from the turbo.Boxer engine as well but 4 cylinders:)
Yeah.... I agree.... definitely don’t like that whistle
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Been looking forward to this episode..
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Sounds great if you're into tractor pulling. Try plan C.
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these kind of vids are the best!
👍Thanks
Guys I can tell you the whistle isnt that bad, It sounds louder because he has a mic in close vicinity to the turbo/intake vent.
It will sound more subtle to him as hes in the car driving. I say keep because I know it won't sound that exaggertaed. Even better you have the standard housing at your disposal so can swap and change whenever you feel.
I can tell you that it is worse than the mic shows.
Driftworks 😱😱😱😱😱😱 REALLY ?!! shit. I’ve been in my mates skyline with t51r mod it’s quiet in the car but it’s loud af on camera. shit man ok 😂😂