Just received a new Comp Oiless Billet turbo!!!

[guc32]

That is my car on the track. Yes its loud.

[dohcdoh]

But why is it loud? is it the turbo making that noise? I dont hear it on the other vids of that supra..

[highboostingm3]

It seems as though the whine is a standard feature.

[ame]http://www.youtube.com/watch?v=kxW6ogGGhMk&feature=related[/ame]

[jonesmechanical]

Well, I think I feel better. Lets look at what turbo's your guys are running. I wonder if its the smaller sizes. Guc32, based on the sound, it sounds like the turbo is spooling the second you get on the gas, reminded me of a acura rdx that i drove. The thing just wants to go and go. Speaking of the rdx, anyone know the trick spool valve that they run.

Flexer is building a exoX right not on a gt4088r turbo. It will run e85, fully divided manifold and a spool valve. Seems impossible right? well..... I wont spoil anything.

If there is room, with the setup, I would be tempted to go larger, like gtx42. It would be make for an interesting setup.

Worked all night on these pieces for Steve's car:


Little Jones boy (Tyler, Youngest of 4 boys) giving dad some help.





The also did the Door cards. Did a french stitch swooping seam that mirrors the door handle (tough to see, thread is black). Big improvement. I wasn't much of a fan of the tan, esp the ostrich. Now its all gone. With the black seats, and all the suede details Steve is going to be blown away.





Now, for the Pièce de résistance, I found a Gumpert Apollo at a local wrecking yard and pulled the traction controller out of it:

I haven't figured out yet where its going to be mounted. First time I have used the digital controller. Cool stuff.

As soon as this project is out of my garage, the 510 and my coupe are going to get some love. And hopefully will finally get my "superstar" roadstar 3 piece wheels done. Thanks to another z3'er, great with photoshop, this is what I'm going for:


Steves, Mine, and another Z3M Coupe owner here on BFC will be rolling these as soon as I can finalize the design.

[pbonsalb]

A large frame oil-less CompTurbo similar to the GT40R has some appeal if I could do away with the scavenge pump and use the extra clearance to fit a quick spool valve (requires 3/4 inch). Look forward to reading more about how it works over time. Would have to build a motor. For now, my T4 GT35R makes all the power I am comfortable with on my stock rod motor.

[charger758]

Mine sounds just like GUCs video, I think it has quieted down a little though. I'm guessing I have about 700miles on it now.

I have to dig up the specs, but basically I wanted one that was similar to the 60-1 turbo I was already running in my TT setup, this was a bolt in replacement. Performance wise, it is tough to say because I only ran it on my 3.2L for about a couple of weeks before I blew the engine. Now I have a 2.8L so kind of apples and oranges.

I just picked up a gopro, need to pick up an SD card and start taking video!

[Z3speed4me]

Can't wait for those wheels!!!!

And I need to learn how to stitch, that work looks pretty damn good on the gauge pod!

[rukman]

That is my car on the track. Yes its loud.

can you give us details on your setup?

which comp turbo model?
how many miles have you put on the oil-less?
i am assuming water lines connected to center section?

i've heard MaxPSI s54 comp turbo kit at idle and with a few psi of boost and it didn't sound different than any other setup.

Mine sounds just like GUCs video, I think it has quieted down a little though. I'm guessing I have about 700miles on it now.

I have to dig up the specs, but basically I wanted one that was similar to the 60-1 turbo I was already running in my TT setup, this was a bolt in replacement. Performance wise, it is tough to say because I only ran it on my 3.2L for about a couple of weeks before I blew the engine. Now I have a 2.8L so kind of apples and oranges.

I just picked up a gopro, need to pick up an SD card and start taking video!

i was heavily leaning toward switching to a oil-less center section as i'd like to eliminate my scavenge oil system as well but this "whistle" does have me concerned....

although it has "quieted down" would you still say it is noticable over your standard "oiled" turbo?

[jonesmechanical]

A large frame oil-less CompTurbo similar to the GT40R has some appeal if I could do away with the scavenge pump and use the extra clearance to fit a quick spool valve (requires 3/4 inch). Look forward to reading more about how it works over time. Would have to build a motor. For now, my T4 GT35R makes all the power I am comfortable with on my stock rod motor.

Nope, it does not require a 3/4" spacer at all. The most popular do, and they can only be used with non divided manifolds (which most of our's are). The main issue for us, is space. Even if it takes up no room, the actuator could be nearly impossible to fit. I think that the 6765 with the largest A/R would be actually an improvement on the 40r, and it will fit. Maybe just going to a smaller housing with a 2.5" compressor outlet would help in fitment of the qsv. From what we can tell, what we are doing has been done once, with no documentation.

Here is a pic of the acura setup:

If you took the cross section 90 degrees of that, you would see the divided housing, so that flapper covers both dividers. Jr and his good buddie Josue has figured out a way to machine the turbine housing division in a 4088r and place a flapper that is hinged high in the turbo that either divides the air so it functions physically like a divided 4088r, and then leans to one side and diverts all of the air from both sides of the divided manifold into one of the inlets on the turbo. Imagine a chamber that is either divided or leaned over to junction both sides of a divided manifold.

Just last night JR was working on it, taking pics, and videos. Hopefully he will post, or start a new thread. He is putting this 4088r on a EVO VIII.

[highboostingm3]

Nope, it does not require a 3/4" spacer at all. The most popular do, and they can only be used with non divided manifolds (which most of our's are). The main issue for us, is space. Even if it takes up no room, the actuator could be nearly impossible to fit. I think that the 6765 with the largest A/R would be actually an improvement on the 40r, and it will fit. Maybe just going to a smaller housing with a 2.5" compressor outlet would help in fitment of the qsv. From what we can tell, what we are doing has been done once, with no documentation.

Here is a pic of the acura setup:

If you took the cross section 90 degrees of that, you would see the divided housing, so that flapper covers both dividers. Jr and his good buddie Josue has figured out a way to machine the turbine housing division in a 4088r and place a flapper that is hinged high in the turbo that either divides the air so it functions physically like a divided 4088r, and then leans to one side and diverts all of the air from both sides of the divided manifold into one of the inlets on the turbo. Imagine a chamber that is either divided or leaned over to junction both sides of a divided manifold.

Just last night JR was working on it, taking pics, and videos. Hopefully he will post, or start a new thread. He is putting this 4088r on a EVO VIII.

^^^OMFG


I want I want I want!!!!

I had the Aerodyne VGT turbo as my very first turbo on my car. It was insane!

Immediate boost yet of course it was small so would die up top over say 320whp. This right here is an amazing idea! The QSV is so caveman compared to this. I have been researching and thinking for many months about a new setup where I don't have to swap my manifold and go divided for quicker spool. QSV has been on the brain plus say a gt4094r which I really like, yet it takes up so much space. If you guys figure this out and offer up a mod sort of like Forced Performance and their HTA turbos this is huge man! The VGT turbo issue is it can't really deal with the heat unless it's a diesel. The ones on the 997tt are very expensive. Yet this flapper idea working with a gasoline engine and taking up much less space? Jackpot baby!

[turbo325ii]

Daddy likes!!!!!

[jonesmechanical]

^^^OMFG


I want I want I want!!!!

I had the Aerodyne VGT turbo as my very first turbo on my car. It was insane!

Immediate boost yet of course it was small so would die up top over say 320whp. This right here is an amazing idea! The QSV is so caveman compared to this. I have been researching and thinking for many months about a new setup where I don't have to swap my manifold and go divided for quicker spool. QSV has been on the brain plus say a gt4094r which I really like, yet it takes up so much space. If you guys figure this out and offer up a mod sort of like Forced Performance and their HTA turbos this is huge man! The VGT turbo issue is it can't really deal with the heat unless it's a diesel. The ones on the 997tt are very expensive. Yet this flapper idea working with a gasoline engine and taking up much less space? Jackpot baby!

I think that many peope (including me until last week when JR told me about this project) thought that the Acura RDX motor was a VGT turbo. Its not, its a variable Turbine A/R design. In fact, I like JR's setup better than this one, and it should be very compact. Finally, maybe all the little wee t3's would be envious here on bfc. Best of both worlds. Imagine a gt4094 with either a .60 housing and a 1.19, modulating that A/R when its just right. Winning.

This evo is a good friend (Josue) of mine, and its going to be a great test bed for this application. Its very exciting. Divided manifold, plus quick spool. Go figure, Some geeks over at Acura had that one figured out. I guess the big benefit of the Acura design is that the division is maintained whether the valve is open or shut. JR's and Josue's design, the valve is rotated and set internally by 90 degrees.

Are you ordering a t4 yet brett. Maybe you will want to take my 4088 of my hands when I go oiless depending on how Josue's car test out eh? HMMMM....the benefits of a stanalone....tinkering. I don't know how this would work with stock dme tuning. Maybe it wouldn't be an issue? Just a matter of controlling the valve and then the tune would be air flow/load based?

[mike radowski]

My e46 m3 has a noticeable sound very similar to charger's car. Nowhere near as bad as the video posted. I have no other feedback. Donovan has a comp turbo, but with a normal center section. Charger, please get us some video or audio and I will discuss with the guys at comp. I love the simplicity of the install, and no oil smoke or oil in the ic piping/maf is great. The sound only occurs below 0psi and disappears as soon as you get into positive pressure.

[BadBoostedBmwM3]

That video reminds me of a firetruck's siren coming from the distance with the engine revving.

[jonesmechanical]

Mike, would you ever characterize the sound as annoying? Is the M3 back from florida yet?

[mike radowski]

The VGT turbo issue is it can't really deal with the heat unless it's a diesel.

Chrysler was the first oem to use VNT(VNT) technology on the 89 csx. It worked really well, however it was sized for instant boost on a 2.2l 4cyl. We never used them for big power cars because there were no upgrade options.

[highboostingm3]

I think that many peope (including me until last week when JR told me about this project) thought that the Acura RDX motor was a VGT turbo. Its not, its a variable Turbine A/R design. In fact, I like JR's setup better than this one, and it should be very compact. Finally, maybe all the little wee t3's would be envious here on bfc. Best of both worlds. Imagine a gt4094 with either a .60 housing and a 1.19, modulating that A/R when its just right. Winning.

This evo is a good friend (Josue) of mine, and its going to be a great test bed for this application. Its very exciting. Divided manifold, plus quick spool. Go figure, Some geeks over at Acura had that one figured out. I guess the big benefit of the Acura design is that the division is maintained whether the valve is open or shut. JR's and Josue's design, the valve is rotated and set internally by 90 degrees.

Are you ordering a t4 yet brett. Maybe you will want to take my 4088 of my hands when I go oiless depending on how Josue's car test out eh? HMMMM....the benefits of a stanalone....tinkering. I don't know how this would work with stock dme tuning. Maybe it wouldn't be an issue? Just a matter of controlling the valve and then the tune would be air flow/load based?

Oh man I can't get my hopes up but if I could get my hands on a t4 turbine housing like your picture and a GT4094r or larger turbo I'd be in heaven!

You talk about using a divided manifold (NOOOO!) with this setup yet in the picture it looks like it "was" a "divided" turbine housing with the center portion machined out to a certain point. So the opening would hence be undivided" using an "undivided" manifold. Then the flapper does it's job of directing the exhaust gases either to one scroll portion or allowing both scroll portions (once a certain psi is achieved where rpm lag is not an issue). So when going by your diagram...it looks like a "divided" manifold would work best. Hence, my excitement.

Chrysler was the first oem to use VNT(VNT) technology on the 89 csx. It worked really well, however it was sized for instant boost on a 2.2l 4cyl. We never used them for big power cars because there were no upgrade options.

Well what I have read is that it's expensive R&D to make them work with gasoline engines, not that it can't be done. Hence, why I contacted Aerodyne and begged them to produce 60-80lb flowing turbos. They weren't interested. Their design does work fine with gasoline powered engines yet they were very closed-minded since most of their business is with snowmobiles and they don't feel the demand for larger turbos. They must have missed 2F2F.

[turbo325ii]

Are you ordering a t4 yet brett. Maybe you will want to take my 4088 of my hands when I go oiless depending on how Josue's car test out eh? HMMMM....the benefits of a stanalone....tinkering. I don't know how this would work with stock dme tuning. Maybe it wouldn't be an issue? Just a matter of controlling the valve and then the tune would be air flow/load based?

Na I am right where I want to be! No t4 for me.... I don't want to be slower... LOL

And the tune doesn't care what your doing with a quick spool contraption. All it sees is mass air flow that's it.

[Colby Colbs]

Im on my phone please host guc32s vid in youtube and re post. Some of you know that I have a oilless 6765 on my 99 m3 and boy does that thing sound strange... Mike R called and said I got a strange question, I cut him off and said what does your turbo sound like a dying blue balooogha too?! It seems this is normal...

[rukman]

Im on my phone please host guc32s vid in youtube and re post. Some of you know that I have a oilless 6765 on my 99 m3 and boy does that thing sound strange... Mike R called and said I got a strange question, I cut him off and said what does your turbo sound like a dying blue balooogha too?! It seems this is normal...

i was hoping that wasn't the case...we may have to meet up so i can hear this in person. My short trip with mike i didn't seem to notice anything too obtrusive but it was a quick trip to wendy's..lol

[Colby Colbs]

Mike has also done things to combat this noise such as changing to a non ported compressor housing... one major thing to notice or realize is that when you put a big long tube on the end of the compressor housing its amplifying the sound created...

[highboostingm3]

Im on my phone please host guc32s vid in youtube and re post. Some of you know that I have a oilless 6765 on my 99 m3 and boy does that thing sound strange... Mike R called and said I got a strange question, I cut him off and said what does your turbo sound like a dying blue balooogha too?! It seems this is normal...

Mike has also done things to combat this noise such as changing to a non ported compressor housing... one major thing to notice or realize is that when you put a big long tube on the end of the compressor housing its amplifying the sound created...

Interesting.




I'm caring a lot more about the flapper turbine housing in this thread but this is quite the enigma.

[jonesmechanical]

Yes, Cam, Me too. I am excited for the oiless application to our cars. But then doing a larger turbo with a divided housing with an internal gate to modulate A/R is much more of a big deal. Combine the two and all I will need is a old time show band in tow to harmonize with my right foot! And I won't ever smokem out!

Flexer (Jr) has a video of it operating on the 4088r. He is being a looser and working on his boat. He will post it soon.

[guc32]

Im on a 6262 turbo. Wanted a 35r ish with 3in inlet. Non ported housing. 3in vband out. T3 flange.

Spa manifold with wastegate connecting back into exhaust. Have a alum pipe for intake to behind passenger headlight. 3.5" draw through maf.

About 500 miles on it.

Hope that helps.

[Colby Colbs]

I still can't hear your video or see it from that matter
regardless of my car has t4 6765 steedspeed

Guessing the bearing makes noise on startup... Ohh well