An N/A guy looking to the darkside. Help me build boost!

[pbonsalb]

i think coming from the big cam na world you would prefer something with a relatively large hot side. 62/6466 i think you'd enjoy. Raji rode in my car with a 64, you should ask his opinion versus the big cam s52. You might find it insightful.

What power are you making with the 6466?

[vollosso]

What power are you making with the 6466?

575/515 at 18.5psi, on a beat s52 block. New motor this month and a redyno hoping for more timing with proper squish and 650whp.

I'm on gate only and make 500wtq at 4k.

[GG///M3]

575/515 at 18.5psi, on a beat s52 block. New motor this month and a redyno hoping for more timing with proper squish and 650whp.

I'm on gate only and make 500wtq at 4k.

Interesting

[Butters Stoch]

575/515 at 18.5psi, on a beat s52 block. New motor this month and a redyno hoping for more timing with proper squish and 650whp.

I'm on gate only and make 500wtq at 4k.

Dyno ?

[vollosso]

Dyno ?

unfortunately i dont have it, the operator at the dyno day was a huge dick.

I have posted the 500/500 graphs in my thread.

With the new motor i will be making the long trip to the good dynojet/operator i used the first time.

Edit-- Just thinking about it i actually think i may have a picture on the good camera. I was tuning not wielding the camera so im not certain.

[Butters Stoch]

unfortunately i dont have it, the operator at the dyno day was a huge dick.

I have posted the 500/500 graphs in my thread.

With the new motor i will be making the long trip to the good dynojet/operator i used the first time.

Edit-- Just thinking about it i actually think i may have a picture on the good camera. I was tuning not wielding the camera so im not certain.

I'm interested to see 500tq at 4k.

[vollosso]

4k.jpg

From my original dyno day 473wtq @ 4006 rpm, 93 pump only on medium timing, no EBC..

Note i added 3-5* in the 4k range after that day, we were hunting high rpm issues which turned out to be poor ring seal and didnt spend any time with adjusting midrange timing.

[m3mods]

I haven't. Haven't really put much thought into it lately. Will most likely be something HTA35r/6266 sized or 4088/6466 sized, those are the ones that seem most available and are sized to fit the new steedspeed manifold.

You know the big bw's will fit on the steed too right? Turbo size really shouldn't be an issue with the new steed (s400 series maybe but all of the s300's fit)

[Da Infammus 1]

You know the big bw's will fit on the steed too right? Turbo size really shouldn't be an issue with the new steed (s400 series maybe but all of the s300's fit)

I thought the s366 would be a tight fit. That turbo is too laggy for my needs anyhow. I have a friend with a 4088 in his car that's local to me, going to see if I can take a ride with him to compare to other setups I've seen

[e30polak]

I too have decided to join the dark side once again! Found out we can get an OBD2 turbo s52 to pass smog here relatively easier now. The Z3 Coupe will be getting some boost!

[vollosso]

I thought the s366 would be a tight fit. That turbo is too laggy for my needs anyhow. I have a friend with a 4088 in his car that's local to me, going to see if I can take a ride with him to compare to other setups I've seen

i dont believe that the s366 should be considered a laggy turbo.

[Da Infammus 1]

I too have decided to join the dark side once again! Found out we can get an OBD2 turbo s52 to pass smog here relatively easier now. The Z3 Coupe will be getting some boost!

Awwww YEA! Make sure u document it on IG lol

[Da Infammus 1]

i dont believe that the s366 should be considered a laggy turbo.

As compared to a 6266 or a 6466? Or even a 4088? I'd think so. But then again. I don't have much turbo experience lol

[e30polak]

Awwww YEA! Make sure u document it on IG lol

Will do a proper build thread too. No rush on this, need to get my 6 speed, and all the z3 mcoupe suspension, brakes and subframes swapped from my Ti to the coupe, and put the zf 5 speed, and new bushings in the coupe stuff for the Ti. Then I need to sell the Ti to fund the coupe build, lol.

On the alternate list for the Steedspeed TS mani, and luckily I still have my old 3.3L motor, that already had forged CP pistons, ARP2000 stud and the ported non-Vanos head. Going to throw some K1 rods in it, put my fresh Dr. Vanos on it, and get a cut ring to drop compression from 11:1 down to 9.5:1. I want to run a 6466, and will get the 115 e85 injectors and necessary fuel system upgrade to run big boost. I want 450whp on pure 91 and the ability to turn it up to 750whp on e85 .

[pbonsalb]

i dont believe that the s366 should be considered a laggy turbo.

Its a 6673 in common turbo parlance, so it is on the large size among popular turbos for the 3.0L S50 and 3.2L S52. 73 is a big turbine to motivate. A GT4094 is a 6868, for example. Big usually means laggy, though fancy tech like ball bearing and titanium -- of which the S366 has neither -- can help. I'd call the S366 a high flowing bang for the buck turbo, but won't call it responsive until I see a dyno of one on an S50 or S52 showing good response.

[vollosso]

Yellow: Chikinhed Red: Me (6465 .68ar) Blue: Butters Green: Avee Attachment 558009 new: Attachment 558010 Comparing Ebc 6466 .81 vs Spring 6465 .68 (set to 18psi)

Green Avee is a s366
Butters is a 6466 93+meth 21psi + cams
Red is me on gate with 93 @18.5
Yellow is chikinhed with 94e10 + meth and 25 psi and cams timed gtx35r.

[vollosso]

The problem with those graphs is everyone started at a different rpm which skews results..

The lower you start the higher your torque curve will be, because the turbo has more time absorbing energy.

[pbonsalb]

Thought Avee was S362 FMW.

[Butters Stoch]

Thought Avee was S362 FMW.

Correct.

[Da Infammus 1]

The problem with those graphs is everyone started at a different rpm which skews results..

The lower you start the higher your torque curve will be, because the turbo has more time absorbing energy.

Yea I'd like to see them all run at the same time to get an accurate comparison

[vollosso]

Thought Avee was S362 FMW.

oops. You are correct. I had that mixed up in my head

Edit: regardless we did a s366 on a 2.8 that had full boost by 4k.

[Butters Stoch]

oops. You are correct. I had that mixed up in my head

Edit: regardless we did a s366 on a 2.8 that had full boost by 4k.

What's considered full boost ? Cause I can hit full boost by 2200 rpms. If I decide to only run a couple pounds.

[e30polak]

What's considered full boost ? Cause I can hit full boost by 2200 rpms. If I decide to only run a couple pounds.

This

[vollosso]

What's considered full boost ? Cause I can hit full boost by 2200 rpms. If I decide to only run a couple pounds.

it was 16-17 psi, 91 octane, gate only by 4k.

[Butters Stoch]

it was 16-17 psi, 91 octane, gate only by 4k.

I have logged 19.6 iirc by 4k, this was punching it at 3k and lifting at 4k . just to see if I could hit 20. At that time controller was set to 20.X or 21 I don't remember. But I do know it didn't hit 20+ at 4k. I think 4100 I did. This was on the street.