Anyone running the FP 20G-6SL2 ?

[olmytsi]

I'm looking into buying a td06 20g and I am looking for reviews on this fp 20g.

Link: Forced Performance Turbochargers: DSM 20G-6SL2 Street/Strip Turbocharger

Thanks guys,

T

[Project2G]

Look slike a good turbo to me. I used to have the FP Big t28 then upgraded to a Mitsu TD06 20G and I love it.

[erald01]

great turbo, slightly smaller than a 50 trim, i think its a 48 or 49 trim and flows really good

[90laserRSfwd]

20G-6SL2 Street/Strip Turbocharger

[olmytsi]

Thanks guys! Keep 'em coming.

I use to have a 50 trim and hks 272's but I want a quick spooling setup with good top end. I am currently running a big16g but i need a lil more hence why i want to go 20g. After the 20g, I will get the equivalent of 264 cams (thinking about gsc cams).

[We're on Boost]

Amber at FP is running one, but last I knew she was running on low boost, just the wastegate spring. Would be worth checking with her again. Doggo in here is running one with an external wastegate and seems to be doing very well with it.

I wish we could hear from some people running one with the internal wastegate. Usually I figure internal wastegates aren't the way to go but I know that on a lot of the mitsu and FP turbos they work pretty well. Just take a look at the FP Evo White thread in evom if you want to see a well behaved internal wastegate. They show some extensive logs in that thread including a boost log and a log of the wastegate position - this was a log of a run through the first 4 gears like a drag strip run, not just a dyno run. You can see that the boost control is very good. Well that was for the evo guys. Unfortunately they aren't doing that level of testing and development for the DSM products. So I guess it's up to us to figure it out.

Gary

[Steve93Talon]

I'd talk to Robert at FP before considering that turbo. I know he's posted on EVOm recently that the 6SL2 wheel seems to be designed for lower boost than we typically like to run on these engines. This is part of the reason he came up with a better design for the FPEVORed turbo. It may not be an issue when coupled to the smaller 20g coldside, and it may not even apply to the clockwise-rotation turbos, but i'd definitely talk to him about it. Tort's old skool clipped 05H wheel did the job very well.

Another option that'd be pretty unique would be to run the HTAGreen they offer for the WRX, but in a DSM bolt-on housing instead. It's essentially a 56 lb/min Billet 3076R wheel in a Mitsu cartidge/housings. It should spool really well and flow alot more air than a 20g. I'd assume the only reason they haven't listed it for a DSM application is that it'd take sales away from the FP30 series bolt-ons.

You could also just get a BW S256ET bolt-on from GV. I loved mine, 30psi by 3600, tons of power, very pump gas friendly.

[jusmx141]

How would the TD06SL2 compare to, say, a clipped standard TD06 turbine? Is is possible for the TD06SL2 turbine to outflow the TD06H turbine, even with it's new design?

[xi Talon ix]

Originally Posted by Steve93Talon

You could also just get a BW S256ET bolt-on from GV. I loved mine, 30psi by 3600, tons of power, very pump gas friendly.

30psi by 3600...i belive you without a doubt but id like to see a video of that bad boy in action

[Steve93Talon]

Originally Posted by xi Talon ix

30psi by 3600...i belive you without a doubt but id like to see a video of that bad boy in action

Here's a thread with some of my old logs, as well as an overlay of airflow compared to a similar setup with a 50 trim.

New turbo from bullseye?

[We're on Boost]

Originally Posted by Steve93Talon

I'd talk to Robert at FP before considering that turbo. I know he's posted on EVOm recently that the 6SL2 wheel seems to be designed for lower boost than we typically like to run on these engines.

Dang, I can can't find any mention by Robert about the 6SL2 turbine wheel in evom. I searched user "ForcedPerformance" for 6SL2 and couldn't find any posts. I also searched under user GrocMax (Scott) and couldn't find anything there either.

I did call them once to find out what turbine wheel they use in the Subie regular green (not the HTA Green) and they told me it was the TD06SL2. That was Aniel. If that is correct information I'd be pretty impressed because one of my favorite dyno plots on the entire planet is the one FP shows for the subie green with 7cm housing. 250whp at 4000 rpm and 461whp up at about 6800 rpm. This on an STI of course. The 8cm housing made 479 whp but with a ton more lag. Anyway, if that's the 6SL2 turbine in there, I don't see that it's holding the green compressor back much, and should be just fine with a regular 20g compressor.

I wonder if the comment you remember is from the FP webpage for the Subie 20g? This one definitely uses the TD06SL2 turbine wheel and of course the 20g compressor instead of the green compressor. For this one Robert says:
"This unit operates very effectively in the 18-25psi range on the 2.5 STi engine, but is slightly lower in maximum power output on race gas (boost above 22psi) compared to our FPGreen model. Many daily driver applications will find that the slight reduction in boost threshold is more than a fair trade for the slightly lower power output on race gas that they never plan on running anyway."

Sounds ok to me!

You know what, anybody who is interested in the 20g-6SL2 for their DSM should read the FP page for the Subie 20g. Wish the FP people would make a nice info page like that for the DSM 20g page. The DSM 20g page is a joke, very little useful info in it, and no technical introduction on DSMtuners like they did for the 18g-6SL2. Really nice pictures though.

Gary

[Steve93Talon]

evolutionm.net - View Single Post - EvoRed Review

I think it's more of an issue when you get into the Green/Red sized wheels running 30+psi. On an 18g or 20g at 25-28psi, it's probably in it's sweet spot. Still worth a conversation with Robert though.

[We're on Boost]

Originally Posted by Steve93Talon

evolutionm.net - View Single Post - EvoRed Review

I think it's more of an issue when you get into the Green/Red sized wheels running 30+psi. On an 18g or 20g at 25-28psi, it's probably in it's sweet spot. Still worth a conversation with Robert though.

I agree, hey thanks for finding that post. That is a really good one. Robert was telling all there I think, almost.
I love the comment he made about the 60mm dia TD06SL2 turbine blades being short and stubby "It did flow more, but it was no rock star when it came to putting power onto the shaft." Exactly!! I think that is one of the reasons why the GT series Garretts never really blew away the older turbos like everybody thought they would - tiny little turbine wheels. 60mm dia turbine is what the GT3076 has! And it's probably one reason why the BW's are pretty good - their turbine wheels are bigger than you would expect. But I tend to believe what Geoff at Full-Race says about them - he says the BW turbine wheels are designed from the ground up to be used with a twin scroll housing. So there are some compromises, some performance lost, when they are used with a single scroll housing.
Robert says the Evo Red has a new aero 67mm turbine wheel. Let that be a clue that the Evo Red is probably a better turbo than the HTA3076 which uses the stock Garrett 60mm blades.
Well anyway, the post does confirm that the TD06SL2 is what's used in the "regular" evo green and I suppose also in the subie green in normal rotation form. And that ain't bad!

Gary

[We're on Boost]

By the way Steve, I can't remember, was your S256 on a DSM housing or a T3? External wastegate? I'd love to be getting 24 lbs/minute at 3700 rpm. Did I read that right, is that what it was doing? Was that car a 2 liter? Dang I wish the user profiles would stick to the old posts instead of always updating to the current profile everywhere.

Thanks,
Gary

[Steve93Talon]

The 256 was on a bolt-on housing, external gate on the o2, on a bone stock 6 bolt. After the '93 was wrecked, I went to an S258 in the .70 T3 housing on my '90. It was 1000rpms laggier but INSANE up top in comparison with the same boost/octane/AFRs/timing/supporting mods. It really needed a SMIM at the very least to make up for the lag though and let me wind it out more. Overall, the 256 bolt-on was the best street/strip setup I've ever owned personally.

As for the BW wheels being designed for twin scroll housings, that's exactly what we're doing on Tort's car right now. S362 in the divided T3 .85 hotside with a GVautosport twin scroll manifold. It should be pretty interesting. I'd love to see someone use that manifold with an S256-259 in the .76 div. T3 housing. It'd spool like a bolt-on and make 550+whp easily. :hint, hint:

[talontsi97]

T, I'm glad you posted this up. It's the same setup i was debating going with. Some good info so far, keep it coming.

[olmytsi]

I'm dead set on a 20g, I'm looking into picking up a td06h setup this coming week. Thanks for the replies.

[We're on Boost]

Originally Posted by Steve93Talon

Overall, the 256 bolt-on was the best street/strip setup I've ever owned personally.

As for the BW wheels being designed for twin scroll housings, that's exactly what we're doing on Tort's car right now. S362 in the divided T3 .85 hotside with a GVautosport twin scroll manifold. It should be pretty interesting. I'd love to see someone use that manifold with an S256-259 in the .76 div. T3 housing. It'd spool like a bolt-on and make 550+whp easily. :hint, hint:

Yeah, that's some good info and the twin scroll S256-259 GVauto setup is something I'd love to do. I'm having a hard time making up my mind though. For one thing, Geoff says you really need 2 wastegates with twin scroll to get the early spool characteristic. Up top it doesn't make much difference whether you got 1 or 2 wastegates. Anyway with 2 wastegates on a big complicated tubular manifold you don't exactly have what I would call a "compact installation" - thinking about fans, radiator, alternator, oil filter, heat shield on the PS pump, dump tubes all over the place, you know? Then on top of that, there is new stuff coming out of BW right now and over the next few months. I don't know yet how "new" this stuff really is. Maybe just adding sizes that they didn't have before, or maybe newer updated aero and engineering? I'm going to try to find out. For anybody who wants to see what the latest pure BW stuff looks like check out the pics on this Full-Race page for the TS360:

Full-Race Motorsports LLC Call us toll free at (866) FULL-RACE

Anyway sometimes I think, let's keep it simple and just put a 20g on there or an S256 single scroll .55 a/r like your earlier car. H*ll if I had the money I would do them all, change it mania over a couple years. Have the full experience you know?

Gary

[Boosted98gsx]

FYI guys, the 6SL2 turbine is a midway between the 05H and 06, since there is a rather large gap between the two flow wise.

[talontsi97]

T whats size injectors do you plan on running with this turbo?