All you 18g people

[toofast82]

Ya for some reason subies always seem to just open up when you put any 16g turbo and above on them, I'm wondering how much power gains I'll see when putting the RVR manifold on. Is there anything I need to know about putting it on before I do it? Or is it a direct bolt-on.

RVR intake is set up to match 2g head ports
But guys have seen pretty good gains going from 2g intake to a RVR.
I think pboglio has experience with that

 

[Aproductions]

So if I'm only building for a street setup, its wise to go with something between a 16g and 18g?...20g spools too slow and costs too much.

is this what I want? and will it bolt up to my fp race mani?

Forced Performance 18G-6SL2 Turbocharger (DSM) - Modern Automotive Performance


Thanks

 

[dsmdeliveryboy]

The car is a 98 GSX, sorry forgot to clarify that.

So if I'm only building for a street setup, its wise to go with something between a 16g and 18g?...20g spools too slow and costs too much.

is this what I want? and will it bolt up to my fp race mani?

Forced Performance 18G-6SL2 Turbocharger (DSM) - Modern Automotive Performance


Thanks

Yes this is what you want, this is what I'm running but fully ported.

 

[Aproductions]

now for the price, I can get the forced-performance-18g-6sl2 or get a ported e316g.

how much more flow do you think I will see.

18G compressor wheel with TD06SL2 turbine wheel

vs.

16G compressor wheel with TD05 Turbine wheel.

 

[dsmdeliveryboy]

Well, look at it this way.. Similar, but bigger. Why not just go with the 18g either way, you won't be disappointed I can guarantee you that. I thought it was gonna be slow to be honest with you, and when I drove it the boost came on hard, a lot harder than a 16g. I guess its up to you..

 

[Aproductions]

well thanks for your help. I'll deff be going with the 18g with the TD06

I've heard of a few failures of the TD06sl turbine wheels over on NASIOC.

what is this about??

 

[pboglio]

Ya for some reason subies always seem to just open up when you put any 16g turbo and above on them, I'm wondering how much power gains I'll see when putting the RVR manifold on. Is there anything I need to know about putting it on before I do it? Or is it a direct bolt-on.

Gotta ditch the EGR, fab up something to reconnect the MAP sensor to an intake manifold vacuum/boost signal, and other minor stuff. Upside, after this you can pretty much swap the intake manifold in and out 1 handed cause there is so much room with the shorter runners. Gains are about 20 h.p., totally transforms the topend,. on an 18g it would be the "cats meow".

 

[dsmdeliveryboy]

That is subarus

 

[donniekak]

The 6sl2 is not an mhi turbine. If you do a search, lots of people have had problems with them.

 

[stealth mullet]

So if I'm only building for a street setup, its wise to go with something between a 16g and 18g?...20g spools too slow and costs too much.

is this what I want? and will it bolt up to my fp race mani?

Forced Performance 18G-6SL2 Turbocharger (DSM) - Modern Automotive Performance


Thanks

I hate to rain on your parade, but I think I bought the last 18g turbo from Forced Performance. Check their site, it is no longer listed.


Forced Performance Turbochargers: DSM Turbochargers

 

[Aproductions]

check maperformance

 

[stealth mullet]

check maperformance

I did. I actually ordered mine from them. Their site probably needs to be updated. They don't have this turbo in stock. When I placed my order, it was drop shipped from FP.

Typically when FP is out/no longer making a turbo, it is immediately removed from their site. Sounds like you need to find a vendor that actually has it in stock, which is like finding a needle in a hay stack since most things are drop shipped in the first place.

 

[dsmdeliveryboy]

I'm sure if you were to call FP they could work something out with you, I heard they have really good customer service. I've never heard of any dsm having problems with a FP 18g, and I don't have any kind of problems with spike or anything either.

 

[RipperXX]

Anyone know what the 6SL2 turbine was used on if it's not a MHI turbine? I have "heard" keep that in mind, of one having a melt down.


I know older diesel turbo's used differently alloys that couldn't/can't take the EGT a gas engine produces for long durations. Makes me wonder if it was off a diesel if theres truth to what I have "heard". Anyone?

 

[stealth mullet]

I've never heard of any dsm having problems with a FP 18g, and I don't have any kind of problems with spike or anything either.

Mine gets creep occasionally. It seems to occur on hot days. My boost controller is set at 15psi, and it's creeped up to 20-21psi at times. I'm running a ported evo 3 o2 housing, megan dp, and a modified 3" hks carbon ti catback. I probably need to port out the wastegate port on the turbine. Other than that, I love it. My car sounds totally different with the 6sl2 turbine. More like an evo than a dsm.

 

[Talon64]

I have a 18g slp2 rebuilt by fp because 2k miles it ate itself. They took care of it for a me at no cost. I run about 28 psi. Runs great till redline no drop. Spikes a little (30 psi) but holds firm. Had a wastegate made by jusmx141. Awesome guy to deal with. I am going to selling my 18g soon. No in out looks brand new. Fp is also a great company to deal with. About 5-6k on turbo now. Just want to go bigger even though I shouldnt.

 

[JusMX141]

I know older diesel turbo's used differently alloys that couldn't/can't take the EGT a gas engine produces for long durations. Makes me wonder if it was off a diesel if theres truth to what I have "heard". Anyone?

You can literally trace any turbo available for our cars bigger than an Evo III 16G back to diesel origin. Pick one at random....57-trim Garrett with a P-Trim turbine? Yep, diesel turbo.

My father's 1992 Freightliner generates 1200*f EGT's with the probe placed about 12" AFTER the turbo; a good buddy of mind has a probe in the manifold of his 2005 Dodge Dually and he's seeing EGT's around 1550-1600*f under a hard pull. I'm not sure what you think is a huge difference in EGT's between gas and diesel engines, but I'm not seeing it.



The 6SL2 turbines are all made in Taiwan and distributed by companies like Kamak Dynamics. The same company that builds the 6SL2 turbine also cast the turbine housing and compressor cover used on the FP 18G6SL2 and the GT Concepts Evo III GT.

http://www.kamakdynamics.com/1_5tw.htm

So far I've heard plenty of cases regarding turbine damage / breakage and thrust plate failures on the FP 18G6SL2 happening under the 5K mark; possibly the reason this turbo is being discontinued. Two Holset customers of mine had previously owned 18G6SL2's- one developed in/out play at around 2500 miles, the other had severe turbine housing cracks show up after just one year. Both customers noted that the HX35 which replaced their 18G not only outflows the 18G hands down, but also spools faster in the DSM bolt-on turbine housing from Bullseye Power.

 

[dsmdeliveryboy]

We'll see what happens I guess

 

[dsmdeliveryboy]

Boosting 20psi right now without knock, but I am at 80% IDC.. 3rd gear boost holds rock solid at 20psi, every other gear it seems like it spikes at 20 and kinda tapers off to 18psi. I'm not sure I'll be able to run boost that high with only 550's when the cams go back in though, I'm thinking about just trading my injectors for 650's for now and running the SAFCII until I get other important areas of the car done. Right now the car is still very quick, but I want quicker like the next person ya know haha.

 

[RipperXX]

You can literally trace any turbo available for our cars bigger than an Evo III 16G back to diesel origin. Pick one at random....57-trim Garrett with a P-Trim turbine? Yep, diesel turbo.

My father's 1992 Freightliner generates 1200*f EGT's with the probe placed about 12" AFTER the turbo; a good buddy of mind has a probe in the manifold of his 2005 Dodge Dually and he's seeing EGT's around 1550-1600*f under a hard pull. I'm not sure what you think is a huge difference in EGT's between gas and diesel engines, but I'm not seeing it.



The 6SL2 turbines are all made in Taiwan and distributed by companies like Kamak Dynamics. The same company that builds the 6SL2 turbine also cast the turbine housing and compressor cover used on the FP 18G6SL2 and the GT Concepts Evo III GT.

index

So far I've heard plenty of cases regarding turbine damage / breakage and thrust plate failures on the FP 18G6SL2 happening under the 5K mark; possibly the reason this turbo is being discontinued. Two Holset customers of mine had previously owned 18G6SL2's- one developed in/out play at around 2500 miles, the other had severe turbine housing cracks show up after just one year. Both customers noted that the HX35 which replaced their 18G not only outflows the 18G hands down, but also spools faster in the DSM bolt-on turbine housing from Bullseye Power.

I believe you for sure, because hell theres HX-35's etc on DSM's and other gas engines. I just recalled reading something like this in "Maximum Boost" May have been another book similar to it. And recalled it, and wondered if it might be possible. I do remember it clearly stating two different alloys being used for turbine wheels though. Well anyway.... (since those books are on there way to Germany with all my other crap) Continue on!

 

[dsmdeliveryboy]

Well so far I have over 1k miles on the 18g and checked for shaft play etc today and it has zero shaft play so far, I'll be monitoring the turbo closely though.

 

[dsm-onster]

I believe you for sure, because hell theres HX-35's etc on DSM's and other gas engines. I just recalled reading something like this in "Maximum Boost" May have been another book similar to it. And recalled it, and wondered if it might be possible. I do remember it clearly stating two different alloys being used for turbine wheels though. Well anyway.... (since those books are on there way to Germany with all my other crap) Continue on!

It's called iconel and the evo3 16g turbine wheel is made of the same alloy

 

[dsmdeliveryboy]

Don't you mean Inconel?

 

[dsm-onster]

damn "n" key. Yes I mean inconel: click.

 

[dsmdeliveryboy]

Which inconel are they made of though? Sounds like some pretty serious but fragile metal if they use it in places that get hotter than the sun but cracks extremely easily if tampered with.