I think they can. 19.5 T td04 not modified but a real td04. Gtx 11 blade garret style compressor wheel, td04 9 blade inconel turbine wheel. 46mm . Upgraded thrust collar (14mm from 10 mm) Should be able to do 140.
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Dynamic autowerks stg 4 log e85
- Thread starter Mikenazz
- Start date
If I remember right, those stage 4 turbos still have a stock like exhaust turbine housing which is going to see a lot of backpressure compared to VTT GC or RB GFs.
On paper is one thing. 'Should' is the assumption till you realise you were missing other important info that then makes it a 'wont'. This is decent sized single turbo territory.
For the claims being made on power for the stg4 mid 140s plus mph is what you would expect if they can deliver on it. However, to date the reality of that is yet to be proven.
The GFs have pretty conservative hp claims relatively speaking, they are only just starting to be tuned up and ran but, currently I dont see anyone who has pushed them past what we have seen on stg2s . Arguably headroom 'might' be there. But, you can say so till it breaks into the numbers.
For the claims being made on power for the stg4 mid 140s plus mph is what you would expect if they can deliver on it. However, to date the reality of that is yet to be proven.
The GFs have pretty conservative hp claims relatively speaking, they are only just starting to be tuned up and ran but, currently I dont see anyone who has pushed them past what we have seen on stg2s . Arguably headroom 'might' be there. But, you can say so till it breaks into the numbers.
Horsepower claims and unproven targets. Sounds pretty familiar.
Filippo
Filippo
I did 126 mph trap on e40 only and 21-23 psi of boost on stage 2+ DAW turbos and only had one run at this boost and the track closed. No methanol or anything like that. Had some weight reduction but nothing like I am now.
Here are my stg 4s in action. Comparing them to my last 2 x17t turbos they have a more top and mid torque. Not a night and day difference but its there. Spool is about the same but takes slightly longer to reach 28 psi. I would say trap is around 135mph. My 17t's would trap at around 132mph.
132 11.0 on old rb 17t turbos. Ill trap speed the stg 4 soon but if you really want to see better trap results with big twins i would say you would definetly need some sort of free flowing inlet setup. Slightly Bigger Outlets(to match stock style compressor housings), very free flowing exhaust(external gate).
Good power there on st2+ . Looks like you just needed some good tyres for a 10. Did you pull the back seat out or anything?
I think outlets will give a relatively small but worthwhile improvement but, my thinking is that the real challenge is the whole turbo design at particularly the turbine and housing side. If the turbo works as intended I would expect 145mph terminals as representative of the relative size/claims to stg2s.
If you are talking 135mph and thats it, then really I could get that on my stg2(people have). Just going 4 or 5psi more and some timing or pull out some seats, run some mickey DRs and leave things as is.
I think outlets will give a relatively small but worthwhile improvement but, my thinking is that the real challenge is the whole turbo design at particularly the turbine and housing side. If the turbo works as intended I would expect 145mph terminals as representative of the relative size/claims to stg2s.
If you are talking 135mph and thats it, then really I could get that on my stg2(people have). Just going 4 or 5psi more and some timing or pull out some seats, run some mickey DRs and leave things as is.
Mike what inlets you have and outlets and exhaust? I have side dump short exhaust and we just ordered vrsf 2.5 inch relocated inlets with a hole in the hood and scoop to grab more air. I had oem location vrsf inlets on stage 2. Also have vrsf outlets.
You think I am able to get to 145 mph at 2900 pounds and like 650 wheel horsepower? I am super gutted with some carbon fiber sunroof delete and lots of other goodies
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Any pics and more info on this? Been heavily debating going that route myself, just haven't pulled the trigger because I haven't had much extra time to have anything mocked up or messed with. I was thinking of going with some oval pipes coming out behind the front wheels, but not at all sure if that's ideal tbh.
Its a good idea it's short and flows like crazy. I even have vibrant short resonators. I think its 1972 style.
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I'd love that too but there's not much space also it's close by the gas tank and it spits flames a lot I was kind of scared lol. Also where it's at now, has a lot of space for the resonators, since I daily drive this beezy and i wouldn't be able too if it would be that loud lol. Also it doesn't scrape a lot that much and goes through without touching 95 percent of areas.
Exactly, it seems like the best option for a performance-oriented exhaust setup without having to just dump at the DPs, and when do side dumps not look awesome? Looks great, do you have any pictures from below the car so I can get an idea of how you have it routed especially with the resonators? I think I will probably have one dump on each side rather than two on one side if it's possible but I'd like to at least get an idea on the routing!
That was my original plan, having some flat-ish pipes come out right in front of the rear wheels. But I don't want to risk any tire damage or potential gas tank problems and if I'm gonna do something as extreme as side exit exhaust in order to maximize weight savings and flow, I think it's probably best to just dump behind the front wheels/before the door instead
Before the door is going to be too much turning elbow I did a bit farther so it wont have such a sharp turn of pipes, btw the exhaust we took out without secondary cats and mufflers just the pipes itself we shaved like 32 or so lb. Imagine how much weight you remove even if you only remove 25 pounds and you now have the best flowing exhaust in the world for n54 except the hood dumps in single turbo cars lol.
Herea the whole youtube video of the making of side dump. We redid the last pipes after resonators for fatter ones after the video. I will be doing 3.0 inch pipes for stage 4 turbos
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