Hahn super 20g turbo

[asian312]

I appreciate your patience with me and see your points.

Reading the comp map, between .20 and .30 I deducted that each line was .02. Therefore that puts it right outside the given graph. I was wrong about being below 65%, but it's with in that ball park. I agree completly with the 46 trim / TO3 housing combo and the loss in effiency. I'm not hiding behind this excuse, but as I said b4 this is the first and not last of these variants. It's a starting point to start considering other combos. JW asked me the same thing, but like I told him, this is an extension (more like test) off the turbo in Wade's GST. But definitely after this insight, I'll be anxious to see what this does and what's next in line.

Your comments on the flow bench are much enlightening, but how does that still compensate for the "closed" loop of the engine. By drawing a line across the map at a given PR does not compensate the fact that the original map was not created with any flow restrictions. I understand the changing of PSI and the vertical shifts, but what about a constant psi and change in the restriction?

I'm much enjoying this conversation and absorbing still more new info., but alas the def com level of my nose has once again risen and the sleepy medication is taking it's hold upon me Till tomorrow!

 

[ItsStockOfficer]

Yeah, the closed loop of an engine does not affect a turbos effciency. Theres the pressure the turbos blowing into, and how fast it has to spin. The turbo has no way of knowing or being affected by anything else.

 

[Spike3099]

I didn't want to start a war here, I thought of buying hauns turbo cause it's cheap 1299 for the super 20g with install kit and o2 housing. they use a 10 cm housing so you do not need an external waste gate and the internal waste gate can hold more boost. but now I don't even know if I want to buy them.

 

[ItsStockOfficer]

external gates add power and sound amazing, and chicks dig them, why would you NOT want one =)

 

[candela]

add power? chicks dig em? Explain....

 

[Dannyboy1201]

I use the S20G and Im happy with it its gave me what i paid for, It is laggy and sometimes I wish i went w/ something else but ahh oww well.

 

[asian312]

They way I see it, unless u are caught up in the ever ending quest for perfection or just a tuning freak, the majority of us want to choose the right turbo that is suited for us, the first time around. And with all these new dooma-hickies and thinga-ma-gigs coming out, we get cought up in them and tend to forget what has been proven. Y is this, it's our nature to be individualist and to be different. Y am i in helping the R&D with this turbo? B/c I didn't want to deal with the hassle of a 20g. The Hahn Super 20g is a turbo that functions, and also a well rounded package. Those that want as all inclusive package can find it here. The design is questionable, but it only counts to whom owns it. And whether u are happy or not with it. It's like selling a car. It may be worth 10K, but your only gonna sell it for what people are willing to pay for it.

And besides, the majority of our turbo bickering is between our own community. It's all in fun and knowledge, but sometimes it gets out of hand. Straight up, I dont mind loosing to another eclipse, but a vette or porshe, now we're talking blood . So my resolution for the NEW YEAR is to be more open to those just joining our community, and more tolerant with the same questions that I have asked and heard over and over, time and time again. Yes there will be those that are stubborn headed and try to twin turbo a DSM or peech by the Nology Hotwires, but the next member that doesn't feel welcome or is timid to ask may be the next fastest thing at your track. Happy holidays everyone and lets start the New Year with a BOV salute!

P.S.: Not sure y I types this, just felt compelled to.

 

[Dannyboy1201]

Its cool man you give alot of good details in your arguments I agree w/ you the S20G is not great but this turbo has been on this car for over a year and its still running strong. Next turbo on my list is maybe a L3R or 2R ahh i dont kwno maybe ill run this till it blows.


Merry Christmas man.

 

[asian312]

Not so much that it's a bad turbo, but it just doesn't have the effiency that some of the others have that are in it's class. Just a thought, maybe try to see if a TDO6 or TDO6H turbine wheel could be mated to it? A new turbine would breath life back into it and much more cost effective than a new turbo. The potential is there, just need to untap it

 

[jw]

A 50trim to 60-1 will be a better match for the TD06H IMHO. The reason for such a big TW is to reduce the PR between the intake and exhaust. If your PR is less than 2, then you would be better off with a smaller wheel to reduce lag. If the PR is greater than 2.5, then a bigger wheel will allow it to breath better. You'll want CW capable of running high boost with the TD06H or a CW that push enough air or it's not worth the lag. By looking at the maps (the turbos I mentioned above), you pick your CW. 50trim for high boost (w/ good efficiency) with less lag to a 60-1 for pushing a lot of air but a little more lag. In between, there is the 60 trim that I didnt mention.

I am curious to see how the 46trim works with the TD06H. It may not be the best match but it should still have plenty of top end running high boost (check the map for efficiency) because the the exhaust wheel.

 

[asian312]

Always wise my friend I agree with the larger comp wheels and housings as discussed previously. Think I may need to start arranging for an upgrade after testing of this one, . Honestly my goals were modest and if this can get me there, then it has fulfilled it's purpose. Dont mind loosing to u JW, but when u and Wade left Mouton and I like we were standing still, I was to say the least . . . very impressed!

Both the maps u speak of for the 50 and 60-1 trim though are in TO4 housings correct? As ItsStockOfficer correctly pointed out:

The 46 trim hits max mapped airflow at the same around the same PR....but its ~44 lb/min AND ITS MAPPED TO 60%....not 68. Tell me this isn't an extremely large difference? And remember, the 46 trim is mapped in a TO4E housing, in a T3 housing its going to be considerably less effcient, on the order of maybe 4-10%, with the larger losses being at high boost(and DSM's boost HIGH, near the top of maps).

I do not have access to maps with either of the CW u mention or my 46 trim in a T03 housing. Therefore, my knowledge on this area is less than par. However, we will soon see if:

1) The larger TD06H TW being more efficient at flowing more air and aiding top end will compensate for the CW lower effiency. Or perhaps rearrange the map given the turbine side being a bottleneck.

2) Perhaps maybe the 46 trim wheel is capable of more than what was previously seen.

I'm curious to see, "Of course you don't want to have a 300 hp compressor wheel and a 500+ hp exhaust wheel. Then again, its experimentation with a new system and Im anxious to see what it will do, this may be a good way of doing things." <----Best said! Regardless, hopes are high, but I'm not shooting for the stars . . . Yet!

 

[Turbo]

I really noticed that my turbo has alot of top end. When I first installed it
I ran 12psi ....... I was impressed ... but it did not put me where I wanted to be . When I finally got the suporting mods done & turned up the boost.... to 1Bar & beyond ....... MAN O MAN !!! I will tell you this ... this turbo will push more air than my stock head & cams accept. Now who has a Buschur stage 3 head they don't want ?...........

 

[jw]

Check out turbonetics website on the comp maps. Read them and understand them. The maps are T04E which means they tested flow in T04E housing?

Instead of going through a bunch of formula and physics. The bottom line is you want a CW that is capable of maintaining boost level you desired at high rpm. A smaller wheel will have no problem doing it at low boost but what about high boost? Can it maintain 26-28 or even 30+ psi all the way to 8000rpm (or whatever rpm you plan to run)? And what efficiency are we getting running at that boost level?

Is there anything wrong with mating a 300HP CW with a 500HP TW? No, but the question is why you want to do that? If the CW cannot push enough air or is not efficient beyond 300HP, then the 500HP TW will just give unnecessary lag.

 

[TURBOSPYDER]

Originally posted by Dannyboy1201
I use the S20G and Im happy with it its gave me what i paid for, It is laggy and sometimes I wish i went w/ something else but ahh oww well.

Yes, I feel the same way.

Ive managed to kick some ass with this turbo though regardless of what peeps say about it. I guess its time to sell and go bigger.

 

[rdrkt]

Originally posted by TURBOSPYDER
Ive managed to kick some ass with this turbo though regardless of what peeps say about it. I guess its time to sell and go bigger.

If you are only getting 105 traps out of a super 20g going bigger isnt going to help you at all. Its all in the tuning my man.

 

[TURBOSPYDER]

Originally posted by rdrkt

If you are only getting 105 traps out of a super 20g going bigger isnt going to help you at all. Its all in the tuning my man.

Yeah, my tunning is all messed up. I ran 105mph trap with no tunning. I plan to keep the turbo for now...

 

[eokorley]

Originally posted by rdrkt

Lag is way over rated. But in your case its a blessing Mr 2wd.

Nice car !!!

I have 1991 Eagle Awd and I need a Machanic Manual do you how I can get one

 

[20gst]

With the correct set up you can pull over 410hp to the wheels like I can with the HRC super 20g on STOCK bottom end !!!! YES you can. These dudes aint telling you s#*@ !!!!! My 20g kit fits like a glove and everything was correct !!!!
Alot of people just want you to buy big names and crap, but I will tell you the truth Ive seen other 20g set ups that are far better than the HRC, but the HRC kit is a real good kit.. Not many people can beat me here in Colo. Springs or Denver. My best one yet is when I raced the new Vette and Viper in a three way 3 lane drag and alot of people bet against me big time!!! Both cars tore me up till mid track, but once I hit 3 gear and 25psi of boost I passed and beat em by far... The Viper wanted to do it again and again he lost. Everyone was laughing at that.
Last week I toasted a 300zx with twin HKS gt series turbos, he was fast as hell, but again my set up killed him...
Im having fun with my HRC 20g, but if I had money to blow again I would get an HKS or other set up. Wish I could take you for a ride and show you my hook up so you can feel the power.
Good luck....