txarrowhunter

Suddenly I have the itch to spend some money on a turbo. My brother has the htt 62/71/13ss and his truck is pretty impressive with it, but he has a cam, injectors, edge j/a, several fuel supporting mods, and on...

I want to keep everything reliable, and still be able to tow 10k# when I need it to. I currently have AD150 and 40hp injectors. Just made switch from edge to smarty jr that I bought from a guy on CL. I'm just wanting to reduce my egt's and get up to speed fast. As it takes my truck some time to get up to 60. I want to stay away from the smoke as much as I can. So what turbo would you guys recommend?
My local shop recommended me a silver 62 from II. But I'm lost on this.

madhat

I'm a HTT fan, but there are plenty out there.

When I ordered my turbo, I called them, told them my mods, and they recommended this one to me. Love it...

Jordan5687

62/13/65ss, you won't ever look back. Mine is just amazing! I may even be able to point you to someone to get it through. Pm me for details if so. I could tell a huge dif on my truck everything stock, just the turbo in that when it lights, hang on!...it'll pull hard. Anything larger, you'd better put tons more fuel to it...or being a standard maybe not so bad actually.

Jordan5687

Ohhh yeah...HTT all the way!!!

txarrowhunter

Well I'm going to give htt a call tomorrow and see what they recommend then see if the shop can order it for me and get a dealer discount and I will do the install. I'm definitely leaning towards them since they seem to be pretty popular, I think the real reason is cause I drove my brothers truck the other day from lufkin to Weatherford and the pull on it at fast accelaration was unbelivable. It pushed ya back In your seat pretty good and got up to speed fast. I haven't been in many decked third gens so I guess that doesn't really say much.

Thanks in advance guys and I would like to keep hearing from ppl that run them.

madhat

Call Lary, too... he has a DTR discount from them. I don't know what it is, but it might be better.

rip 112

I run a HTT 62/71-13ss and absolutely enjoy every moment of it. It has proven itself to me, like jordan said, when it lights, hold on!

I advised Jordan on a 62/65 for his need of towing performance with little mods. Seeing you are planning on a Smarty Jr and you have the same intentions, I would advise the same for you. a 62/65-13ss, 62/65-12 or 62/65-14 would be my suggestion to you.

Brian Lent

6 spd, 62-68-13 or 62-71-13. Silver 62 is 62-74-14 which is bigger then your brothers. The 6 spd's have no issues with the 71 wheel but the ED 68 wheel is a good compromise for future plans and will have some top end unilike a 65.

txarrowhunter

I just got of the phone with a guy at htt and told him what My intentions were. He advised the 64/65-13 told me that's there greatest all-around turbo, giving me great spool-up and best cruisin egt's. I told him about a 62/68 and 62/71 and he said I was going to be spoolin it 300-400rpm later on them.
What do you guys think?

txarrowhunter

Talked to a guy at II and he said for my truck they specifically built the silver 62 and that it will be an excellent turbo for what I'm wanting to get out of my truck. It is 62/74 14 he said it will spool great on my 07 with no issues. He also went on to say that the SS housings create and keep too much heat. I'm lost again.

White Ghost

i have the htt 64/65/14 and man it's a great turbo for towing and anything else you want to do.

soulezoo

What you are running into is a little of a "brand war" between companies.

The silver 62 has a large exhaust turbine that by its nature will be laggier to spool than the other offerings. Just for a general rule of thumb, the larger the wheel, whether compressor side or exhaust side, the slower it will spool. That silver series is also a turbo they make a larger profit margin on too...

The larger the turbine wheel, the less backpressure the engine will see... which is a good thing to a point. You want to choose a wheel that you will see the most time in the sweet spot if you will, which is always a compromise between low end spool and top end cooling.

The ss housings have proven themselves to be a superior performer. They have also had issues with wastegates... that is not to be discounted. They are also pricier. Is the difference in performance worth the price? That is a value judgement the buyer has to make. The cast iron 12 and 14cm pieces are long proven and are not a handicap. But you have to choose one.

With a smarty jr and 40hp injectors, you are not going to make a ton of power (I'd say with everything cranked up about 500hp) but you are well suited to need more air than stock. Towing makes spool a priority. Especially with those 35" tires. If you weren't towing so much I'd say the 64/65/13ss would make an ok choice. But, with the turbine wheel so close in size to the compressor wheel, there are some reports of surging with that setup. It would provide a little more air though than the 62mm. If you want HTT, I'd say 62/65/13ss. If you go with II I'd say their phatshaft 62 with a 12cm housing (roughly the same as the HTT) If you give Engineered Diesel a call, they would recommend their 62/68/12.

In any case, on an s300 turbo, the 62mm compressor puts out enough air to support 500-550hp, but not much more. The turbine size and exhaust housing will then determine your spool after that, since you're not really big on power and need to tow, stay on the small side of both. Also, the info you were given about 300-400 rpm later was an exaggeration. The difference between a 65 turbine and a 74 turbine (silver series) would be 3-350. But from a 65 to a 68 turbine (same size exhaust housing) is about 100 rpm and is about 200 with the 71. Again, with same EH and fueling the same.

Hope that helps you out.

soulezoo

I should mention on the stainless housings, the housing itself is incapable of "creating" heat as you put it (or as you wrote that II put it). It is capable of handling a higher level of heat by virtue of metallurgy than the cast iron and it also "keeps in" more heat, channeling it to the turbine. It is that property of thermodynamics that makes the housing work better than cast iron. Why doesn't everyone use it then? It is relatively new, it is expensive to make compared to cast iron and again, as I said above, the buyer may not see enough difference to make it worth the cost to themselves. HTT still sells the cast iron housings too...

Jordan5687

SS housing doesn't create heat, it keeps the heat inside so it doesn't dissipate under the hood so much, puts it out into the exhaust better how its supposed to be. It also withstands more heat than a cast housing, and its smoother so you get better spoolup. From all I've heard and read when I researched mine, SS is the only way to go...and with a 13, it'll spool like a 12, but move air like a 14, cause of its features.

Jordan5687

Well put soulezoo!!!