Turbo Kit for H2

[CHarris]

The Squires is a good kit, it just takes more money to make it work than a person might anticipate from the kit price. I considered it but decided not to because we have so much rain and sand on the roads in the winter. I didn't want that worry of debris getting in the turbo and engine.

As far as lag goes they size the turbo and the case to minimize lag. They have some great success stories over on LS1Tech.com

[HUMMERcustoms.com/TAZ]

PARAGON and CHARRIS
STS has a snorkel for the offroaders who will encounter water and for every day driving if it is wet they have a K@N dry sock to put on it. The lag is .05 seconds he said power is instant and kicks in way low in the RPM ranges to get the Beast moving. The guy I'm working with has been installing it primarily on LS1 engines on Camaro and Firebirds as well as Transam. He said to date not a single car has used a dry filter on thier setup and water is no problem. He has 2 cars and a SUV that his wife drives and they have never had dry cover on. He said unless You offroad do not worry about it as turbo is installed up high where the mufflers would be and You would have to be deep enough then for water to run into the cab He mounts it so high up under the body. I would not be running mufflers anymore. He says it will not be loud but catch attention when waste gate blows off. It remind Him of a small jet just alot quieter. He has been working with STS I think He said since 2003 before they won the 2004 SEMA award for most inventive new product I think is what it is called. There are still alot of questions to be answered and that is why I decided to look into this situation. The guy doing the R@D said we will not do it if they do not furnish everything. Injector, pumps, tuning, etc. I told Him if they would not cover His labor I would do that. He said if thier marketing will do what they have done in the past with Him that i would not need to do that as once they put pictures and article in mags He gets swamped. I hope it all works out. I should know more maybe tommorrow as I'm to call Him to see what they want to do. In the mean time I have arranged for a Magna Charger just in case they will not come thru. The Dallas guy said if I can come and let Him get it on a dyno on a early friday morning where He can have it by noon that He would be ready to let Me take it home on Monday and he as well as STS would warranty thier product and work. That would work great as My best friend lives in Carroltin and maybe I can get together with some H2 guys while in Dallas. Hopeful I could buy Hummertech lunch or diner and any other H2 guys that wants to come along on a lunch or diner I'll cover them also as long as we do not have 20 guys going to eat but, then again I guess I really do not care I'll just get a credit card limit raise and feed everybody.. The only thing worrying Me is he said they want Him to design a single turbo setup and go up in size of turbo for the h2 but they want Him to put a twin turbo kit on My H2 using a little smaller turbo as they would like to offer both to H2 owners and that means i will have to do something to tranny as it will most likely not last long. Can you guys tell Me what i need to be looking into doing to tranny if they go dual turbo, install a kit and new converter or what? I would really appreciate some input on this to prevent a catostrophic tranny failure before it can happen. I have little experience with automatic tranny in high HP situation as I always ran manual. Please let me now what I need to be getting started looking for or lining up the tranny beef up if this project get approved. He said that I would like even the single turbo setup with this system over a supercharger. He said it spools up real quick with alot more low end torque. But C You are right it could get very expense with them not coming with injectors etc. with kit. Guys I'm told that by putting the turbo back under the rig it reduces turbo temp by roughly 700 degrees and that the cooling is so good in pipes You do not need an after cooler. Now that is with single turbo so i wonder if a twin setup would need a cooler. He is telling Me that We can get 1000 HP if i want to run aproximately 20 pounds of boost. Sort of scary but i have driven rail dragster with that much or a little more. So help Me decide what to do about tranny for this setup and that HP. I may even have rearend problems not sure so anything you guys can think of will be appreciated as I'm sure I have over looked somethng else that would need up grade with the twin setup.
Thanks For Any Help With This.

TAZ (Rick)

[CHarris]

Taz,

I'd say check with these people on the transmission...

http://www.flp2win.com/cart/transmission.php

I'd look to the level 5 4L65 transmission to set you up for whatever you want to do. Lot's of Camaros run them and they fix it for free if you break it.

[HUMMERcustoms.com/TAZ]

Hey thanks C
I'll start looking into it so I'll be prepared.
Just got off phone with guy on the STS and He is talking with Rick one of the owners and they have a small problem as on the website they are saying in FAQ's dual turbo's not necessary which both parties are agreed upon as far as F body's go. It will not help but, as My converstion with them and the R@D guy backs Me is that on a 6500 lb rig a twin set up would make a big difference as We all know a small turbo spools up quicker and that is what I'm looking for. In a single turbo they size it so there is no lag but it is slower to spool than the size that would be used in twin setup. You would not increase boost but split say 5 psi per turbo instead of 1 turbo with 10 psi to help protect engine etc. He said with the twin You could easily get 1000 HP but stock engine and drive train cannot handle it. I agreed but I was not wanting 1000 Hp I want 500 or so but quicker out of the hole which is what twins would do versus the single. So they are kicking it around some more as STS was trying for an entry level bolt on kit and seems maybe were not thinking about larger rigs running it like H2 or big 1 ton truck. They have just been looking mostly at the F bodies. So they agree in the use We H2 guys would want a twin for but had not thought about it i guess not sure. I told them H2 owners spend I'm guessing way more on there rigs than most people spend on add on for there rides cause We a fanatics and most have the desposable income to spend. Why would you want to leave that market out of the kit offering of twins if they want to spend the money. So basicly We are down to discussing single versus doing a twin setup. I'll just be glad to get it decided and over with so install can get done. I may wait a little more and just go on a put on Magna Charger if it drags out much more, I have one waiting on me if I want it but thought this interesting enough to follow it for a while. About to give up and get My Horses I want. Lack of patience I guess. I could have already had it on a month ago and having fun. C also You are right on the money as far as injectors etc. The R@D guy said He is going to larger injectors on his f body and that We would absolutely go with larger injectors etc. on the h2. So there is added expense just as You told us. If paid for and you buy upgrades inj. etc. with labor it is looking like a person would spend around $5000.
If You install Yourself and leave stock which it will work well that way it is around $3900. Stock injector will work OK only because the kit is designed to work with them. But You will leave power on the table but You get safer power for the ride as it is designed as it will not put much stress on stock sys.
thanks again C

TAZ

[CHarris]

No problem... gald you got the info you needed to make the best decision. As I said I was tempted by the STS kit. I was especially tempted because they are based in Utah and the shop is about 800 miles away. I would have taken the truck over and got it protoyped right there. Had I done it the H2 would already be protyped and ready for mass consumption

The cool thing is that whichever you choose you can pass some of your current mods on to other power hungry H2's. You don't need the programmer or the Cold Air intake that you have anymore. Neither kit will require them.

[HUMMERcustoms.com/TAZ]

C I just thought about not needing those parts today as well as I will not need the 2 40 series brand new flowmasters either with dual tailpipe. Actually He said they would R@D from exhaust port back but in My case they would leave the headers on and alter mine abit. I told them i still have all the stock exhaust stuff if they wanted Me to bring to use. He said they only thing they would use would be exhaust manifold and since i spent the money the headers will be just fine. I will get a little perf. help from them but not much. R@D guy wants to try them as He is thinking although headers a not supposed to be needed He is thnking that the large size and smooth flow could benefit the turbo and help it spool even faster. I told Him what ever makes Him happy.
Thanks C for Your help. I have not called the tranny company yet but do they do just an upgrade to My new tranny or do You have to buy thier tranny. They are close enough i could take a road trip and let them rebuild mine or at least trade it in for some kind of credit. I'll get in touch with them but thought you may have already heard anything on this type of swap out.

TAZ

[JZ 97 SS 1500]

Hey guys, with the correct turbo in either a twin or single setup you could virtually do away with lag all together. As for mounting location, the further you mount the turbo away from the heat source the more lag it will have. I have several customers running the STS sytle system which are now switching back to a conventional system due to the lag created from the heat loss. Remember, turbos are tested and developed using 1100 degree inlet temps. When you mount a turbo in the rear, your lucky if it sees 600 degrees. Which means the turbo does not get enough exhaust gas velocity to efficiently turn the turbine, and the compressor map is shifted way out of its efficiency range.

For the ones that have contacted us, we will try to design the system around what you are wanting and what the general public wants. Feel free to voice what you want. We are figuring a quick spooling torquey setup looks to be the general consensus.

For any others interested please contact Dalton directly at 1-210-657-2706.






Thanks

Jose

[PARAGON]

Jose,

I am far from an expert here but some statements don't make sense. "As for mounting location, the further you mount the turbo away from the heat source the more lag it will have." "I have several customers running the STS sytle system which are now switching back to a conventional system due to the lag created from the heat loss."

Now, heat is a negative for all engine induction systems. It is very misleading to say that further from the heat you get more lag and lag is created from heat loss. While, if you take a standard turbo that it used in the standard setup and place it back in the exhaust flow to where the temps are lower, that turbo's efficiency might be effected, it would simply be a case of redesigning a turbo for that application just as you would any thing else. Certainly the idea of less heat transfer is notable, even if you don't subscribe to the whole relocation idea.

Now back to your original comments. Again, I am no engineer, tuner, builder, expert or anything but if the turbos are designed to turn X,XXX at XXXX temperatures then the turbo "should" be MORE efficient when the exhaust temperature is lower. My reasoning behind this is that colder air is more dense than warmer air (same idea as on the intake side) and since the air is colder and more dense it would be spinning the turbo more, not less.

[CHarris]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by RLTAZH2:
I have not called the tranny company yet but do they do just an upgrade to My new tranny or do You have to buy thier tranny. They are close enough i could take a road trip and let them rebuild mine or at least trade it in for some kind of credit. I'll get in touch with them but thought you may have already heard anything on this type of swap out.

TAZ </div></BLOCKQUOTE>

They are going to want your transmission as a core or to actually build your transmission for you.

About those headers... I wouldn't use a $1000 set of long tube headers as the basis for a underhood turbo set up. They sell "log" type headers just for that purpose and they would be cheaper. Personally, I think you are better off to take the long tubes off and sell them. You should be able to recoup at least 60% of the purchase price of the headers if they are stainless. As a matter of fact, my friend who just put a turbo on his LS1 Camaro (11.50 at 120 on his second dragstrip pass!) used a log style. The turbo will push the exhaust gas through just fine.

[HummerH2]

Im doing a turbo if someone wants a good installer pm me

[NU2H2]

Hey All,
As some of you may know I have been a member on here for a little while now and have done more reading and learning than posting, however I feel I must reply to this thread. I am the Regional Sales Manager for STS in the South/East region of the US, and I have never brought it up as I dont feel it is right as I am not a sponsor nor do I participate enough yet to have earned the trust and respect of the fellow members of this great site. Having said this I am a little intreagued by the comments made by a fellow turbo company. I Think maybe each turbo system should be sold on its own merrits not by claiming so-called and unfounded failures or short falls of the competition's systems. Our system is not for everyone but please let the consumer make that choice. I am not really sure that a conventional turbo or a supercharger system will be a sound investment for those who "hard core" off road and sink the H2 in water up to the doors during river crossings, its horses for courses.
Let the fun begin there will be more that a couple of companies offering Forced induction for the H2's and there is room for everyone and every type of kit.