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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #41  
Old 04-15-2005, 02:19 AM
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Jonahs
I am probably wrong on kit price. I know they went up on some to $4495 and to $4995 and left the basic f body kit at $3995. They added some Toyota kits or may have been Nissan. I know i had talked a guy that did a R@D on a new
Pontiac GTO that You and I talked about before. That may be the higher priced one. I had figured one with an increase was the trucks and SUV because of the cost of the extra coated pipe and the bigger turbo that many dealers are recommending and thought maybe STS had added them to kit for the SUV etc. I'm not sure if they were changing size of waste gate or just spring to control boost. I know you will get the best price up front with you doing the first run kit. I hope they can or will sell it for the $3995 straight up with all the stuff you have told them they need to do. You may check website I have not been there in 3 or 4 months. I know they raised price on some newer kits, just thought the big rigs caught the increase.
The kit should come with a tuned PCM done by Nelson for the Kit that will adjust computer and fuel pressure if I remember right and you just mail Nelson your old one. That is what I understand also about basic kit on the install and run, a guy should be able to buy the kit install and add the new PCM, fire it up and go. It is designed to leave everything on the rich side just like the superchips does the superchargers so it does not get into a lean situation. You could run the STS with not ever hooking anything to it just follow install and get a good kick in the pants. I know the f body cars have been real successful with install and run it like it comes. I think You told Me but they have dealers in Nashville and another eastern city You mentioned. Last fall or late summer east Texas was the eastern most Dealer. I do not remember the city now. I had asked about choice going east towards Memphis and past, there was no one at that time. I can get to Nashville as quick as i can or actually maybe a little quicker than Ft.Worth or the metroplex area anyway. I drive real fast. I know I have made Nashville in 4 or 4 1/2 hours with no stops.

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  #42  
Old 04-15-2005, 02:39 AM
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For those interested in this system here's some added technical information based on my conversation with STS & inspection of my H2.

Two primary concerns I've read in past threads had to do with turbo damage & water. STS has designed & installed many kits on vehicles MUCH lower than H2s & after getting under my H2 tonight & visualizing where this is going to mount here's my observations:

The turbo replaces the muffler, always towards the rear of the muffler. When you look at the H2 muffler location it's obvious the turbo will be mounted very high and if you ever damage the turbo you've already damage a great deal more like your driveshaft, fuel tank, frame, etc. It will really be protected I think.

Most just stub the intake right off the turbo with a K & N filter (included in kit). However, STS offers a simple flexible snorkel that allows you to relocate the filter to a location of your choice. The H2 is perfect. I observed where you could locate it up inside the backside of the wheel well and would end up 8"-10" HIGHER than the TOP of your rear tire. If you were to submerge your H2 in water that high you're doing some serious fording.

I post this information to address some logical questions that may come to mind.
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  #43  
Old 04-15-2005, 02:09 PM
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Great news. STS called me today & said they are shipping my kit!
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  #44  
Old 04-16-2005, 12:23 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by LasVegas:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">quote...RLTAZH2 The kit for GM SUV is $4995 I think is latest price not sure </div></BLOCKQUOTE>Thanks for all your support & input TAZ. I think you have a typo here. THE KIT IS $3995 LESS ANY DISCOUNT I CAN GET US.

Least expensive place for the tire monitor is Vulcan Tire in Utah Vulcan

On other technical issues TAZ, I was speaking with Darren @ Dawes and he had some interesting info. On basic systems with like 5 lbs boost many times you don't even have to tune or change injectors. Just turn up fuel pressure. Of course it depends on what you want to accomplish. As you say there's a wide range of options from basic "wake it up" boost to screamers. The nice part about this system is you CAN just buy the kit, install it yourself in 5-6 hours & you're turbocharged for $3995. The most you might want to do is have someone put a scope on it & turn up the fuel pressure a little if needed. My Dawes gauges have already told me that at WOT in open loop H2s are really on the rich side. </div></BLOCKQUOTE>


1-Isn't "open loop" a warm up program? The PCM should go "closed loop" upon the temperature sensor reading 180ish degrees. Does that effect air/fuel ratio?

2-Increasing injector pressure drops fuel pump flow dramaticly. Has the turbo company wide band fuel monitored such a mod?
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  #45  
Old 04-16-2005, 01:08 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Fastest H-Town Realtor:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by LasVegas:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">quote...RLTAZH2 The kit for GM SUV is $4995 I think is latest price not sure </div></BLOCKQUOTE>Thanks for all your support & input TAZ. I think you have a typo here. THE KIT IS $3995 LESS ANY DISCOUNT I CAN GET US.

Least expensive place for the tire monitor is Vulcan Tire in Utah Vulcan

On other technical issues TAZ, I was speaking with Darren @ Dawes and he had some interesting info. On basic systems with like 5 lbs boost many times you don't even have to tune or change injectors. Just turn up fuel pressure. Of course it depends on what you want to accomplish. As you say there's a wide range of options from basic "wake it up" boost to screamers. The nice part about this system is you CAN just buy the kit, install it yourself in 5-6 hours & you're turbocharged for $3995. The most you might want to do is have someone put a scope on it & turn up the fuel pressure a little if needed. My Dawes gauges have already told me that at WOT in open loop H2s are really on the rich side. </div></BLOCKQUOTE>


1-Isn't "open loop" a warm up program? The PCM should go "closed loop" upon the temperature sensor reading 180ish degrees. Does that effect air/fuel ratio?

2-Increasing injector pressure drops fuel pump flow dramaticly. Has the turbo company wide band fuel monitored such a mod? </div></BLOCKQUOTE>Current 02 sensors have heaters & go into closed loop usually in less than a minute. They remain in closed loop with the PCM except at WOT where preset PCM program takes over. It's then in open loop (02 sensors not affecting PCM) while at WOT.

We're talking about turning up the fuel pump pressure regulator and yes there is a limit to this.
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  #46  
Old 04-16-2005, 04:45 AM
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Jonahs get us the numbers on how much the fuel pump regulator can gain in fuel pressure and flow by volume if posible. It would be very intersting to see how much pressure can be increased by.
Exciting stuff for sure.
thanks
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  #47  
Old 04-16-2005, 02:37 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by RLTAZH2:
Jonahs get us the numbers on how much the fuel pump regulator can gain in fuel pressure and flow by volume if posible. It would be very intersting to see how much pressure can be increased by.
Exciting stuff for sure.
thanks
TAZ </div></BLOCKQUOTE>This isn't anything official and STS has nothing to do with it so no numbers. That info came from Darren @ Dawes based on what some of his customers have done. The pressure regulator in the H2 is at the fuel rails & I haven't researched whether or not they are adjustable because I don't intend to do that. When I install the STS I'll check & see.
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  #48  
Old 04-16-2005, 03:32 PM
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FWIW, KenneBell makes this:
http://www.kennebell.net/accessories...boostapump.htm
It's on mine.<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> The Kenne Bell BOOST-A-PUMP™ is fully adjustable from 1% to 50% with the mere turn of a dial, so pump output can be varied to match your engine's needs. </div></BLOCKQUOTE>
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  #49  
Old 04-16-2005, 06:29 PM
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Ken when You did Your Lig. did You add an extra pump or just add the boost a pump? That is so cool.
Email Me some of your thoughts on this and settings You have been using so forth.
Thanks
TAZ
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  #50  
Old 04-16-2005, 08:25 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> Posted by TAZ:
Email Me some of your thoughts on this and settings You have been using so forth.
</div></BLOCKQUOTE>Gotcha.
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  #51  
Old 04-17-2005, 08:17 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by RLTAZH2:
Ken when You did Your Lig. did You add an extra pump or just add the boost a pump? That is so cool.
Email Me some of your thoughts on this and settings You have been using so forth.
Thanks
TAZ </div></BLOCKQUOTE>TAZ...in the for-what-it's-worth category STS does not think added fuel pressure in the H2 is necessary at 5-6 lbs boost.
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