CoolCharger

[H2Singh]

Fast H-Town Realtor - thanks much for that little lesson, it helps alot.

Thanks to HGW and Taz for their advise. Just wish you guys were down in So. Fla.

I will check with a lawyer I know about aftermarket warranty disputes with manufacturers, as that is my biggest concern and go from there.

by the way, i push 32 psi in my Evo VIII !, love the rush.

[shipbldr]

Damn!

I spent $4700 for my Mag. Radix supercharger.

Hummersgonewild (HGW) installed it for a little over $1000 bucks. (The installation was surgical!) They's done dozens of supercharger installs.

I bolted on a Borla catback for $900.

The acceleration on my H2 is damn frightening... and I haven't even spent half what your dealer is asking....

Call Hummersgonewild (http://www.hummersgonewild.com). At the rates you are looking at you could ship it to Jersey, get HGW to install it, and ship it back to your door and still be $5000 ahead of the game.

my 2 cents...

[MovinH2]

I'd say it's a pretty good deal. Almost 10k for the coolcharger plus the other upgrades, and labor. Doesn't seem bad to me.

[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 MovinH2:
I'd say it's a pretty good deal. Almost 10k for the coolcharger plus the other upgrades, and labor. Doesn't seem bad to me. </div></BLOCKQUOTE>

And you base this opinion off of what? Compared to what? Are you joking?

[HummerNewbie]

I am in no way an expert but that sure seems high to me. Could be wrong though.

[MovinH2]

So you can get me a Coolcharger for much less than 9K. If you can I have a few people that will jump all over that.

[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 MovinH2:
So you can get me a Coolcharger for much less than 9K. If you can I have a few people that will jump all over that. </div></BLOCKQUOTE>

Tell me how many kits you want and prefered method of payment. I will drop ship them to your door.

[HGW]

I read as much of this as I could--down with a cold--too many late night events recently.

The price is crazy and the charger is not the right one for an H2.

More later ........

[HGW]

shipbldr: I am ready to do the Predator 800 HP diesel for you! I know the guy of there.

[Timster]

First sign of the bearing going out is a noise or growling sound that comes and goes. Cold or hot it doesn't matter. I had this problem several times. When I took it to the dealer the sound was there then it's went away. Luckly it came back while they were walking away. The service Manager turned his head and I said "Can you here it now!"
I hope you do not have to go thru what I went through! You can see the bearing going out by looking at the pulley and compairing it to the other OEM parts, the pulley will start to wobble slightly, it's all down hill from there!
Best of luck to you,
Tim

[shipbldr]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by H2Singh:
someone real smart and organized jump in please, make it an easy poll or something.

1. Which supercharger is best for H2. Keeping warranty in mind - please!
2. What other mods are needed for maximum gain in performance - keeping value in mind, nothing too outrageously expensive?
3. What price is reasonable for the above answers? </div></BLOCKQUOTE>


Look... all the superchargers are going on the same engine block in the same truck.

So long as the supercharger is no overboosted and pre-detonating...

ALL the ROOTS-type units will be darn near the SAME.
ALL the CENTRIFICAL units will be darn near the SAME.

Blowing air is blowing air.

what changes things:

Intercooler (help)
New valve head (Big HP, big $)
Overbore block
Better programming of trans
Headers
Gearing

Note the above list has little to do with the supercharger. If the unit you buy is functional... the differences between brands are not very big on the street. You might see the differences at the dyno... but you will have a hard time seeing them at the stoplight...

my 2 cents...

[HummerNewbie]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by MovinH2:
Yes my main issue and my friends is the warranty. We were told that they would honor it if anything went wrong. Rather that be them honoring it or GM I'm not sure. </div></BLOCKQUOTE>

There is a big difference in if the dealer or GM honor the warranty. What are you going to do if you are a thousand miles from your dealer and there is a problem. It would be on your dime to fix it and then try to get them to reimburse you.

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by MovinH2:
From what I've been told even if you buy the Coolcharger out right and do the install yourself you'll have to pay over 9500. Is that wrong? </div></BLOCKQUOTE>

I am by no means an expert on this and just going off of memory what others have said but I think you can get one for between $4k and $5K.

[shipbldr]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Sportsdude:
Do you know how much HP/TQ gain on your setup? How many miles did you have before the SC install? Thanks
</div></BLOCKQUOTE>

I installed the Borla at 2,000 miles... the SC at about 14,000 miles.

The exhuast sounded great but made no difference that I could feel in performance.

The supercharger 100% changed the truck.

We didn't do any dyno testing and I probably won't unless I can find it for free.

All the information I really need to know I get when I step on the gas. It's really easy to blow people off at stoplights.

Cruises on the highway effortlessly at 80mph.

Downshifting on the highway and hills is now very rare.

I think faster, it goes faster. No downshift, no struggle.

More than anything it reminds me of a BMW 318 I used to drive. (This is high praise from me)

The entire driveline is just very stout and competent.

I have the feeling that it would be really hard to notice an extra 35-50 HP in on the road driving.

Next step up would be to do one of those predator 800HP diesels... That would be really sick!

Start with the supercharger. You may find that you are totally happy with it. If you aren't you can easily add things like headers and other goodies later.

Remember the 80/20 rule. 80% of the benefit usually comes from 20% of the effort/expense.

[Fastest H-Town Realtor]

Ok..a small blower lesson is called for here.

1-Centrifical blowers,like the Cool Charger/Powerdyne unit is going to build boost starting at about 2500rpms. The boost will gradualy increase as rpm increases. 1psi at 2500, 2psi at 3500,3.5 at 3500...ect. This type of unit makes its boost at higher rpms.if you go higher, like to 10-12 psi, the last 5 lbs would hit in a span of 2000 rpm. Hence, an absolute monster in the top end range.

2-A Lycholm/twin screw type unit starts its boost at 2000 rpm, but the entire 5-6 psi checks in by about 3500 rpm. Hence, a much better unit for low/mid range rpm levels.


The bottom line is that although a centrifical blower will make a difference in performance, the twin screw unit will give the more desired effect to the H2. And that is a kick in the ass down low.

The GM warranty covers drivetrain if nothing from the throttle body to the exhaust manifolds have not been tampered with. Yes, if you roll up with a blown block and a blower installed, the local GM rep is going to try to void out the warranty. This has been fought and won. It has also been fought and lost.

***OPINION***- I have my reservations about Coolcharger's warranty, and, to a lesser extent, Magnusons warranty. I do not believe it will turn out to be worth a hell'o beans if a major engine failure occurs. Understand, I have no practical warranty experience with the warranties of either product. ***OPINION OFF***

[H2Singh]

My dealership has finally offered some performance upgrades. Any one have experience with the coolcharger supercharger system. The dealer price is about $15K for the whole system which includes the CoolCharger system, stahl torque something, and titanium coated headers - not the exhaust, I already have it. Opinions about price, quality, impressions. They claim around 185 hp improvement & will honor my warranty. I have not negotiated with them yet, but have asked if they want to sponsor my vehicle since they just started offering it and have only done 3 vehicles. Thanks in advance for all constructive feedback.