ECM Modification By FeatherFoots Friend

I hope I didn't put a knot in anyone's drawers with my tennis `shoe comment'. I know that Tone is out of town for a couple of days and I wuz sorta fillin in for him.

I don't know why, but, a friend of mine has the code for all of the GM computers and the computer in the VX looks just like the GM ones.

Any of y'all want me to persue this any further??

If the safety margins aren't great enough to allow some significant improvement he may not think it worthwhile. I know that he pulled another 30 HP out of Deans '94 350cid with a little more timming and more fuel.

will probably need 25 to 35 units prepaid to make it happen. Will probably cost in the $350.00 range. +/- 25%.

post it. I'll read it.

FF

If there actually is a significant improvement I am down, but I don't believe we can get that many pre-orders. If you could you should have it programed for the S/Ced engines, we could probobally pull 10 pre-orders for that if it showed a 30hp increase. If we are willing to pay $3,000 for a +75hp SC, why not another $350 for + another 30hp?

$350 for 30hp is cheap - I'm in - IF - it's really there. There are precious few things you can do for an additional 30 hp - hell the S/C is $2600 (+ INSTALLATION) for 50 hp - $350 for 30hp is a bargain!! I guess you'll have to convince me (and many others here) that it's true, and then you'll have no problem getting your pre-orders - hell, you'll probably be inundated!! Guess we've all been somewhat jaded by the promises of xtra hp with cheap rip-off "gadgets" to the point that we are sceptical of these "easy hp" claims. Get Tone to back it and you'll sell all you can make!!!

John I am in! With the SC we can use the additional programming...

Might they be able to remove the limit on the top speed?

-Dave

Is this 30+ HP at the wheel? If it is im in, and if it isn't....well im still, and if theres not top speed restriction....dang it just gets better doesn't it?
________
Live sex webshows

I'm down for whatever you can find out FF. 30+ hp today is just another step closer to 650 hp tomorrow. :p

It's a go!!

My buddy sez he will but can't start until after the end of the year.

FF

He also sez it will work on all of the 3.2L and 3.5L v6 engines if GM/Isuzu havent done something wierd.

FF

I'm wondering how much hp/torque improvement SC'd VX's will see... I'm interested!

Quote:

---

Originally posted by Dallas4u
I'm wondering how much hp/torque improvement SC'd VX's will see... I'm interested!

---

very, very interested

What will the mod require? Send in the whole engine control module? Will a core be needed or will the module be sold outright?

1 version for normally aspirated and another for S/C'ed?

I'm game for a SC version...

Quote:

---

Originally posted by AREA 51
What will the mod require?
1 version for normally aspirated and another for S/C'ed?

---

He does a couple of methods currently.

One is to send in the module and get a single program loaded into it. With `next day' service you have your ECM back in hand in 2 days.

The other is a programmer with multiple programs. A current version has 1. your stock program - 2. A fuel economy program - 3. A towing program and lastly (4) a performance program.

You have the ability to change programs as/when your requirements change.

Dean went through the chip replacement thing with him and we swapped chips a couple of times because Dean didn't want a generic performance chip. He is very happy now.

FF

This sounds very promising, especially the ability to choose between 4 different programs.. Would that be by switch? I know I'm jumping the guns but, can you give any more specific info?

The multi-programable will be able to deal with the torque management, tire size , shift points etc.

ALL OF THIS is based on his being able to work with whut GM has done. but as a minimum we should be able to tweak the ECM nicely.

FF

$350 for +30 HP is a bargain! Keep in mind that if it sounds too good to be true it probably is. We were promised +49HP with the supercharger. I didn't dyno my pre-S/C'd VX, but after the installation it dyno'd 187 rear wheel HP, much to my disappointment.

Talk is cheap. Show me the dyno results, and I'll show you the $350.

Rick

count me in if you can change the rev limiter....(not just the top speed limiter)

Also, I am in the process of installing a ECU computer out of a manual tranny trooper 3.5.....will it work with my new computer???


P.S. Featherfoot, Has the supercharger ever been installed on a manual trannied Trooper or Rodeo? Any computer related issuses?

Thanks


Allan
99 VX on 36"s

I'm interested if the 4-mode switchable is possible and there's good rear-wheel dyno data to support it. I've seen that mod for other domestic trucks, so it's do-able with a GM ECM.

I'm still on the fence about an S/C.

I'd like to see an N-way programmer too, and I'd like to see at least one program specifically tuned for an engine with the SC.

The question I have is will both the OEM fuel pressure regulator & Injectors handle the increased fuel flow required, especially on a supercharged engine.

Dragon Bob;eekg;

Bob poses a good question; will the stock fuel system components be up to the increased performance?

My question is will the automatic transmission be able to handle the extra HP and torque? Just how far can we push the poor slushbox before it breaks?

And then there's the warranty issue. I know there are owners on the board that don't want to install an aftermarket air filter on their VX for fear of it messing up their warranty. What do you think the dealer is going to say about reprogramming the engine computer?

All that said and done, put my name down on the "interested" list.

Quote:

---

Originally posted by Zu4two
And then there's the warranty issue. I know there are owners on the board that don't want to install an aftermarket air filter on their VX for fear of it messing up their warranty. What do you think the dealer is going to say about reprogramming the engine computer?

---

Well, those people aren't going to put the air filter on, so they probably wouldn't think about doing this either. I'd say, if you are still in warranty, don't even think about it.

I have an SC and I am deffinatly want in as long as we know it works. My VX is a daily driver, so I can not have it down for to long. But This sounds Great!

Featherfoot:

I would want an explination of yoour earlier claims that the supercharger was covered under factory warranty before I would believe your claims, or consider sending even more money your direction.

Many of us are still quite upset over this.

John C.

Quote:

---

Originally posted by Hotsauce
Featherfoot:

I would want an explination of yoour earlier claims that the supercharger was covered under factory warranty. Many of us are still quite upset over this.

John C.

---

I'm a little perplexed about that myself. I was in the meeting between Alpine and Isuzu where this was discussed favorably. I was told to post the possibility in this forum and on the internet. I said I would when it became a fact and was told to post it immediatly. I did then Isuzu recanted their position and I started rasing hell about getting some sort of warranty. That's the reason there was the purchasable warranty offered.

I berated that so much that I was terminated on the 3rd of January this year and haven't been gainfully employed since.

Now I'm being blamed for you not having a warranty.

Thanks.

FF

I am blaming the messenger for the message, yes.

You did post that you had a letter from Isuzu that the SC would not affect factory warranty, even for self installation. This was the key point that pushed many of us over the edge to make a purchase.

Purchasable warranty was never offered. Some warranty was offered to later purchasers, but I was told that because of the date of my installation that it could not apply to me.

Who is responsable for the statements you posted? Are you?, Or are they legally responsable because you were acting as their agent?

If what you say is true, it looks like you tried to go to bat for us, but the result still is that we do not have what we believed we were purchasing, a factory approved product.

Strange that the posts relating to warranty of the SC have been deleted. Several members have those posts saved to disk though.

John C.

Hey FeatherFoot,

I figured it was something like that, from what you've said in previous posts. I think you've done nothing but look out for us VX folks and I'm glad you gave us an explanation. I for one applaud your efforts and appreciate your attempts at promoting mods that actually improve the performance of the Isuzu 3.5L motor.

Now if I can only just get off my ***** and actually install the SC I've owned since last December.

-- Best, John

ALL members of this forum have the express right to recant or modify their own and no one else's postings. I'm glad for those that did keep your own back-up of the original SC thread as I do not and am not resposible to keep back-ups of specific nature. I do however, make regular, incremental back-ups of the entire site and if something changes, so does the back-up. I recommend to never use a posting that is made here or any forum as gospel. It's way too easy for the powers to be to change their minds. Get it in true writing, straight from the horses mouth. In some cases, that doesn't help either.
To keep this new subject on track let's keep the postings to the topic at hand, that's why I separated it in the first place. Please, make a separate thread to continue the discussion of the SC issue but, remember to keep it civil and if it can't be done, then take it off line. Thanks

Some of the posts were directed and some were made by others.

I still have legalities pending and can say no more.


Do a search for posts by Alpine supercharger guy and see what turns up.

I've spent a lot of money on products because of false claims and vowed I would not do that.


FF

So FF what's the next step to trying to get a chip made?

Would love to get some more out of the VX if it is possible.

-Dave

I would be interested in the 4 setting ECM reprogramming option.

I'm interested. For instance, I like the shift behavior of normal mode, but the added timing of Power mode. More with less downshifting would be nice.

Now I think one thing needs to be clarified, and no-one has mentioned it yet. That 30hp claim was on a 350cid GM...a 5.7l pushrod engine. Much bigger than ours, but lower tech. I highly doubt gains of 30hp will be seen on our little 3.5l engine. Maybe closer to 20 if I were to speculate. $350 is still a bargain for that.

I had a custom 4way chip in my Typhoon. Pretty cool to have options, but after a while you will most likely settle on just one. :) It's great having seat wime with all of them though, like we do with Power mode.

-Daver

Quote:

---

Originally posted by Daver
I highly doubt gains of 30hp will be seen on our little 3.5l engine.
-Daver

---

Actually the 5.7L engine got closer to 60 HP.

The 30 HP quoted was the estimate from the manufacturer for the 3.5L V6.

FF

I would be interested in a 2nd chip programmed for performance. I don’t know what the cost would be for that. Either that or a 2 setting ECM reprogramming option, one that goes from stock to performance. I am still under warranty and with the way Isuzu is being I don’t want to take any chances. I am honestly hesitant about changing my own oil. I do change it because I like knowing the job is done properly and with quality products but if I ever have problems I still wonder if they will try to deny me.

So John what is the next step to getting this chip into reality?

Quote:

---

Originally posted by Cyrk
So John what is the next step to getting this chip into reality?

---

Just be patient. They said it would be after the first of the year before they could fit it in.

FF

Cool, Thanks for the heads up.

Quote:

---

Originally posted by Baxman
$350 for +30 HP is a bargain! Keep in mind that if it sounds too good to be true it probably is. We were promised +49HP with the supercharger. I didn't dyno my pre-S/C'd VX, but after the installation it dyno'd 187 rear wheel HP, much to my disappointment.

Talk is cheap. Show me the dyno results, and I'll show you the $350.

Rick

---

If I recall the rear wheel HP of a Stock VX is about 166 at the top of it power band. (About 3500 RPM)

It's possible that I have the original dyno files on my Computer at my office. I'll see if I can dig them up.

Talked with the chip guy last week. He's helping John jr re-build his motor and said that the chip/programmer will have the ability to program/unprogram/re-program as we discussed earlier.

He has 4 or 5 different autos to program and restated that baring any thing funky in the ECU he hopes to have the "devvice" ready for sale by February.

FF

ive been waiting to read something like this since u last said something....:p
________
WEB SHOWS