Engine/Transmission (1998.5 - 2002) comp or ez ?

[snidley1]

I'm going to sell my superchips programmer and was thinking of getting an

ez or maybe a comp. Right now I leaning more towards a comp but I don't

A whole lot about them. I have a stock clutch with 95,000 on it and I know

that I will need to upgrade it soon but would like to put that off as long as possible. Is it true that the comp on lower settings is the same as a ez?

Will my stock turbo build enough boost for it? Right know I have a boost

elbow out of an ez on it and it will build over 30 pounds. What does it mean to tap the pump wire? and can I still adjust it in the cab if I don't tap the pump wire.

Right Know my setup is stage 1 jammer nozzles with a 4 inch exhaust and

isspro boost and pyro, K/N with boost elbow Any help would be appreciated

I have seen were other members praise them and I am sure someone has

all the answers.

 

[SLJolley]

If you get the Comp you can install it without tapping the pump wire and it will be just like an EZ. I would get the Comp know and run it this way so that you save some money in the long run.

 

[DieselRam30]

I agree with the previous post. Even if you decide not to tap the pump wire now, you can in the future if you want to without having to buy a new box. Tapping the pump wire refers to allowing the Comp to add extra fuel via control of a solenoid inside the VP-44 injection pump. This is not necessary when using a Comp; it is the just the way to make the most power with them. Your stock turbo should be fine with just an EZ or running the Comp without a pierced pump wire. If you do pierce the pump wire, you'll probably be ok, just watch the EGTs, but that's a good rule of thumb for all upgrades. As far as the clutch, probably/might need it if no wire tap, definitely need it at least eventually with a wire tap.

 

[bbodammer]

ditto these guys. I put the comp on my truck without piercing the wire and it worked great. I have an auto. so I am waiting patiently for enough money to upgrade. I have the small turbo on mine and it kept up with the comp. I eventually felt the need to throw smoke and tapped the wire. My turbo still did ok, but on higher settings egts climbed quick. So then I ordered and installed the phat shaft 62. Go with the comp. You will be much happier and later you won't have to buy another box, just tap when your ready. Good luck!!!

 

[DMcPherson]

I have an ez right now. I love it but I want more now, and the comp would have been the better choice. start low and work your way up so you dont get bored with it (as quick anyway ) I will probably be buying one soon. there are some companies that make vp covers that have a set screw that peirces the wire so you cant tell its been tapped and gives it a nice look.

 

[SnoKing]

I'm going to sell my superchips programmer and was thinking of getting an

ez or maybe a comp. Right now I leaning more towards a comp but I don't

A whole lot about them. I have a stock clutch with 95,000 on it and I know

that I will need to upgrade it soon but would like to put that off as long as possible. Is it true that the comp on lower settings is the same as a ez?

Will my stock turbo build enough boost for it? Right know I have a boost

elbow out of an ez on it and it will build over 30 pounds. What does it mean to tap the pump wire? and can I still adjust it in the cab if I don't tap the pump wire.

Right Know my setup is stage 1 jammer nozzles with a 4 inch exhaust and

isspro boost and pyro, K/N with boost elbow Any help would be appreciated

I have seen were other members praise them and I am sure someone has

all the answers.

I run my Comp in the EZ mode (no pump tap). I set the Comp up for:



1x1

2x2

3x3

4x4

5x5



That way if I change the main level with the incab up and down bottoms, I am effecting the sublevel that are in effect without the pump wire. Sublevels are harder to set, you have to hold the power buttom in etc etc. I run it on 3 most of the time, but punch it up to 5 once in a while. The Sublevels control the point at which the shock fueling comes in. 3 is near stock, 1 and 2 is later, and 4 and 5 is sooner.



Not sure how you are currently running 30 lbs of boost without the ECM defueling like mad. Do you have a boost fooler, you said you had a boost elbow?????



The Comp will do the boost fooling for you.



Chris

 

[snidley1]

It usally only hits 30lbs under a good load. I just have a 30lb boost guage getting a 60

would have been the thing to do though. The boost elbow is one that my buddy got with a edge ez might be the same one that comes with the comp? Is 30lbs to much

for a stock turbo. Also this might be dumb to ask but what if boost fooling????? I still

have alot to learn I know. My goal is to get enough power to realy make my truck

fun without killing it or making it worthless to try to pull with for fear of nuking it!!!

Am I headed in the right direction.

Thanks for the help!!!!!!!!!

 

[DMcPherson]

the boost fooler is pretty much what it sounds like. it basically makes the ecm think that its only making 20psi when its making well anything. lol. that stops the computerfrom defueling. I think i read something about a clutch, so I am assuming also that it is a manual trans, in shich case other than the clutch ou have nothing to worry about, do the comp, and make sure you buy a set af gauges, it sounds like you have a boost gauge, so egt and fuel pres. would be good aditions

 

[bbodammer]

snidley1

i think your pretty safe with 30-38psi with that turbo. it will probably produce more, but will likely be out of its efficientcy range. you will love the comp. get the plate that others have talked about, it makes it easy the tap the wire when your ready and less easy to detect if you have to get any warranty work done. I only run my comp higher than 1x5 if I need to show off and throw smoke on the chevs and frds. But as soon as the trannys done, watch out!! :-laf

 

[Black Cloud]

I went with the comp over the Ez just because I plan to have more upgrades in the future. I run the comp on 1/5 and like the previous poster I turn it up to 5/5 when I want to show off, it really does pick up the power. I dont think it would hurt anything if you go ahead and tap the wire and run it on a low setting. I have 117k and a stock clutch on mine and everything handles it good.

 

[jkidd]

I thought the comp would give more power than it did. I had a Van AAken Box and really liked it. There is more power with the comp, guess it is not what I expected 50HP to do. I am new to Diesels and know that 25HP+ in my supercharged car felt like a lot more power than 50-60 HP in the CTD.



Changing the power levels is nice though.

 

[snidley1]

I am about sold on the comp but could someone explain what the 1x5 and

5x5 mean I know this in the settings but what does each number mean.

I expect that one is when to add fuel with boost and one is the amount of

fuel is this correct???? Thanks for all the responses!!

 

[SnoKing]

I am about sold on the comp but could someone explain what the 1x5 and

5x5 mean I know this in the settings but what does each number mean.

I expect that one is when to add fuel with boost and one is the amount of

fuel is this correct???? Thanks for all the responses!!

The main levels 1xX, 2xX etc control the injection of additional fuel if the pump in tapped. 1xX is no additional and 2-5 will increase fueling. The Sublevels Xx1, Xx2 etc control if the fuel comes on later or sooner. SNOKING

 

[SLJolley]

I thought the comp would give more power than it did. I had a Van AAken Box and really liked it. There is more power with the comp, guess it is not what I expected 50HP to do. I am new to Diesels and know that 25HP+ in my supercharged car felt like a lot more power than 50-60 HP in the CTD.



Changing the power levels is nice though.

The van Aaken brings on the power alot quicker. It is much better than the EZ IMO. Also this allows some trucks to get a nice fuel economy gain also. We have a group of school buses here that run the van Aaken boxes just for the MPG gain.