PE Comp Question

[RodneyNichols]

Hello I've been a long time reader and I just finally became a member to this great site. I just purchased a pe comp and I was wondering if there is anyway of hiding the connection to the pump wire? I was told you could connect it under the pump where it is not very visible (to the dealers) instead of connecting it like the instruction show. I Also was wondering what kind of exhaust temp you could get without injectors? I'm looking for gauges to install but I was worried about exhaust temp before I can get the guages in.



Thanks very much in advanced. .

 

[Bill_L]

Instead of trying to find a way to hide the pump wire I think I would call up Blue Chip and get one of their pump covers. This is going to be your best bet.

I plan to get one when I get my Comp.



As for exhaust temps do you have the elbox installed to increase the boost? If not put it in there. The extra boost should bring down the EGT's



Bill

 

[RodneyNichols]

Thanks Bill. . I've tried doing a search on the Blue chip cover,but the seach is not working for now. Whats it the cover all about? What does it do for the pump wire?



Yes. The Elbow is installed but I was just wondering if I would have temp problems with the wire connected. Right now i'm running the wire disconnected until I get gauges and figure out about connecting the wire. With only 2k miles on the truck I don't want to lost the warranty right yet. .

 

[jwdeeming]

cummins-man,



Welcome to the TDR - glad you joined.



As for EGTs, what other mods have you done? You said no injectors, but have you done anything to open up the breathing, either intake or exhaust? I really can't stress the importance of those gauges enough, whether you punch that pump wire or not. And Bill is right, the boost elbow (if it applies to you) or otherwise modifying the wastegate to get boost numbers up is an important step to keeping temps down.



I had 4" exhaust and a big air filter installed before I put the Comp in, so I don't know how to estimate temps for you if you're stock. You need the gauges! The EGT will keep you out of trouble, and if you have an auto transmission, knowing that temp is a good idea, and the boost gauge will help you know what's going on and potentially diagnose problems.



Have fun!



JimD

 

[RodneyNichols]

JimD

The only other thing I've done was transfer my K&N filter from my other truck. The Elbows in and I'm in the process of looking for gauges. Injectors Later on down the road. I want to see how well the stock clutch will hold up to the comp w/ wire attached. My last truck was a 2000 5sp with 60hp BD injectors and a Plug-n-power and that clutch held up just fine.

 

[jwdeeming]

I think I would wait on the pump wire until you have gauges. Besides, maybe this pump cover thing turns out to be a way not to hack the wire. With your truck that new, it'd be nice to keep your warrantee intact if you can help it. I managed to get a new lift pump out of my warrantee a couple thousand miles before I went Comp, so that worked out well.

 

[RodneyNichols]

Jim, How do you like the Comp? I had the Edge pulse in for a couple of weeks and that one really worked good. The Diesel Doctor had to order a comp for my truck, so he gave me Pulse to try. I just thought if I was going to buy a new chip then I wanted the one that I could adjust. So far this comp is not giving me very good milage. 12mpg from the computer over head, and 17. 5 with the " Edge Pulse" Highway driving at 80. .



Do you have injectors? or are you just running the comp and 4" pipe. did you ever one the comp with out the wire? I'm just tring to figure out on what I'm missing.



thanks.

 

[Mark_Kendrick]

Cummins-man,

use a calculator not the overhead for MPG after mods.



I love my comp. best mod for the $ by far. I traded it for a Drag Comp and like it even more.



jwdeeming,

the comp dies not affect the lift pump... I got a new one under warranty on Monday and my truck is slightly modified



leave the fuel system stock as long as you're worried about lift pumps. they are good to well over 400hp.



Once you pierce the wire, the vp44 warranty is gone. The good news is if you keep an eye on the lift pump the injection pumps don't fail often.



l8r

MK

 

[MCummings]

http://www.getpower.com/bragging/BraggingRights_fuelsavings.cfm



Be carefull. Your overhead console will BS you alot once you start turning up the power.

You can really fool people that haven't ridden in your truck before,, LOOK 25MPG at 80MPH. Shuu---re



I have a PE COMP,, Nice setup, but I also have DD1's. You won't believe how much power that COMP has. it'll leave the PE Pulse in the dust. Remember the COMP is 120HP.

You need gauges,, otherwise ya won't know when EGT is high.

Empty with my DD1's and my Comp on 5x5 I can't really hurt my motor before I start getting into triple digit speeds, or break something else.



Towing a load is a COMPLETELY different story. Just to see what kind of EGT I COULD get out of my truck, I put my Comp on 5x5 at a stopsign and with a 20,000 pound Gooseneck in tow. I was scared to go WOT in 1st and 2nd I used 1/2 throttle, then in 3rd gear I went WOT and hit an easy 1500* then shifted to 4th and went WOT,, There went the pyro,, It was moving much faster then my tach, and speedo,, around it twisted, it went easily past 1600*,, Feeling lucky I stayed in it, WOT,,Watched that pyro keep twisting,, By the time I let out, the needle was pointing Straight down, if not a little backwards.

I guess an EASY 1800*.

Anybody recall what aluminum pistons melt at ????

With my Comp on 3x5 it stays cool enough, even with sustained WOT.



Get gauges, especially if your making your VP44 pump 120HP worth of extra fuel,, What happens if your lift pump dies at WOT but is fine at Idle? Or Vice versa? Mine did that,, bad at idle, but did good when on it.



Merrick Cummings Jr



P. S. Nice to have you on-board the TDR

 

[RodneyNichols]

Knowone has said how much Power/Mods can I do with the stock clutch? Comp on 5x5 plus how big of injectors, before things start slipping. Besides the tires.



Thanks for the infor. . No pump wire unit gauges. .

 

[Chipstien]

Uh- Oh....

I have an auto but from what I have read says that a Comp on 5x5 and everything else stock should be easily enough to slip the clutch. Happy Bombing.

 

[CRegal]

you wont slip the clutch on 5/5 in normal conditions. hard acceleration from rolling wont do it either. The only way I kan slip my stock clutch is to lite up the rear in 2nd, build 30 psi or high boost and go into 3rd... then the clutch slips like crazy. That is with just a comp/4" exhaust/afe filter/ 4. 10 rear/ & a 6 speed.



Now mind you I have 4 wheels in the rear, & with all that traction the clutch slips before the tyres will.



Cole



When u add injectors that clutch will go bye bye..... I am adding dd3's by the end of the month, but hey I have a sbc fe sitting in my trailer just beggin to b put in...

 

[juicedcummins]

I am very impressed with the Comp it rocks!:--)

 

[RodneyNichols]

Blue Chip Cover

Earlier in this post they mentioned a "Blue Chip Cover", what is, and where can I read about this. . They told me to get this when I hook the pump wire up.



Thank You in advance. .

 

[jwdeeming]

Jim, How do you like the Comp? ... . Do you have injectors? or are you just running the comp and 4" pipe. did you ever one the comp with out the wire?

cummins-man,



I love the Comp, but the longer I have it, the lower the settings I use for daily driving. 3x2 provides a nice sporty feel without fogging everybody at stoplights. I do have injectors - DDIIs. I never ran the Comp without the pump wire punched but I suppose it's somewhat akin to running the submenu at low settings. It seems to me the lower I run the submenu, the more I miss the "bottom end" power, or low-throttle responsiveness. But that's where she smokes bad too, so to be polite I'm learning to live without that.

In a couple more weeks I'll be doing my first high-altitude livestock tow - be real interested to see how much control that Comp gives me over EGTs.

jwdeeming, the comp dies not affect the lift pump... I got a new one under warranty on Monday and my truck is slightly modified

Mark, you didn't really take your truck to the dealer with the comp box IN, did you? Holy cow! I would have thought they would have you tar'n'feathered and run out of town in a Chevy Avalanche or something

 

[Mark_Kendrick]

The blus chip cover is from blue chip diesel. . its a cover for the vp44 that taps the inside of the vp44 instead of the wire. '



My clutch held through DD3s and the PE Comp. It should hold at least through the Comp.



The bug will bite. . you'll be saving for a clutch, turbo, and 4"ex before you know it!!!!!!!!

 

[Mark_Kendrick]

I took it in with the Comp on the truck and on level 1/1 (lower fuel level than stock)



and the B1. . and The BHAF. . and Injectors . . and 4" ex ... and the hood.



when I called I said Ihad moded the truck . . they said that could void the warranty. . I said that I had not alter ther fuel system prior to the vp44 and that the lift pump had not been touched. . they said OK

 

[45A1]

just a thought here... i had to eat the cost of a vp-44 because i did not have a fuel pressure guage and most likely had a bad lift pump. shortly after scotchlocking the pump wire and test driving it the whole thing died. bad experience all around. the comp was great for a short while, but i'm a little gunshy about it now and am running an ez. i guess my advice to anyone wanting a comp, would be to have an in cab fuel pressure guage first. those injection pumps are EXPENSIVE

 

[Mark_Kendrick]

I'll second that. A fuel pressure guage is a must.

 

[MCummings]

'98's and early '99's had weak '44's. They would heat up, then when ya would let up on the go pedal a disk would warp and cease 'em up tight. They were ok in stock power, but as soon as More Power (over stock) was demanded they couldn't handle the extra fuel being pumped.



The new 44's are much stronger. Just keep Fuel Pressure above 8PSI (At the VP44 inlet)



Merrick Cummings Jr