my 98.5 feels a a bit to lazy. it has a dr. pef stg4 with their 100 horse sticks and it doesn't seem like it runs good for what it has. im going to try stacking a blue box on it and see what happens unless i should try something else?

 

If it is losing power you should not add another box as a band aid- Get the truck checked for codes, measure fuel pressure, check air filter and all that small stuff instead. I'd also check all the connectors of the box.
I do recall some of the Dr. Performance products being discussed in some forums, some comments on the boxes not working correctly wthout setting codes IIRC.
If the truck is an auto you might just be slipping the tranny and not get the power to the axle.

AlpineRAM

 

no its a stand. but and i'm sure the chip is hooked up right but it just seems a little slow. do you think i could need a bigger turbo.

 

Go and have the codes pulled at autozone. Do you have a fuel pressure gauge? What's your fuel pressure at? How many miles on the truck?

 

there are about 170k on it and last time i had a chip stacked on it a boost code came up but thats been a while. i had an 02 also and it with i dr. perf. stg3 and it ran better than my 98 that has sticks and a chip

 

I'm willing to bet that the injection pump is on it's way out. There's no reason why your 98 shouldn't scream with those mods.

 

if it is going out then it has been going out for 20k. i want more but im not shure what the next mod should be.

 

It's not uncommon for them to take a long time to die. My buddy rjohnson didn't even realize his was dead until he couldn't build boost off the line and only dynoed 450hp with mach 4's, TST/EZ, water/meth, and an HX55.

 

In addition to fuel pressure I would look at the boost.
Do you have a boost gauge, what boost are you seeing from your turbo?
Do you have a boost leak? Do you have a lot of smoke?

Good luck

George

 

no hardly any smoke i thought that was a little strange and i need some gauges just dont have any.

 

You oughta put out a pretty decent cloud with that stuff. I'm betting that your lift pump and possibly your injection pump is dead. Go and have the codes pulled at autozone and see what they pull up. Hope it's not a P0216 code.

 

a phat turbo

 

I'm a dealer with dr perf. and I have had to defect over ten boxes in the last 6 months

I now refuse to sell them any longer Im not dissing your truck or nothin its just i think with my experience that their CRAP

jmo
jake

 

thanks for the info i will try the codes and see what happens