thinking about takeing my intercooler of becasause my turbo doesn't spool fast enough and the most boost i could get out of it was 5 pounds at redline and i'm getting ready to haul some cars 800 miles....shouldn't it build more boost when i'm hauling? and if so do you think it will make enough boost to have the same power it did before......i put it on in the first place becasue when i would haul anything it would try to go over 10 psi more towards 15 and i know there isn't any point in running that without the intercooler..its a non wastegated banks turbo..all opinions welcome just trying to make sure the truck will make enough boost to haul my stuff. thanks guys

 

Does the truck still feel as powerful as before the IC install? Adding the IC will drop your boost, but the lack of boost power is usually made up in the fact you have cooler, denser air instead of just lots of hot air. I would check all your piping for leaks, maybe some soapy water on the joints while the motor in running and just give it a shot pulling the cars. Have you noticed a drop in EGT since the IC was put on?

 

its kinda hard to tell if it feels as powerfull as before because i also put the zf5 spd in at the same time....i would prolly have to say pretty close...i dont really know if it dropped my egts because i've never driven the truck when its 100 Degrees outside wich it has been pretty much every day since i moved here i think ide be better off leaving it on because like i said without it it runs over 10 psi...thanks for the input man

 

what size pipe did you run from the turbo to the IC and from the IC to the intake?

 

its all 2.5.....my turbo just doesn't seem to be spooling very fast with or without the intercooler....i ran it without it hooked up and i mean yeah i get more boost but it just doesn't seem to spool as fast as before....plus i noticed all the piping has a bunch of oil in it and so does the intercooler.

 

it should have some oil from the intake side of your turbo that sucks the out out of the ip gear cover. And from what I've red is that when you IC a IDI you should only use 2 inch piping cause if any bigger your turbo would lag and not build enough boost. They will still lag a little bit with the 2 inch piping but you just turn of the IP a 1/2 to 3/4 turn and your turbo shouldn't lag and you will be able to build 10+ psi of boost

 

yeah i get what ur saying but my pump is all the way up...... yeah i know the oil on the intake side is normal...i dnt know how much boost it will run when i have a heavy loaded trailer on it.....i'm hoping it will build around 10 otherwise i dnt want it on there.....my mistake i just measured it and the piping is 2"..... when i get on it hard to redline in like 3rd i only get 4-5 psi...i do appreciate the help

 

oh really? pump maxed out? They make a db4 pump that is more hp. And anytime I don't know why it isn't building more boost bud?

 

well without the intercooler i usually only ever hit 5 psi around town and what not but when i would haul/tow anything it was over 12...so i'm hoping with the trailer on it it will run enough to haul it

 

i dont see why not but here is some math. Every one pound of boost= 10 hp depending on displacement for every 10 degrees cooloer you gain 1% in power so a 100 degrees would be 10 hp. every 1/8-1/4 turn on a pump is about 10-15 hp. so your boost might be lower but your tempature that goes into the intake is quit a bit cool so you should be about the same a mount of power if not a tad more.