more air to the turbo

moss765

moss765

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Apr 6, 2009
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i got a 66mm charger and its not gettin enough air at all i was wonderin if there was some way i could get more are to without replacin the stock intercooler jus yet..i didnt know if i could change the plumbin to the charger or not and btw i got a aFe cold air intake
 
moss765 said:
i got a 66mm charger and its not gettin enough air at all i was wonderin if there was some way i could get more are to without replacin the stock intercooler jus yet..i didnt know if i could change the plumbin to the charger or not and btw i got a aFe cold air intake
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If you think you're not getting enough air to the turbo make a wot blast with it as is and note the boost. Make another wot blast with the inlet of the compressor uncovered and note the boost. I did this to figure out my amsoil 4510 filter was costing me 8 psi of boost, i.e. not enough air to the turbo.
 
alright ill have to try that i mean my air filter is dirty but i cant afford to get another one right now so thats proly part of my prob but its jus really really laggy from the get go but as soon as it lights it lights hard
 
moss765 said:
alright ill have to try that i mean my air filter is dirty but i cant afford to get another one right now so thats proly part of my prob but its jus really really laggy from the get go but as soon as it lights it lights hard
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thought AFE's were cleanable/reusable?
 
Try what Nick said. A 66mm is going to be a laggy turbo in general. Might try tweaking your fuel settings. Do you have a ton of low end fuel? 370s aren't very efficient injectors either.
 
aFe is cleanable but ive tried and tried and this one jus isnt comin clean and i cant justify 80 bucks for a new one right now especially with me bein in college...and for injector wise would would you recommend runnin?
 
You can get an AFE replacement filter from I think it's peaks diesel for under $60. I'll get you a link when I get home.

What size exhaust wheel and housing does your 66 have? 12v's aren't going to light a turbo very easily.
 
BgBlDodge said:
You can get an AFE replacement filter from I think it's peaks diesel for under $60. I'll get you a link when I get home.

What size exhaust wheel and housing does your 66 have? 12v's aren't going to light a turbo very easily.
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alright thanks alot and exhaust wheel wise i have no idea i bought it used off of one of my friends and deft couldnt pass up the deal
 
you might want ot find out the specs on this charger, i didn't like the 66/65/14 that i had on my 12v, it was pretty laggy, and didn't make a whole lot of power. 12v's seem to run better with either a 62 or 64mm compressor. they dont have the flow like the 24v's do, and commonrails are ven better for flow. i think you would be alot happier with some like the 62/68/13ss that i just got from Engineered Diesel. it spools way better than the 66 ever did, has more boost while crusing in od, a broader powerband, just overall better driveability with the truck.
 
I was running a 66m on my 24v. i would switch between 250hp and 150hp injectors depending on street use or being at the track. Either injector provided only 3psi boost in OD on a level highway. The 66 is gonna spool slow, at least mine did due to the being a 16 as opposed to a 12. That being said I could light the turbo with a liberal amount of throttle, it wasnt horrible by any means just not super responsive.

Have you plugged the boost/defueling line to the p pump? What have you done to the pump if anything?

With the right plate and plugging the defuel line to the pump you will greatly help spool up.

As far as an injector I would want to throw atleast some 150hp injectors at the 66m. Remember the more turbo you have the more fuel you need to wake it up.

On the intake side, crap on the AFE, you want the distance from filter to inducer to be as short and as straight as possible. Pep Boys carries a 6 inch 45 degree turbo pipe that you can use to run a HUGE AFE filter on and pumps the filter between the passenger side battery and the engine.

Thats my 2 cents any how.

The intercooler isnt going to effect you air supply to the turbo as it isnt before the turbo
 
moss765 said:
aFe is cleanable but ive tried and tried and this one jus isnt comin clean and i cant justify 80 bucks for a new one right now especially with me bein in college...and for injector wise would would you recommend runnin?
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You going to unoh? I've seen a truck around that looks alot like the one in your avatar.
 
Bighorny said:
I was running a 66m on my 24v. i would switch between 250hp and 150hp injectors depending on street use or being at the track. Either injector provided only 3psi boost in OD on a level highway. The 66 is gonna spool slow, at least mine did due to the being a 16 as opposed to a 12. That being said I could light the turbo with a liberal amount of throttle, it wasnt horrible by any means just not super responsive.

Have you plugged the boost/defueling line to the p pump? What have you done to the pump if anything?

With the right plate and plugging the defuel line to the pump you will greatly help spool up.

As far as an injector I would want to throw atleast some 150hp injectors at the 66m. Remember the more turbo you have the more fuel you need to wake it up.

On the intake side, crap on the AFE, you want the distance from filter to inducer to be as short and as straight as possible. Pep Boys carries a 6 inch 45 degree turbo pipe that you can use to run a HUGE AFE filter on and pumps the filter between the passenger side battery and the engine.

Thats my 2 cents any how.

The intercooler isnt going to effect you air supply to the turbo as it isnt before the turbo
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all thats done to the pump is its bumped up to 20* timing 50cc delivery valves and the plate is removed. what do you mean by pluggin the defuel line?
 
give me a call sometime, maybe we can get something figured out for you, I have class in the mornings off the rest of the day. 812-212-6322.
 
At the back of the pump you have 2 lines that come to a T. One is from the turbo and one is from the intake. The one from the turbo defuels the pump once factory boost has been reached.
 
Bighorny said:
At the back of the pump you have 2 lines that come to a T. One is from the turbo and one is from the intake. The one from the turbo defuels the pump once factory boost has been reached.
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soo what would i need to do to them?
 
the line that leads to the turbo, cut it at the hose that links the 2 hardlines together and plug them up. After that the pump will fuel all the way to redline no matter what boost you are making. redline being whatever GSK you are running.
 
Bighorny said:
At the back of the pump you have 2 lines that come to a T. One is from the turbo and one is from the intake. The one from the turbo defuels the pump once factory boost has been reached.
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Thats not right. There is a line running into the back of the AFC from the intake manifold. All that does is sends boost the the AFC housing so that it will push the AFC foot forward and start fueling more as you get up on the boost.

The other line that some trucks have just run to the wastegate of the turbo. The wastegate has to have boost to it so that it can open when boost gets high enough. All you will do by blocking off that line is keep your wastegate from working. Some trucks didnt have this line at all. It has nothing to do with any kind of defueling. The governor springs are the only thing controlling the RPM a 12 valve will pull to.
 
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