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compressor #s

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I was typing with a friend on chat here & he said that the intercooled compressor wheel & housing are a lil bigger

I have a hot pipe one & an 18 CM housing on the exhaust

when I recently changed the ex housing I noticed a lil too much play in the bushings & will see a puff of blue smoke on startup & take off after idling a while (common symptoms of loose bushings to my knowlege) also saw mabey the slightest bit of oil inside the old housing :-( mabey I spilled it there?

so I have a GREAT local turbo builder I thought Id have him send me the larger wheel balanced to another turbine & shaft & a kit along with the larger compressor housing so I can kit mine & not have my truck down sending stuff out to be balanced

now to the question;)

can someone give me the #s for the larger ICd compressor?

& is our turbo just known as a holset H1C? is there any other part #s for either or both?

Im gona call some of my turbo guru guys & try to hopefuly aquire more trim info on compressors so we know what to ask for & what other trims there are aside from the 2 I know of on the 1st genners

thank you soo much

jak

PS

after running like 2-3 tanks of fuel through the truck the idle is begining to get real smoothe sometimes it feels like you could stand a nickel up on the engine it seems to get better day by day over the last 4 days especialy

:D

thanks again

JAK
 
Not sure if this will help but here are the Cummins part numbers for the compressor wheel and housing of my 93 H1C.



Compressor housing #3528887

Compressor wheel #3525398



Jay
 
thank you Ill see if that works

my turbo guy said Id have to drive down there (2 hours)tear down my turbo & find the compressor in his pile of turbo parts

it would be much easier if I had #s that will work for him to just send me what I need

this may be a good time for some of the basic turbo knowlege I have learned hopefuly it will be helpful

a slightly larger compressor side wil slightly increase lag but realy helps flow & works more eficiently at higher flow/boost levels usualy producing less heat at these higher flow/boost levels but being less eficient at lower boost/flow levels.

the smaller compressor is more eficient at lower flow/boost levels

because of my weight about 9500 lbs & my 4:10s the 18 CM exhaust housing & a larger compressor will work well for me because Im working the engine at a higher rpm/flow usualy

allot of the ricer honda types try to run huge compressors on small turbine/housings trying to get quick spool up & high boost but what happens is that you end up compressing aginst the turbine section & making allot of heat in the turbine section at higher flow levels which =s hotter pistons & valves. high boost low flow



this stuff reguarding the exhaust side has been gone over pretty well here

which sizes for which aplications

to some degree the compressor side is the same

a smaller compressor will spool up a lil quicker +- but run out of steam higher in the rpm range

running higher boosts with a smaller compressor makes the turbo spin faster than it should thus loosing eficiency & producing heat on the intake side = heat in the exhaust & ofcourse hotter intake temps = less dence air & less power

definatly a better flowing exhaust will improve spool up because of pressure diference before & after the turbine

the intake is important because a restrictive intake produces more heat on the compressor side because the compressor isent designed to pull air in as much as to push it out

anyway I think this good stuff to understand & definatly the explinations I give are verry basic & please corect me if you see anything rong or tell me to shut up if I type too much

:D

thanks again this is a great group & Im glad I found you Im learning allot here & greatly apriciate it

JAK

edit

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89 D350 11 foot C&C fresh getrag advanced timing tiny bit more fuel de kinked exhaust
 
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